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Sample records for pulmonary hyalinizing granuloma

  1. Pulmonary hyalinizing granuloma presenting with dysphagia: a rare presentation.

    Science.gov (United States)

    Khan, Fazal; Hamid, Arsalan; Fatima, Benish; Hashmi, Shiraz; Fatimi, Saulat

    2017-01-01

    A 25-year-old man presented with a 2-month history of dysphagia and past history of pulmonary and intestinal tuberculosis. A barium swallow showed a point of constriction 42 mm above the gastroesophageal junction. Computed tomography revealed large opacities in bilateral lung fields, encroaching more on the esophagus. The lesion progressively compressed the esophagus as it moved inferiorly. A right posterolateral thoracotomy was performed for sub-anatomical resection of the mass. A biopsy revealed homogenous whirling hyalinized collagen fibers, highly suggestive of pulmonary hyalinizing granuloma, with no evidence of malignancy. Pulmonary hyalinizing granuloma should be considered in the differential diagnosis of longstanding dysphagia.

  2. Hyalinizing Granuloma: An Unusual Case of a Pulmonary Mass

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    Viviane Brandão

    2010-01-01

    Full Text Available We describe the case of pulmonary hyalinizing granuloma in a 34-year-old asymptomatic man who presented with a pulmonary nodule apparent by chest radiography and computed tomography (CT. He had a history of previous treatment for tuberculosis. His laboratory data were normal. Bronchoscopy and CT-guided percutaneous transthoracic fine needle aspiration cytology were inconclusive. The diagnosis was revealed after the histopathological examination of an open lung biopsy.

  3. Pulmonary Hyalinizing Granuloma Associated with Idiopathic Thrombocytopenic Purpura

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    Christopher Coleman

    2014-01-01

    Full Text Available Pulmonary hyalinizing granuloma (PHG is a rare, benign lung disease of unknown etiology. It manifests as discrete, rounded nodules within the lung parenchyma. A 39-year-old woman presented for investigation after pulmonary nodules were found incidentally. Chest computed tomography showed multiple, discrete, non-enhancing pulmonary nodules bilaterally. Positron emission tomography (PET was negative. Biopsy demonstrated a non-specific lymphoplasmacytic infiltrate. Open resection yielded two nodules consistent with hyalinizing granulomas. The differential for multiple pulmonary nodules is broad. PET scan can help rule out metastatic disease, although some cancers are not hypermetabolic on PET. Furthermore, some non-malignant conditions, including hyalinizing granuloma, can show increased activity on PET. PHG should be included in the differential of multiple pulmonary nodules, especially if nodule stability can be demonstrated and/or needle biopsies are non-diagnostic. Associated immune-mediated conditions, such as idiopathic thrombocytopenic purpura (ITP in our patient, may also favor HG. In this case report we find an association between PHG and ITP.

  4. Computed tomography findings in patients with pulmonary hyalinizing granulomas: a case report

    International Nuclear Information System (INIS)

    Marchiori, Edson; Valiante, Paulo Marcos; Correia, Ana Helena Pereira; Carneiro, Leonardo Hoehl; Caldas, Carolina Rodrigues; Souza Junior, Arthur Soares

    2003-01-01

    Hyalinizing granulomas are benign fibrotic lesions that generally present multiple nodules seen on radiological examinations, which are frequently cavitary and/or calcified lesions. We report a case of a 28 year-old-woman with hyalinizing granulomas probably secondary to a previous tuberculosis infection. Hyalinizing granulomas should be included in the differential diagnosis of patients with multiple pulmonary nodules. (author)

  5. Pulmonary hyalinizing granuloma and retroperitoneal fibrosis in an adolescent

    International Nuclear Information System (INIS)

    Young, Adam S.; Binkovitz, Larry A.; Adler, Brent H.; Nicol, Kathleen K.; Rennebohm, Robert M.

    2007-01-01

    We describe a 15-year-old boy who developed pulmonary hyalinizing granuloma (PHG) and retroperitoneal fibrosis (RPF). His PHG and RPF were not associated with histoplasmosis or tuberculosis and appeared to represent idiopathic autoimmune phenomena. This is the first reported case of PHG in a pediatric patient and the fourth reported co-occurrence of PHG and RPF. The use of F-18 fluorodeoxyglucose positron emission tomography in the diagnostic and follow-up evaluation of PHG is reported. (orig.)

  6. Pulmonary hyalinizing granuloma and retroperitoneal fibrosis in an adolescent

    Energy Technology Data Exchange (ETDEWEB)

    Young, Adam S.; Binkovitz, Larry A.; Adler, Brent H. [Columbus Children' s Hospital, Children' s Radiological Institute, Columbus, OH (United States); Nicol, Kathleen K. [Columbus Children' s Hospital, Department of Pathology, Columbus, OH (United States); Rennebohm, Robert M. [Columbus Children' s Hospital, Department of Rheumatology, Columbus, OH (United States)

    2007-01-15

    We describe a 15-year-old boy who developed pulmonary hyalinizing granuloma (PHG) and retroperitoneal fibrosis (RPF). His PHG and RPF were not associated with histoplasmosis or tuberculosis and appeared to represent idiopathic autoimmune phenomena. This is the first reported case of PHG in a pediatric patient and the fourth reported co-occurrence of PHG and RPF. The use of F-18 fluorodeoxyglucose positron emission tomography in the diagnostic and follow-up evaluation of PHG is reported. (orig.)

  7. Pulmonary hyalinizing granuloma: Bilateral pulmonary nodules associated with chronic idiopathic thrombocytopenic purpura

    International Nuclear Information System (INIS)

    Satti, Mohamed B.; Batouk, Abdelnasir; Ahmad, Mohamed F.; Abdelaal, Mohamed A.; Abdelaziz, Muntasir M.

    2005-01-01

    We report a case of a 30-year-old female who had been treated periodically with steroids for idiopathic thrombocytopenic purpura ICTP over the last 10 years. Recently, during the course of investigation, she was found to have incidental asymptomatic multiple pulmonary nodules on chest CT. Following a needle biopsy to exclude malignancy, 2 nodules were excised and were histologically confirmed as pulmonary hyalinizing granuloma PHG. The remaining 2 nodules regressed on increasing her dose of steroids. The case is discussed with emphasis on the histological and radiological differential diagnosis, in addition to including ITP among the spectrum of immunologic conditions associated with PHG. (author)

  8. Granuloma hialinizante de pulmão recidivante Recurrent pulmonary hyalinizing granuloma

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    Guilherme D'Andréa Saba Arruda

    2010-10-01

    Full Text Available Relatamos o caso de um paciente de 61 anos, masculino, internado com objetivo de exérese de massa pulmonar para estudo anatomopatológico. O paciente apresentara anteriormente um quadro de febre, tosse seca e dor torácica, associado à presença de massas pulmonares detectadas por radiografia de tórax, tendo sido submetido em duas ocasiões (1976 e 1981 a toracotomia para a investigação diagnóstica, sem diagnóstico anatomopatológico conclusivo. A TC de tórax revelou volumosas massas com áreas de calcificação em ambos os campos pulmonares. O material do estudo anatomopatológico foi compatível com granuloma hialinizante de pulmão. No pós-operatório, o paciente apresentou vários episódios de broncoespasmo que foram revertidos com medicação sintomática. Foi mantido com prednisona na dose de 40 mg/dia com boa evolução clínica até o envio deste relato.We report the case of a 61-year-old male patient who underwent surgical excision of a lung mass for anatomopathological study. The patient had previously presented with fever, dry cough, and chest pain, together with lung masses detected by chest X-ray, and had undergone thoracotomy for diagnostic investigation on two occasions (1976 and 1981, although a conclusive diagnosis had not been made. A CT scan of the chest revealed large masses with areas of calcification in both lung fields. The anatomopathological study was consistent with pulmonary hyalinizing granuloma. In the postoperative period, the patient experienced several episodes of bronchospasm, which was reversible with the use of symptomatic medication. At this writing, the patient was receiving maintenance therapy with prednisone (40 mg/day and had shown clinical improvement.

  9. Experimental pulmonary schistosomiasis: lack of morphological evidence of modulation in schistosomal pulmonary granulomas Esquistossomose pulmonar experimental: falta de evidência morfológica de modulação nos granulomas esquistosomóticos pulmonares

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    Maura R. F. Souza Vidal

    1993-10-01

    Full Text Available Numerous pulmonary schistosome egg granulomas were present in mice submitted to partial portal vein ligation (Warren's model. The granulomas were characterized by cellular aggregations formed within alveolar tissue. Main cellular types were macrophages (epithelioid cells, eosinophils, plasma cells and lymphocytes. These cells were supported by scanty fibrous stroma and exhibited close membrane contact points amongst themselves, but without forming specialized adhesion apparatus. When granulomas involved arterial structures, proliferation of cndothelial and smooth muscle cells occurred and fibrosis associated with angiogenesis became more evident. Granulomas formed around mature eggs in the pulmonary alveolar tissue presented approximately the same size and morphology regardless of the time of infection, the latter being 10, 18 and 25 weeks after cercarial exposure. This persistence of morphological appearance suggests that pulmonary granulomas do not undergo immunological modulation, as is the case with the granulomas in the liver and, to a lesser extent, in the intestines. Probably, besides general immunological factors, local (stromal factors play an important role in schistosomal granuloma modulation.Em camundongos submetidos à ligadura parcial da veia porta e infecção pelo Schistosoma mansoni, os granulomas periovulares apareceram em grande número nos pulmões, comprovando a validade do modelo de Warren. Histologicamente os granulomas eram representados por agregados celulares compactos no seio de escasso estroma. Os macrófagos (células epitelióides e eosinófilos eram os elementos celulares predominantes, vindo em seguida os linfóticos e plasmócitos. Ultraestruturalmenle, as células do granuloma exibiam íntimo contacto de suas membranas, com varios pontos de adesão, mas sem formar estruturas juncionais mais específicas. Os granulomas formados em torno a ovos maduros tinham tamanho, forma e composição celular similares ap

  10. A case of pulmonary Serratia marcescens granuloma radiologically mimicking metastatic malignancy and tuberculosis infection.

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    Das, Joyutpal; Layton, Benjamin; Lamb, Harriet; Sinnott, Nicola; Leahy, Bernard C

    2015-11-01

    Serratia marcescens is a saprophytic gram-negative bacillus capable of causing a wide range of infections. A 57-year-old female was admitted to our hospital for four weeks with community acquired pneumonia. A chest x-ray, six weeks after discharge, demonstrated multiple, bilateral 'cannon ball'-like opacities and mediastinal lymphadenopathy which were highly suspicious of disseminated malignancy or tuberculosis. The only symptom that this patient had was a productive cough. She had multiple commodities, but no specific immunodeficiency disorder. Interestingly, her sputum and bronchial washing samples grew S. marcescens. The computed tomography-guided lung biopsy demonstrated necrotic granulomatous changes. There was no pathological evidence of tuberculosis or fungal infection, malignancy or vasculitis. There are only a handful of reported cases of Serratia granulomas. Thus, we are reporting a rare instance of pulmonary Serratia marcescens granuloma radiologically mimicking metastatic malignancy and tuberculosis infection. © The Author(s) 2015.

  11. Pulmonary Changes in Preterm Neonates with Hyaline Membrane Disease (a Clinicomorphological Study

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    A. M. Golubev

    2009-01-01

    Full Text Available Objective: to reveal lung morphological changes in preterm neonatal infants with hyaline membrane disease (HMD in the use of exogenous surfactants and artificial ventilation. Materials and methods. Case histories and autopsy protocols were analyzed in 90 preterm neonates who had died from severe respiratory failure. All the neonates were divided into 4 groups: 1 20 (22.2% infants who had received the exogenous surfactant Curosurf in the combined therapy of HMD; 2 19 (21.1% babies with HMD who had taken Surfactant BL; 3 25 (27.8% surfactant-untreated infants who had died from HMD; 4 26 (28.9% very preterm neonates with extremely low birth weight who had died within the first hour of life. The lungs were histologically and morphometrically examined. Results. The study demonstrated the specific course of HMD when exogenous surfactants and artificial ventilation were used. The contributors to the development of the disease are intranatal amniotic fluid aspiration and intranatal fetal hypoxia. Conclusion. Artificial ventilation and the use of exogenous surfactants do not block the generation of hyaline membranes. The latter differ in formation time, form, and location. The differences in a cell response to hyaline membranes were found in the neonatal infants receiving exogenous surfactants. The characteristic morphological signs of the disease for all the neonates enrolled in the study are alveolar and bronchial epithelial damages and microcirculatory disorders. Key words: preterm neonatal infants, hyaline membrane disease, exogenous surfactants, artificial ventilation, histology, morphometry.

  12. Multinucleated giant cell cytokine expression in pulmonary granulomas of cattle experimentally infected with Mycobacterium bovis

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    Pathogenic mycobacteria of the Mycobacterium tuberculosis complex such as Mycobacterium bovis, induce a characteristic lesion known as a granulomas. Granulomas represent a specific host response to chronic antigenic stimuli, such as foreign bodies, certain bacterial components, or persistent pathoge...

  13. Lesion-Specific Immune Response in Granulomas of Patients with Pulmonary Tuberculosis: A Pilot Study.

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    Selvakumar Subbian

    Full Text Available The formation and maintenance of granulomas is central to the host response to Mycobacterium tuberculosis (Mtb infection. It is widely accepted that the lungs of patients with tuberculosis (TB usually contain multiple infection foci, and that the granulomas evolve and differentiate independently, resulting in considerable heterogeneity. Although gene expression profiles of human blood cells have been proposed as biomarkers of Mtb infection and/or active disease, the immune profiles of discrete lesion types has not been studied extensively. Using histology, immunopathology and genome-wide transcriptome analysis, we explored the immunological profile of human lung TB granulomas. We show that although the different granulomas share core similarities in their immunological/inflammatory characteristics, they also exhibit significant divergence. Despite similar numbers of CD68+ macrophages in the different lesions, the extent of immune reactivity, as determined by the density of CD3+ T cells in the macrophage rich areas, and the extent of fibrosis, shows considerable variation. Both quantitative and qualitative differences among significantly differentially expressed genes (SDEG were noted in each of the lesion types studied. Further, network/pathway analysis of SDEG revealed differential regulation of inflammatory response, immune cell trafficking, and cell mediated immune response in the different lesions. Our data highlight the formidable challenges facing ongoing efforts to identify peripheral blood biomarkers due to the diversity of lesion types and complexity of local immune responses in the lung.

  14. Positive staining for cellulose in oral pulse granuloma

    DEFF Research Database (Denmark)

    Virkkunen, Sirke; Wolff, Henrik; Haglund, Caj

    2017-01-01

    Objective: Oral pulse granuloma (OPG) is an oral inflammatory lesion characterized by the presence of hyaline rings with numerous multinucleated giant cells. The etiopathogenesis of this lesion is thus far unclear, as is the composition of the hyaline rings. Our aim was to investigate whether...

  15. Polyacrylate/nanosilica causes pleural and pericardial effusion, and pulmonary fibrosis and granuloma in rats similar to those observed in exposed workers.

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    Zhu, Xiaoli; Cao, Wen; Chang, Bing; Zhang, Linyuan; Qiao, Peihuan; Li, Xue; Si, Lifang; Niu, Yingmei; Song, Yuguo

    2016-01-01

    Nanomaterials offer great benefit as well as potential damage to humans. Workers exposed to polyacrylate coatings have pleural effusion, pericardial effusion, and pulmonary fibrosis and granuloma, which are thought to be related to the high exposure to nanomaterials in the coatings. The study aimed to determine whether polyacrylate/silica nanoparticles cause similar toxicity in rats, as observed in exposed workers. Ninety male Wistar rats were randomly divided into five groups with 18 rats in each group. The groups included the saline control group, another control group of polyacrylate only, and low-, intermediate-, and high-dose groups of polyacrylate/nanosilica with concentrations of 3.125, 6.25, and 12.5 mg/kg. Seventy-five rats for the 1-week study were terminated for scheduled necropsy at 24 hours, 3 days, and 7 days postintratracheal instillation. The remaining 15 rats (three males/group) had repeated ultrasound and chest computed tomography examinations in a 2-week study to observe the pleural and pericardial effusion and pulmonary toxicity. We found that polyacrylate/nanosilica resulted in pleural and pericardial effusions, where nanosilica was isolated and detected. Effusion occurred on day 3 and day 5 post-administration of nanocomposites in the 6.25 and 12.5 mg/kg groups, it gradually rose to a maximum on days 7-10 and then slowly decreased and disappeared on day 14. With an increase in polyacrylate/nanosilica concentrations, pleural effusion increased, as shown by ultrasonographic qualitative observations. Pulmonary fibrosis and granuloma were also observed in the high-dose polyacrylate/nanosilica group. Our study shows that polyacrylate/nanosilica results in specific toxicity presenting as pleural and pericardial effusion, as well as pulmonary fibrosis and granuloma, which are almost identical to results in reported patients. These results indicate the urgent need and importance of nanosafety and awareness of toxicity of polyacrylate/nanosilica.

  16. Polyacrylate/nanosilica causes pleural and pericardial effusion, and pulmonary fibrosis and granuloma in rats similar to those observed in exposed workers

    Science.gov (United States)

    Zhu, Xiaoli; Cao, Wen; Chang, Bing; Zhang, Linyuan; Qiao, Peihuan; Li, Xue; Si, Lifang; Niu, Yingmei; Song, Yuguo

    2016-01-01

    Nanomaterials offer great benefit as well as potential damage to humans. Workers exposed to polyacrylate coatings have pleural effusion, pericardial effusion, and pulmonary fibrosis and granuloma, which are thought to be related to the high exposure to nanomaterials in the coatings. The study aimed to determine whether polyacrylate/silica nanoparticles cause similar toxicity in rats, as observed in exposed workers. Ninety male Wistar rats were randomly divided into five groups with 18 rats in each group. The groups included the saline control group, another control group of polyacrylate only, and low-, intermediate-, and high-dose groups of polyacrylate/nanosilica with concentrations of 3.125, 6.25, and 12.5 mg/kg. Seventy-five rats for the 1-week study were terminated for scheduled necropsy at 24 hours, 3 days, and 7 days postintratracheal instillation. The remaining 15 rats (three males/group) had repeated ultrasound and chest computed tomography examinations in a 2-week study to observe the pleural and pericardial effusion and pulmonary toxicity. We found that polyacrylate/nanosilica resulted in pleural and pericardial effusions, where nanosilica was isolated and detected. Effusion occurred on day 3 and day 5 post-administration of nanocomposites in the 6.25 and 12.5 mg/kg groups, it gradually rose to a maximum on days 7–10 and then slowly decreased and disappeared on day 14. With an increase in polyacrylate/nanosilica concentrations, pleural effusion increased, as shown by ultrasonographic qualitative observations. Pulmonary fibrosis and granuloma were also observed in the high-dose polyacrylate/nanosilica group. Our study shows that polyacrylate/nanosilica results in specific toxicity presenting as pleural and pericardial effusion, as well as pulmonary fibrosis and granuloma, which are almost identical to results in reported patients. These results indicate the urgent need and importance of nanosafety and awareness of toxicity of polyacrylate

  17. Regulatory T cells with reduced repressor capacities are extensively amplified in pulmonary sarcoid lesions and sustain granuloma formation.

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    Rappl, Gunter; Pabst, Stefan; Riemann, Dagmar; Schmidt, Annette; Wickenhauser, Claudia; Schütte, Wolfgang; Hombach, Andreas A; Seliger, Barbara; Grohé, Christian; Abken, Hinrich

    2011-07-01

    Sarcoidosis can evolve into a chronic disease with persistent granulomas accompanied by progressive fibrosis. While an unlimited inflammatory response suggests an impaired immune control in sarcoid lesions, it stands in contrast to the massive infiltration with CD4(+)CD25(high)FoxP3(+) regulatory T cells. We here revealed that those Treg cells in affected lung lesions were mainly derived from activated natural Treg cells with GARP (LRRC32)-positive phenotype but exhibited reduced repressor capacities despite high IL-10 and TGF-beta 1 levels. The repressive capacity of blood Treg cells, in contrast, was not impaired compared to age-matched healthy donors. Treg derived cells in granuloma lesions have undergone extensive rounds of amplifications indicated by shortened telomeres compared to blood Treg cells of the same patient. Lesional Treg derived cells moreover secreted pro-inflammatory cytokines including IL-4 which sustains granuloma formation through fibroblast amplification and the activation of mast cells, the latter indicated by the expression of membrane-bound oncostatin M. Copyright © 2011 Elsevier Inc. All rights reserved.

  18. The first case of multiple pulmonary granulomas with amyloid deposition in a dental technician; a rare manifestation as an occupational lung disease.

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    Hirano, Taizou; Numakura, Tadahisa; Moriyama, Hiroshi; Saito, Ryoko; Shishikura, Yutaka; Shiihara, Jun; Sugiura, Hisatoshi; Ichinose, Masakazu

    2018-05-22

    Occupational lung diseases, such as pneumoconiosis, are one of the health problems of dental workers that have been receiving increasing interest. Pulmonary amyloidosis is a heterogenous group of diseases, and can be classified into primary (idiopathic) and secondary (associated with various inflammatory diseases, hereditary, or neoplastic). To date, the development of pulmonary amyloidosis in dental workers has not been reported. A 58-year-old Japanese female presented with chest discomfort and low-grade fever that has persisted for 2 months. She was a dental technician but did not regularly wear a dust mask in the workplace. Chest X ray and computed tomography revealed multiple well-defined nodules in both lungs and fluorodeoxyglucose (FDG)-positron emission tomography revealed abnormal FDG uptake in the same lesions with a maximal standardized uptake value (SUV [max]) of 5.6. We next performed thoracoscopic partial resection of the lesions in the right upper and middle lobes. The histological examination of the specimens revealed granuloma formation with foreign body-type giant cells and amyloid deposition that was confirmed by Congo red staining and direct fast scarlet (DFS) staining that produce apple-green birefringence under crossed polarized light. Because there were no other causes underlying the pulmonary amyloidosis, we performed electron probe X-ray microanalysis (EPMA) of the specimens and the result showed silica deposition in the lesions. Based on these results, we finally diagnosed the patient with pulmonary granulomas with amyloid deposition caused by chronic silica exposure. Afterward, her symptoms were improved and the disease has not progressed for 2 years since proper measures against additional occupational exposure were implemented. Our case presented three important clinical insights: First, occupational exposure to silica in a dental workplace could be associated with the development of amyloid deposition in lung. Second, EPMA was useful to

  19. Swimming pool granuloma

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    ... this page: //medlineplus.gov/ency/article/001357.htm Swimming pool granuloma To use the sharing features on this page, please enable JavaScript. A swimming pool granuloma is a long-term (chronic) skin ...

  20. Necrobiotic granuloma: An update

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    Achyut Pokharel

    2018-01-01

    Full Text Available Granulomatous disorders comprise a large family sharing the common histological denominator of granuloma formation. Collagenolytic or necrobiotic granuloma is one in which a granulomatous infiltrate develops around a central area of altered collagen and elastic fibers. The altered fibers exhibit new staining patterns, becoming either more basophilic which gives blue appearance (“blue granuloma” or eosinophilic giving red appearance (“red granuloma”. Conditions which exhibit blue granuloma include granuloma annulare, Wegener's granulomatosis, and rheumatoid vasculitis, whereas red granulomas include necrobiosis lipoidica, necrobiosis xanthogranuloma, rheumatoid nodules, Churg-Strauss syndrome, and eosinophilic cellulitis (Well's syndrome.

  1. Insights into the pathogenesis and clinicopathological spectrum of oral vegetable granuloma. Case series with literature review

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    Shankargouda Patil

    2017-10-01

    Full Text Available Oral vegetable granuloma represents an inflammatory lesion of foreign body origin resulting from the implantation of vegetable matter. Controversy regarding its pathogenesis is reflected by the various terminologies used to describe the lesion. Its diverse clinical presentations are due to variations in the antigenic potential of the vegetable material and the host response. As the diagnosis is solely histopathological, it is critical to differentiate vegetable granuloma from other oral granulomatous lesions like tuberculosis, sarcoidosis and Wegner’s granulomatosis. Here, we report six cases with the varied clinicopathological presentation of hyaline ring granulomas in association with different pathological lesions.

  2. Fusarium and other opportunistic hyaline fungi

    Science.gov (United States)

    This chapter focuses on those fungi that grow in tissue in the form of hyaline or lightly colored septate hyphae. These fungi include Fusarium and other hyaline fungi. Disease caused by hyaline fungi is referred to as hyalohyphomycosis. Hyaline fungi described in this chapter include the anamorphic,...

  3. Subcutaneous granuloma annulare

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    Dhar Sandipan

    1994-01-01

    Full Text Available Two cases of subcutaneos granuloma annulare are reported. Clinical presentation was in the form of hard subcutaneous nodules; histopathology confirmed the clinical diagnosis. The cases were unique because of onset in adult hood, occurrence over unusual sites and absence of classical lesions of granuloma annulare elsewhere.

  4. Subcutaneous granuloma annulare

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    Dhar Sandipan

    1993-01-01

    Full Text Available Two cases of subcutaneous granuloma annulare are reported. Clinical presentation was in the form of hard subcutaneous nodules, histopathology confirmed the clinical diagnosis. The cases were unique because of onset in adult age, occurrence over unusual sites and absence of classical lesions of granuloma annulare elsewhere.

  5. Familial Granuloma Annulare

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    Zennure Takci

    2015-09-01

    Full Text Available Granuloma annulare is a benign, asymptomatic, relatively common, often self-limited chronic granulomatos disorder of the skin that can affect both children and adults. The primary skin lesion usually is grouped papules in an enlarging annular shape, with color ranging from flesh-colored to erythematous. The two most common types of granuloma annulare are localized, which typically is found on the lateral or dorsal surfaces of the hands and feet; and disseminated, which is widespread. Rarely, familial cases of granuloma annulare has been reported. Herein, we report two sisters with annular papules and plaques diagnosed as granuloma annulare with the clinical and pathological findings. [J Contemp Med 2015; 5(3.000: 189-191

  6. Immunostimulatory mouse granuloma protein.

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    Fontan, E; Fauve, R M; Hevin, B; Jusforgues, H

    1983-10-01

    Earlier studies have shown that from subcutaneous talc-induced granuloma in mice, a fraction could be extracted that fully protected mice against Listeria monocytogenes. Using standard biochemical procedures--i.e., ammonium sulfate fractionation, preparative electrophoresis, gel filtration chromatography, isoelectric focusing, and preparative polyacrylamide gel electrophoresis--we have now purified an active factor to homogeneity. A single band was obtained in NaDodSO4/polyacrylamide gel with an apparent Mr of 55,000. It migrated with alpha 1-globulins and the isoelectric point was 5 +/- 0.1. The biological activity was destroyed with Pronase but not with trypsin and a monospecific polyclonal rabbit antiserum was obtained. The intravenous injection of 5 micrograms of this "mouse granuloma protein" fully protects mice against a lethal inoculum of L. monocytogenes. Moreover, after their incubation with 10 nM mouse granuloma protein, mouse peritoneal cells became cytostatic against Lewis carcinoma cells.

  7. Gingival plasma cell granuloma

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    Amitkumar B Pandav

    2012-01-01

    Full Text Available Plasma cell granuloma, also known as inflammatory pseudotumor is a tumor-like lesion that manifests primarily in the lungs. But it may occur in various other anatomic locations like orbit, head and neck, liver and rarely in the oral cavity. We here report an exceedingly rare case of gingival plasma cell granuloma in a 58 year old woman who presented with upper gingival polypoidal growth. The histopathological examination revealed a mass composed of proliferation of benign spindle mesenchymal cells in a loose myxoid and fibrocollagenous stroma along with dense infiltrate of chronic inflammatory cells predominantly containing plasma cells. Immunohistochemistry for kappa and lambda light chains showed a polyclonal staining pattern confirming a diagnosis of plasma cell granuloma.

  8. [Multicentric hyaline vascular Castleman's disease. A POEMS type variant].

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    Gracia-Ramos, Abraham Edgar; Cruz-Domínguez, María del Pilar; Vera-Lastra, Olga Lidia

    2013-01-01

    Castleman's disease is an atypical lymphoproliferative disorder which may be compatible with paraneoplastic manifestations of POEMS syndrome. a 53 year old man with a history of type 2 diabetes, hypothyroidism and Addison's disease presented with numbness and weakness in limbs, dyspnea, skin hardening, Raynaud's phenomenon, weight loss and fatigue. A physical exam showed tachypnea, generalized cutaneous hyperpigmentation and skin hardening of extremities, muscle weakness, hypoesthesia and hyporeflexia. Laboratory showed hyperprolactinemia, low testosterone, hypothyroidism and Addison's disease. Electrophoresis of proteins showed polyclonal hypergammaglobulinemia. Somatosensory evoked potentials reported peripheral neuropathy and severe axonal polyneuropathy by electromyography. Chest X-rays showed bilateral reticular infiltrates and mediastinal widening. An echocardiogram displayed moderate pulmonary hypertension. Skin biopsy had no evidence of scleroderma. CT reported axillar, mediastinal and retroperitoneal nodes. The mediastinal lesion biopsy reported hyaline vascular Castleman's disease, multicentric variety. He was treated with rituximab. the case meet criteria for multicentric hyaline vascular Castleman's disease, POEMS variant, treated with rituximab.

  9. Immunostimulatory mouse granuloma protein.

    OpenAIRE

    Fontan, E; Fauve, R M; Hevin, B; Jusforgues, H

    1983-01-01

    Earlier studies have shown that from subcutaneous talc-induced granuloma in mice, a fraction could be extracted that fully protected mice against Listeria monocytogenes. Using standard biochemical procedures--i.e., ammonium sulfate fractionation, preparative electrophoresis, gel filtration chromatography, isoelectric focusing, and preparative polyacrylamide gel electrophoresis--we have now purified an active factor to homogeneity. A single band was obtained in NaDodSO4/polyacrylamide gel with...

  10. Cutaneous mercury granuloma

    OpenAIRE

    Kalpana A Bothale; Sadhana D Mahore; Sushil Pande; Trupti Dongre

    2013-01-01

    Cutaneous mercury granuloma is rarely encountered. Clinically it may pose difficulty in diagnosis. Here, we report a 23-year-old male presented with erythematous, nodular lesions over the forearm and anterior aspect of chest wall. Metallic mercury in tissue sections appear as dark black, opaque, spherical globules of varying size and number. They are surrounded by granulomatous foreign-body reaction. It is composed of foreign body giant cells and mixed inflammatory infiltrate composed of hist...

  11. Juvenile hyaline fibromatosis. Radiological diagnosis

    International Nuclear Information System (INIS)

    Fuentes, R.; Sar, V.; Cabrera, J.J.; Diaz, L.; Hernandez, B.; Valeron, P.; Baez, O.; Rodriguez, M.

    1993-01-01

    Juvenile hyaline fibromatosis (JHF) is a rare disorder of unknown etiology, very few cases of which have been reported in the literature. It presents similarities to other fibromatosys, but has its particular radiological features which differentiate it from them. The clinical findings consist of several, slow growing, subcutaneous nodules, flexion contractures of the joints which can lead to disability, gingival hypertrophy and muscular atrophy. The suspected radiological diagnosis is confirmed by electron microscopy study of the nodules, although light microscopy can also reveal suggestive images. Author (9 refs.)

  12. Thorium-dioxide granuloma

    International Nuclear Information System (INIS)

    Terao, Akira; Kobayashi, Takeo; Ushijima, Tatsujiro; Yoshioka, Hirohide; Kogure, Takashi

    1979-01-01

    A case of Vernet's syndrome due to thoriumdioxide (Thorotrast) granuloma of the neck was presented. A patient, 65-year-old male, had a history of a machinegun wound in the head since 1939 during World War II. For the purpose of cerebral angiography, Thorotrast was injected into the carotid artery on the right side in 1940. In 1960, hoarseness, difficulty swallowing and hypersalivation appeared. Physical examination revealed diffuse firm atrophy of the right neck muscles, the paralyzed right vocal cord and hemiglossoplegia. The soft palate was immobilized on the same side. An x-ray film of the neck demonstrated an irregular density extending from the base of the skull to the right clavicle. These findings suggested the accidental extravasation of Thorotrast at the time of carotid angiography. (author)

  13. Plasma cell granuloma of lip

    Directory of Open Access Journals (Sweden)

    B Sabarinath

    2012-01-01

    Full Text Available Plasma cells are medium-sized round-to-oval cells with eccentrically placed nuclei, usually found in the red pulp of the spleen, tonsils, medulla of the lymph nodes, nasal mucosa, upper airway, lamina propria of the gastrointestinal tract, and sites of inflammation. Plasma cell granuloma is a rare reactive tumor-like proliferation composed chiefly of plasmacytic infiltrate. Here, we present a case of plasma cell granuloma of lip in a female patient.

  14. Immunoglobulins and C3 in the P. brasiliensis granuloma

    Directory of Open Access Journals (Sweden)

    Lilian M. V. Biagioni

    1987-04-01

    Full Text Available The experimental model of paracoccidioidomycosis induced in mice by the intravenous injection of yeast-forms of P. brasiliensis (Bt2 strain; 1 x 10(6 viable fungi/animal was used to evaluate sequentially 2, 4, 8, 16 and 20 weeks after inoculation: 1. The presence of immunoglobulins and C3 in the pulmonary granuloma-ta, by direct immunofluorescence; 2. The humoral (immunodiffusion test and the cellular (footpad sweeling test immune response; 3. The histopathology of lesions. The cell-immune response was positive since week 2, showing a transitory depression at week 16. Specific antibodies were first detected at week 4 and peaked at week 16. At histology, epithelioid granulomas with numerous fungi and polymorphonuclear agreggates were seen. The lungs showed progressive involvement up to week 16, with little decrease at week 20. From week 2 on, there were deposits of IgG and C3 around fungal walls within the granulomas and IgG stained cells among the mononuclear cell peripheral halo. Interstitital immunoglobulins and C3 deposits in the granulomas were not letected. IgG and C3 seen to play an early an important role in. the host defenses against P. brasiliensis by possibly cooperating in the killing of parasites and blocking the antigenic diffusion.

  15. Histochemical and polarization microscopic study of two cases of vegetable/pulse granuloma

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    Manjunatha B

    2008-01-01

    Full Text Available Vegetable granuloma (VG or pulse granuloma (PG results from the implantation of food particles of plant or vegetable origin. It is usually seen in the periapical or in the sulcus areas. These lesions have been described as a distinct entity and classified into central and peripheral lesions according to the location. Central lesions are asymptomatic, whereas peripheral lesions present as painless sub-mucosal swellings. Many authors have postulated that food particles in VG or PG get implanted and are rapidly digested, and sometimes partly get altered by host responses. The cellulose part of plant foods being indigestible persists in the form of hyaline material, whereas the starch matter gets digested. This cellulose moiety invokes chronic granulomatous response.

  16. Chancroid and granuloma inguinale.

    Science.gov (United States)

    Schwarz, R H

    1983-03-01

    Chancroid, also known as soft chancre, is seen infrequently and is manifested locally rather than systemically. The causative organism, Hemophilus ducreyi, is a short nonmotile bacillus, non-acid-fast, and usually gram-negative. Culture of the organism is difficult because contamination by other organisms inhibits the growth of H. ducreyi. Chancroid is relatively rare in the US but is more common in developing countries. It is a disease of the sexually promiscuous and is associated with poor hygiene. The lesions are usually obvious in the male but may be undetected in women. The incubation period is 3-5 days and the typical lesion is a soft nonindurated ulcer with a dirty exudate at the base, which is painful and exquisitely tender to palpation. Bubo formation is common and about half suppurate. Diagnosis depends on differentiation from other genital ulcers. The characteristics of the lesions and the nature of lymph node involvement are diagnostic features; smears and cultures are also involved but the organism may be difficult to isolate and the diagnosis must often be established on clinical grounds alone. In many instances no specific therapy other than cleansing with soap and water may be required. The sulfonamides, tetracycline, or a combination may be utilized. Prevention is usually a function of hygiene; condoms offer good protection. Granuloma inguinale, a disease of tropical and subtropical countries, is caused by the gram-negative, pleomorphic and microaerophilic bacterium Calymmatobacterium granulomatis. The mode of transmission is probably sexual but sexual transmission has been questioned on the basis that the disease is not very contagious. It is likely that a break in the skin or mucosa is necessary for the disease to become established. Lesions occur a few days to 3 months after inoculation in the form of 1 or more indurated papules which gradually break down to form ulcers. The ulceration may spread to the entire genitocrural area if untreated, but

  17. Sarcoid granuloma of the choroid.

    Science.gov (United States)

    Marcus, D F; Bovino, J A; Burton, T C

    1982-12-01

    Two patients were found to have macular choroidal granulomas associated with systemic sarcoidosis. This unusual fundus picture was documented by serial fundus photography and fluorescein angiography. Both patients had a similar clinical picture of decreased vision, chorioretinal granulomas, and overlying neurosensory detachments. Staining of the inflammatory mass with fluorescein and leakage of dye into the neurosensory space was typical. Lymph node biopsies were performed to substantiate the diagnosis. Both patients responded promptly to systemic corticosteroid therapy with dramatic improvement in visual acuity and resolution of the choroidal lesions.

  18. Subcutaneous granuloma annulare: radiologic appearance

    International Nuclear Information System (INIS)

    Kransdorf, M.J.; Murphey, M.D.; Temple, H.T.

    1998-01-01

    Objective. Granuloma annulare is an uncommon benign inflammatory dermatosis characterized by the formation of dermal papules with a tendency to form rings. There are several clinically distinct forms. The subcutaneous form is the most frequently encountered by radiologists, with the lesion presenting as a superficial mass. There are only a few scattered reports of the imaging appearance of this entity in the literature. We report the radiologic appearance of five cases of subcutaneous granuloma annulare. Design and patients. The radiologic images of five patients (three male, two female) with subcutaneous granuloma annulare were retrospectively studied. Mean patient age was 6.4 years (range, 2-13 years). The lesions occurred in the lower leg (two), foot, forearm, and hand. MR images were available for all lesions, gadolinium-enhanced imaging in three cases, radiographs in four, and bone scintigraphy in one. Results. Radiographs showed unmineralized nodular masses localized to the subcutaneous adipose tissue. The size range, in greatest dimension on imaging studies, was 1-4 cm. MR images show a mass with relatively decreased signal intensity on all pulse sequences, with variable but generally relatively well defined margins. There was extensive diffuse enhancement following gadolinium administration. Conclusion. The radiologic appearance of subcutaneous granuloma annulare is characteristic, typically demonstrating a nodular soft-tissue mass involving the subcutaneous adipose tissue. MR images show a mass with relatively decreased signal intensity on all pulse sequences and variable but generally well defined margins. There is extensive diffuse enhancement following gadolinium administration. Radiographs show a soft-tissue mass or soft-tissue swelling without evidence of bone involvement or mineralization. This radiologic appearance in a young individual is highly suggestive of subcutaneous granuloma annulare. (orig.)

  19. Deleted in Malignant Brain Tumors 1 (DMBT1 is present in hyaline membranes and modulates surface tension of surfactant

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    Griese Matthias

    2007-10-01

    Full Text Available Abstract Background Deleted in Malignant Brain Tumors 1 (DMBT1 is a secreted scavenger receptor cysteine-rich protein that binds various bacteria and is thought to participate in innate pulmonary host defense. We hypothesized that pulmonary DMBT1 could contribute to respiratory distress syndrome in neonates by modulating surfactant function. Methods DMBT1 expression was studied by immunohistochemistry and mRNA in situ hybridization in post-mortem lungs of preterm and full-term neonates with pulmonary hyaline membranes. The effect of human recombinant DMBT1 on the function of bovine and porcine surfactant was measured by a capillary surfactometer. DMBT1-levels in tracheal aspirates of ventilated preterm and term infants were determined by ELISA. Results Pulmonary DMBT1 was localized in hyaline membranes during respiratory distress syndrome. In vitro addition of human recombinant DMBT1 to the surfactants increased surface tension in a dose-dependent manner. The DMBT1-mediated effect was reverted by the addition of calcium depending on the surfactant preparation. Conclusion Our data showed pulmonary DMBT1 expression in hyaline membranes during respiratory distress syndrome and demonstrated that DMBT1 increases lung surface tension in vitro. This raises the possibility that DMBT1 could antagonize surfactant supplementation in respiratory distress syndrome and could represent a candidate target molecule for therapeutic intervention in neonatal lung disease.

  20. Recurrence of sarcoid granulomas in lung transplant recipients is common and does not affect overall survival

    DEFF Research Database (Denmark)

    Schultz, Hans Henrik Lawaetz; Andersen, Claus Bøgelund; Steinbrüchel, D

    2014-01-01

    Background: Sarcoidosis represents 2,5% of all indications for lung transplantation and criteria are generally assumed to be the same as for pulmonary fibrosis. Recurrence of granulomas in transplanted lungs has earlier been proved to derive from recipient immune cells, but its role in relation t...

  1. MR findings of eosinophilic granuloma

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    Choi, Jong O; Yee, Mi Kyeung; Cho, Kil Ho [Yeungnam Univ. College of Medicine, Kyongsan (Korea, Republic of); Lee, Sung Moon [Keimyung Univ. College of Medicine, Taegu (Korea, Republic of); Lee, Young Hwan [Hyosung Catholic Univ. College of Medicine, Taegu (Korea, Republic of); Suh, Kyung Jin [Suhjoo MR Clinic, Taegu (Korea, Republic of)

    1999-06-01

    To describe the MR findings for the three phases of eosinophilic granuloma, as defined by Mirra's conventional radiographic criteria. Eighteen lesions in 14 patients with proven eosinophilic granuloma were retrospectively analyzed. Among this total, three vertebral lesions were excluded, and the remaining is were classified as early, middle, or late phase on the basis of Mirra's radiographic criteria. For each phase, we compared MR findings with regard to signal intensity, homogeneity, contrast enhancement, perilesional marrow edema, and soft tissue change. For the three vertebral lesions excluded because the application of radiographic criteria was difficult, MR findings for paravertebral soft tissue reaction and degree of cord compression were compared. Of the fifteen cases classified, eight were early phase, five were mid phase, and two were late phase. During each phase, all lesions except one, as seen on T1-weighted images(T1WI), showed iso-signal intensity. On T2WI, all lesions showed high signal intensity. Contrast study demonstrated marked contrast enhancement. Thus, no remarkable differences were found in the signal intensity degree of contrast enhancement of each phase. With regard to heterogeneity, this was demonstrated in most early phase lesions, reflecting necrosis and hemorrhage of those lesions. Soft tissue swelling was more severe during the early phase than the mid or late phase, but marrow edema was similar in each of the three phase. One of three patients with vertebraplana showed para-vertebral soft tissue swelling and cord compression, but this was not seen in the two other cases. For evalvating the extent of eosinophilic granuloma and its relationship with surrounding structures, MRI was superior to conventional radiography. During the early phase of the disease, lesions showed greater inhomogeneity and more aggressive soft tissue reaction than during the mid and late phase.The use of MRI for the evalvation of eosinophilic granuloma

  2. Experiences in therapy for lethal midline granuloma

    International Nuclear Information System (INIS)

    Tosaka, Kaoru; Ishikawa, Takeru

    1982-01-01

    Four cases of the lethal midline granuloma or malignant granuloma of the nose were treated by irradiation and chemotherapy, which are generally prescribed for malignant lymphomas. Clinical, histological and laboratory examination indicated that they were the lethal midline granuloma and clearly differentiated from Wegener's granulomatosis or malignant lymphoma. All of the cases exhibited primary remission. The four cases were observed up to 38, 22, 14, and 10 months since the beginning of the therapy, showing no local or general recurrence. (author)

  3. Barium granuloma of the rectum: case report

    International Nuclear Information System (INIS)

    Kim, Dae Jin; Kim, Se Hyung; Jeoung, Ah Young; Lee, Kyoung Ho; Choi, Byung Ihn; Han, Joon Koo

    2003-01-01

    Barium granulomas usually occur after barium enema within 8 cm of the anal verge probably due to minute laceration of rectal wall by enema tip and extravasation of barium during barium enema. We report a case of barium granuloma of rectum in a 47-year-old man, who did not have history of barium enema. In rare instance, barium granuloma can occur without a history of barium enema and careful interpretation of radiologic image is essential to make a correct diagnosis

  4. Induction of ER stress in macrophages of tuberculosis granulomas.

    Directory of Open Access Journals (Sweden)

    Tracie A Seimon

    2010-09-01

    Full Text Available The endoplasmic reticulum (ER stress pathway known as the Unfolded Protein Response (UPR is an adaptive survival pathway that protects cells from the buildup of misfolded proteins, but under certain circumstances it can lead to apoptosis. ER stress has been causally associated with macrophage apoptosis in advanced atherosclerosis of mice and humans. Because atherosclerosis shares certain features with tuberculosis (TB with regard to lesional macrophage accumulation, foam cell formation, and apoptosis, we investigated if the ER stress pathway is activated during TB infection.Here we show that ER stress markers such as C/EBP homologous protein (CHOP; also known as GADD153, phosphorylated inositol-requiring enzyme 1 alpha (Ire1α and eukaryotic initiation factor 2 alpha (eIF2α, and activating transcription factor 3 (ATF3 are expressed in macrophage-rich areas of granulomas in lungs of mice infected with virulent Mycobacterium tuberculosis (Mtb. These areas were also positive for numerous apoptotic cells as assayed by TUNEL. Microarray analysis of human caseous TB granulomas isolated by laser capture microdissection reveal that 73% of genes involved in the UPR are upregulated at the mRNA transcript level. The expression of two ER stress markers, ATF3 and CHOP, were also increased in macrophages of human TB granulomas when assayed by immunohistochemistry. CHOP has been causally associated with ER stress-induced macrophage apoptosis. We found that apoptosis was more abundant in granulomas as compared to non-granulomatous tissue isolated from patients with pulmonary TB, and apoptosis correlated with CHOP expression in areas surrounding the centralized areas of caseation.In summary, ER stress is induced in macrophages of TB granulomas in areas where apoptotic cells accumulate in mice and humans. Although macrophage apoptosis is generally thought to be beneficial in initially protecting the host from Mtb infection, death of infected macrophages in

  5. [Venereal granuloma (donovaniasis) in France].

    Science.gov (United States)

    Duperrat, B; Labouche, F

    1975-01-01

    The study of six cases of MacLeod-Donovan chancre, 2 in Paris, 4 in Brest, in young men coming from the West Indies, showed after 15 days incubation, a balano-preputial lesion consisting of an oval-shaped granuloma, 1 to 4 cm diameter, raised, indurated, ulcerated, reddish-yellow, spontaneously painful, bleeding easily, accompanied in 50 p. 100 of cases by inguinal adenitis, due to secondary infection. Swabs, which should be repeated, showed Donovan bodies within numerous histiocytes. The inactivity of penicillin may be contrasted with the rapidly favourable effect of streptomycin, chloramphenicol or aureomycin.

  6. Osseous eosinophilic granuloma in children

    International Nuclear Information System (INIS)

    Leblan, I.; Gaucher, H.; Marinard, L.; Galloy, M.A.; Phi, I.N.; Hoeffel, J.C.

    2001-01-01

    Eosinophilic granuloma of bone or Langerhans cell histiocytosis is mostly uni-focal. It appears on plain X Ray as a solitary destructive lesion of long bones or flat bones. CT is useful to define the extension to the cortical bone and also to precisely localize the lesion when the anatomy is complex (hip, spine, base of the skull). MR is very useful in case of more aggressive lesions when there is extension to soft tissues. Differential diagnosis includes circumscribed osteitis and tumors prognosis is more serious in case of multiple lesions. (authors)

  7. Mathematical Modeling of Tuberculosis Granuloma Activation

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    Steve M. Ruggiero

    2017-12-01

    Full Text Available Tuberculosis (TB is one of the most common infectious diseases worldwide. It is estimated that one-third of the world’s population is infected with TB. Most have the latent stage of the disease that can later transition to active TB disease. TB is spread by aerosol droplets containing Mycobacterium tuberculosis (Mtb. Mtb bacteria enter through the respiratory system and are attacked by the immune system in the lungs. The bacteria are clustered and contained by macrophages into cellular aggregates called granulomas. These granulomas can hold the bacteria dormant for long periods of time in latent TB. The bacteria can be perturbed from latency to active TB disease in a process called granuloma activation when the granulomas are compromised by other immune response events in a host, such as HIV, cancer, or aging. Dysregulation of matrix metalloproteinase 1 (MMP-1 has been recently implicated in granuloma activation through experimental studies, but the mechanism is not well understood. Animal and human studies currently cannot probe the dynamics of activation, so a computational model is developed to fill this gap. This dynamic mathematical model focuses specifically on the latent to active transition after the initial immune response has successfully formed a granuloma. Bacterial leakage from latent granulomas is successfully simulated in response to the MMP-1 dynamics under several scenarios for granuloma activation.

  8. Autologous chondrocyte implantation: superior biologic properties of hyaline cartilage repairs.

    Science.gov (United States)

    Henderson, Ian; Lavigne, Patrick; Valenzuela, Herminio; Oakes, Barry

    2007-02-01

    Information regarding the quality of autologous chondrocyte implantation repair is needed to determine whether the current autologous chondrocyte implantation surgical technology and the subsequent biologic repair processes are capable of reliably forming durable hyaline or hyaline-like cartilage in vivo. We report and analyze the properties and qualities of autologous chondrocyte implantation repairs. We evaluated 66 autologous chondrocyte implantation repairs in 57 patients, 55 of whom had histology, indentometry, and International Cartilage Repair Society repair scoring at reoperation for mechanical symptoms or pain. International Knee Documentation Committee scores were used to address clinical outcome. Maximum stiffness, normalized stiffness, and International Cartilage Repair Society repair scoring were higher for hyaline articular cartilage repairs compared with fibrocartilage, with no difference in clinical outcome. Reoperations revealed 32 macroscopically abnormal repairs (Group B) and 23 knees with normal-looking repairs in which symptoms leading to arthroscopy were accounted for by other joint disorders (Group A). In Group A, 65% of repairs were either hyaline or hyaline-like cartilage compared with 28% in Group B. Autologous chondrocyte repairs composed of fibrocartilage showed more morphologic abnormalities and became symptomatic earlier than hyaline or hyaline-like cartilage repairs. The hyaline articular cartilage repairs had biomechanical properties comparable to surrounding cartilage and superior to those associated with fibrocartilage repairs.

  9. Hyaline cartilage degenerates after autologous osteochondral transplantation.

    Science.gov (United States)

    Tibesku, C O; Szuwart, T; Kleffner, T O; Schlegel, P M; Jahn, U R; Van Aken, H; Fuchs, S

    2004-11-01

    Autologous osteochondral grafting is a well-established clinical procedure to treat focal cartilage defects in patients, although basic research on this topic remains sparse. The aim of the current study was to evaluate (1) histological changes of transplanted hyaline cartilage of osteochondral grafts and (2) the tissue that connects the transplanted cartilage with the adjacent cartilage in a sheep model. Both knee joints of four sheep were opened surgically and osteochondral grafts were harvested and simultaneously transplanted to the contralateral femoral condyle. The animals were sacrificed after three months and the received knee joints were evaluated histologically. Histological evaluation showed a complete ingrowth of the osseous part of the osteochondral grafts. A healing or ingrowth at the level of the cartilage could not be observed. Histological evaluation of the transplanted grafts according to Mankin revealed significantly more and more severe signs of degeneration than the adjacent cartilage, such as cloning of chondrocytes and irregularities of the articular surface. We found no connecting tissue between the transplanted and the adjacent cartilage and histological signs of degeneration of the transplanted hyaline cartilage. In the light of these findings, long-term results of autologous osteochondral grafts in human beings have to be followed critically.

  10. Interleukin-17 limits hypoxia-inducible factor 1α and development of hypoxic granulomas during tuberculosis.

    Science.gov (United States)

    Domingo-Gonzalez, Racquel; Das, Shibali; Griffiths, Kristin L; Ahmed, Mushtaq; Bambouskova, Monika; Gopal, Radha; Gondi, Suhas; Muñoz-Torrico, Marcela; Salazar-Lezama, Miguel A; Cruz-Lagunas, Alfredo; Jiménez-Álvarez, Luis; Ramirez-Martinez, Gustavo; Espinosa-Soto, Ramón; Sultana, Tamanna; Lyons-Weiler, James; Reinhart, Todd A; Arcos, Jesus; de la Luz Garcia-Hernandez, Maria; Mastrangelo, Michael A; Al-Hammadi, Noor; Townsend, Reid; Balada-Llasat, Joan-Miquel; Torrelles, Jordi B; Kaplan, Gilla; Horne, William; Kolls, Jay K; Artyomov, Maxim N; Rangel-Moreno, Javier; Zúñiga, Joaquín; Khader, Shabaana A

    2017-10-05

    Mycobacterium tuberculosis (Mtb) is a global health threat, compounded by the emergence of drug-resistant strains. A hallmark of pulmonary tuberculosis (TB) is the formation of hypoxic necrotic granulomas, which upon disintegration, release infectious Mtb. Furthermore, hypoxic necrotic granulomas are associated with increased disease severity and provide a niche for drug-resistant Mtb. However, the host immune responses that promote the development of hypoxic TB granulomas are not well described. Using a necrotic Mtb mouse model, we show that loss of Mtb virulence factors, such as phenolic glycolipids, decreases the production of the proinflammatory cytokine IL-17 (also referred to as IL-17A). IL-17 production negatively regulates the development of hypoxic TB granulomas by limiting the expression of the transcription factor hypoxia-inducible factor 1α (HIF1α). In human TB patients, HIF1α mRNA expression is increased. Through genotyping and association analyses in human samples, we identified a link between the single nucleotide polymorphism rs2275913 in the IL-17 promoter (-197G/G), which is associated with decreased IL-17 production upon stimulation with Mtb cell wall. Together, our data highlight a potentially novel role for IL-17 in limiting the development of hypoxic necrotic granulomas and reducing disease severity in TB.

  11. Actinic Granuloma with Focal Segmental Glomerulosclerosis

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    Ruedee Phasukthaworn

    2016-02-01

    Full Text Available Actinic granuloma is an uncommon granulomatous disease, characterized by annular erythematous plaque with central clearing predominately located on sun-damaged skin. The pathogenesis is not well understood, ultraviolet radiation is recognized as precipitating factor. We report a case of a 52-year-old woman who presented with asymptomatic annular erythematous plaques on the forehead and both cheeks persisting for 2 years. The clinical presentation and histopathologic findings support the diagnosis of actinic granuloma. During that period of time, she also developed focal segmental glomerulosclerosis. The association between actinic granuloma and focal segmental glomerulosclerosis needs to be clarified by further studies.

  12. Post thyroidectomy suture granuloma: a cytological diagnosis.

    Science.gov (United States)

    Javalgi, Anita P; Arakeri, Surekha U

    2013-04-01

    There are known post thyroidectomized complications, a suture granuloma being less frequent, with its late complication mimicking recurrent thyroid cancer. A suture granuloma is a benign, granulomatous inflammatory reaction that occurs due to the use of non absorbable suture. It constitutes one of the late complications which altogether make up less than 2% of its incidence. A suture granuloma is similar to a foreign body reaction and it usually develops slowly as a painless, palpable asymptomatic mass over the years. It mimics a cancer recurrence or a lymph node metastasis. Here, we are reporting a case of a post thyroidectomy suture granuloma in a 46 years old lady who presented with a painless swelling in the lateral neck, with a past history of thyroidectomy 5 years back.

  13. Vulvar Lobular Capillary Hemangioma (Pyogenic Granuloma

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    Kian-Mei Chong

    2005-03-01

    Conclusion: Pyogenic granuloma is considered a reactive hyperproliferative vascular response to trauma or other stimuli. The name “pyogenic granuloma” is a misnomer since the condition is not associated with pus and does not represent a granuloma histologically. There are a few cases of lobular capillary hemangioma of the glans penis but it is rare on the female genitalia. We present this case to help physicians become aware that lobular capillary hemangiomas may occur at this site.

  14. Eosinophilic granuloma of the mandibular condyle

    International Nuclear Information System (INIS)

    Huh, Kyung Hoe; Yi, Won Jin; Oh, Sung Won; Lee, Sam Sun; Choi, Mun Kyung

    2008-01-01

    The present study reports a case of eosinophilic granuloma of the mandibular condyle. Eosinophilic granulomas on the mandibular condyle are very rare, but there are several common clinical and radiographic presentations. The clinical presentations involve swelling on preauricular area, limitation of opening, TMJ pain, etc. The radiographic presentations involve radiolucent lytic condylar lesion with or without pathologic fracture. Sometimes new bone formations are observed. The purpose of the article is to add new cases to the literatures.

  15. Eosinophilic granuloma of the mandibular condyle

    Energy Technology Data Exchange (ETDEWEB)

    Huh, Kyung Hoe; Yi, Won Jin; Oh, Sung Won; Lee, Sam Sun [Department of Oral and Maxillofacial Radiology, and Dental Research Institute, School of Dentistry, Seoul National University, Seoul (Korea, Republic of); Choi, Mun Kyung [Department of Oral and Maxillofacial Surgery, College of Medicine, Inje University Sanggye Paik Hospital, Seoul (Korea, Republic of)

    2008-03-15

    The present study reports a case of eosinophilic granuloma of the mandibular condyle. Eosinophilic granulomas on the mandibular condyle are very rare, but there are several common clinical and radiographic presentations. The clinical presentations involve swelling on preauricular area, limitation of opening, TMJ pain, etc. The radiographic presentations involve radiolucent lytic condylar lesion with or without pathologic fracture. Sometimes new bone formations are observed. The purpose of the article is to add new cases to the literatures.

  16. Pleomorphic Hyalinizing Angiectatic Tumor of Soft Parts

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    Hui-Chin Peng

    2010-08-01

    Full Text Available Pleomorphic hyalinizing angiectatic tumor (PHAT of soft parts is a rare, nonmetastasizing tumor of uncertain lineage which was first reported in 1996. Here, we report a case of PHAT and review the literature. A 49-year-old man presented with a soft and progressively enlarging mass over the right buttock for several years. On suspicion that the mass was a right gluteal lipoma, he underwent surgical excision. The excised lesion measured 14 × 6 × 3.5 cm. It had a variegated appearance with a white-tan to yellowish color on the cut surface. Some punctate hemorrhage and vessel thrombosis were seen. Microscopically, the tumor was a PHAT characterized by clusters of ectatic, fibrin-lined, thin-walled vessels, which were surrounded by a mitotically inert, spindled, pleomorphic, neoplastic stroma that contained a variable inflammatory component. Immunohistochemical study showed that the tumor cells were positive for CD34, and negative for S-100, HMB45 and actin. The patient experienced local recurrence 6 months later. The recurrent tumor was widely excised. No evidence of metastasis was found during the 18 months after the second operation. The recurrent lesion had a microscopic appearance that was similar to the initial lesion.

  17. Precision of hyaline cartilage thickness measurements

    Energy Technology Data Exchange (ETDEWEB)

    Jonsson, K.; Buckwalter, K.; Helvie, M.; Niklason, L.; Martel, W. (Univ. of Michigan Hospitals, Ann Arbor, MI (United States). Dept. of Radiology)

    1992-05-01

    Measurement of cartilage thickness in vivo is an important indicator of the status of a joint as the various degenerative and inflammatory arthritides directly affect the condition of the cartilage. In order to assess the precision of thickness measurements of hyaline articular cartilage, we undertook a pilot study using MR imaging, plain radiography, and ultrasonography (US). We measured the cartilage of the hip and knee joints in 10 persons (4 healthy volunteers and 6 patients). The joints in each patient were examined on two separate occasions using each modality. In the hips a swell as the knee joints, the most precise measuring method was plain film radiography. For radiographs of the knees obtained in the standing position, the coefficient of variation was 6.5%; in the hips this figure was 6.34%. US of the knees and MR imaging of the hips were the second best modalities in the measurement of cartilage thickness. In addition, MR imaging enabled the most complete visualization of the joint cartilage. (orig.).

  18. The granuloma in tuberculosis: Dynamics of a host-pathogen collusion

    Directory of Open Access Journals (Sweden)

    Stefan eEhlers

    2013-01-01

    Full Text Available A granuloma is defined as an inflammatory mononuclear cell infiltrate that, while capable of limiting growth of Mycobacterium tuberculosis, also provides a survival niche from which the bacteria may disseminate. The tuberculosis lesion is highly dynamic and shaped by both, immune response elements and the pathogen. In the granuloma, M. tuberculosis switches to a non-replicating but energy-generating life style whose detailed molecular characterization can identify novel targets for chemotherapy. To secure transmission to a new host, M. tuberculosis has evolved to drive T cell immunity to the point that necrotizing granulomas leak into bronchial cavities to facilitate expectoration of bacilli. From an evolutionary perspective it is therefore questionable whether vaccination and immunity enhancing strategies that merely mimic the natural immune response directed against M. tuberculosis infection can overcome pulmonary tuberculosis in the adult population. Juxtaposition of molecular pathology and immunology with microbial physiology and the use of novel imaging approaches afford an integrative view of the granuloma’s contribution to the life cycle of M. tuberculosis. This review revisits the different input of innate and adaptive immunity in granuloma biogenesis, with a focus on the co-evolutionary forces that redirect immune responses also to the benefit of the pathogen, i.e. its survival, propagation and transmission.

  19. A TNF-Regulated Recombinatorial Macrophage Immune Receptor Implicated in Granuloma Formation in Tuberculosis

    Science.gov (United States)

    Streich, Roswita; Breysach, Caroline; Raddatz, Dirk; Oniga, Septimia; Peccerella, Teresa; Findeisen, Peter; Kzhyshkowska, Julia; Gratchev, Alexei; Schweyer, Stefan; Saunders, Bernadette; Wessels, Johannes T.; Möbius, Wiebke; Keane, Joseph; Becker, Heinz; Ganser, Arnold; Neumaier, Michael; Kaminski, Wolfgang E.

    2011-01-01

    Macrophages play a central role in host defense against mycobacterial infection and anti- TNF therapy is associated with granuloma disorganization and reactivation of tuberculosis in humans. Here, we provide evidence for the presence of a T cell receptor (TCR) αβ based recombinatorial immune receptor in subpopulations of human and mouse monocytes and macrophages. In vitro, we find that the macrophage-TCRαβ induces the release of CCL2 and modulates phagocytosis. TNF blockade suppresses macrophage-TCRαβ expression. Infection of macrophages from healthy individuals with mycobacteria triggers formation of clusters that express restricted TCR Vβ repertoires. In vivo, TCRαβ bearing macrophages abundantly accumulate at the inner host-pathogen contact zone of caseous granulomas from patients with lung tuberculosis. In chimeric mouse models, deletion of the variable macrophage-TCRαβ or TNF is associated with structurally compromised granulomas of pulmonary tuberculosis even in the presence of intact T cells. These results uncover a TNF-regulated recombinatorial immune receptor in monocytes/macrophages and demonstrate its implication in granuloma formation in tuberculosis. PMID:22114556

  20. A TNF-regulated recombinatorial macrophage immune receptor implicated in granuloma formation in tuberculosis.

    Directory of Open Access Journals (Sweden)

    Alexander W Beham

    2011-11-01

    Full Text Available Macrophages play a central role in host defense against mycobacterial infection and anti- TNF therapy is associated with granuloma disorganization and reactivation of tuberculosis in humans. Here, we provide evidence for the presence of a T cell receptor (TCR αβ based recombinatorial immune receptor in subpopulations of human and mouse monocytes and macrophages. In vitro, we find that the macrophage-TCRαβ induces the release of CCL2 and modulates phagocytosis. TNF blockade suppresses macrophage-TCRαβ expression. Infection of macrophages from healthy individuals with mycobacteria triggers formation of clusters that express restricted TCR Vβ repertoires. In vivo, TCRαβ bearing macrophages abundantly accumulate at the inner host-pathogen contact zone of caseous granulomas from patients with lung tuberculosis. In chimeric mouse models, deletion of the variable macrophage-TCRαβ or TNF is associated with structurally compromised granulomas of pulmonary tuberculosis even in the presence of intact T cells. These results uncover a TNF-regulated recombinatorial immune receptor in monocytes/macrophages and demonstrate its implication in granuloma formation in tuberculosis.

  1. Granuloma Faciale Treatment: A Systematic Review

    Directory of Open Access Journals (Sweden)

    Claudia Lindhaus

    2017-10-01

    Full Text Available Granuloma faciale is an uncommon benign chronic dermatosis characterized by reddish-brown to violaceous asymptomatic plaques appearing predominantly on the face. The pathogenesis of granuloma faciale remains unclear, and it is frequently unresponsive to therapy. This systematic review aims to summarize all recent publications on the management of granuloma faciale. The publications are mainly individual case reports, small case series and a few retrospective studies. Treatment options included topical, intralesional and systemic corticosteroids, topical pimecrolimus and tacrolimus, topical and systemic dapsone, systemic hydroxychloroquine, clofazimine, and tumour necrosis factor-alpha inhibitors. More invasive therapies using lasers as well as cryosurgery and surgery were also reported. Topical glucocorticosteroids and tacrolimus remain treatments of first choice, possibly supplemented by topical dapsone.

  2. A Case of Angioleiomyoma with Epithelioid Granuloma

    Directory of Open Access Journals (Sweden)

    Masazumi Onishi

    2011-08-01

    Full Text Available We describe a 61-year-old Japanese woman who had been aware of a lesion on her left thigh for 10 years. Pathological examination demonstrated a well-circumscribed encapsulated nodule at the dermal-subcutaneous boundary, composed of eosinophilic spindle cell bundles, connective tissue, and numerous small vessels. Immunohistochemically, these eosinophilic cells were positive for α-smooth muscle actin. The granulomatous areas in the tumor were composed focally of epithelioid cells and lymphocytes. The epithelioid cells were negative for α-smooth muscle actin. We diagnosed this case as an angioleiomyoma with epithelioid granuloma. Malignant tumors with granulomatous change have sometimes been reported in the literature, but benign tumors with epithelioid granuloma, such as the present one, are rare. We thought that epithelioid cell granuloma might transform to angioleiomyoma through the action of IL-1 released from vascular smooth muscle cells.

  3. Tympanomastoid cholesterol granulomas: Immunohistochemical evaluation of angiogenesis.

    Science.gov (United States)

    Iannella, Giannicola; Di Gioia, Cira; Carletti, Raffaella; Magliulo, Giuseppe

    2017-08-01

    This study investigates the immunohistochemical expression of vascular endothelial growth factor (VEGF) and CD34 in patients treated for middle ear and mastoid cholesterol granulomas to evaluate the angiogenesis and vascularization of this type of lesion. A correlation between the immunohistochemical data and the radiological and intraoperative evidence of temporal bone marrow invasion and blood source connection was performed to validate this hypothesis. Retrospective study. Immunohistochemical expression of VEGF and CD34 in a group of 16 patients surgically treated for cholesterol granuloma was examined. Middle ear cholesteatomas with normal middle ear mucosa and external auditory canal skin were used as the control groups. The radiological and intraoperative features of cholesterol granulomas were also examined. In endothelial cells, there was an increased expression of angiogenetic growth factor receptors in all the cholesterol granulomas in this study. The quantitative analysis of VEGF showed a mean value of 37.5, whereas the CD34 quantitative analysis gave a mean value of 6.8. Seven patients presented radiological or intraoperative evidence of bone marrow invasion, hematopoietic potentialities, or blood source connections that might support the bleeding theory. In all of these cases there was computed tomography or intraoperative evidence of bone erosion of the middle ear and/or temporal bone structures. The mean values of VEGF and CD34 were 41.1 and 7.7, respectively. High values of VEGF and CD34 are present in patients with cholesterol granulomas. Upregulation of VEGF and CD34 is indicative of a remarkable angiogenesis and a widespread vascular concentration in cholesterol granulomas. 3b. Laryngoscope, 127:E283-E290, 2017. © 2017 The American Laryngological, Rhinological and Otological Society, Inc.

  4. Radiologic and histologic features of hyaline membrane diseases of the newbone

    International Nuclear Information System (INIS)

    Baek, Seung Yon; Choi, Kyung Hee; Suh, Jeong Soo; Rhee, Chung Sik; Kim, Hee Seup

    1984-01-01

    This study represents the radiologic, histologic features and clinical analysis of hyaline membrane diseases in 47 newbone infants who were delivered in Ewha Womans Univ. Hospital and expired caused by respiratory distress and confirmed by autopsy, during Jan. 1981 to June. 1984. The results were as follows: 1. Classification of radiographic stage (by Wolfson's criteria); Stage III (34.1%) was the most frequent. 2. Male to female ratio was 2.4 : 1. 3. Method of delivery; Cesarean section (44.7%) was the highest frequency, compared with percent of cesarean section to total delivery (29.0%) 4. Distribution of birth weight; 1.0-2.0 kg (48.9%) was the most frequent. 5. Distribution of gestational period; 32-36 weeks (29.8%) was the most frequent. 6. Complication; pulmonary hemorrhage (31.9%) was the most frequent, in order, subarachnoid hemorrhage and pneumothorax were followed. 7. Final diagnosis of hyaline membrane diseases was based on histo-pathologic diagnosis.

  5. Radiologic and histologic features of hyaline membrane diseases of the newbone

    Energy Technology Data Exchange (ETDEWEB)

    Baek, Seung Yon; Choi, Kyung Hee; Suh, Jeong Soo; Rhee, Chung Sik; Kim, Hee Seup [Ewha Womans University College of Medicine, Seoul (Korea, Republic of)

    1984-12-15

    This study represents the radiologic, histologic features and clinical analysis of hyaline membrane diseases in 47 newbone infants who were delivered in Ewha Womans Univ. Hospital and expired caused by respiratory distress and confirmed by autopsy, during Jan. 1981 to June. 1984. The results were as follows: 1. Classification of radiographic stage (by Wolfson's criteria); Stage III (34.1%) was the most frequent. 2. Male to female ratio was 2.4 : 1. 3. Method of delivery; Cesarean section (44.7%) was the highest frequency, compared with percent of cesarean section to total delivery (29.0%) 4. Distribution of birth weight; 1.0-2.0 kg (48.9%) was the most frequent. 5. Distribution of gestational period; 32-36 weeks (29.8%) was the most frequent. 6. Complication; pulmonary hemorrhage (31.9%) was the most frequent, in order, subarachnoid hemorrhage and pneumothorax were followed. 7. Final diagnosis of hyaline membrane diseases was based on histo-pathologic diagnosis.

  6. Postoperative Granulomas at Liposuction Incision Sites.

    Science.gov (United States)

    Weniger, Frederick G; White, Peter F; Barrero Castedo, Carlos E

    2016-02-01

    Since most liposuction incisions heal uneventfully, difficult healing in such incisions must be investigated. In the cases of two gynecomastia liposuction patients in which a water-based lubricating gel was used on the liposuction incisions, the incisions failed to heal. For both patients, workup uncovered palisading granulomas at the lateral inframammary fold incision sites several months after otherwise successful surgeries. These two cases are presented and the previous literature is reviewed, with consideration given to the etiology and prevention of such granulomas. LEVEL OF EVIDENCE 5: Risk. © 2015 The American Society for Aesthetic Plastic Surgery, Inc. Reprints and permission: journals.permissions@oup.com.

  7. Tinea granulomatosa de Majocchi Majocchi's granuloma

    Directory of Open Access Journals (Sweden)

    Aline Lopes Bressan

    2011-08-01

    Full Text Available Relata-se o caso de um homem de 45 anos com dermatofitose superficial de longa data, tratado, inadvertidamente, com corticoide e antibiótico, com progressão subsequente para a forma profunda, conhecida como granuloma de Majocchi. O tratamento com terbinafina VO foi curativoWe report the case of a man of 45 with superficial dermatophytosis longtime inadvertently treated with antibiotics and corticosteroids with subsequent progression to the deep form, known as granuloma Majocchi. Treatment with orally terbinafine was successful

  8. The Schistosoma Granuloma: Friend or Foe?

    Science.gov (United States)

    Hams, Emily; Aviello, Gabriella; Fallon, Padraic G.

    2013-01-01

    Infection of man with Schistosoma species of trematode parasite causes marked chronic morbidity. Individuals that become infected with Schistosomes may develop a spectrum of pathology ranging from mild cercarial dermatitis to severe tissue inflammation, in particular within the liver and intestines, which can lead to life threatening hepatosplenomegaly. It is well established that the etiopathology during schistosomiasis is primarily due to an excessive or unregulated inflammatory response to the parasite, in particular to eggs that become trapped in various tissue. The eggs forms the foci of a classical type 2 granulomatous inflammation, characterized by an eosinophil-rich, CD4+ T helper (Th) 2 cell dominated infiltrate with additional infiltration of alternatively activated macrophages (M2). Indeed the sequela of the type 2 perioval granuloma is marked fibroblast infiltration and development of fibrosis. Paradoxically, while the granuloma is the cause of pathology it also can afford some protection, whereby the granuloma minimizes collateral tissue damage in the liver and intestines. Furthermore, the parasite is exquisitely reliant on the host to mount a granulomatous reaction to the eggs as this inflammatory response facilitates the successful excretion of the eggs from the host. In this focused review we will address the conundrum of the S. mansoni granuloma acting as both friend and foe in inflammation during infection. PMID:23596444

  9. [A rare form of granuloma annulare].

    Science.gov (United States)

    Bogdanowski, T; Wygledowska-Kania, M

    1995-01-01

    We present a four-year-old girl with a doubly rare form of granuloma annulare with non-typical localisation of superficial nodules on the palms and predisposition to ulceration which is very rare in this type of superficial nodules. The diagnosis was proved by histological examination. After the local cryotherapy (ethyl chloride) the lesions almost completely disappeared.

  10. Granuloma Inguinale Simulating Squamous Cell Carcinoma

    Directory of Open Access Journals (Sweden)

    M Z Mani

    1981-01-01

    Full Text Available A case of extensive granuloma inguinale simulating squamous cell carcinoma is described. There was past history of urethritis leading to a urethral fistula. The ulcer healed almost completely within 19 days of receiving streptomycin injections. The patient had associated scabies and presumably also had latent syphillis (His VDRL was reactive in 1:8 dilution. The patient belonged to Madhya Pradesh.

  11. Pyogenic granuloma associated with mandibular odontoma.

    Directory of Open Access Journals (Sweden)

    Karla Ocampo

    2014-08-01

    Full Text Available Background: pyogenic granuloma is a kind of inflammatory hyperplasia of multifactorial origin, which is usually related to trauma or constant irritation, drug use, hormonal factors, among others. Meanwhile the odontoma is a benign tumor odontogenic composed of epithelial and mesenchymal cells, their development is usually associated with trauma, infections, inherited disorders or hyperactivity odontoblast. Objectives: The objective is to present the clinical case of a patient that presented a case of pyogenic granuloma related to the presence of a mandibular odontoma, and therapeutic management and postoperative results. Case report: The case shows a female patient of 32 years old with a history of multinodular goiter and hypothyroidism, developing a mandibular odontoma of the left side associated with pyogenic granuloma in the same area, which was treated with surgical excision and reconstructed affected tissues with lyophilized bone and collagen membrane. Favorable outcome after surgery without evidence of recurrence, with proper osseointegration of alloplastic materials and soft tissues. Conclusions: The irritant effect of the presence of a tumor (odontoma in developing confirmed pyogenic granuloma.

  12. Cellular Architecture of Spinal Granulomas and the Immunological Response in Tuberculosis Patients Coinfected with HIV.

    Science.gov (United States)

    Bhattacharya, Debapriya; Danaviah, Siva; Muema, Daniel M; Akilimali, Ngomu Akeem; Moodley, Prashini; Ndung'u, Thumbi; Das, Gobardhan

    2017-01-01

    Mycobacterium tuberculosis ( M.tb ) and HIV are individually responsible for the most deaths worldwide among all infectious agents, and coinfection with M.tb and HIV is a significant public health challenge in the developing world. Although the lung is the primary target organ for tuberculosis (TB), M.tb can also cause extrapulmonary tuberculosis (EPTB) such as in the bones and joints. Treatment of EPTB is much more challenging than treatment of pulmonary TB. The hallmark of the host immune response against TB is the formation of organized structures called granulomas that are infiltrated with immune cells and are rich in cytokines and chemokines. Inside granulomas, the host confines the M.tb bacteria to a particular region of the organ and avoids dispersion. In this study, we analyzed immune cells in bone granulomas of patients with EPTB that are also coinfected with HIV. We found that HIV-infected TB patients have dispersed bone granulomas, with reduced T cell numbers and a concomitant increase in plasma cells. Additionally, HIV-infected patients exhibited dramatically increased serum levels of IgM and IgG1 antibodies, which is indicative of T-cell-independent B-cell activation and mucosal T-cell activation, respectively. Interestingly, we also observed that CD29 + stem cells are increased in HIV-TB coinfection, suggesting a link with HIV infection. Therefore, our work provides new insights into the architecture of spinal TB granulomas and the role of B-cells and humoral immunity against a highly infectious intracellular pathogen. We propose that our findings will inform biomarker identification for EPTB and possibly the development of related therapeutics and/or vaccines to protect HIV-infected patients against disseminated TB.

  13. Hyaline fibromatosis of Hoffa's fat pad in a patient with a mild type of hyaline fibromatosis syndrome

    International Nuclear Information System (INIS)

    Raak, Sjoerd M. van; Meuffels, Duncan E.; Leenders, Geert J.L.H. van; Oei, Edwin H.G.

    2014-01-01

    Hyaline fibromatosis syndrome (HFS) is a rare, homozygous, autosomal recessive disease, characterized by deposition of hyaline material in skin and other organs, resulting in esthetic problems, disability, and potential life-threatening complications. Most patients become clinically apparent in the first few years of life, and the disorder typically progresses with the appearance of new lesions. We describe a rare case of a 20-year-old patient with juvenile-onset mild HFS who presented with a history of progressive anterior knee pain. Detailed magnetic resonance (MR) imaging findings with histopathological correlation are presented of hyaline fibromatosis of Hoffa's fat pad, including differential diagnosis. The diagnosis of HFS is generally made on basis of clinical and histopathological findings. Imaging findings, however, may contribute to the correct diagnosis in patients who present with a less typical clinical course of HFS. (orig.)

  14. Hyaline fibromatosis syndrome (juvenile hyaline fibromatosis). Whole-body MR findings in two siblings with different subcutaneous nodules distribution

    International Nuclear Information System (INIS)

    Castiglione, Davide; Terranova, Maria Chiara; Picone, Dario; Lo Re, Giuseppe; Salerno, Sergio

    2018-01-01

    Hyaline fibromatosis syndrome (juvenile hyaline fibromatosis) is a rare, progressive, autosomal recessive disorder whose main hallmark is the deposition of amorphous hyaline material in soft tissues, with an evolutionary course and health impairment. It may present involvement of subcutaneous or periskeletal soft tissue, or may develop as a visceral infiltration entity with poor prognosis. Very few radiological data about this inherited condition have been reported, due to the extreme rarity of disease. We herein present a case of two siblings, affected by different severity of the disease, with different clinical features. They were examined by whole-body MR (WBMR) in order to assess different lesions localization, to rule out any visceral involvement and any other associated anomalies and to define patients' management. (orig.)

  15. Hyaline fibromatosis of Hoffa's fat pad in a patient with a mild type of hyaline fibromatosis syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Raak, Sjoerd M. van [Albert Schweitzer Hospital, Department of Radiology, Dordrecht (Netherlands); Meuffels, Duncan E. [Erasmus MC - University Medical Center, Department of Orthopaedic Surgery, Rotterdam (Netherlands); Leenders, Geert J.L.H. van [Erasmus MC - University Medical Center, Department of Pathology, Rotterdam (Netherlands); Oei, Edwin H.G. [Erasmus MC - University Medical Center, Department of Radiology, Rotterdam (Netherlands)

    2014-04-15

    Hyaline fibromatosis syndrome (HFS) is a rare, homozygous, autosomal recessive disease, characterized by deposition of hyaline material in skin and other organs, resulting in esthetic problems, disability, and potential life-threatening complications. Most patients become clinically apparent in the first few years of life, and the disorder typically progresses with the appearance of new lesions. We describe a rare case of a 20-year-old patient with juvenile-onset mild HFS who presented with a history of progressive anterior knee pain. Detailed magnetic resonance (MR) imaging findings with histopathological correlation are presented of hyaline fibromatosis of Hoffa's fat pad, including differential diagnosis. The diagnosis of HFS is generally made on basis of clinical and histopathological findings. Imaging findings, however, may contribute to the correct diagnosis in patients who present with a less typical clinical course of HFS. (orig.)

  16. Hyaline fibromatosis syndrome (juvenile hyaline fibromatosis). Whole-body MR findings in two siblings with different subcutaneous nodules distribution

    Energy Technology Data Exchange (ETDEWEB)

    Castiglione, Davide; Terranova, Maria Chiara; Picone, Dario; Lo Re, Giuseppe; Salerno, Sergio [Policlinico, Universita degli Studi di Palermo, Dipartimento di Biopatologia e Biotecnologie Mediche, Palermo (Italy)

    2018-03-15

    Hyaline fibromatosis syndrome (juvenile hyaline fibromatosis) is a rare, progressive, autosomal recessive disorder whose main hallmark is the deposition of amorphous hyaline material in soft tissues, with an evolutionary course and health impairment. It may present involvement of subcutaneous or periskeletal soft tissue, or may develop as a visceral infiltration entity with poor prognosis. Very few radiological data about this inherited condition have been reported, due to the extreme rarity of disease. We herein present a case of two siblings, affected by different severity of the disease, with different clinical features. They were examined by whole-body MR (WBMR) in order to assess different lesions localization, to rule out any visceral involvement and any other associated anomalies and to define patients' management. (orig.)

  17. Roentgenographic findings in hyaline membrane disease treated with exogenous surfactant: comparison with control group

    International Nuclear Information System (INIS)

    Lee, Sun Kyoung; Lim, Chae Ha; Lim, Woo Young; Kim, Young Sook; Byen, Ju Nam; Oh, Jae Hee; Kim, Young Chul

    1997-01-01

    To compare, with the use of chest radiographic findings, improvement and complications in newborns treated with exogenous surfactant for hyaline membrane disease (HMD), and an untreated control group. Thirty-six patients with HMD were randomly assigned to a control group (n=18) or surfactant treated group (n=18). As part of an initial evaluation of their pulmonary status, we then performed a retrospective statistical analysis of chest radiographic findings obtained in exogenous surfactant treated and untreated infants within the first 90 minutes of life. Subsequent examinations were performed at less than 24 hours of age. Chest radiograph before treatment showed no significant differences between the two groups, but significant improvement was noted in the surfactant treated group, in contrast to the control group. The most common chest radiographic finding after surfactant administration was uniform (n=15) or disproportionate (n=2) improvement of pulmonary aeration. Patent ductus arteriosus developed in three treated neonates and in four cases in the control group. Air leak occurred in three cases in the treated group and in five cases in the control group. In one treated patient pulmonary hemorrhage developed and intracranial hemorrhage occurred in three treated neonates and in four cases in the control group. Bronchopulmonary dysplasia was developed in 6 cases of treated group and 3 cases of control group. A chest radiograph is considered to be helpful in the evaluation of improvement and complications of HMD in infants treated with surfactant

  18. Medullary carcinoma of the thyroid - an unusual case of hyalinizing ...

    African Journals Online (AJOL)

    Medullary thyroid carcinoma is a neoplasm occurring in sporadic and familial patterns. A rare variant of medullary thyroid carcinoma shows microscopic features similar to hyalinizing trabecular adenoma of thyroid. Detection of this variant requires a high index of suspicion and immunohistochemical confirmation by ...

  19. An in vitro model of Mycobacterium leprae induced granuloma formation.

    Science.gov (United States)

    Wang, Hongsheng; Maeda, Yumi; Fukutomi, Yasuo; Makino, Masahiko

    2013-06-20

    Leprosy is a contagious and chronic systemic granulomatous disease caused by Mycobacterium leprae. In the pathogenesis of leprosy, granulomas play a key role, however, the mechanisms of the formation and maintenance of M. leprae granulomas are still not clearly understood. To better understand the molecular physiology of M. leprae granulomas and the interaction between the bacilli and human host cells, we developed an in vitro model of human granulomas, which mimicked the in vivo granulomas of leprosy. Macrophages were differentiated from human monocytes, and infected with M. leprae, and then cultured with autologous human peripheral blood mononuclear cells (PBMCs). Robust granuloma-like aggregates were obtained only when the M. leprae infected macrophages were co-cultured with PBMCs. Histological examination showed M. leprae within the cytoplasmic center of the multinucleated giant cells, and these bacilli were metabolically active. Macrophages of both M1 and M2 types co-existed in the granuloma like aggregates. There was a strong relationship between the formation of granulomas and changes in the expression levels of cell surface antigens on macrophages, cytokine production and the macrophage polarization. The viability of M. leprae isolated from granulomas indicated that the formation of host cell aggregates benefited the host, but the bacilli also remained metabolically active. A simple in vitro model of human M. leprae granulomas was established using human monocyte-derived macrophages and PBMCs. This system may be useful to unravel the mechanisms of disease progression, and subsequently develop methods to control leprosy.

  20. Lethal midline granuloma syndrome: a diagnostic dilemma

    International Nuclear Information System (INIS)

    Ribeiro, Bruno Niemeyer de Freitas; Bahia, Paulo Roberto Valle; Oliveira, Ana Luiza Vianna Sobral de Magalhaes; Marchon Junior, Joao Luiz

    2012-01-01

    The rare lethal midline granuloma syndrome is difficult to diagnose because of the wide array of related diseases and lack of knowledge by the majority of physicians. In the present report, the authors describe the case of a patient with this disease, caused by squamous cell carcinoma, drawing attention to differential diagnoses and to clinical and radiological findings that may be useful to define the diagnosis. (author)

  1. Lethal midline granuloma syndrome: a diagnostic dilemma

    Energy Technology Data Exchange (ETDEWEB)

    Ribeiro, Bruno Niemeyer de Freitas; Bahia, Paulo Roberto Valle [Radiology, Hospital Universitario Clementino Fraga Filho - Universidade Federal do Rio de Janeiro (HUCFF-UFRJ), Rio de Janeiro, RJ (Brazil); Oliveira, Ana Luiza Vianna Sobral de Magalhaes [Resident of Medical Practice, Hospital Federal da Lagoa, Rio de Janeiro, RJ (Brazil); Marchon Junior, Joao Luiz [Unit of Computed Tomography, Hospital Federal da Lagoa, Rio de Janeiro, RJ (Brazil)

    2012-11-15

    The rare lethal midline granuloma syndrome is difficult to diagnose because of the wide array of related diseases and lack of knowledge by the majority of physicians. In the present report, the authors describe the case of a patient with this disease, caused by squamous cell carcinoma, drawing attention to differential diagnoses and to clinical and radiological findings that may be useful to define the diagnosis. (author)

  2. Radiographic features of periapical cysts and granulomas

    OpenAIRE

    Zain, R. B.; Roswati, N.; Ismail, K.

    1989-01-01

    Many studies have been reported on radiographic lesion sizes of periapical lesions. However no studies have been reported on prevalences of subjective radiographic features in these lesions except for the early assumption that a periapical cyst usually exhibit a radiopaque cortex. This study is conducted to evaluate the prevalences of several subjective radiographic features of periapical cysts and granulomas in the hope to identify features that maybe suggestive of either diagnosis. The resu...

  3. Epulis and pyogenic granuloma with occlusal interference

    Directory of Open Access Journals (Sweden)

    Widowati Witjaksono

    2005-06-01

    Full Text Available In dental clinic of Hospital University Science Malaysia (HUSM, there were cases with Localized Gingival Enlargement (LGE in the oral cavity with occlusal interference. In this study, three cases were observed. They were a 13 - year- old female with fibrous lge around 31 and 32 with occlusal interference in protrusive movement due to X bite, a 15 - year – old female with pyogenic granuloma near 11 & 21 with occlusal interference due to deep bite; and a 24 – year – old female who was eight months in pregnancy with pyogenic granuloma on the 34-35 and severe generalized pregnancy gingivitis with occlusal interference in centric occlusion and lateral movement. Clinical and histopathological diagnosis of the first case showed fibrous epulis, whereas the second and third cases disclosed pyogenic granuloma. Chronic trauma of the gingiva due to occlusal interference was assumed to be the cause of those LGE in case 1 and 2, while in case 3 poor oral hygiene and chronic trauma were assumed to be the etiologic factors.

  4. MR findings of calvarial eosinophilic granuloma

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Gi Bok; Son, Seok Hyun; Eun, Choong Ki; Park, Sung Kun; Han, Sang Suk [Pusan Paik Hospital, Inje Univ., Pusan (Korea, Republic of); Choi, Sun Seob [Donga Univ. College of Medicine, Pusan (Korea, Republic of); Kim, Seong Min [Kosin Univ. College of Medicine, Pusan (Korea, Republic of); Kim, Chang Soo [Maryknoll Hospital, Pusan (Korea, Republic of)

    2001-03-01

    The purpose of this study was to evaluate the MR findings of calvarial eosinophilic granuloma. We reviewed the MR imaging studies of nine patients [M:F=3:6, aged 6-35 (mean, 20.5) years] with pathologically proven eosinophilic granuloma in the calvaria. The findings were evaluated for involvement of the diploic space, changes in adjacent bone marrow, distinction of the transitional zone, pattern of bone destruction, signal intensity and contrast enhancement of the tumor, and contrast enhancement of the adjacent dura. All lesions involved the diploic space, showed no change in adjacent bone marrow, and had a distinct transitional zone. In most (8/9) cases there was asymmetric bony destruction. On T1-weighted images, signal intensities of the tumors varied, while on T2-weighted images, hyperintensity was observed in seven cases, isointensity in one, and hypointensity in one. After the administration of contrast material, enhancement was homogeneous in four cases and inhomogeneous in five. Enhancement of the adjacent dura was demonstrated in all nine cases. The characteristic MR findings of calvarial eosinophilic granuloma are variable signal intensity on T1WI, high signal intensity on T2WI, and marked contrast enhancement; in addition, there is a distinct transitional zone, asymmetrical bony destruction, and associated dural enhancement.

  5. Annular elastolytic giant cell granuloma of conjunctiva: A case report

    Directory of Open Access Journals (Sweden)

    Karabi Konar

    2014-01-01

    Full Text Available Annular elastolytic giant cell granuloma is a condition characterized histologically by damaged elastic fibers associated with preponderance of giant cells along with absence of necrobiosis, lipid, mucin, and pallisading granuloma. It usually occurs on sun-damaged skin and hence the previous name actinic granuloma. A similar process occurs on the conjunctiva. Over the past three decades only four cases of conjunctival actinic granuloma have been documented. All the previous patients were females with lesions in nasal or temporal bulbar conjunctiva varying 2-3 mm in size. We report a male patient aged 70 years presenting with a 14 mm × 7 mm fleshy mass on right lower bulbar conjunctiva. Clinical differential diagnoses were lymphoma, squamous cell carcinoma in situ and amyloidosis. Surgical excision followed by histopathology confirmed it to be a case of actinic granuloma. This is the first case of isolated conjunctival actinic granuloma of such a large size reported from India.

  6. Laryngeal granuloma: a complication of prolonged endotracheal intubation.

    OpenAIRE

    Keiser, G. J.; Bozentka, N. E.; Gold, B. D.

    1991-01-01

    Laryngeal granuloma is an uncommon complication arising from irritation of the laryngeal structures. We present a case where bilateral laryngeal granulomas became clinically evident 3 mo after orthognathic surgery. The patient, a 19-yr-old female, developed acute dyspnea after experiencing gradual voice loss. Excision of the lesions under endotracheal general anesthesia led to an uneventful outcome. The causes, predisposing factors, diagnostic features, and treatment of laryngeal granuloma ar...

  7. Endoscopic Transnasal Approach for Cholesterol Granuloma of the Petrous Apex

    Directory of Open Access Journals (Sweden)

    Mohammad Samadian

    2015-01-01

    Full Text Available Cholesterol granulomas are rare round or ovoid cysts. They contain cholesterol crystals surrounded by foreign bodies of giant cells and are characterized by chronic inflammation. Large cholesterol granuloma can compress surrounding tissue especially cranial nerves. There are several types of surgery for the resection of cholesterol granuloma. We describe 4 cases of cholesterol granuloma operated on via transnasal endoscopic approach. In this report, we describe radiologic and pathologic features of this lesion and explain the advantages and disadvantages of transsphenoidal endoscopic approach for these rare lesions.

  8. Granuloma annulare localized to the shaft of the penis

    DEFF Research Database (Denmark)

    Trap, R; Wiebe, B

    1993-01-01

    A case of granuloma annulare localized to the shaft of the penis is reported. The differential diagnoses are discussed. Penile granuloma annulare is a rare disorder and it is concluded that biopsies of penile lesions are recommended to verify the correct diagnosis.......A case of granuloma annulare localized to the shaft of the penis is reported. The differential diagnoses are discussed. Penile granuloma annulare is a rare disorder and it is concluded that biopsies of penile lesions are recommended to verify the correct diagnosis....

  9. Cholesterol granuloma of the petrous apex: CT diagnosis

    Energy Technology Data Exchange (ETDEWEB)

    Lo, W.W.M.; Solti-Bohman, L.G.; Brackmann, D.E.; Gruskin, P.

    1984-12-01

    Cholesterol granuloma of the petrous apex is a readily recognizable and treatable entity that is more common than previously realized. Cholesterol granuloma grows slowly in the petrous apex as a mass lesion until it produces hearing loss, tinnitus, vertigo, and facial twitching. Twelve cases of cholesterol granuloma of the petrous apex are illustrated; ten of these analyzed in detail, especially with respect to CT findings. A sharply and smoothly marginated expansile lesion in the petrous apex, isodense with plain and nonenhancing on CT, is in all probability a cholesterol granuloma. Preoperative recognition by CT is important for planning proper treatment.

  10. Cholesterol granuloma of the petrous apex: CT diagnosis

    International Nuclear Information System (INIS)

    Lo, W.W.M.; Solti-Bohman, L.G.; Brackmann, D.E.; Gruskin, P.

    1984-01-01

    Cholesterol granuloma of the petrous apex is a readily recognizable and treatable entity that is more common than previously realized. Cholesterol granuloma grows slowly in the petrous apex as a mass lesion until it produces hearing loss, tinnitus, vertigo, and facial twitching. Twelve cases of cholesterol granuloma of the petrous apex are illustrated; ten of these analyzed in detail, especially with respect to CT findings. A sharply and smoothly marginated expansile lesion in the petrous apex, isodense with plain and nonenhancing on CT, is in all probability a cholesterol granuloma. Preoperative recognition by CT is important for planning proper treatment

  11. A Hyalinized Trichilemmoma of the Eyelid in a Teenager.

    Science.gov (United States)

    Jakobiec, Frederick A; Stagner, Anna M; Sassoon, Jodi; Goldstein, Scott; Mihm, Martin C

    2016-01-01

    A 16-year-old African American male, the youngest patient to date, presented with a well-circumscribed upper eyelid lesion. On excision, the dermal nodule was contiguous with the epidermis, displayed trichohyalin-like bodies in an expanded outer root sheath, and was composed chiefly of small cellular clusters separated by a prominent network of periodic acid Schiff -positive hyaline bands of basement membrane material. The tumor cells were positive for high molecular weight cytokeratins (CK) 5/6, CK14, and CK34βE12 and were negative for CK7, carcinoembryonic antigen and epithelial membrane antigen. Negative S100, glial fibrillary acidic protein, and smooth muscle actin immunoreactions ruled out a myoepithelial lesion. The Ki-67 proliferation index was <10%. The diagnosis was a hyalinized trichilemmoma, contrasting with the more common lobular type. As an isolated lesion, trichilemmoma does not portend Cowden syndrome.

  12. Three new species of Trichoderma with hyaline ascospores from China.

    Science.gov (United States)

    Zhu, Z X; Zhuang, W Y

    2015-01-01

    Collections of Trichoderma having hyaline ascospores from different areas of China were examined. Using combined analyses of morphological data, culture characters and phylogenetic information based on rDNA sequences of partial nuc translation elongation factor 1-α encoding gene (TEF1-α) and the gene encoding the second largest nuc RNA polymerase subunit (RPB2), three new species, Trichoderma applanatum, T. oligosporum and T. sinoluteum, were discovered and are described. Trichoderma applanatum produces continuous flat to pulvinate, white to cream stromata with dense orange or pale brown ostioles, and simple acremonium-like to verticillium-like conidiophores, belongs to the Hypocreanum clade and is closely related to T. decipiens. Trichoderma oligosporum forms reddish brown stromata with a downy surface, hyaline conidia and gliocladium-like conidiophores, and is closely related to but distinct from T. crystalligenum in the Psychrophila clade. Trichoderma sinoluteum, as a member of the Polysporum clade, is characterized by pale yellow stromata, white pustulate conidiomata, pachybasium-like conidiophores, and hyaline conidia. Differences between the new species and their close relatives are discussed. © 2015 by The Mycological Society of America.

  13. Surgical correction of joint deformities and hyaline cartilage regeneration

    Directory of Open Access Journals (Sweden)

    Vyacheslav Alexandrovich Vinokurov

    2015-12-01

    Full Text Available Aim. To determine a method of extra-articular osteochondral fragment formation for the improvement of surgical correction results of joint deformities and optimization of regenerative conditions for hyaline cartilage. Materials and Methods. The method of formation of an articular osteochondral fragment without penetration into the joint cavity was devised experimentally. More than 30 patients with joint deformities underwent the surgery. Results. During the experiments, we postulated that there may potentially be a complete recovery of joint defects because of hyaline cartilage regeneration. By destructing the osteochondral fragment and reforming it extra-articularally, joint defects were recovered in all patients. The results were evaluated as excellent and good in majority of the patients. Conclusion. These findings indicate a novel method in which the complete recovery of joint defects due to dysplastic genesis or osteochondral defects as a result of injuries can be obtained. The devised method can be used in future experiments for objectification and regenerative potential of hyaline cartilage (e.g., rate and volume of the reformed joints that regenerate, detection of cartilage elements, and the regeneration process.

  14. Sea urchin granuloma Granulomas por ouriços-do-mar

    Directory of Open Access Journals (Sweden)

    André Luiz Rossetto

    2006-10-01

    Full Text Available Injuries caused by venomous and poisonous aquatic animals may provoke important morbidity in humans. The phylum Echinoderma include more than 6000 species of starfish, sea urchins, sand dollars, and sea cucumbers some of which have been found responsible for injuries to humans. Initial injuries by sea urchins are associated with trauma and envenomation, but later effects can be observed. Sea urchin granuloma is a chronic granulomatous skin disease caused by frequent and successive penetration of sea urchin spines which have not been removed from wounds. The authors report a typical case of sea urchin granuloma in a fisherman and its therapeutic implications.Os acidentes por animais aquáticos traumatizantes e venenosos podem provocar morbidez importante em humanos. Equinodermos marinhos incluem mais de 6000 espécies de estrelas-do-mar, ouriços-do-mar, "bolachas-de-praia" e pepinos-do-mar. Vários equinodermos têm sido responsabilizados por acidentes em humanos. Granulomas por ouriço-do-mar são lesões de caráter granulomatoso, crônicas, causada por acidentes com espículas de ouriço-do-mar. Os autores relatam um caso típico de granulomas por ouriço-do-mar ocorrido em um pescador e enfatizam as implicações terapêuticas aplicadas.

  15. Skin granulomas due to Mycobacterium gordonae.

    Science.gov (United States)

    Gengoux, P; Portaels, F; Lachapelle, J M; Minnikin, D E; Tennstedt, D; Tamigneau, P

    1987-04-01

    A 38-year-old woman presented with small, ulcerated, red or bluish nodules on the right hand, clinically resembling mycobacterial granulomas; these appeared a few months after a bite by a rat, while the patient was collecting frogs in a pond in the Belgian Ardennes. The histopathologic picture was compatible with a diagnosis of mycobacterial infection and rare acid-fast bacilli could be found. Repeated bacteriologic investigations were performed and these led to the identification of a strain displaying characteristics of Mycobacterium gordonae. The skin condition responded well to rifampicin (300 mg/day) within 6 months.

  16. Endoscopic transsphenoidal surgery for cholesterol granulomas involving the petrous apex

    NARCIS (Netherlands)

    Georgalas, C.; Kania, R.; Guichard, J.-P.; Sauvaget, E.; Tran Ba Huy, P.; Herman, P.

    2008-01-01

    Surgery for cholesterol granulomas involving the petrous apex has traditionally been performed via a lateral skull base approach. We present a case-series of four cholesterol granulomas treated through the endoscopic-transsphenoid approach over the last 10 years. Drainage was successful and

  17. CROHN’S GRANULOMA OF SKIN IN IBD COLITIS

    OpenAIRE

    Hardeep Singh; Vijay; Anumeet Singh

    2015-01-01

    Crohn’s granuloma is a sarcoid - like lesion, with collections of monocyte/macrophages cells (epitheloid histiocytes) and other inflammatory cells, including lymphocytes and eosinophils with occasional giant cells. They are seen rarely in extraintestinal sites. Crohn’s granuloma is highly characteristic of C rohn’s disease. It responds to treatment of ...

  18. Aluminium allergy and granulomas induced by vaccinations for children

    DEFF Research Database (Denmark)

    Andersen, Rosa Marie O; Zachariae, Claus; Johansen, Jeanne Duus

    2014-01-01

    Vaccination with aluminium-adsorbed vaccines can induce aluminium allergy with persistent itching subcutaneous nodules at the injection site - vaccination granulomas. In this article we give an overview of childhood aluminium-adsorbed vaccines available in Denmark. Through literature studies we...... examine the incidence, the symptoms and the prognosis for the vaccination granulomas and the allergy. Finally we discuss the status in Denmark....

  19. High matrix metalloproteinase activity is a hallmark of periapical granulomas.

    Science.gov (United States)

    de Paula-Silva, Francisco Wanderley Garcia; D'Silva, Nisha J; da Silva, Léa Assed Bezerra; Kapila, Yvonne Lorraine

    2009-09-01

    The inability to distinguish periapical cysts from granulomas before performing root canal treatment leads to uncertainty in treatment outcomes because cysts have lower healing rates. Searching for differential expression of molecules within cysts or granulomas could provide information with regard to the identity of the lesion or suggest mechanistic differences that may form the basis for future therapeutic intervention. Thus, we investigated whether granulomas and cysts exhibit differential expression of extracellular matrix (ECM) molecules. Human periapical granulomas, periapical cysts, and healthy periodontal ligament tissues were used to investigate the differential expression of ECM molecules by microarray analysis. Because matrix metalloproteinases (MMP) showed the highest differential expression in the microarray analysis, MMPs were further examined by in situ zymography and immunohistochemistry. Data were analyzed by using one-way analysis of variance followed by the Tukey test. We observed that cysts and granulomas differentially expressed several ECM molecules, especially those from the MMP family. Compared with cysts, granulomas exhibited higher MMP enzymatic activity in areas stained for MMP-9. These areas were composed of polymorphonuclear cells (PMNs) in contrast to cysts. Similarly, MMP-13 was expressed by a greater number of cells in granulomas compared with cysts. Our findings indicate that high enzymatic MMP activity in PMNs together with MMP-9 and MMP-13 stained cells could be a molecular signature of granulomas unlike periapical cysts.

  20. Post-operative intracranial foreign body granuloma: A case report

    International Nuclear Information System (INIS)

    Djindjian, M.; Brugieres, P.; Razavi-Encha, F.; Allegret, C.; Poirier, J.; Paris-12 Univ., 94 - Creteil

    1987-01-01

    The authors report and discuss some clinical, radiological, histological and ultrastructural aspects of an intracranial foreign body granuloma. This granuloma, which simulated a cavernoma, was due to a surgical swab forgotten during a previous neurosurgical evacuation of an intracerebral hematoma. (orig.)

  1. Granuloma periapical: tratamiento convencional. Reporte de un caso

    Directory of Open Access Journals (Sweden)

    Natalia Patricia Harris Ortega

    2014-03-01

    Full Text Available Title: Periapical granuloma: conventional treatment. Case reportLos Granulomas radiculares son lesiones periapicales crónicas, consideradas secuelas directas de procesos infecciosos resultantes de la necrosis pulpar, extendiéndose hacia la región perirradicular. Los granulomas se pueden presentar por fallas en los tejidos duros, resultantes de caries, fracturas y procedimientos quirúrgicos. Se realizó tratamiento de endodoncia convencional con preparación invertida a paciente de 15 años con diagnóstico de Granuloma periapical (periodontitis apical asintomáticay su posterior recuperación de la lesión de órgano dentario 36. (DUAZARY 2013 No. 2, 141 - 144AbstractRoot granulomas are chronic periapical lesions, considered direct sequels of infectious processes resulting from pulp necrosis, extending into the periradicular region. The granulomas can occur due to failures in hard tissues, resulting from caries, fractures and surgical procedures. A conventional endodontic treatment was done with crown down technique in a patient of 15 years old with a diagnosis of periapical granuloma (chronic nonsuppurative apical periodontitis and subsequent recovery from injury in tooth 36.Keywords: periapical granuloma; periapical periodontitis (MESH Database.

  2. Case Report: Corneal Pyogenic Granuloma: Rare Complication of ...

    African Journals Online (AJOL)

    Slit lamp examination showed vascularized central corneal mass with surrounding stromal infiltrates. The mass was excised, and histopathological examination confirmed pyogenic granuloma of the cornea. Conclusion: Corneal pyogenic granuloma could be a rare complication of infectious keratitis. Therefore, it should be ...

  3. Canine Oral Eosinophilic Granuloma Treated with Electrochemotherapy

    Directory of Open Access Journals (Sweden)

    Matías Nicolás Tellado

    2014-01-01

    Full Text Available A case of a canine oral eosinophilic granuloma in a 14-year-old female crossbred is described. The dog was presented with a history of ptyalism, halitosis, local pain, decreased appetite, and blood staining noted on food and water bowls. Clinical, hematologic, and biochemical examinations, abdominal ultrasonography, and 3-view chest radiographs were performed, and no metastases were found. Histopathologic examination of two 6 mm punch biopsies from the oral lesion revealed the presence of eosinophilic granulomatous lesions in the submucosa. After treatment with corticosteroids and wide spectrum antibiotics no significant changes in clinical signs and lesion size were observed. Electrochemotherapy (ECT, a novel tumor treatment routinely used for cutaneous and subcutaneous tumors in human patients in the European Union since 2006, was used to treat the eosinophilic granuloma. The procedure was performed under general anesthesia, followed by intravenous administration of bleomycin. Six weeks after treatment a complete response with disappearance of the mass and improvement of clinical signs were observed.

  4. Role of matrix metalloproteinases in radicular cysts and periapical granulomas.

    Science.gov (United States)

    D'addazio, G; Artese, L; Piccirilli, M; Perfetti, G

    2014-01-01

    The aim of the present study was to evaluate the expression and distribution of different classes of matrix metalloproteinases (MMPs) in radicular cysts and periapical granulomas. Twenty consecutive specimens of radicular cysts and 20 of periapical granulomas were selected. Expression of MMP-2, -9, -8, -13, -3 was immunohistochemically evaluated. The intensity of expression of the MMPs was evaluated using a semi-quantitative analysis: low = +; intermediate = ++; high = +++. Positive expression of MMPs was present with different distribution. MMP-9 expressed differently in the lesions. Indeed, in periapical granulomas low expression was found in endothelial cells and fibroblasts, whilst high intensities were only detected in inflammatory cells. On the contrary, in radicular cysts the high intensities were mainly present in keratinocytes and fibroblasts. MMP-8 was mainly expressed in inflammatory cells of periapical granulomas. MMP-2 and -3 presented a low intensity of expression in both groups. MMP-13 showed a variable pattern of distribution in the different cell types of the two different lesions. The present investigation supports the role of MMPs in the inflammatory process leading to the development of radicular cysts and periapical granulomas. The results of the present study suggested that the increased enlargement of radicular cysts, compared to periapical granulomas, might be related to a higher expression of MMP-9. On the other hands, the higher intensity of expression of MMP-8 in periapical granulomas could be related to an active inflammatory process. MMP-8 could play an important role in the inflammation processes during the development of periapical lesions.

  5. Computed tomography of lethal medline granuloma

    International Nuclear Information System (INIS)

    Lee, Ho Suk; Kim, Tae Ho; Suh, Kyung Jin; Kim, Tae Hun; Kim, Yong Joo; Kang, Duk Sik

    1991-01-01

    In order to clarify the CT findings of lethal midline granuloma (LMG) diagnosed clinically or histopathologically, the authors retrospectively analyzed 12 patients who were seen at Kyungpook National University Hospital from February 1985 to August 1989. CT showed nasal mucosal thickening and / or soft tissue mass (9 case), spreading of the lesions along the facial subcutaneous fat plane (8 cases), invasion into the paranasal sinuses (5 cases), bone destruction (5 cases), nasopharyngeal mass lesion (2 cases), and extension of the lesion into the infratemporal fossa (1 case). In spite of the fact that CT does not make definitive diagnosis of LMG, it permits evaluation of the extent of the lesion, detection of the combined lesion, differential diagnosis, and close monitoring of its evolution under treatment

  6. Eosinophilic granuloma of bone in children

    International Nuclear Information System (INIS)

    Leblan, I.; Gaucher, H.; Hoeffel, J.C.; Arnould, V.; Galloy, M.A.; Mainard, L.

    1995-01-01

    Eosinophilic granuloma of bone or Langerhans cell histiocytosis is mostly unifocal. It appears on plain X Ray as a solitary destructive lesion of long bones or flat bones. Computerized tomography (CT) is useful to define the extension to the cortical bone and also to precisely localize the lesion when the anatomy is complex (hip, spine, base of the skull). Magnetic resonance (MR) is very useful in case of more aggressive lesions when there is extension to soft tissues. Differential diagnosis includes circumscribed osteitis and tumors in the case of extensive destruction. The natural course of solitary lesions is favorable, spontaneously or with therapy. The prognosis is more serious in the case of multiple lesions. (authors)

  7. Aluminium hydroxide-induced granulomas in pigs

    DEFF Research Database (Denmark)

    Valtulini, S; Macchi, C; Ballanti, P

    2005-01-01

    The effect of intramuscular injection of 40 mg/2 ml aluminium hydroxide in the neck of pigs was examined in a number of ways. The investigation followed repeated slaughterhouse reports, according to which 64.8% of pigs from one particular farm were found at slaughter to have one or more nodules...... in the muscles of the neck (group slaughtered). The pigs had been injected with a vaccine containing 40 mg/2 ml dose of aluminium hydroxide as adjuvant. Research consisted of two phases: first, an epidemiological study was carried out, aimed at determining the risk factors for the granulomas. The results...... and adjuvant) to pigs inoculated twice with apyrogenic bi-distilled water (group water) and to pigs inoculated once with the adjuvant and once with apyrogenic bi-distilled water (group adjuvant/water). Both studies agreed in their conclusions, which indicate that the high amount of aluminium hydroxide...

  8. Keloidal granuloma faciale with extrafacial lesions

    Directory of Open Access Journals (Sweden)

    Verma Rajesh

    2005-01-01

    Full Text Available Granuloma faciale (GF is a rare cutaneous disorder characterized by one to several soft, erythematous to livid papules, plaques or nodules, usually occurring on the face. Extrafacial lesions are uncommon. A 52-year-old lady with multiple asymptomatic, variously sized brownish-black colored, firm, sharply circumscribed plaques resembling keloids on both cheeks and extrafacial lesions on the right arm and the right breast is presented for its unusual keloidal appearance and typical histopathological findings. She failed to respond to oral dapsone 100 mg daily administered for 3 months. Local infiltration of triamcinolone combined with cryotherapy led to only partial flattening of the lesions. All the skin lesions were excised surgically followed by flap transfer grafting on both cheeks. The cosmetic outcome was highly satisfactory.

  9. Giant cells reparative granuloma of the spine

    International Nuclear Information System (INIS)

    Toro, Nancy; Jorge Andres Delgado; Walter Leon

    1998-01-01

    The giant cell reparative granuloma (GCRG), was first described by Jaffe in 1953, which found it to be clinically and histopathologically different from the giant cell tumor. The GCRG accounts for 1.0 % of the osseous tumoral lesions, is more frequently found in females (68%) and in patients less than 30 years old (74%). It was believed that it only affected the jaw; it has been reported compromising other locations including the spine (7 cases). We report a case affecting the vertebral bodies of C2-C3 in a 10 years old, female patient, who was studied by plain film and MRI. The histological diagnosis was established at surgery, this report is the first one described in a cervical location and the second studied by MRI

  10. A Case of Typhoid Fever with Hepatic Granulomas and Enteritis

    Directory of Open Access Journals (Sweden)

    Shraddha Narechania

    2015-01-01

    Full Text Available The common histopathologic hepatic manifestations in patients infected with Salmonella include cloudy swelling and balloon degeneration with vacuolation of the hepatocytes and steatosis. Hepatic granulomas are a very rare finding, so far reported in very few cases. We report a 64-year-old patient with Salmonella enteritis who was found to have multiple 1.4 to 1.6 cm hypoechoic liver masses on ultrasound of the abdomen which on biopsy revealed hepatic granulomas. This case highlights the importance of keeping the differential diagnosis of Salmonella typhi (S. typhi in mind in a patient with hepatic granulomas.

  11. Granuloma periapical: tratamiento convencional. Reporte de un caso

    OpenAIRE

    Natalia Patricia Harris Ortega; Fernando Javier Guzman Lopez; Antonio Díaz Caballero

    2014-01-01

    Title: Periapical granuloma: conventional treatment. Case reportLos Granulomas radiculares son lesiones periapicales crónicas, consideradas secuelas directas de procesos infecciosos resultantes de la necrosis pulpar, extendiéndose hacia la región perirradicular. Los granulomas se pueden presentar por fallas en los tejidos duros, resultantes de caries, fracturas y procedimientos quirúrgicos. Se realizó tratamiento de endodoncia convencional con preparación invertida a paciente de 15 años con d...

  12. A case report of giant cell reparative granuloma

    Energy Technology Data Exchange (ETDEWEB)

    Park, Chang Sik; Lee, Yoo Dong [College of Dentistry, Seoul National University, Seoul (Korea, Republic of)

    1974-11-15

    The authors observed in the routine roentgenographic examination, a rare case of Giant cell Reparative Granuloma found in the mandible of woman 23 years of age who had visited Infirmary of Dental College, Seoul National University be cause of the traffic accident. In the serial roentgenograms, authors had obtained the results as follows; 1. Giant cell Reparative Granuloma occurred below the 20 years of age, and occurred in the mandible of female. 2. In roentgenograms, it figures the radiolucent lesion with multilocular appearance. 3. The growing process of Giant Cell Reparative Granuloma is not by the neoplastic reaction but by the local reparative reaction.

  13. Coexistence of morphea and granuloma annulare: a rare case report

    Directory of Open Access Journals (Sweden)

    Şenay Ağırgöl

    2017-11-01

    Full Text Available ABSTRACT CONTEXT: Localized scleroderma (morphea is characterized by fibrosis of skin and subcutaneous tissue. Granuloma annulare is a relatively common disease that is characterized by dermal papules and arciform plaques. CASE REPORT: Here, we present the case of a 42-year-old woman who developed granuloma annulare on the dorsum of her feet and abdominal region, and morphea on the anterior side of her lower limbs. We also discuss the etiological and pathogenetic processes that may cause the rare coexistence of these two diseases. CONCLUSION: Only a few cases in the literature have described coexistence of morphea and granuloma annulare.

  14. Granuloma central de células gigantes Giant cells central granuloma

    Directory of Open Access Journals (Sweden)

    Ayelén María Portelles Massó

    2011-03-01

    Full Text Available El granuloma reparativo central de células gigantes es una lesión proliferativa no neoplásica de etiología desconocida. Se presenta un paciente masculino de 40 años de edad, portador de prótesis parcial superior. Fue remitido al Servicio de Cirugía Maxilofacial del Hospital "V. I. Lenin" por presentar aumento de volumen en reborde alveolar superior, de color rojo grisáceo y que provocaba expansión de corticales óseas. Una vez analizados los exámenes clínicos, radiográficos e histopatológicos se diagnosticó un granuloma reparativo central de células gigantes Se realizó exéresis quirúrgica de la lesión y extracción de dientes adyacentes con una evolución satisfactoria sin señales de recidivas luego de tres años del tratamiento. El granuloma reparativo central de células gigantes se presentó como respuesta a un trauma. La correcta interpretación de los datos clínicos, radiográficos e histopatológicos nos permitió llegar al correcto diagnóstico y plan de tratamiento.Giant-cell central reparative granuloma is non neoplastic proliferative lesion of unknown etiology. We report a 40 years old male patient who was admitted at the Maxillofacial Service of the "V. I. Lenin" Hospital. The patient had partial upper prosthesis and was complaining of red-grey volume increase lesion in upper alveolar ridge which led to the expansion of cortical bone. Having analyzed clinical, radiographic and histopathological findings the case was concluded as a giant-cell central reparative granuloma. Surgical exeresis and adjunct tooth extraction were done. After three years of treatment, satisfactory follow up without recurrence is reported.

  15. The junction between hyaline cartilage and engineered cartilage in rabbits.

    Science.gov (United States)

    Komura, Makoto; Komura, Hiroko; Otani, Yushi; Kanamori, Yutaka; Iwanaka, Tadashi; Hoshi, Kazuto; Tsuyoshi, Takato; Tabata, Yasuhiko

    2013-06-01

    Tracheoplasty using costal cartilage grafts to enlarge the tracheal lumen was performed to treat congenital tracheal stenosis. Fibrotic granulomatous tissue was observed at the edge of grafted costal cartilage. We investigated the junction between the native hyaline cartilage and the engineered cartilage plates that were generated by auricular chondrocytes for fabricating the airway. Controlled, prospecive study. In group 1, costal cartilage from New Zealand white rabbits was collected and implanted into a space created in the cervical trachea. In group 2, chondrocytes from auricular cartilages were seeded on absorbable scaffolds. These constructs were implanted in the subcutaneous space. Engineered cartilage plates were then implanted into the trachea after 3 weeks of implantation of the constructs. The grafts in group 1 and 2 were retrieved after 4 weeks. In group 1, histological studies of the junction between the native hyaline cartilage and the implanted costal cartilage demonstrated chondrogenic tissue in four anastomoses sides out of the 10 examined. In group 2, the junction between the native trachea and the engineered cartilage showed neocartilage tissue in nine anastomoses sides out of 10. Engineered cartilage may be beneficial for engineered airways, based on the findings of the junction between the native and engineered grafts. Copyright © 2012 The American Laryngological, Rhinological and Otological Society, Inc.

  16. Mechanical properties of hyaline and repair cartilage studied by nanoindentation.

    Science.gov (United States)

    Franke, O; Durst, K; Maier, V; Göken, M; Birkholz, T; Schneider, H; Hennig, F; Gelse, K

    2007-11-01

    Articular cartilage is a highly organized tissue that is well adapted to the functional demands in joints but difficult to replicate via tissue engineering or regeneration. Its viscoelastic properties allow cartilage to adapt to both slow and rapid mechanical loading. Several cartilage repair strategies that aim to restore tissue and protect it from further degeneration have been introduced. The key to their success is the quality of the newly formed tissue. In this study, periosteal cells loaded on a scaffold were used to repair large partial-thickness cartilage defects in the knee joint of miniature pigs. The repair cartilage was analyzed 26 weeks after surgery and compared both morphologically and mechanically with healthy hyaline cartilage. Contact stiffness, reduced modulus and hardness as key mechanical properties were examined in vitro by nanoindentation in phosphate-buffered saline at room temperature. In addition, the influence of tissue fixation with paraformaldehyde on the biomechanical properties was investigated. Although the repair process resulted in the formation of a stable fibrocartilaginous tissue, its contact stiffness was lower than that of hyaline cartilage by a factor of 10. Fixation with paraformaldehyde significantly increased the stiffness of cartilaginous tissue by one order of magnitude, and therefore, should not be used when studying biomechanical properties of cartilage. Our study suggests a sensitive method for measuring the contact stiffness of articular cartilage and demonstrates the importance of mechanical analysis for proper evaluation of the success of cartilage repair strategies.

  17. Quasi-static elastography comparison of hyaline cartilage structures

    Science.gov (United States)

    McCredie, A. J.; Stride, E.; Saffari, N.

    2009-11-01

    Joint cartilage, a load bearing structure in mammals, has only limited ability for regeneration after damage. For tissue engineers to design functional constructs, better understanding of the properties of healthy tissue is required. Joint cartilage is a specialised structure of hyaline cartilage; a poroviscoelastic solid containing fibril matrix reinforcements. Healthy joint cartilage is layered, which is thought to be important for correct tissue function. However, the behaviour of each layer during loading is poorly understood. Ultrasound elastography provides access to depth-dependent information in real-time for a sample during loading. A 15 MHz focussed transducer provided details from scatterers within a small fixed region in each sample. Quasi-static loading was applied to cartilage samples while ultrasonic signals before and during compressions were recorded. Ultrasonic signals were processed to provide time-shift profiles using a sum-squared difference method and cross-correlation. Two structures of hyaline cartilage have been tested ultrasonically and mechanically to determine method suitability for monitoring internal deformation differences under load and the effect of the layers on the global mechanical material behaviour. Results show differences in both the global mechanical properties and the ultrasonically tested strain distributions between the two structures tested. It was concluded that these differences are caused primarily by the fibril orientations.

  18. Cholesterol granuloma of the orbit: An atypical presentation

    Directory of Open Access Journals (Sweden)

    Syed A R Rizvi

    2014-01-01

    Full Text Available Cholesterol granuloma is a rare, well-defined lesion of the orbit. In the orbit, diploe of the frontal bone is involved almost exclusively. We report an atypical case of cholesterol granuloma involving superomedial quadrant of orbit. A 42-year-old male presented with progressive, painless, proptosis with infero-temporal displacement of left eye. A large mass was felt beneath the bony orbital margin in the superomedial quadrant of the left orbit. Computerized tomography (CT scan revealed an extraconal superomedial, heterogeneous enhancing mass which was isodense with brain and pushing the globe inferolaterally and anteriorly. Excision biopsy of the tumor revealed the typical features of a cholesterol granuloma without any epithelial elements. Cholesterol granuloma of the orbit is a rare entity, but it can be diagnosed and differentiated from other lesions of the superior orbit by its characteristic clinical, radiological and histopathological features. An appropriate intervention in time carries a good prognosis with almost no recurrence.

  19. Eosinophilic granuloma in the anterior mandible mimicking radicular cyst

    International Nuclear Information System (INIS)

    Lee, Byung Do; Lee, Wan; Lee, Jun; Son, Hyun Jin

    2013-01-01

    Eosinophilic granuloma is a common expression of Langerhans cell histiocytosis and corresponds with typical bone lesions. The radiographic appearance of eosinophilic granuloma in the jaw is variable and not specific. It may resemble periodontitis, radicular cyst, or malignancies. The purpose of this report is to describe the characteristic radiographic features of eosinophilic granuloma of a 39-year-old male. The lesion in the anterior mandible was first diagnosed as radicular cyst because the radiographic findings were ovoid radiolucent lesion with well-defined border. However, careful interpretation revealed a non-corticated border and floating tooth appearance that were the characteristic radiographic features for the differential diagnosis. Early clinical signs of eosinophilic granuloma can occur in the jaw and a bony destructive lesion might be mistaken for periodontitis or an odontogenic cystic lesion; therefore, careful interpretation of radiographs should be emphasized.

  20. Eosinophilic granuloma in the anterior mandible mimicking radicular cyst

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Byung Do; Lee, Wan; Lee, Jun [College of Dentistry, Wonkwang University, Iksan (Korea, Republic of); Son, Hyun Jin [Dept. of Pathology, School of Medicine, Eulji University, Daejeon (Korea, Republic of)

    2013-06-15

    Eosinophilic granuloma is a common expression of Langerhans cell histiocytosis and corresponds with typical bone lesions. The radiographic appearance of eosinophilic granuloma in the jaw is variable and not specific. It may resemble periodontitis, radicular cyst, or malignancies. The purpose of this report is to describe the characteristic radiographic features of eosinophilic granuloma of a 39-year-old male. The lesion in the anterior mandible was first diagnosed as radicular cyst because the radiographic findings were ovoid radiolucent lesion with well-defined border. However, careful interpretation revealed a non-corticated border and floating tooth appearance that were the characteristic radiographic features for the differential diagnosis. Early clinical signs of eosinophilic granuloma can occur in the jaw and a bony destructive lesion might be mistaken for periodontitis or an odontogenic cystic lesion; therefore, careful interpretation of radiographs should be emphasized.

  1. Iatrogenic granulomas of the prostate and the urinary bladder

    DEFF Research Database (Denmark)

    Sørensen, Flemming Brandt; Marcussen, N

    1987-01-01

    in the granulomatous lesions and the configurations and anatomical distribution of the granulomas suggest a common pathogenesis by electrocauterization. Immunohistochemically, histiocytic cells were stained by antibodies against lysozyme. In the prostate, no reaction by antibodies against prostate specific antigen......In 1059 patients who had transurethral resections (TUR) of the prostate 8 cases (0.8%) with nonspecific granulomas were found. In another group of 280 patients treated by TUR for tumours of the urinary bladder 5 cases (1.8%) had granulomatous lesions in the resectates. The granulomas were observed...... only in patients with prior surgical trauma of the prostate and the bladder with an incidence of 14% and 6.5%, respectively. None of the patients had systemic diseases. Morphologically, two types of granulomas were observed, foreign-body-type and necrotizing. Carbonization rests were frequently noticed...

  2. Deep Granuloma Annulare Mimicking Inflamed Cysts in a Teenager.

    Science.gov (United States)

    Guo, Emily L; Degesys, Catherine A; Jahan-Tigh, Richard; Chan, Audrey

    2017-07-01

    We describe deep granuloma annulare (DGA) of the forehead mimicking inflamed cysts. Reactive inflammation and sterile purulent drainage may be an underrecognized feature of DGA. © 2017 Wiley Periodicals, Inc.

  3. CT of diffuse pulmonary diseases

    International Nuclear Information System (INIS)

    Itoh, Harumi; Murata, Kiyoshi; Todo, Giro

    1987-01-01

    While the theory of chest radiographic interpretation in diagnosing diffuse pulmonary diseases has not yet been established, X-ray computed tomography (CT), having intrinsic high contrast resolution and improved spatial resolution, has proved to offer important imformation concerning the location and invasion of diffuse pulmonary lesions. This study related to CT-pathologic correlation, focusing on perivascular interstitial space and secondary pulmonary lobule at macroscopic levels. The perivascular interstitial space was thickened as a result of the infiltration of cancer, granulomas, and inflammatory cells. This finding appeared as irregular contour of the blood vessel on CT. Centrilobular nodules were distributed at the tip of the bronchus or pulmonary artery on CT. The distance from the terminal and respiratory bronchioles to the lobular border was 2 to 3 mm. Lobular lesions were delineated as clear margin on CT. Contribution of these CT features to chest radiographic interpretation must await further studies. (Namekawa, K.)

  4. Nasal granuloma gravidarum presenting with recurrent massive epistaxis.

    Science.gov (United States)

    Tantinikorn, Weerachai; Uiprasertkul, Mongkol; Assanasen, Paraya

    2003-05-01

    Nasal granuloma gravidarum is a rare condition associated with pregnancy and minor trauma. This condition presents with a nasal mass with varying degree of bleeding and obstruction. We report a patient with nasal granuloma gravidarum in the third trimester of pregnancy. Surgical excision is the definite treatment for this condition in order to stop the vicious cycle of recurrent massive bleeding. Possible etiology, clinical features and management are discussed.

  5. Microscopic and histochemical manifestations of hyaline cartilage dynamics.

    Science.gov (United States)

    Malinin, G I; Malinin, T I

    1999-01-01

    Structure and function of hyaline cartilages has been the focus of many correlative studies for over a hundred years. Much of what is known regarding dynamics and function of cartilage constituents has been derived or inferred from biochemical and electron microscopic investigations. Here we show that in conjunction with ultrastructural, and high-magnification transmission light and polarization microscopy, the well-developed histochemical methods are indispensable for the analysis of cartilage dynamics. Microscopically demonstrable aspects of cartilage dynamics include, but are not limited to, formation of the intracellular liquid crystals, phase transitions of the extracellular matrix and tubular connections between chondrocytes. The role of the interchondrocytic liquid crystals is considered in terms of the tensegrity hypothesis and non-apoptotic cell death. Phase transitions of the extracellular matrix are discussed in terms of self-alignment of chondrons, matrix guidance pathways and cartilage growth in the absence of mitosis. The possible role of nonenzymatic glycation reactions in cartilage dynamics is also reviewed.

  6. Brief report: reconstruction of joint hyaline cartilage by autologous progenitor cells derived from ear elastic cartilage.

    Science.gov (United States)

    Mizuno, Mitsuru; Kobayashi, Shinji; Takebe, Takanori; Kan, Hiroomi; Yabuki, Yuichiro; Matsuzaki, Takahisa; Yoshikawa, Hiroshi Y; Nakabayashi, Seiichiro; Ik, Lee Jeong; Maegawa, Jiro; Taniguchi, Hideki

    2014-03-01

    In healthy joints, hyaline cartilage covering the joint surfaces of bones provides cushioning due to its unique mechanical properties. However, because of its limited regenerative capacity, age- and sports-related injuries to this tissue may lead to degenerative arthropathies, prompting researchers to investigate a variety of cell sources. We recently succeeded in isolating human cartilage progenitor cells from ear elastic cartilage. Human cartilage progenitor cells have high chondrogenic and proliferative potential to form elastic cartilage with long-term tissue maintenance. However, it is unknown whether ear-derived cartilage progenitor cells can be used to reconstruct hyaline cartilage, which has different mechanical and histological properties from elastic cartilage. In our efforts to develop foundational technologies for joint hyaline cartilage repair and reconstruction, we conducted this study to obtain an answer to this question. We created an experimental canine model of knee joint cartilage damage, transplanted ear-derived autologous cartilage progenitor cells. The reconstructed cartilage was rich in proteoglycans and showed unique histological characteristics similar to joint hyaline cartilage. In addition, mechanical properties of the reconstructed tissues were higher than those of ear cartilage and equal to those of joint hyaline cartilage. This study suggested that joint hyaline cartilage was reconstructed from ear-derived cartilage progenitor cells. It also demonstrated that ear-derived cartilage progenitor cells, which can be harvested by a minimally invasive method, would be useful for reconstructing joint hyaline cartilage in patients with degenerative arthropathies. © AlphaMed Press.

  7. 1. 5 MRT of the hyaline articular cartilage of the knee joint

    Energy Technology Data Exchange (ETDEWEB)

    Adam, G.; Bohndorf, K.; Krasny, R.; Guenther, R.W.; Prescher, A.

    1988-06-01

    MRI is a new method for imaging the knee joint. There is still some uncertainty regarding the extent and the signal from hyaline articular cartilage. MRI images were therefore compared with anatomical and histological preparations of the knee joint and the difference between MRI and the anatomical sections have been determined. It was shown that demonstration of hyaline cartilage was obscured by an artifact. Further investigations are required to determine the cause of this artifact and to achieve accurate imaging of hyaline cartilage by MRI.

  8. Peripheral giant cell granuloma: A review of 123 cases

    Directory of Open Access Journals (Sweden)

    Niloofar Shadman

    2009-01-01

    Full Text Available Background: Peripheral giant cell granuloma is one of the reactive hyperplastic lesions of the oral cavity, which originates from the periosteum or periodontal membrane following local irritation or chronic trauma. The purpose of this study was to present the clinical characteristics of peripheral gi-ant cell granuloma in a group of Iranian population. Methods: A series of 123 consecutive confirmed cases of peripheral giant cell granuloma after biopsy were evaluated. Age, sex, anatomic location, consistency, etiologic factor, pain and bleeding history, color, surface texture, and pedicle situation were recorded and were analyzed by chi-square test and values were considered to be significant if P < 0.05. Results: Age ranged from 6 to 75 years (mean 33 years. Women affected more than men (M/F 1:1.1. Peripheral giant cell granuloma was seen in the mandible more than in the maxilla and in the anterior region more than in the posterior region. In most cases, lesions were pink, pedunculated and had non-ulcerated surface. In less than half of the cases, there was no history of bleeding and also pain was rarely reported. Calculus was the most common etiologic factor. Conclusion: The results confirmed that the clinical features of peripheral giant cell granuloma in a group of Iranian population are almost similar to those reported by other investigators.

  9. Using Periapical Radiography to Differentiate Periapical Granuloma and Radicular Cysts

    Directory of Open Access Journals (Sweden)

    Farhadi

    2016-06-01

    Full Text Available Background The distinction between radicular cysts and apical granulomas is important in treatment decision. Objectives The current study aimed to differentiate these two lesions based on radiography images. Patients and Methods The material consisted of 138 radiographs obtained using Kodak E -speed, in patients aged 29 to 47, divided into two groups: 109 granulomas and 29 radicular cysts. Size of radiography images was measured; the tooth then was extracted and examined in pathologist lab. The results were analyzed by SPSS.15 and ROC curve was created to find cut-off point to differentiate periapical granuloma and radicular cysts. Results Average size of radiography in periapical granuloma was 7.4 mm and for a radicular cyst was 11.1 mm. Cut-off point was 8.2 mm and the area under curve (AUC was 0.63. Also, the tests were 83% sensitive and 79% specific. Conclusions Based on 8.2 mm cut-off point could differentiate 83% periapical granulomas and 79% radicular cysts from radiography images.

  10. Joint immobilization inhibits spontaneous hyaline cartilage regeneration induced by a novel double-network gel implantation.

    Science.gov (United States)

    Arakaki, Kazunobu; Kitamura, Nobuto; Kurokawa, Takayuki; Onodera, Shin; Kanaya, Fuminori; Gong, Jian-Ping; Yasuda, Kazunori

    2011-02-01

    We have recently discovered that spontaneous hyaline cartilage regeneration can be induced in an osteochondral defect in the rabbit, when we implant a novel double-network (DN) gel plug at the bottom of the defect. To clarify whether joint immobilization inhibits the spontaneous hyaline cartilage regeneration, we conducted this study with 20 rabbits. At 4 or 12 weeks after surgery, the defect in the mobile knees was filled with a sufficient volume of the hyaline cartilage tissue rich in proteoglycan and type-2 collagen, while no cartilage tissues were observed in the defect in the immobilized knees. Type-2 collagen, Aggrecan, and SOX9 mRNAs were expressed only in the mobile knees at each period. This study demonstrated that joint immobilization significantly inhibits the spontaneous hyaline cartilage regeneration induced by the DN gel implantation. This fact suggested that the mechanical environment is one of the significant factors to induce this phenomenon.

  11. Giant pyogenic granuloma of the thigh: a case report

    Directory of Open Access Journals (Sweden)

    Nthumba Peter M

    2008-03-01

    Full Text Available Abstract Introduction Pyogenic granuloma or lobular capillary hemangioma remains an etiopathological enigma, with trauma, inflammatory and infectious agents being the commonest suspected causative agents. These lesions affect mucous membranes of the upper aero-digestive tract, and skin. HIV patients diagnosed with pyogenic granuloma present with multiple lesions, caused by Bartonella spp. Case presentation A 28-year-old woman presented with a solitary large tumor on a skin graft donor site on her left thigh. On excision and histological examination the tumor was found to be a lobular capillary hemangioma (pyogenic granuloma. Further investigation in search of a possible explanation for this unusual presentation revealed HIV infection as the underlying cause. Conclusion This report underscores the fact that the full spectrum of presentation of HIV infection is still unknown. Unusual or unexpected presentations should arouse suspicion of underlying immunosuppression, especially in HIV endemic areas.

  12. X-ray and CT findings of costal eosinophilic granuloma

    International Nuclear Information System (INIS)

    Tu Zhanhai; Lin Zhengyu; Chen Yiguang

    2010-01-01

    Objective: To study the X-ray and CT features of costal eosinophilic granuloma for a better understanding. Methods: Eight patients with costal eosinophilic granuloma proved by surgery or biopsy were analyzed retrospectively. All patients had X-ray plain film, 6 patients had CT examination, including a case of enhanced CT scan. Results: All 8 lesions were solitary. Six lesions were in the anterior rib and 2 in the posterior rib. On X-ray, all case showed single cavity and oval lesion with clear boundary. On CT images, 5 lesions demonstrated expansile destruction of bone with cortical bone thinning, and 3 were osteolystic destruction with soft tissue mass around. On the patient with enhanced CT scan, the lesions showed a moderate and uniform enhancement. Conclusion: The X-ray and CT findings of costal eosinophilic granuloma are characteristic. (authors)

  13. The imaging diagnosis of costal solitary eosinophilic granuloma

    International Nuclear Information System (INIS)

    Cui Fa; Feng Shiting

    2007-01-01

    Objective: To study the imaging features of costal eosinophilic granuloma so as to improve diagnosis accuracy of the disease. Methods: The clinical and imaging materials of 6 patients with costal solitary eosinophilic granuloma which were proved by surgery or histopathology were analyzed retrospectively. X-ray plain films were performed in all the cases, CT in 3 cases, 2 cases were received CT plain scan and I case received both CT plain scan and enhanced CT scan. Results: 4 cases of them located in the anterior ribs. All the lesions were round-like and 5 were single cavity and 1 was multiple cavities. 3 of them were expansile destruction and 3 were cystic destruction. Soft tissue mass around the lesion was identified. Conclusion: X-ray plain films integrating CT play an important role in diagnosis and differential diagnosis of the costal eosinophilic granuloma. (authors)

  14. Case report 342: Eosinophilic granuloma of the right iliac wing

    International Nuclear Information System (INIS)

    Schlesinger, A.E.; Glass, R.B.J.; Fernbach, S.K.; Young, S.

    1986-01-01

    In summary, this case demonstrates that eosinophilic granuloma may present with findings on CT usually associated with aggressive malignant lesions, while plain films may show the same lesion to have the unequivocal appearance of a benign lesion. It is important, therefore, that eosinophilic granuloma be considered in the differential diagnosis of solitary bone lesions with extraosseous extension, extensive destruction of the cortex and associated periosteal reaction. A local biopsy, as opposed to wide excision, should be performed for diagnosis, prior to any therapy. Of at least equal significance, it is obvious from this case that plain films in many instances still maintain their importance and with few exceptions should be obtained prior to the CT study. In this instance the diagnosis of a benign disorder and even the specific diagnoses of eosinophilic, granuloma was suggested with confidence because of the plain films. (orig.)

  15. Hyaline articular cartilage dissected by papain: light and scanning electron microscopy and micromechanical studies.

    OpenAIRE

    O'Connor, P; Brereton, J D; Gardner, D L

    1984-01-01

    Papain was used to digest the hyaline femoral condylar cartilages of 30 adult Wistar rats. Matrix proteoglycan degradation was assessed by the light microscopy of paraffin sections stained with toluidine blue. The extent of surface structural change was estimated by scanning electron microscopy, and the structural integrity of the hyaline cartilage tested by the controlled impact of a sharp pin. The results demonstrated an early loss of cartilage metachromasia, increasing with time of papain ...

  16. Foreign Body Granulomas after the Use of Dermal Fillers: Pathophysiology, Clinical Appearance, Histologic Features, and Treatment

    Directory of Open Access Journals (Sweden)

    Jeong Min Lee

    2015-03-01

    Full Text Available A foreign body granuloma is a non-allergic chronic inflammatory reaction that is mainly composed of multinucleated giant cells. Foreign body granulomas may occur after the administration of any dermal filler. Factors such as the volume of the injection, impurities present in the fillers, and the physical properties of fillers affect granuloma formation. The formation of granulomas involves five phases: protein adsorption, macrophage adhesion, macrophage fusion, and crosstalk. The clinical and pathologic features of granulomas vary depending on the type of filler that causes them. Foreign body granulomas can be treated effectively with intralesional corticosteroid injections. Surgical excisions of granulomas tend to be incomplete because granulomas have ill-defined borders and moreover, surgical excisions may leave scars and deformities.

  17. Minimally Invasive Approach to Eliminate Pyogenic Granuloma: A Case Report

    Directory of Open Access Journals (Sweden)

    B. Chandrashekar

    2012-01-01

    Full Text Available Pyogenic granuloma is one of the inflammatory hyperplasia seen in the oral cavity. The term is a misnomer because it is not related to infection and arises in response to various stimuli such as low-grade local irritation, traumatic injury, or hormonal factors. It is most commonly seen in females in their second decade of life due to vascular effects of hormones. Although excisional surgery is the treatment of choice for it, this paper presents the safest and most minimally invasive procedure for the regression of pyogenic granuloma.

  18. Patch Type Granuloma Annulare Imitating Cutaneous T-Cell Lymphoma

    Directory of Open Access Journals (Sweden)

    Şeval Doğruk Kaçar

    2015-03-01

    Full Text Available Granuloma annulare (GA is a benign inflammatory skin disease with distinct clinical and histopathological findings. Patch type GA is described with erythematous patches beyond the classical clinical appearance and an interstitial pattern is observed without histopathologically granulomas with disseminated histiocytes among collagen bundles and vessels. Here we report 46 year old woman diagnosed as patch type GA after a punch biopsy performed from the annular bordered patches in belly area, which is a classical area for mycosis fungoides (MF evolution, and lesions increasingly spreading out within a 2 year period.

  19. A severe transmissible Majocchi's granuloma in an immunocompetent returned traveler

    Directory of Open Access Journals (Sweden)

    James G. Gallo

    2017-12-01

    Full Text Available Severe dermatophyte infection is rare in immunocompetent adults. Recently cases have been described in travelers returning from South East Asia (Luchsinger et al., 2015 [1]. These may be sexually transmitted and can have permanent sequelae. We describe the first reported case of Majocchi's granuloma (MG in an Australian returned traveler and its subsequent transmission via sexual contact. Both patients were successfully treated with systemic antifungals. MG should be considered in patients with severe rash after travel to South East Asia. Keywords: Trichophyton interdigitale, Majocchi's granuloma, Dermatophyte infection, Tinea corporis

  20. Extensive FDG uptake and its modification with corticosteroid in a granuloma rat model: an experimental study for differentiating granuloma from tumors

    International Nuclear Information System (INIS)

    Zhao, Songji; Takei, Toshiki; Zhao, Yan; Tamaki, Nagara; Kuge, Yuji; Kohanawa, Masashi; Takahashi, Toshiyuki; Kawashima, Hidekazu; Temma, Takashi; Seki, Koh-ichi

    2007-01-01

    Increased 18 F-fluorodeoxyglucose (FDG) uptake in inflammatory lesions, particularly in granulomatous inflammation (e.g., sarcoidosis), makes it difficult to differentiate malignant tumors from benign lesions and is the main source of false-positive FDG-PET findings in oncology. Here, we developed a rat granuloma model and examined FDG uptake in the granuloma. The effects of corticosteroid on FDG uptake in the granuloma were compared with those in a malignant tumor. Rats were inoculated with Mycobacterium bovis bacillus Calmette-Guerin (BCG) or allogenic hepatoma cells, and subdivided into control and pretreated (methylprednisolone acetate, 8 mg/kg i.m.) groups. Radioactivity in tissues was determined 1 h after the FDG injection. FDG-PET was performed in rats bearing BCG granulomas or tumors before and after prednisolone treatment. Mature epithelioid cell granuloma-formation and massive lymphocyte-infiltration were observed in the control group of granuloma, histologically similar to sarcoidosis. The mean FDG uptake in the granuloma was comparable to that in the hepatoma. Prednisolone reduced epithelioid cell granuloma-formation and lymphocyte-infiltration. Prednisolone significantly decreased the level of FDG uptake in the granuloma (52% of control), but not in the hepatoma. The FDG uptake levels in the granulomas and tumors were clearly imaged with PET. We developed an intramuscular granuloma rat model that showed a high FDG uptake comparable to that of the tumor. The effect of prednisolone pretreatment on FDG uptake was greater in the granuloma than in the tumor. These results suggest that BCG-induced granuloma may be a valuable model and may provide a biological basis for FDG studies. (orig.)

  1. Pleomorphic Hyalinizing Angiectatic Tumor Arising in the Hand

    Science.gov (United States)

    Kane, Patrick M.; Gaspar, Michael P.; Whiting, Benjamin B.; Culp, Randall W.

    2016-01-01

    Background: Background: Pleomorphic hyalinizing angiectatic tumors (PHATs) are extremely rare, non-metastasizing tumors of uncertain origin that are typically seen in the lower extremities. To date, it is estimated that less than 100 cases have been reported worldwide since first described in 1996. Methods: The case of a 35-year-old male with a several-year history of a dorsal hand mass is presented. Although the patient was initially asymptomatic, in the months prior to presentation, the patient complained of pain with power grasp and direct pressure over the mass. The patient underwent uncomplicated surgical excision, during which the mass was noted to be adherent to the underlying extensor tendons. Results: Immunopathology confirmed the mass to be PHAT. We believe this is the first documented case of this rare tumor occurring in the hand. Conclusions: History and epidemiology of PHAT are reviewed. Then, in the context of the presented case, pre-operative evaluation, surgical management, pathologic findings and post-operative follow-up are all discussed. PMID:27698646

  2. X-ray CT evaluation of pulmonary involvements of sarcoidosis

    International Nuclear Information System (INIS)

    Nishimura, Koichi; Izumi, Takateru; Kitaichi, Masanori

    1987-01-01

    We evaluated high resolution CT in 60 patients with histologically diagnosed pulmonary sarcoidosis and, also, studied the relationship between CT and findings in open lung biopsy specimens in 2 cases. The CT findings were as follows: (1) thickening of bronchial wall shadows (27 out of 60 cases, 45.0 %), (2) irregular enlargement of pulmonary vascular shadows (39 cases, 65.0 %), (3) small or large nodular shadows (24 cases, 40.0 %), (4) local volume loss (14 cases, 23.3 %), (5) slightly increased density of localized lung field areas (24 cases, 40.0 %), (6) pleural or subpleural involvement (27 cases, 45.0 %), (7) lymph node enlargement (59 cases, 98.3 %). X-ray CT in 7 patients revealed no evidence of lung field involvement in patients with histologicall confirmed epithelioid cell granuloma in transbronchial lung biopsy specimens. Lesions located within vessels or in the vascular wall, perivascular sheath or alveoli surrounding blood vessels might cause pulmonary vascular shadows to appear swollen on CT. In a comparative study, we found irregular dilatation of pulmonary vascular shadows corresponding to granulomas in the connective tissue sheath of blood vessels. Also, thickening of bronchial wall shadows corresponded to granulomas in and around the bronchial wall. From the point of histopathological view epithelioid cell granulomas in the bronchovascular sheath were most marked in sarcoidosis, and they apperaed on CT as an irregular enlargement of pulmonary vascular shadows and thickening of the bronchial wall. On the other hand, we reported that collapse of alveoli and fibrosis surrounding blood vessels could cause irregular enlargement of pulmonary vascular shadows on CT in idiopathic pulmonary fibrosis (IPF). Such shadows were seen on CT in both sarcoidosis and IPF but the mechanism of their appearance differed. (J.P.N.)

  3. Pulmonary edema

    Science.gov (United States)

    ... congestion; Lung water; Pulmonary congestion; Heart failure - pulmonary edema ... Pulmonary edema is often caused by congestive heart failure . When the heart is not able to pump efficiently, blood ...

  4. Sperm cell granuloma in a gobbler ( Meleagris Gallopavo ) | Ajayi ...

    African Journals Online (AJOL)

    Microscopically, there was severe diffuse testicular degeneration and necrosis of the germinal epithelial cells, extravasation of spermatozoa into the epididymal interstitium, inciting a granulomatous reaction with arteritis. Based on these findings, sperm cell granuloma was diagnosed. This is probably the first reported case ...

  5. Cutaneous Silicone Granuloma Mimicking Breast Cancer after Ruptured Breast Implant

    Directory of Open Access Journals (Sweden)

    Waseem Asim Ghulam El-Charnoubi

    2011-01-01

    Full Text Available Cutaneous manifestations due to migration of silicone from ruptured implants are rare. Migrated silicone with cutaneous involvement has been found in the chest wall, abdominal wall, and lower extremities. We describe a case of cutaneous silicone granuloma in the breast exhibiting unusual growth mimicking breast cancer after a ruptured implant.

  6. Localized granuloma annulare and autoimmune thyroiditis in a ...

    African Journals Online (AJOL)

    The association of granuloma annulare (GA) and autoimmune thyroiditis has been documented in the literature in 13 previous cases. However, the pathogenesis of GA remains obscure. Possible pathogenetic factors suggested include: humoral and delayed type hypersensitivity, vascular damage, metabolic disorder, or, ...

  7. Eosinophilic granuloma in jaw bone: a pare pediatric case report ...

    African Journals Online (AJOL)

    Background: Eosinophilic granuloma (EG), one of the three clinical forms of Langerhans cell histiocytosis (LCH), is a benign inflammatory reaction to an unknown etiologic agent. It most commonly occurs in children and young adults. The most frequently involved bones are the skull, the ribs and the femurs. Alongside the ...

  8. Oral pyogenic granuloma: a epidemiologic study of 191 cases

    Directory of Open Access Journals (Sweden)

    Thiago de Santana SANTOS

    2008-01-01

    Full Text Available Objectives: To evaluate the prevalence of pyogenic granuloma and compare the data obtained with those of other reports in the worldliterature. Methods: The study material was surveyed from the records of patients with diagnosis of oral pyogenic granuloma, at the Oral Pathology Laboratory of the School of Dentistry of the University of Pernambuco, in the period from January 1992 to March 2007 (15 years. The following indicators were analyzed: gender, age group, race, anatomic location, diameter of lesions and presence of symptomatology.Results: Among the 5007 records in the laboratory, 3.81% corresponded to lesions diagnosed as oral pyogenic granuloma, in which 19.9% of the patients were in the second decade of life, 40.1% were white, the gingiva was the most affected location (77.9% and lesion of smaller diameter (0.1 to 2 cm were those most observed at the initial diagnosis. Conclusion: The clinical-pathological characteristics of oral pyogenic granuloma in the studied population are similar to those of other studies in the literature

  9. Aluminium allergy and granulomas induced by vaccinations for children

    DEFF Research Database (Denmark)

    Andersen, Rosa Marie O; Zachariae, Claus; Johansen, Jeanne Duus

    2014-01-01

    Vaccination with aluminium-adsorbed vaccines can induce aluminium allergy with persistent itching subcutaneous nodules at the injection site - vaccination granulomas. In this article we give an overview of childhood aluminium-adsorbed vaccines available in Denmark. Through literature studies we...

  10. The Histopathological Spectrum of Pyogenic Granuloma: A Case Series

    Directory of Open Access Journals (Sweden)

    Vinay Marla

    2016-01-01

    Full Text Available Background. Pyogenic granuloma is a reactive tumor-like lesion commonly affecting the oral cavity. These lesions usually appear as localized solitary nodule with a sessile or pedunculated base and colour varying from red, purplish, or pink, depending on the vascularity of the lesion. Pyogenic granuloma shows predilection for gingiva and is usually slow growing, but at times it shows rapid growth. The natural course of this lesion can be categorized into three distinct phases, namely, (i cellular phase, (ii capillary phase/vascular phase, and (iii involutionary phase. Histopathologically, pyogenic granuloma is classified into lobular capillary hemangioma (LCH and non-lobular capillary hemangioma (non-LCH. Case Presentation. In this series, four cases (varied age groups and both genders of pyogenic granuloma showing varying histopathological presentation in relation to its clinical course have been described. The lesion in its early phase reveals diffuse endothelial cells, with few budding into capillaries. Among the capillary phase, the LCH type shows numerous blood vessels organized into lobular aggregates whereas the non-LCH type does not show any such organization and resembles granulation tissue. The involutionary phase shows healing of the lesion and is characterized by extensive fibrosis in the connective tissue. Conclusion. In conclusion, knowledge of the various histopathological presentation of this lesion is necessary for proper identification.

  11. Strict Anatomical Colocalization of Vitiligo and Elastolytic Granulomas

    Directory of Open Access Journals (Sweden)

    N. Merino de Paz

    2010-02-01

    Full Text Available Vitiligo is the most common depigmenting disorder, with a worldwide occurrence of 0.1–2% in the general population. Multiple conditions have been described colocalized in vitiligo patches, like psoriasis or lichen planus. However, actinic granuloma has not been described in association with vitiligo lesions so far.

  12. Study of differential properties of fibrochondrocytes and hyaline chondrocytes in growing rabbits.

    Science.gov (United States)

    Huang, L; Li, M; Li, H; Yang, C; Cai, X

    2015-02-01

    We aimed to build a culture model of chondrocytes in vitro, and to study the differential properties between fibrochondrocytes and hyaline chondrocytes. Histological sections were stained with haematoxylin and eosin so that we could analyse the histological structure of the fibrocartilage and hyaline cartilage. Condylar fibrochondrocytes and femoral hyaline chondrocytes were cultured from four, 4-week-old, New Zealand white rabbits. The production of COL2A1, COL1OA1, SOX9 and aggrecan was detected by real time-q polymerase chain reaction (RT-qPCR) and immunoblotting and the differences between them were compared statistically. Histological structures obviously differed between fibrocartilage and hyaline cartilage. COL2A1 and SOX9 were highly expressed within cell passage 2 (P2) of both fibrochondrocytes and hyaline chondrocytes, and reduced significantly after cell passage 4 (P4). The mRNA expressions of COL2A1 (p=0.05), COL10A1 (p=0.04), SOX9 (p=0.03), and aggrecan (p=0.04) were significantly higher in hyaline chondrocytes than in fibrochondrocytes, whereas the expression of COL1A1 (p=0.02) was the opposite. Immunoblotting showed similar results. We have built a simple and effective culture model of chondrocytes in vitro, and the P2 of chondrocytes is recommended for further studies. Condylar fibrocartilage and femoral hyaline cartilage have unique biological properties, and the regulatory mechanisms of endochondral ossification for the condyle should be studied independently in the future. Copyright © 2014 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  13. Coblation of suprastomal granulomas in tracheostomy-dependent children.

    Science.gov (United States)

    Brown, C Scott; Ryan, Marisa A; Ramprasad, Vaibhav H; Karas, Anatoli F; Raynor, Eileen M

    2017-05-01

    Suprastomal granulomas pose a persistent challenge for tracheostomy-dependent children. They can limit phonation, cause difficulty with tracheostomy tube changes and prevent decannulation. We describe the use of the coblator for radiofrequency plasma ablation of suprastomal granulomas in five consecutive children from September 2012 to January 2016. Retrospective case series at a tertiary medical center. The suprastomal granuloma could be removed with the coblator in all 5 cases. Three were removed entirely endoscopically and 2 required additional external approach through the tracheal stoma for complete removal. There were no intraoperative or postoperative complications. One patient was subsequently decannulated and 2 patients have improved tolerance of their speaking valves. Two patients remain ventilator dependent, but their bleeding and difficulty with tracheostomy tube changes resolved. Three of the patients have had subsequent re-evaluation with bronchoscopy, demonstrating resolution or markedly decreased size of the granuloma. This technique is time efficient, simple and minimizes risks associated with other techniques. The relatively low temperature and use of continuous saline irrigation with the coblator device minimizes the risk of airway fires. Additionally, the risk of hypoxia from keeping a low fractional inspiratory oxygen level (FIO 2 ) to prevent fire is avoided. The concurrent suction in the device decreases blood and tissue displacement into the distal airway. Coblation can be used safely and effectively with an endoscopic or external approach to remove suprastomal granulomas in tracheostomy-dependent children. More studies that are larger and have longer follow-up are needed to evaluate the use of this technique. Copyright © 2017 Elsevier B.V. All rights reserved.

  14. Experimental Granulomatous Pulmonary Nocardiosis in BALB/C Mice

    Science.gov (United States)

    Mifuji Lira, Roque M.; Limón Flores, Alberto Yairh; Salinas Carmona, Mario César

    2016-01-01

    Pulmonary nocardiosis is a granulomatous disease with high mortality that affects both immunosuppressed and immunocompetent patients. The mechanisms leading to the establishment and progression of the infection are currently unknown. An animal model to study these mechanisms is sorely needed. We report the first in vivo model of granulomatous pulmonary nocardiosis that closely resembles human pathology. BALB/c mice infected intranasally with two different doses of GFP-expressing Nocardia brasiliensis ATCC700358 (NbGFP), develop weight loss and pulmonary granulomas. Mice infected with 109 CFUs progressed towards death within a week while mice infected with 108 CFUs died after five to six months. Histological examination of the lungs revealed that both the higher and lower doses of NbGFP induced granulomas with NbGFP clearly identifiable at the center of the lesions. Mice exposed to 108 CFUs and subsequently to 109 CFUs were not protected against disease severity but had less granulomas suggesting some degree of protection. Attempts to identify a cellular target for the infection were unsuccessful but we found that bacterial microcolonies in the suspension used to infect mice were responsible for the establishment of the disease. Small microcolonies of NbGFP, incompatible with nocardial doubling times starting from unicellular organisms, were identified in the lung as early as six hours after infection. Mice infected with highly purified unicellular preparations of NbGFP did not develop granulomas despite showing weight loss. Finally, intranasal delivery of nocardial microcolonies was enough for mice to develop granulomas with minimal weight loss. Taken together these results show that Nocardia brasiliensis microcolonies are both necessary and sufficient for the development of granulomatous pulmonary nocardiosis in mice. PMID:27303806

  15. Experimental Granulomatous Pulmonary Nocardiosis in BALB/C Mice.

    Directory of Open Access Journals (Sweden)

    Roque M Mifuji Lira

    Full Text Available Pulmonary nocardiosis is a granulomatous disease with high mortality that affects both immunosuppressed and immunocompetent patients. The mechanisms leading to the establishment and progression of the infection are currently unknown. An animal model to study these mechanisms is sorely needed. We report the first in vivo model of granulomatous pulmonary nocardiosis that closely resembles human pathology. BALB/c mice infected intranasally with two different doses of GFP-expressing Nocardia brasiliensis ATCC700358 (NbGFP, develop weight loss and pulmonary granulomas. Mice infected with 109 CFUs progressed towards death within a week while mice infected with 108 CFUs died after five to six months. Histological examination of the lungs revealed that both the higher and lower doses of NbGFP induced granulomas with NbGFP clearly identifiable at the center of the lesions. Mice exposed to 108 CFUs and subsequently to 109 CFUs were not protected against disease severity but had less granulomas suggesting some degree of protection. Attempts to identify a cellular target for the infection were unsuccessful but we found that bacterial microcolonies in the suspension used to infect mice were responsible for the establishment of the disease. Small microcolonies of NbGFP, incompatible with nocardial doubling times starting from unicellular organisms, were identified in the lung as early as six hours after infection. Mice infected with highly purified unicellular preparations of NbGFP did not develop granulomas despite showing weight loss. Finally, intranasal delivery of nocardial microcolonies was enough for mice to develop granulomas with minimal weight loss. Taken together these results show that Nocardia brasiliensis microcolonies are both necessary and sufficient for the development of granulomatous pulmonary nocardiosis in mice.

  16. Role of radiotherapy in the treatment of granuloma gangraenescens (lethal midline granuloma)

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    Sack, H; Horch, H H; Schaefer, H E; Wustrow, F

    1984-02-01

    The granuloma gangraenescens in the oral, maxillary and facial region is a rare disease. It is a destroying process in the region of palate, nose, paranasal sinuses, cheeks and orbit with characteristic signs of granulomatosis, infection and malignancy. The disease shows often a lethal development with cachexia or sepsis. Besides local inflammations and tumors, the granulomatosis of Wegener, and the so-called necrotizing sialometaplasia are above all to be excluded by differential diagnosis. Five cases are presented in order to describe the diagnostic and therapeutic problems. In literature, the greatest efficacy is attributed to radiotherapy, however, a detailed definition of the most efficient irradiation conditions cannot be given yet because of the small number of cases. Good long-term results or recoveries can be achieved in 75 to 80% of cases by a relatively high radiation dose of 40 to 50 Gy administered within four to five weeks. During the observation time of two to six years, no one of the five patients treated here only by megavoltage therapy showed a recurrence.

  17. The role of radiotherapy in the treatment of granuloma gangraenescens (lethal midline granuloma)

    International Nuclear Information System (INIS)

    Sack, H.; Horch, H.H.; Schaefer, H.E.; Wustrow, F.

    1984-01-01

    The granuloma gangraenescens in the oral, maxillary and facial region is a rare disease. It is a destroying process in the region of palate, nose, paranasal sinuses, cheeks and orbit with characteristic signs of granulomatosis, infection and malignancy. The disease shows often a lethal development with cachexia or sepsis. Besides local inflammations and tumors, the granulomatosis of Wegener, and the socalled necrotizing sialometaplasia are above all to be excluded by differential diagnosis. Five cases are presented in order to describe the diagnostic and therapeutic problems. In literature, the greatest efficacy is attributed to radiotherapy, however, a detailed definition of the most efficient irradiation conditions cannot be given yet because of the small number of cases. Good long-term results or recoveries can be achieved in 75 to 80% of cases by a relatively high radiation dose of 40 to 50 Gy administered within four to five weeks. During the observation time of two to six years, no one of the five patients treated here only by megavoltage therapy showed a recurrence. (orig.) [de

  18. The value of MDCT in diagnosis of hyaline-vascular Castleman's disease

    International Nuclear Information System (INIS)

    Sun, Xiaoli; Liu, Cheng; Wang, Rengui; Zhu, Xuejun; Gao, Li; Chen, Jiuhong

    2012-01-01

    Purpose: Castleman's disease (CD) is an uncommon entity characterized by a massive growth of lymphoid tissue. There are two types: the hyaline-vascular (HV) type and the plasma cell (PC) type. The purpose of this study was to evaluate the clinical value of multiple detector computed tomography (MDCT) in the diagnosis and planning of treatment for hyaline-vascular CD. Materials and methods: Fifty-two cases of confirmed hyaline-vascular CD were retrospectively reviewed. Unenhanced and contrast-enhanced MDCT scans had been performed in all patients, followed by surgery and pathological analysis of the lesion. Original MDCT transverse and reconstructed images were used for image interpretation. Features of the lesion and its adjacent structures were identified. Results: The lesion was present in the thorax of 24 patients and the abdomen in 28. Obvious features of hyaline-vascular CD (especially feeding vessels and draining veins) and its adjacent structures were demonstrated on 52 patients. Conclusion: On MDCT imaging, original MDCT transverse and reconstructed images provide an excellent tool for diagnosis of hyaline-vascular CD and have high value in the determination of a treatment plan

  19. Magnetic resonance imaging of hyaline cartilage regeneration in neocartilage graft implantation.

    Science.gov (United States)

    Tan, C F; Ng, K K; Ng, S H; Cheung, Y C

    2003-12-01

    The purpose of this study was to investigate the regenerative potential of hyaline cartilage in a neocartilage graft implant with the aid of MR cartilage imaging using a rabbit model. Surgical osteochondral defects were created in the femoral condyles of 30 mature New Zealand rabbits. The findings of neocartilage in autologous cartilage grafts packed into osteochondral defects were compared with control group of no implant to the osteochondral defect. The outcome of the implantations was correlated with histologic and MR cartilage imaging findings over a 3-month interval. Neocartilage grafts packed into osteochondral defects showed regeneration of hyaline cartilage at the outer layer of the implant using MR cartilage imaging. Fibrosis of fibrocartilage developed at the outer layer of the autologous cartilage graft together with an inflammatory reaction within the osteochondral defect. This animal study provides evidence of the regenerative ability of hyaline cartilage in neocartilage transplants to repair articular cartilage.

  20. Treatment of deep hyalin cartilage defects with autologous perichondrial grafts.

    Science.gov (United States)

    Bruns, J; Steinhagen, J

    2003-07-01

    Perichondrial transplantation was performed in 29 patients suffering from a deep chondral lesion with different etiologies. Only those patients with a cartilage lesion in the knee joint were included. Patients were initially and postoperatively examined using the Lysholm- and HSS-Score. In most of the patients (20/29) trauma and the recurrence of osteochondrosis dissecans (6/29) were the cause of the cartilage lesion. Most often the medial femoral condyle (19/29) and, secondly, the lateral femoral condyle (5/29) were involved. In six patients additional therapeutic measures (ACL-plasty, n = 2; high tibial osteotomy because of varus mal-alignment, n = 4) had to be adopted. Follow-up examination was possible in 26/29 patients after a minimum postoperative period of 12 months. All patients exhibited a distinct and significant increase in both the Lysholm and the HSS-score. A follow-up after a minimum of 24 months was possible in 13/29 patients. Even these patients exhibited a distinct and significant improvement. Multiple follow-up examinations in 9/29 patients demonstrated maintenance of the first postoperative results obtained after one postoperative year for a maximum of 49 months in most of the patients. Only in one female patient, implantation of a semi-constrained total knee replacement was necessary because of osteoarthrosis resulting from crystal arthropathy (chondrocalcinosis). It was possible to obtain biopsies from three patients at the time osteosynthetic material was removed. In all cases hyaline-like cartilage was histologically observed. In the treatment of selected patients suffering from a circumscript cartilaginous lesion resulting from trauma or the recurrence of osteochondritis dissecans with a concomitant cartilage lesion but without major signs of osteoarthritis, perichondrial grafting can achieve acceptable clinical results, after a short follow-up period. In order to achieve satisfying results a good selection of patients and additional

  1. Hyaline cartilage cells outperform mandibular condylar cartilage cells in a TMJ fibrocartilage tissue engineering application.

    Science.gov (United States)

    Wang, L; Lazebnik, M; Detamore, M S

    2009-03-01

    To compare temporomandibular joint (TMJ) condylar cartilage cells in vitro to hyaline cartilage cells cultured in a three-dimensional (3D) environment for tissue engineering of mandibular condylar cartilage. Mandibular condylar cartilage and hyaline cartilage cells were harvested from pigs and cultured for 6 weeks in polyglycolic acid (PGA) scaffolds. Both types of cells were treated with glucosamine sulfate (0.4 mM), insulin-like growth factor-I (IGF-I) (100 ng/ml) and their combination. At weeks 0 and 6, cell number, glycosaminoglycan (GAG) and collagen content were determined, types I and II collagen were visualized by immunohistochemistry and GAGs were visualized by histology. Hyaline cartilage cells produced from half an order to a full order of magnitude more GAGs and collagen than mandibular condylar cartilage cells in 3D culture. IGF-I was a highly effective signal for biosynthesis with hyaline cartilage cells, while glucosamine sulfate decreased cell proliferation and biosynthesis with both types of cells. In vitro culture of TMJ condylar cartilage cells produced a fibrous tissue with predominantly type I collagen, while hyaline cartilage cells formed a fibrocartilage-like tissue with types I and II collagen. The combination of IGF and glucosamine had a synergistic effect on maintaining the phenotype of TMJ condylar cells to generate both types I and II collagen. Given the superior biosynthetic activity by hyaline cartilage cells and the practical surgical limitations of harvesting cells from the TMJ of a patient requiring TMJ reconstruction, cartilage cells from elsewhere in the body may be a potentially better alternative to cells harvested from the TMJ for TMJ tissue engineering. This finding may also apply to other fibrocartilages such as the intervertebral disc and knee meniscus in applications where a mature cartilage cell source is desired.

  2. Autotransplantation of hepatic granulomas into the skin of mice with Schistosoma mansoni infection

    International Nuclear Information System (INIS)

    Nishimura, M.; Epstein, W.L.; Fukuyama, K.

    1982-01-01

    Hepatic egg granulomas of mice infected with Schistosoma mansoni were transplanted into the skin of the same animal and changes occurring to macrophages, eosinophils, and mast cells over time were studied by light and electron microscopy and by autoradiographic techniques. Disappearance of cellular components about the egg granulomas occurred within 1 week; the entire implant became encapsulated by inflammatory cells and stroma. By 3 weeks mononuclear cells and macrophages reorganized the granulomas around the eggs and neutrophils disappeared. Activated macrophages contained both secretory rough endoplasmic reticulum and lysosomal-dense bodies. Granuloma size increased up to 5 weeks after implantation and mast cells and eosinophils tended to migrate into the granulomas. The mast cell index always remained lower than in the original hepatic granulomas, while eosinophils were seen in large numbers. During 3 to 8 weeks after implantation mononuclear cells undergoing DNA synthesis in the granulomas ranged from 2.9-4.8%. Some 3-week-old autotransplants were injected with 3 H-thymidine and biopsied from 1 to 21 days later. Labeled mononuclear cells peaked in the granulomas by 10 days (24%) and the numbers fell off sharply after that. These findings indicate that autologously implanted schistosome egg granulomas can be maintained successfully in the skin for prolonged periods with marked ingress of macrophages and eosinophils. The autoradiographic data suggest the lesions are high turnover granulomas

  3. Similar hyaline-like cartilage repair of osteochondral defects in rabbits using isotropic and anisotropic collagen scaffolds

    NARCIS (Netherlands)

    Mulder, E.L.W. de; Hannink, G.J.; Kuppevelt, T.H. van; Daamen, W.F.; Buma, P.

    2014-01-01

    Lesions in knee joint articular cartilage (AC) have limited repair capacity. Many clinically available treatments induce a fibrous-like cartilage repair instead of hyaline cartilage. To induce hyaline cartilage repair, we hypothesized that type I collagen scaffolds with fibers aligned perpendicular

  4. Quantitative assessment of hyaline cartilage elasticity during optical clearing using optical coherence elastography

    Science.gov (United States)

    Liu, Chih-Hao; Singh, Manmohan; Li, Jiasong; Han, Zhaolong; Wu, Chen; Wang, Shang; Idugboe, Rita; Raghunathan, Raksha; Zakharov, Valery P.; Sobol, Emil N.; Tuchin, Valery V.; Twa, Michael; Larin, Kirill V.

    2015-03-01

    We report the first study on using optical coherence elastography (OCE) to quantitatively monitor the elasticity change of the hyaline cartilage during the optical clearing administrated by glucose solution. The measurement of the elasticity is verified using uniaxial compression test, demonstrating the feasibility of using OCE to quantify the Young's modulus of the cartilage tissue. As the results, we found that the stiffness of the hyaline cartilage increases during the optical clearing of the tissue. This study might be potentially useful for the early detection of osteoarthritis disease.

  5. [Evaluation of the results of surgical treatment of granuloma teleangiectodes].

    Science.gov (United States)

    Bogdanowski, T; Rubisz-Brzezińska, J; Macura-Gina, M; Misiewicz, D

    1990-01-01

    In the clinic of dermatological surgery, I Department of Dermatology Silesian Medical Academy in Katowice 328 patients were treated surgically for granuloma teleangiectodes in the years 1973-1988. Two methods were used: excision of the lesion and curettage with electrocoagulation of the base of the lesion. After excision the wound was closed by approximation of its margins or local plastic procedure (285 cases) and by covering it with a free full-thickness skin graft (3 cases). Curettage and electrocoagulation was used in 43 cases, mainly due to the location of the lesion (in 90% on fingers). After granuloma excision no recurrences were observed, while after curettage and electrocoagulation recurrences developed in 20% of cases.

  6. Diabetes insipidus secondary to sarcoidosis presenting with caseating granuloma

    Science.gov (United States)

    Alam, Taimour; Thomas, Steven

    2011-01-01

    Diabetes insipidus is a rare complication of sarcoid infiltration of the hypothalamic-pituitary region. Non-caseating granuloma formation is typical of sarcoidosis. Anterior and posterior pituitary function may be affected. MRI coupled with endocrinology assessment is the usual method of investigation. A 25-year-old Caucasian male with no significant medical history presented with polyuria and polydipsia. Water deprivation test confirmed diabetes insipidus. CT scanning of the chest confirmed lymphadenopathy. Lymph node biopsy revealed caseating granuloma. Extensive investigation for tuberculosis was negative. The patient was started on intranasal desmopressin and steroids with marked improvement in symptoms. This is the first reported case of neurosarcoidosis with diabetes insipidus and caseation on histology that we are aware of. Differentiating between caseation due to sarcoidosis and tuberculosis on histology is possible by the use of special stains. Return of normal endocrine function is unusual and the patient is likely to require desmopressin therapy for life. PMID:22707619

  7. Systemic Lupus Erythematosus with Hepatosplenic Granuloma: A Rare Case

    Directory of Open Access Journals (Sweden)

    Anju Bharti

    2014-01-01

    Full Text Available Background. Systemic lupus erythematosus (SLE is an autoimmune disease which is known to present with a wide variety of clinical manifestations. Case Report. A 15-year-old male presented with complaints of moderate grade fever and generalized body swelling. There was no history of cough, weight loss, joint pain, oral ulcerations, skin rash, photosensitivity, loss of hair, pain abdomen, jaundice, or any significant illness in the past. Contrast enhanced computerized tomography of the abdomen revealed hypodense lesions in both liver and spleen (without contrast enhancement, suggestive of granulomas along with few retroperitoneal and mesenteric lymph nodes. On the basis of immunological tests and renal biopsy report, SLE with hepatosplenic granulomatosis diagnosis was made. He was given pulse methylprednisolone 500 mg, for 3 days and he showed dramatic improvement clinically. Conclusion. Hepatic and splenic granulomas are not common in SLE, but this should be kept in differential diagnosis.

  8. Connective matrix organization in chronic granulomas of experimental paracoccidioidomycosis.

    Science.gov (United States)

    Kerr, I B; de Oliveira, P C; Lenzi, H L

    1988-07-01

    The histological and ultrastructural aspects of chronic granulomas from rats infected intraperitoneally with Paracoccidioides brasiliensis are described with special emphasis on the composition of the extracellular matrix. The granulomas were structurally arranged in two zones, one central containing fungi, and the other peripheral. The extracellular matrix was composed of collagen types I and III, proteoglycans, glycoprotein, and an undefined amorphous substance. The main cellular population was represented by macrophages, epithelioid cells, and giant cells in the central zone, and fibroblasts in the peripheral zone. The fibrotic process was a critical event in this stage of the infection, and showed a centrifugal direction. This might be provoked by direct stimulus from the fungi or by macrophage-fibroblastic interaction.

  9. Human schistosomiasis mansoni: studies on in vitro granuloma modulation

    Directory of Open Access Journals (Sweden)

    Juçara C. Parra

    1992-01-01

    Full Text Available Infection with Schistosoma mansoni induces humoral and T cell mediated responses and leads to delayed hipersensitivity that results in granulomatous inflamatory disease around the parasite eggs. Regulation of these responses resulting in a reduction in this anti-egg inflamatory disease is appsrently determined by idiotypic repertoires of the patient, associated with genetic background and multiple external factors. We have previously reported on idiotype/anti-idiotype-receptor transactions in clinical human schistosomiasis. These findings support a hypothesis that anti-SEA cross-reactive idiotypes develop in some patients during the course of a chronic infection and participate in regulation of anti-SEA cellular immune responses. We repport here on experiments wich extend those observations to the regulation of granulomatous hypersensitivity measured by an in vitro granuloma model. T cells from chronic intestinal schistosomiasis patients were stimulated in vitro with anti-SEA idiotypes and assayed in an autologous in vitro granuloma assay for modulation of granuloma formation. These anti-SEA idiotype reactive T cells were capable of regulating autologous in vitro granuloma formation. This regulatory activity, initiated with stimulatory anti-SEA idiotypic antibodies, was antigenically specific and was dependent on the present of intact (F(ab'2 immunoglobulin molecules. The ability to elicit this regulatory activity appears to be dose dependent and is more easily demonstrated in chronically infected intestinal patients or SEA sensitized individuals. These data support the hypothesis that anti-SEA cross reactive idiotypes are important in regulating granulomatous hypersensitivy in chronic intestinal schistosomiasis patients and these cross-reactive idiotypes appear to play a major role in cell-cell interactions which result in the regulation of anti-SEA cellular immune responses.

  10. Internal granuloma with perforation – 2 case report

    Directory of Open Access Journals (Sweden)

    Ioana Suciu

    2015-11-01

    Full Text Available Internal resorption was associated with long-term chronic inflammation of the pulp (chronic granulomatous pulpitis. When internal resorption is radiographically confirmed, endodontic treatment becomes a necessity. Vital teeth internal resorption appears radiographically as an oval enlargement of the pulp chamber and root canal with smooth, symmetrical outline. Internal granuloma is assumed to be an effect of the trauma, or pulp inflammation, the ailment is rare, asymptomatic and might progress rapidly, causing perforation.

  11. CENTRAL GIANT CELL GRANULOMA OF THE MANDIBLE: A RARE PRESENTATION

    Directory of Open Access Journals (Sweden)

    Virendra SINGH

    2012-06-01

    Full Text Available Central giant cell granuloma (CGCG is an intra-osseous lesion consisting of cellular fibrosis tissue containing multiple foci of hemorrhage, multinucleated giant cells and trabecules of woven bone. This lesion accounts for less than 7% of all benign jaw tumours. Jaffe considered it as a locally reparative reaction of bone, which can be possibly due to either an inflammatory response, hemorrhage or local trauma. Females are affected more frequently than males. It occurs over a wide age range.It has been reported that this lesion is diagnosed during the first two decades of life in approximately 48% of cases, and 60% of cases are evident before the age of 30. It is considerably more common in the mandible than in the maxilla. Most lesions occur in the molar and premolar area, some of these extending up to the ascending ramus. The presence of giant cell granuloma in the mandibular body area, the entire ramus, condyle and coronoid represents a therapeutic challenge for the oral and maxillofacial surgeons. The aim of this report is to describe an unusual presentation of central giant cell granuloma involving the mandibular body, ramus, condylar and coronoid processes, and to discuss the differentiated diagnosis, the radiographic presentation and the management of this lesion.

  12. Methylation pattern of IFNG in periapical granulomas and radicular cysts.

    Science.gov (United States)

    Campos, Kelma; Gomes, Carolina Cavaliéri; de Fátima Correia-Silva, Jeane; Farias, Lucyana Conceição; Fonseca-Silva, Thiago; Bernardes, Vanessa Fátima; Pereira, Cláudia Maria; Gomez, Ricardo Santiago

    2013-04-01

    Interferon-γ plays an important role in the pathogenesis of periapical lesions, and the methylation of IFNG has been associated with transcriptional inactivation. The purpose of the present study was to investigate IFNG promoter methylation in association with gene transcription and protein levels in periapical granulomas and radicular cysts. Methylation-specific polymerase chain reaction was used to assess the DNA methylation pattern of the IFNG gene in 16 periapical granulomas and 13 radicular cyst samples. The transcription levels of IFNG mRNA were verified by quantitative real-time polymerase chain reaction, and protein expression was evaluated by immunohistochemistry. All the periapical lesion samples exhibited partial or total methylation of the IFNG gene. In addition, an increased methylation profile was found in radicular cysts compared with periapical granulomas. Increased IFNG mRNA expression was observed in the partially methylated periapical lesion samples relative to the samples that were completely methylated. The present study provides the first evidence of the possible impact of IFNG methylation on IFNG transcription in periapical lesions. Copyright © 2013 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  13. Imaginal diagnosis of eosinophilic granuloma of long bones

    International Nuclear Information System (INIS)

    Cui Fa; Cui Minyi

    2006-01-01

    Objective: To analyze the clinical and imaging features of eosinophilic granuloma of long bones so as to improve diagnosis accuracy of the disease. Methods: The clinic materials and imaging findings of 24 patients with eosinophilic granuloma of long bones proved by surgery or histopathology were analyzed retrospectively. All the patients received radiography; CT scan was performed in 6 cases; and MRI was done in 4 cases. Results: Fifteen patients out of 24 were male and 9 were female, with the average age 14. 7 years old. Solitary lesion was found in 22 cases, and multiple bone destruction was noted in 2 cases. There were 14 lesions located in femur; 5 in tibia; 3 in humer; and 2 in fibula. In total 16 lesions involved diaphysis and in 8 cases the metaphysis was invaded. Bone destruction, the changes of the adjacent cortex, periosteal reaction and soft tissue mass or swelling were demonstrated in images obtained. Conclusion: The imaging features in eosinophilic granuloma of long bones are characteristic. Careful and integrative analysis of imaging findings improves diagnosis accuracy of the disease. (authors)

  14. Magnetic resonance tomography (MRT) of the knee joint: Meniscus, cruciate ligaments and hyaline cartilage. Magnetresonanztomographie (MRT) des Kniegelenks: Meniskus, Kreuzbaender und hyaliner Gelenkknorpel

    Energy Technology Data Exchange (ETDEWEB)

    Hodler, J. (Radiologie, Universitaetsspital, Zurich (Switzerland) Orthopaedische Universitaetsklinik Balgrist, Zurich (Switzerland). Radiologische Abt.); Buess, E. (Orthopaedische Universitaetsklinik Balgrist, Zurich (Switzerland)); Rodriguez, M. (Orthopaedische Universitaetsklinik Balgrist, Zurich (Switzerland)); Imhoff, A. (Orthopaedische Universitaetsklinik Balgrist, Zurich (Switzerland))

    1993-08-01

    The use of MRT for diagnosing injury to the meniscus, the cruciate ligaments and hyaline cartilage was evaluated retrospectively in 82 knee joints without any knowledge of operative findings. In 49 cases the results were verified by arthroscopy and in 33 cases by arthrotomy. Sensitivity, specificity and diagnostic accuracy of MRT for meniscus lesions was 73.9%, 96.9%, and 94.6%. Corresponding values for lesions of the anterior cruciate ligament were 88.9%, 96.6%, and 94.7%, and for lesions of the hyaline cartilage 62.6%, 96.1%, and 87.9%, respectively. In addition to its high specificity, MRT proved accurate in excluding lesions of the meniscus (97.1%) of the anterior cruciate ligament (96.6%) and of hyaline cartilage (88.8%). A negative finding on MRT therefore makes the presence of a lesion of the meniscus, cruciate ligaments of cartilage unlikely. In such cases one is justified in delaying the use of arthroscopy or arthrotomy. (orig.)

  15. Pulmonary interstitial emphysema in neonates -reporting of 11 cases

    International Nuclear Information System (INIS)

    Alvares, Beatriz Regina; Santos Mezzacappa, Maria Aparecida dos; Marba, Sergio Tadeu Martins

    1997-01-01

    The present paper relates the radiologic and clinical aspects of pulmonary interstitial emphysema in 11 infants submitted to assisted ventilation. The radiologic diagnosis was made using the classification of Boothroyd and Barson (levels I to III). A prevalence of pulmonary interstitial emphysema of levels II and III was observed in masculine premature infants with hyaline membrane disease and intrauterine pneumonia. Mortality was high and occurred in the infants with advanced levels of the disease. The authors emphasize the importance of early radiologic diagnosis of this condition during the treatment of premature infants submitted to assisted ventilation. (author)

  16. Sarcoid granulomas in the parathyroid gland - a case of dual pathology: hypercalcaemia due to a parathyroid adenoma and coexistent sarcoidosis with granulomas located within the parathyroid adenoma and thyroid gland.

    Science.gov (United States)

    Balasanthiran, Anjali; Sandler, Belinda; Amonoo-Kuofi, Kwamena; Swamy, Rajiv; Kaniyur, Sunil; Kaplan, Felicity

    2010-01-01

    We present a highly unusual and interesting case of coexistent hyperparathyroidism and sarcoidosis leading to hypercalcaemia. A 70 year old female presented with weight loss, constipation and dehydration. Investigations revealed marked hypercalcaemia with a non-suppressed PTH. In view of the degree of hypercalcaemia as well as the unintentional weight loss, investigations for malignancy were conducted -these were negative. Parathyroid imaging was then requested and an adenoma was identified. Surprisingly, surgery revealed the coexistence of a parathyroid adenoma with the unexpected finding of sarcoid granulomas within the parathyroid and thyroid glands. To our knowledge, this is the first such case reported. Further imaging confirmed pulmonary sarcoidosis and a serum ACE was elevated. Serum calcium levels did not respond to parathyroidectomy but eventually fell with steroid therapy.

  17. [Inflammatory granulomas in the pathology of the nervous system. General remarks].

    Science.gov (United States)

    Tommasi, M

    1976-01-01

    The "gliogenic" participation in the edification of granulomas may produce peculiar morphological features especially in the central nervous system, and perhaps more than elsewhere, pseudotumoral features. Moreover, the concept of "granuloma" is perhaps not as well defined as in the other tissues. There are also some still unsolved problems concerning the histogenesis of the cells of the "granuloma". Some examples taken among the different etiologies illustrate these notions.

  18. Congestive cardiomyopathy and endobronchial granulomas as manifestations of Churg-Strauss syndrome.

    Science.gov (United States)

    Alvarez-Sala, R.; Prados, C.; Armada, E.; Del Arco, A.; Villamor, J.

    1995-01-01

    Churg-Strauss syndrome is a systemic vasculitis. Its most frequent complications are heart diseases and asthma. Usually, cardiological manifestations are pericarditis, cardiac failure and myocardial infarction. Endobronchial granulomas identified by bronchoscopy are unusual. We present the case of a man with congestive cardiomyopathy and endobronchial granulomas macroscopically visible at bronchoscopy. After a review of medical literature, we found one case of congestive cardiomyopathy and no cases of endobronchial granulomas observed by bronchoscopy associated with Churg-Strauss syndrome. Images Figure PMID:7644400

  19. Larval nematodes in stomach wall granulomas of smelt Osmerus eperlanus from the German North Sea coast

    OpenAIRE

    Obiekezie, A. I.; Lick, Roland R.; Kerstan, Susanne L.; Möller, Heino

    1992-01-01

    Occurrence of stomach wall granulomas in European smelt was studled at 6 locations along the German North Sea coast. Identification of larval nematodes inhabiting these granulomas is provided for the first time. Three species, isolated by pepsin-HC1 digestion, are involved: Hysterothylacium cf. cornutum, Cosmocephalus obvelatus and Paracuaria tridentata. 72% of all stomachs examined were affected. The ratio of number of granulomas to number of the 3 larval species free in the mesentery was 1:...

  20. Generation of hyaline cartilaginous tissue from mouse adult dermal fibroblast culture by defined factors

    Science.gov (United States)

    Hiramatsu, Kunihiko; Sasagawa, Satoru; Outani, Hidetatsu; Nakagawa, Kanako; Yoshikawa, Hideki; Tsumaki, Noriyuki

    2011-01-01

    Repair of cartilage injury with hyaline cartilage continues to be a challenging clinical problem. Because of the limited number of chondrocytes in vivo, coupled with in vitro de-differentiation of chondrocytes into fibrochondrocytes, which secrete type I collagen and have an altered matrix architecture and mechanical function, there is a need for a novel cell source that produces hyaline cartilage. The generation of induced pluripotent stem (iPS) cells has provided a tool for reprogramming dermal fibroblasts to an undifferentiated state by ectopic expression of reprogramming factors. Here, we show that retroviral expression of two reprogramming factors (c-Myc and Klf4) and one chondrogenic factor (SOX9) induces polygonal chondrogenic cells directly from adult dermal fibroblast cultures. Induced cells expressed marker genes for chondrocytes but not fibroblasts, i.e., the promoters of type I collagen genes were extensively methylated. Although some induced cell lines formed tumors when subcutaneously injected into nude mice, other induced cell lines generated stable homogenous hyaline cartilage–like tissue. Further, the doxycycline-inducible induction system demonstrated that induced cells are able to respond to chondrogenic medium by expressing endogenous Sox9 and maintain chondrogenic potential after substantial reduction of transgene expression. Thus, this approach could lead to the preparation of hyaline cartilage directly from skin, without generating iPS cells. PMID:21293062

  1. Research studies of aging changes of hyaline cartilage surface by using Raman-scattering spectroscopy

    Science.gov (United States)

    Timchenko, E. V.; Timchenko, P. E.; Dolgushkin, D. A.; Volova, L. T.; Lazarev, V. A.; Tyumchenkova, A. S.; Markova, M. D.

    2017-08-01

    The paper presents the results of a comparative analysis by the method of Raman spectroscopy of the joint hyaline cartilage of adults and children. Differences in the spectral characteristics of the surface of articular cartilage are shown. New optical coefficients have been introduced, which make it possible to evaluate the age-related changes in cartilaginous tissue.

  2. Quantification of collagen distributions in rat hyaline and fibro cartilages based on second harmonic generation imaging

    Science.gov (United States)

    Zhu, Xiaoqin; Liao, Chenxi; Wang, Zhenyu; Zhuo, Shuangmu; Liu, Wenge; Chen, Jianxin

    2016-10-01

    Hyaline cartilage is a semitransparent tissue composed of proteoglycan and thicker type II collagen fibers, while fibro cartilage large bundles of type I collagen besides other territorial matrix and chondrocytes. It is reported that the meniscus (fibro cartilage) has a greater capacity to regenerate and close a wound compared to articular cartilage (hyaline cartilage). And fibro cartilage often replaces the type II collagen-rich hyaline following trauma, leading to scar tissue that is composed of rigid type I collagen. The visualization and quantification of the collagen fibrillar meshwork is important for understanding the role of fibril reorganization during the healing process and how different types of cartilage contribute to wound closure. In this study, second harmonic generation (SHG) microscope was applied to image the articular and meniscus cartilage, and textural analysis were developed to quantify the collagen distribution. High-resolution images were achieved based on the SHG signal from collagen within fresh specimens, and detailed observations of tissue morphology and microstructural distribution were obtained without shrinkage or distortion. Textural analysis of SHG images was performed to confirm that collagen in fibrocartilage showed significantly coarser compared to collagen in hyaline cartilage (p < 0.01). Our results show that each type of cartilage has different structural features, which may significantly contribute to pathology when damaged. Our findings demonstrate that SHG microscopy holds potential as a clinically relevant diagnostic tool for imaging degenerative tissues or assessing wound repair following cartilage injury.

  3. Uninduced adipose-derived stem cells repair the defect of full-thickness hyaline cartilage.

    Science.gov (United States)

    Zhang, Hai-Ning; Li, Lei; Leng, Ping; Wang, Ying-Zhen; Lv, Cheng-Yu

    2009-04-01

    To testify the effect of the stem cells derived from the widely distributed fat tissue on repairing full-thickness hyaline cartilage defects. Adipose-derived stem cells (ADSCs) were derived from adipose tissue and cultured in vitro. Twenty-seven New Zealand white rabbits were divided into three groups randomly. The cultured ADSCs mixed with calcium alginate gel were used to fill the full-thickness hyaline cartilage defects created at the patellafemoral joint, and the defects repaired with gel or without treatment served as control groups. After 4, 8 and 12 weeks, the reconstructed tissue was evaluated macroscopically and microscopically. Histological analysis and qualitative scoring were also performed to detect the outcome. Full thickness hyaline cartilage defects were repaired completely with ADSCs-derived tissue. The result was better in ADSCs group than the control ones. The microstructure of reconstructed tissue with ADSCs was similar to that of hyaline cartilage and contained more cells and regular matrix fibers, being better than other groups. Plenty of collagen fibers around cells could be seen under transmission electron microscopy. Statistical analysis revealed a significant difference in comparison with other groups at each time point (t equal to 4.360, P less than 0.01). These results indicate that stem cells derived from mature adipose without induction possess the ability to repair cartilage defects.

  4. Pulmonary tuberculosis

    Science.gov (United States)

    TB; Tuberculosis - pulmonary; Mycobacterium - pulmonary ... Pulmonary TB is caused by the bacterium Mycobacterium tuberculosis (M tuberculosis) . TB is contagious. This means the bacteria is easily spread from an infected person ...

  5. Granuloma encapsulation is a key factor for containing tuberculosis infection in minipigs.

    Science.gov (United States)

    Gil, Olga; Díaz, Ivan; Vilaplana, Cristina; Tapia, Gustavo; Díaz, Jorge; Fort, María; Cáceres, Neus; Pinto, Sergio; Caylà, Joan; Corner, Leigh; Domingo, Mariano; Cardona, Pere-Joan

    2010-04-06

    A transthoracic infection involving a low dose of Mycobacterium tuberculosis has been used to establish a new model of infection in minipigs. The 20-week monitoring period showed a marked Th1 response and poor humoral response for the whole infection. A detailed histopathological analysis was performed after slicing the formalin-fixed whole lungs of each animal. All lesions were recorded and classified according to their microscopic aspect, their relationship with the intralobular connective network and their degree of maturity in order to obtain a dissemination ratio (DR) between recent and old lesions. CFU counts and evolution of the DR with time showed that the proposed model correlated with a contained infection, decreasing from week 9 onwards. These findings suggest that the infection induces an initial Th1 response, which is followed by local fibrosis and encapsulation of the granulomas, thereby decreasing the onset of new lesions. Two therapeutic strategies were applied in order to understand how they could influence the model. Thus, chemotherapy with isoniazid alone helped to decrease the total number of lesions, despite the increase in DR after week 9, with similar kinetics to those of the control group, whereas addition of a therapeutic M. tuberculosis fragment-based vaccine after chemotherapy increased the Th1 and humoral responses, as well as the number of lesions, but decreased the DR. By providing a local pulmonary structure similar to that in humans, the mini-pig model highlights new aspects that could be key to a better understanding tuberculosis infection control in humans.

  6. Prevotella intermedia and Porphyromonas gingivalis in dental caries with periapical granuloma

    Directory of Open Access Journals (Sweden)

    Risya Cilmiaty

    2013-12-01

    Full Text Available Background: Dental caries with necrotic pulp is a multifactorial disease that attacks enamel involving tooth pulp. The anaerobic bacteria infection in the pulp chamber could induce the formation of periapical granuloma. However, the presence of the most frequently anaerobic bacteria identified in apical periodontitis, Porphyromonas gingivalis and Prevotella intermedia, in periapical granuloma have not been confirmed. Purpose: The aims of study were to determine the presence of Porphyromonas gingivalis and Prevotella intermedia in dental caries with necrotic pulp and to determine its relation to periapical granuloma. Methods: Thirty-six patients of dental caries with necrotic pulp in Dr. Moewardi General Hospital in Surakarta, Indonesia were involved and classified into two groups, the group of patients with periapical granuloma and the group of patients without periapical granuloma. The caries tooth was extracted, and the chronic periapical tissue was swabbed and cultured on blood agar medium in anaerobic condition. The bacterial DNA was extracted from the positive cultures and subjected for Polymerase Chain Reaction (PCR. Results: Periapical granuloma was more likely found in women (OR 5.5, 95% CI=1.277-23.693; RR 2.5, 95% CI= 1.025-6.100. Black colonies bacteria were associated with periapical granuloma (OR 2.2, 95% CI=0.517-9.594; RR 1.5, 95% CI=0.655-3.623. Porphyromonas gingivalis and Prevotella intermedia were detected in group with or without periapical granuloma, however, only Prevotella intermedia was associated with periapical granuloma (OR 1.6, 95% CI=0.418-5.903; RR 1.3, 95% CI=0.653-2.393. Conclusion: The presence of Porphyromonas gingivalis and Prevotella intermedia in periapical granuloma were confirmed, however, only Prevotella intermedia were associated with periapical granuloma.Latar belakang: Karies gigi dengan pulpa nekrosis adalah penyakit multifaktorial yang menyerang enamel hingga ruang pulpa gigi. Infeksi bakteri anaerob

  7. Pulmonary infarction secondary to tuberculoma. Bilateral multiple tuberculomas

    International Nuclear Information System (INIS)

    Sanchez, F.; Garcia-Revillo, J.; Vaquero, J. M.; Ysamat, R.

    1999-01-01

    We present a case of pulmonary infraction caused by thrombosis secondary to tuberculoma. The patient came to the Emergency Room of our hospital with dyspnea and chest pain. Chest X-ray revealed right basal pleuroparenchymal involvement and three nodules located in both lungs. Computed tomography disclosed several triangular images suggestive of infarcts in right lung base. It also showed the high attenuation of the pulmonary nodules, which initially suggested a diagnosis of tuberculous granulomas. Lung biopsy was necessary for the definitive diagnosis of the two lesions. The histopathological study reveals the cause of the infarcts to be arterial thrombosis produced by the entrapment of blood vessels in the fibrotic reaction of the granuloma, a finding that had not been reported in the literature to date. (Author) 14 refs

  8. Hızma Induced Papul of Nose Mimicking Pyogenic Granuloma

    Directory of Open Access Journals (Sweden)

    Mualla Polat

    2014-09-01

    Full Text Available The application of body piercing is popular among young people, who consider it as a sign of marginality, beauty, or group identity. Piercing procedure is observed to cause a large number of complications such as infections, pain, inflammatory reactions, bleeding, dental fractures or fissures, and gingival damage, etc., mostly in young individuals. Hizma is a traditional body ornament worn by Anatolian women via a piercing procedure. Herein, we describe a papule of nose mimicking pyogenic granuloma as an uncommon complication of Hızma.

  9. Pyogenic granuloma: a rare side complication from an orthodontic appliance.

    Science.gov (United States)

    Acharya, Priti N; Gill, Daljit; Lloyd, Tim

    2011-12-01

    This case report discusses a rare side effect associated with the use ofa fixed quad helix orthodontic appliance. A 14-year-old healthy girl presented with a painful enlarging mass on her tongue, which was causing distress to both her and her parents. Investigations confirmed that the mass was a pyogenic granuloma and management involved surgical excision of the mass and removal of the quad helix appliance. At least once previous case associated with an orthodontic quad helix appliance has been reported in the literature.

  10. Cholesterol granuloma of temporal bone: CT and MR findings

    International Nuclear Information System (INIS)

    Ruiz Jauriguizuria, J.C.; Ferrero Collado, A.; Ereno Ealo, M.J.; Grande Icaran, D.

    1994-01-01

    Three cases of cholesterol granuloma of the left temporal bone are presented, two located in the petrous apex and the other at the otomastoid level. One of the patients had a history of mastoid surgery and the other surgery of the bone ridge. The three cases were confirmed histologically following surgical resection. The etiopathogenesis of the lesion is discussed, as are the clinical, histological and radiological features, with a broad description of the computed tomography and magnetic resonance findings. The differential diagnosis is also dealt with. (Author)

  11. A foreign body granuloma of the stomach: a case report

    International Nuclear Information System (INIS)

    Rhee, Gwang Woo; Kim, Inn; Sohn, Hyung Kook; Koh, Byung Hee; Joo, Kyung Bin; Kim, Soon Yong; Park, Kyung NAm

    1987-01-01

    Granulomatous inflammation of the stomach similar to gastric neoplasm may occur in disseminated sarcoidosis, allergic granulomatosis. Crohn's disease, a variety of infectious disease, as a reaction to foreign material, and in the absence of any of the above as isolated granulomatous gastritis. In the foreign body induced granulomatous inflammation of the stomach, beryllium, kaolin, talcum, suture material and food can be causative materials. It is the intent of this case report to add to the list of more commonly occurring intramural gastric masses, the remote possibility of a foreign body granuloma. So radiologist should be aware of this entity and include it in their differential diagnosis of intramural gastric masses.

  12. A foreign body granuloma of the stomach: a case report

    Energy Technology Data Exchange (ETDEWEB)

    Rhee, Gwang Woo; Kim, Inn; Sohn, Hyung Kook; Koh, Byung Hee; Joo, Kyung Bin; Kim, Soon Yong; Park, Kyung NAm [Hanyang University School of Medicine, Seoul (Korea, Republic of)

    1987-02-15

    Granulomatous inflammation of the stomach similar to gastric neoplasm may occur in disseminated sarcoidosis, allergic granulomatosis. Crohn's disease, a variety of infectious disease, as a reaction to foreign material, and in the absence of any of the above as isolated granulomatous gastritis. In the foreign body induced granulomatous inflammation of the stomach, beryllium, kaolin, talcum, suture material and food can be causative materials. It is the intent of this case report to add to the list of more commonly occurring intramural gastric masses, the remote possibility of a foreign body granuloma. So radiologist should be aware of this entity and include it in their differential diagnosis of intramural gastric masses.

  13. Symptomatic Granuloma Secondary to Embolic Agent: A Case Report.

    Science.gov (United States)

    Gunawat, Prashant; Shaikh, Salman Tehran; Karmarkar, Vikram; Deopujari, Chandrashekhar

    2016-11-01

    Onyx is a liquid embolic agent presently gaining wide acceptance for embolisation of multiple vascular cranial pathologies like Arteriovenous Malformation (AVM) and Arteriovenous Fistula (AVF). Onyx stays in the nidus of vascular pathology and initiates inflammatory response leading to thrombosis and subsequently resulting in occlusion of vascular nidus. However, if onyx spills into the surrounding brain tissue, reaction occurs in the form of foreign body inflammatory reaction. This is one of the very few cases in literature whereby embolisation of AVM with onyx lead to granuloma formation which needed surgical excision. It presented with limb weakness and seizure episodes.

  14. Ultrasonographic study of subcutaneous penile granuloma secondary to silicone injection

    Directory of Open Access Journals (Sweden)

    Lucio Dell'Atti

    2016-10-01

    Full Text Available Penile augmentation has been reported in the literature by injecting various materials. This study reports our experience in management of penile augmentation complications associated with selfpenile injection of silicone liquid. After a careful ultrasound study, the penile skin was excised through a circumferential sub-coronal incision and dissected with the silicon mass. Histology was well-compatible with silicone granulomas. The patient was discharged after 24 hours. Ultrasonography has permitted preoperatively to determine if the plane between the indurated inflammatory tissue and the Buck’s fascia was preserved for the complete surgical excision of affected tissue.

  15. Granuloma telangiectásico en cavidad oral

    Directory of Open Access Journals (Sweden)

    Antonio José Díaz Caballero

    Full Text Available El granuloma telangiectásico se considera como una lesión benigna no neoplásica de la mucosa gingival de tipo reactivo asociado a trauma. Durante varios años tuvo diferentes nombres dentro de los que destacan granuloma piógeno del embarazo o gravídico, hemangioma capilar lobular y épulis. Histológicamente se caracteriza por una proliferación vascular, infiltrado inflamatorio crónico y tejido de granulación. El objetivo del presente caso es describir las características clínicas e histológicas de un granuloma telangiectásico en cavidad oral y su plan de tratamiento. Llega a consulta paciente femenina de 50 años de edad, refiere presentar sangrado gingival en repetidas ocasiones en zona posterior de la arcada dentaria superior, durante el cepillado o con el consumo de algunos alimentos. Clínicamente se observa prótesis provisional desadaptada en órganos dentarios 11 al 15. Al retirar la prótesis es notorio un aumento de volumen en la encía interdental, con aspecto eritematoso, que sangra con facilidad. El reporte de anatomía patológica mostró una lesión con engrosamiento del epitelio escamoso, formación de nuevos vasos sanguíneos e infiltrado inflamatorio crónico. Diagnosticado como granuloma telangiectásico. La lesión fue eliminada quirúrgicamente por alargamiento coronal con reducción ósea. Ocho días después de la cirugía se evidencia proceso de cicatrización sin ninguna complicación. La lesión presentó recidiva transcurrido seis meses. Ello nos lleva a destacar la importancia del control de factores locales, como la presencia de prótesis desadaptadas y el acúmulo de placa bacteriana luego de la eliminación quirúrgica de este tipo de lesiones.

  16. Cholesterol Granuloma in Odontogenic Cyst: An Enigmatic Lesion

    Directory of Open Access Journals (Sweden)

    Mala Kamboj

    2016-01-01

    Full Text Available Cholesterol granuloma (CG is the outcome of the foreign body type of response to the accumulation of cholesterol crystals and is frequently present in conjunction with chronic middle ear diseases. Recently, cases of CG in jaws have been reported, but still, very few cases have been found of CG in dental literature. This article presents three rare cases of CG in the wall of odontogenic cysts emphasizing on its possible role in expansion of the associated lesion and bone erosion. It also lays stress on the fact that more cases of CG should be reported so that its nature and pathogenesis in the oral cavity become more perceivable.

  17. Is the T1ρ MRI profile of hyaline cartilage in the normal hip uniform?

    Science.gov (United States)

    Rakhra, Kawan S; Cárdenas-Blanco, Arturo; Melkus, Gerd; Schweitzer, Mark E; Cameron, Ian G; Beaulé, Paul E

    2015-04-01

    T1ρ MRI is an imaging technique sensitive to proteoglycan (PG) content of hyaline cartilage. However, normative T1ρ values have not been established for the weightbearing cartilage of the hip, and it is not known whether it is uniform or whether there is topographic variation. Knowledge of the T1ρ profile of hyaline cartilage in the normal hip is important for establishing a baseline against which comparisons can be made to experimental and clinical arthritic subjects. In this diagnostic study, we determined (1) the T1ρ MRI values of hyaline cartilage of the normal hip; and (2) whether the T1ρ MRI profile of the normal hip hyaline cartilage is uniform. Fourteen asymptomatic volunteers (11 men, three women; mean age, 35 years) prospectively underwent 1.5-T T1ρ MRI of a single hip. The weightbearing hyaline cartilage bilayer of the acetabulum and femoral head was evaluated on sagittal images and segmented into four zones: (1) anterior; (2) anterosuperior; (3) posterosuperior; and (4) and posterior. For the full region of interest and within each zone and each sagittal slice, we calculated the mean T1ρ relaxation value, a parameter that indirectly quantifies PG content, where T1ρ is inversely related to PG concentration. There was variation in the T1ρ relaxation values depending on zone (anterior to posterior) and slice (medial to lateral). When combining the most anterior quadrants (Zones 1 and 2), the T1ρ relaxation values were lower than those in the combined posterior quadrants (Zones 3 and 4) (30.4 msec versus 32.2 msec, respectively; p = 0.002), reflecting higher PG concentration. There was a difference between the T1ρ relaxation values of the sagittal slices (p = 0.038), most pronounced anteriorly in Zone 1 (26.6 msec, p = 0.001). With a selective combination of zones and slices, there were lower mean T1ρ values in the anterolateral-most region compared with the remainder of the weightbearing portion of the hip (28.6 msec versus 32.2 msec

  18. A Rare Cause of Pulmonary Nodules

    Directory of Open Access Journals (Sweden)

    Michael Tsuyoshi Chew

    2016-10-01

    Full Text Available Crohn’s disease is a chronic, idiopathic autoimmune disorder that primarily targets the gastrointestinal (GI system. It is characterized by transmural inflammation of the GI tract that can occur anywhere from the mouth to the anus. Not infrequently, the disease may also have extraintestinal manifestations (EIMs that can affect almost any organ system. It is estimated that EIMs affect up to 36% of patients with Crohn’s disease, but the incidence and prevalence of pulmonary involvement are variable in the literature and may be as low as 0.4%. There are few case reports documenting pulmonary manifestations, as they are often overlooked, especially if respiratory symptoms are present before the diagnosis of GI manifestations, as in the present case. A 44-year-old otherwise healthy woman presented with nonspecific respiratory complaints, recurrent pneumonias, and multiple computed tomography images showing diffuse, migratory, nodular, and consolidative parenchymal lung disease, with a largely unremarkable infectious and rheumatologic evaluation. Lung biopsy revealed necrotizing and nonnecrotizing granulomas, raising concern for sarcoidosis. Subsequent imaging revealed an incidental mass in the cecum. Biopsy of the cecum lesion revealed acute cryptitis, crypt abscess, and a single poorly formed granuloma, suggesting the possibility of Crohn’s disease. In this report, we present a patient whose pulmonary manifestations ultimately led to the diagnosis of Crohn’s disease.

  19. Cholestrol granuloma of the breast incidentally detected on dynamic abdominal CT: A case report

    Energy Technology Data Exchange (ETDEWEB)

    Jeong, Sun Hye; Lee, Eun Hye; Hong, Hyun Sook; Kwak, Jeong Ja [Soonchunhyang University College of Medicine, Bucheon Hospital, Bucheon (Korea, Republic of)

    2016-01-15

    A breast cholesterol granuloma is an uncommon nodular breast lesion. We incidentally detected a persistently enhancing breast mass on the dynamic abdominal computed tomography (CT) of a 78-year-old woman. The mass decreased in diameter over 50 days following a core needle biopsy. This report is the first to describe the dynamic-enhanced CT features of a breast cholesterol granuloma.

  20. Comparison of digital radiometric features between radicular cysts and periapical granulomas

    International Nuclear Information System (INIS)

    Jin, Yeon Hwa; Lee, Keon Il

    1999-01-01

    The purpose of this study was to investigate whether a radiometric analysis of radicular cysts and periapical granulomas is useful in the differential diagnosis. In this experiment, twenty-nine periapical radiographs of the radicular cyst and those periapical granuloma were used. The periapical radiography was taken by intraoral paralleling device. The X-ray film was digitized and digitally filtered to reduce film-grain noise. We estimated density difference of the inner/outer area, roundness or circularity, bone profile or scan line of the margin and cumulative percentage frequency curve of radicular cyst and periapical granuloma.The obtained results were as follows ; 1. The differences in density between ROIs of inner and outer area of radicular cysts were smaller than those of periapical granulomas.2. The equivalent circular diameter was over 6.3 mm, there was significant difference between periapical cyst and periapical granuloma.3. In differential diagnosis of radicular cyst and periapical granuloma using bone profile, sensitivity, spicificity and accuracy were considerably high (0.83, 0.86, 0.86) respectively.4. Cumulative percentage frequency curve of the radicular cyst was closer to the pseudo-pixel value of 50 than average curve, whereas periapical granuloma was closer to that of 0. Hence we conclude that digital radiometric features might be useful in the differential diagnosis between radicular cyst and periapical granuloma.

  1. Evaluation of immunoglobulin G synthesizing plasma cells in periapical granuloma and cyst.

    OpenAIRE

    Grover N; Rao N; Kotian M

    2001-01-01

    Immunoglobulin synthesizing plasma cells for IgG were quantitated in 20 periapical granulomas and 20 periapical cysts, using unlabelled antibody peroxidase-antiperoxidase complex method. Result showed that immunoglobulin G producing plasma cells were predominant in periapical cyst as compared with periapical granuloma. A statistical significant relation was observed between these two lesions.

  2. Comparison of digital radiometric features between radicular cysts and periapical granulomas

    Energy Technology Data Exchange (ETDEWEB)

    Jin, Yeon Hwa; Lee, Keon Il [Dept. of Oral and Maxillofacial Radiology, College of Dentistry, Wankwang University, Yongin (Korea, Republic of)

    1999-02-15

    The purpose of this study was to investigate whether a radiometric analysis of radicular cysts and periapical granulomas is useful in the differential diagnosis. In this experiment, twenty-nine periapical radiographs of the radicular cyst and those periapical granuloma were used. The periapical radiography was taken by intraoral paralleling device. The X-ray film was digitized and digitally filtered to reduce film-grain noise. We estimated density difference of the inner/outer area, roundness or circularity, bone profile or scan line of the margin and cumulative percentage frequency curve of radicular cyst and periapical granuloma.The obtained results were as follows ; 1. The differences in density between ROIs of inner and outer area of radicular cysts were smaller than those of periapical granulomas.2. The equivalent circular diameter was over 6.3 mm, there was significant difference between periapical cyst and periapical granuloma.3. In differential diagnosis of radicular cyst and periapical granuloma using bone profile, sensitivity, spicificity and accuracy were considerably high (0.83, 0.86, 0.86) respectively.4. Cumulative percentage frequency curve of the radicular cyst was closer to the pseudo-pixel value of 50 than average curve, whereas periapical granuloma was closer to that of 0. Hence we conclude that digital radiometric features might be useful in the differential diagnosis between radicular cyst and periapical granuloma.

  3. Contribution to the radiological study of the eosinophilic granuloma of the mandible (Unifocal granuloma due to Langherans' cell histiocytosis)

    International Nuclear Information System (INIS)

    Chigi, Gino; Pastremoli, Alessandro; Pisi, Paolo; Pastremoli, Alfredo

    2005-01-01

    Purpose: The radiological diagnosis of osteolytic lesions of the mandible still constitutes a challenge in some pathological conditions in which the clinical data and the case history are relatively uniform and the radiological picture is lacking in any characteristics. Materials and methods: We reviewed the conventional radiograms of six cases of Langherans' cell histiocytosis (LCH) of the mandible examined over the last ten years. The X-ray examinations were performed in the lateral-oblique projection to allow a view of the horizontal portion of the mandible almost completely free of overlapping images of other bone structures. Results: We identified a series of radiological patterns for these reticulo-endotheliopathies capable of causing granuloma formed by polinuclear eosinophils, plasma cells, lymphocytes, and large mononuclear macrophages with granulopexic and phagocytic activity that proliferate in the bone tissue and can be identified as the Langherans' cells of skin, mucosa, periodontal cavities and bone marrow. The granulomatous tissue penetrates the affected organ elements and, in its spread, it compresses, atrophies, and destroyed the damaged tissue, replacing it. The alterations produced by Langherans' cell histiocytic granuloma are most common in the skeletal system affecting, in order of frequency, the skull, the long bones of the limbs, the foot, the ribs and the spine. The oral mucosa is rarely involved. Conclusions: The radiological investigation of unifocal Langherans' cell histiocytic granuloma of the mandible is essential in the study of perimandibular swelling, although diagnosis is based on biopsy alone. In addition to digital or conventional radiography, other useful examinations are bone scintigraphy, Colour Doppler US, MR and CT, which enables a correct localisation necessary for planning the biopsy and treatment [it

  4. Functional complexity of the Leishmania granuloma and the potential of in silico modelling

    Directory of Open Access Journals (Sweden)

    John eMoore

    2013-02-01

    Full Text Available AbstractIn human and canine visceral leishmaniasis and in various experimental models of this disease, host resistance is strongly linked to efficient granuloma development. However, it is unknown exactly how the granuloma microenvironment executes an effective antileishmanial response. Recent studies, including using advanced imaging techniques have improved our understanding of granuloma biology, at the cellular level, highlighting heterogeneity in granuloma development and function, and hinting at complex cellular, temporal and spatial dynamics. In this mini-review, we discuss the factors involved in the formation and function of L.donovani-induced hepatic granulomas, as well as their importance in protecting against inflammation-associated tissue damage and the generation of immunity to rechallenge. Finally, we discuss the role that computational, agent-based models may play to answer outstanding questions within the field.

  5. The Extracellular Matrix Regulates Granuloma Necrosis in Tuberculosis.

    Science.gov (United States)

    Al Shammari, Basim; Shiomi, Takayuki; Tezera, Liku; Bielecka, Magdalena K; Workman, Victoria; Sathyamoorthy, Tarangini; Mauri, Francesco; Jayasinghe, Suwan N; Robertson, Brian D; D'Armiento, Jeanine; Friedland, Jon S; Elkington, Paul T

    2015-08-01

    A central tenet of tuberculosis pathogenesis is that caseous necrosis leads to extracellular matrix destruction and bacterial transmission. We reconsider the underlying mechanism of tuberculosis pathology and demonstrate that collagen destruction may be a critical initial event, causing caseous necrosis as opposed to resulting from it. In human tuberculosis granulomas, regions of extracellular matrix destruction map to areas of caseous necrosis. In mice, transgenic expression of human matrix metalloproteinase 1 causes caseous necrosis, the pathological hallmark of human tuberculosis. Collagen destruction is the principal pathological difference between humanised mice and wild-type mice with tuberculosis, whereas the release of proinflammatory cytokines does not differ, demonstrating that collagen breakdown may lead to cell death and caseation. To investigate this hypothesis, we developed a 3-dimensional cell culture model of tuberculosis granuloma formation, using bioelectrospray technology. Collagen improved survival of Mycobacterium tuberculosis-infected cells analyzed on the basis of a lactate dehydrogenase release assay, propidium iodide staining, and measurement of the total number of viable cells. Taken together, these findings suggest that collagen destruction is an initial event in tuberculosis immunopathology, leading to caseous necrosis and compromising the immune response, revealing a previously unappreciated role for the extracellular matrix in regulating the host-pathogen interaction. © The Author 2015. Published by Oxford University Press on behalf of the Infectious Diseases Society of America. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.

  6. Differential cytokine gene expression in granulomas from lungs and lymph nodes of cattle experimentally infected with aerosolized Mycobacterium bovis

    Science.gov (United States)

    The hallmark lesion of tuberculosis in humans and animals is the granuloma. The granuloma represents a distinct host cellular immune response composed of epithelioid macrophages, lymphocytes, and multinucleated giant cells, often surrounding a caseous necrotic core. Within the granuloma, host intera...

  7. Contribution to the radiological study of the eosinophilic granuloma of the mandible (Unifocal granuloma due to Langherans' cell histiocytosis); Contributo allo studio radiologico del granuloma eosinofilo della mandibola (granuloma unifocale da istiocitosi delle cellule di Lagherhans)

    Energy Technology Data Exchange (ETDEWEB)

    Chigi, Gino; Pastremoli, Alessandro; Pisi, Paolo; Pastremoli, Alfredo [Bologna Univ., Bologna (Italy). Dipartimento di scienze odontomastologiche; Bianchi, Giuseppe [Istituti Ortopedici Rizzoli, Bologna (Italy)

    2005-04-01

    Purpose: The radiological diagnosis of osteolytic lesions of the mandible still constitutes a challenge in some pathological conditions in which the clinical data and the case history are relatively uniform and the radiological picture is lacking in any characteristics. Materials and methods: We reviewed the conventional radiograms of six cases of Langherans' cell histiocytosis (LCH) of the mandible examined over the last ten years. The X-ray examinations were performed in the lateral-oblique projection to allow a view of the horizontal portion of the mandible almost completely free of overlapping images of other bone structures. Results: We identified a series of radiological patterns for these reticulo-endotheliopathies capable of causing granuloma formed by polinuclear eosinophils, plasma cells, lymphocytes, and large mononuclear macrophages with granulopexic and phagocytic activity that proliferate in the bone tissue and can be identified as the Langherans' cells of skin, mucosa, periodontal cavities and bone marrow. The granulomatous tissue penetrates the affected organ elements and, in its spread, it compresses, atrophies, and destroyed the damaged tissue, replacing it. The alterations produced by Langherans' cell histiocytic granuloma are most common in the skeletal system affecting, in order of frequency, the skull, the long bones of the limbs, the foot, the ribs and the spine. The oral mucosa is rarely involved. Conclusions: The radiological investigation of unifocal Langherans' cell histiocytic granuloma of the mandible is essential in the study of perimandibular swelling, although diagnosis is based on biopsy alone. In addition to digital or conventional radiography, other useful examinations are bone scintigraphy, Colour Doppler US, MR and CT, which enables a correct localisation necessary for planning the biopsy and treatment. [Italian] Scopo: La diagnosi radiologica delle lesioni osteolitiche della mandibola costituisce un problema

  8. Over-expression of thymosin β4 in granulomatous lung tissue with active pulmonary tuberculosis.

    Science.gov (United States)

    Kang, Yun-Jeong; Jo, Jin-Ok; Ock, Mee Sun; Yoo, Young-Bin; Chun, Bong-Kwon; Oak, Chul-Ho; Cha, Hee-Jae

    2014-05-01

    Recent studies have shown that thymosin β4 (Tβ4) stimulates angiogenesis by inducing vascular endothelial growth factor (VEGF) expression and stabilizing hypoxia inducible factor-1α (HIF-1α) protein. Pulmonary tuberculosis (TB), a type of granulomatous disease, is accompanied by intense angiogenesis and VEGF levels have been reported to be elevated in serum or tissue inflamed by pulmonary tuberculosis. We investigated the expression of Tβ4 in granulomatous lung tissues at various stages of active pulmonary tuberculosis, and we also examined the expression patterns of VEGF and HIF-1α to compare their Tβ4 expression patterns in patients' tissues and in the tissue microarray of TB patients. Tβ4 was highly expressed in both granulomas and surrounding lymphocytes in nascent granulomatous lung tissue, but was expressed only surrounding tissues of necrotic or caseous necrotic regions. The expression pattern of HIF-1α was similar to that of Tβ4. VEGF was expressed in both granulomas and blood vessels surrounding granulomas. The expression pattern of VEGF co-localized with CD31 (platelet endothelial cell adhesion molecule, PECAM-1), a blood endothelial cell marker, and partially co-localized with Tβ4. However, the expression of Tβ4 did not co-localize with alveolar macrophages. Stained alveolar macrophages were present surrounding regions of granuloma highly expressing Tβ4. We also analyzed mRNA expression in the sputum of 10 normal and 19 pulmonary TB patients. Expression of Tβ4 was significantly higher in patients with pulmonary tuberculosis than in normal controls. These data suggest that Tβ4 is highly expressed in granulomatous lung tissue with active pulmonary TB and is associated with HIF-1α- and VEGF-mediated inflammation and angiogenesis. Furthermore, the expression of Tβ4 in the sputum of pulmonary tuberculosis patients can be used as a potential marker for diagnosis. Copyright © 2014 Elsevier Ltd. All rights reserved.

  9. A preclinical evaluation of an autologous living hyaline-like cartilaginous graft for articular cartilage repair: a pilot study

    OpenAIRE

    Yvonne Peck; Pengfei He; Geetha Soujanya V. N. Chilla; Chueh Loo Poh; Dong-An Wang

    2015-01-01

    In this pilot study, an autologous synthetic scaffold-free construct with hyaline quality, termed living hyaline cartilaginous graft (LhCG), was applied for treating cartilage lesions. Implantation of autologous LhCG was done at load-bearing regions of the knees in skeletally mature mini-pigs for 6 months. Over the course of this study, significant radiographical improvement in LhCG treated sites was observed via magnetic resonance imaging. Furthermore, macroscopic repair was effected by LhCG...

  10. Clinical implications of a rare renal entity: Pleomorphic Hyalinizing Angiectatic Tumor (PHAT).

    Science.gov (United States)

    Scalici Gesolfo, Cristina; Serretta, Vincenzo; Di Maida, Fabrizio; Giannone, Giulio; Barresi, Elisabetta; Franco, Vito; Montironi, Rodolfo

    2017-02-01

    Pleomorphic Hyalinizing Angiectatic Tumor (PHAT) is a rare benign lesion characterized by slow growth, infiltrative behavior and high rate of local recurrences. Only one case has been described in retroperitoneum, at renal hilum, but not involving pelvis or parenchyma. Here we present the first case of PHAT arising in the renal parenchyma. A nodular lesion in right kidney lower pole was diagnosed to a 61 year old woman. The patient underwent right nephrectomy. Microscopically, the lesion showed solid and pseudo-cystic components with hemorrhagic areas characterized by aggregates of ectatic blood vessels. Pleomorphic cells were characterized by large eosinophilic cytoplasm with irregular and hyperchromatic nuclei. Immunohistochemistry was performed and the lesion was classified as a Pleomorphic Hyalinizing Angiectatic Tumor (PHAT). Due to the clinical behavior of this tumor, in spite of its benign nature, review of the surgical margins and close follow up after partial nephrectomy are mandatory. Copyright © 2016. Published by Elsevier GmbH.

  11. MIXED HYALINE VASCULAR AND PLASMA CELL TYPE CASTLEMAN’S DISEASE: REPORT OF A CASE

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    F. Asgarani

    2006-05-01

    Full Text Available Castleman’s disease (angiofollicular lymphoid hyperplasia includes a heterogeneous group of lymphoproliferative disorders. The cause of this disease remains uncertain. There are two types of localized Castleman’s disease: the more common hyaline vascular and the plasma cell types. Mixed variant is an uncommon localized lesion in general population. The lesions can occur in any part of the body that contains lymphoid tissue, although seventy percent are found in the anterior mediastinum. We report a thirty years old boy with Castleman’s disease who presented with fever, anorexia, weight loss,sweating, anemia and abdominal mass. The histologic examination of the biopsy specimens revealed a mixed hyaline vascular and plasma cell type of Castleman’s disease.

  12. Biophysical Stimuli: A Review of Electrical and Mechanical Stimulation in Hyaline Cartilage.

    Science.gov (United States)

    Vaca-González, Juan J; Guevara, Johana M; Moncayo, Miguel A; Castro-Abril, Hector; Hata, Yoshie; Garzón-Alvarado, Diego A

    2017-09-01

    Objective Hyaline cartilage degenerative pathologies induce morphologic and biomechanical changes resulting in cartilage tissue damage. In pursuit of therapeutic options, electrical and mechanical stimulation have been proposed for improving tissue engineering approaches for cartilage repair. The purpose of this review was to highlight the effect of electrical stimulation and mechanical stimuli in chondrocyte behavior. Design Different information sources and the MEDLINE database were systematically revised to summarize the different contributions for the past 40 years. Results It has been shown that electric stimulation may increase cell proliferation and stimulate the synthesis of molecules associated with the extracellular matrix of the articular cartilage, such as collagen type II, aggrecan and glycosaminoglycans, while mechanical loads trigger anabolic and catabolic responses in chondrocytes. Conclusion The biophysical stimuli can increase cell proliferation and stimulate molecules associated with hyaline cartilage extracellular matrix maintenance.

  13. Hyaline cartilage formation and tumorigenesis of implanted tissues derived from human induced pluripotent stem cells.

    Science.gov (United States)

    Saito, Taku; Yano, Fumiko; Mori, Daisuke; Kawata, Manabu; Hoshi, Kazuto; Takato, Tsuyoshi; Masaki, Hideki; Otsu, Makoto; Eto, Koji; Nakauchi, Hiromitsu; Chung, Ung-il; Tanaka, Sakae

    2015-01-01

    Induced pluripotent stem cells (iPSCs) are a promising cell source for cartilage regenerative medicine. Meanwhile, the risk of tumorigenesis should be considered in the clinical application of human iPSCs (hiPSCs). Here, we report in vitro chondrogenic differentiation of hiPSCs and maturation of the differentiated hiPSCs through transplantation into mouse knee joints. Three hiPSC clones showed efficient chondrogenic differentiation using an established protocol for human embryonic stem cells. The differentiated hiPSCs formed hyaline cartilage tissues at 8 weeks after transplantation into the articular cartilage of NOD/SCID mouse knee joints. Although tumors were not observed during the 8 weeks after transplantation, an immature teratoma had developed in one mouse at 16 weeks. In conclusion, hiPSCs are a potent cell source for regeneration of hyaline articular cartilage. However, the risk of tumorigenesis should be managed for clinical application in the future.

  14. Can one generate stable hyaline cartilage from adult mesenchymal stem cells? A developmental approach.

    Science.gov (United States)

    Hellingman, Catharine A; Koevoet, Wendy; van Osch, Gerjo J V M

    2012-11-01

    Chondrogenically differentiating bone marrow-derived mesenchymal stem cells (BMSCs) display signs of chondrocyte hypertrophy, such as production of collagen type X, MMP13 and alkaline phosphatase (ALPL). For cartilage reconstructions this is undesirable, as terminally differentiated cartilage produced by BMSCs mineralizes when implanted in vivo. Terminal differentiation is not restricted to BMSCs but is also encountered in chondrogenic differentiation of adipose-derived mesenchymal stem cells (MSCs) as well as embryonic stem cells, which by definition should be able to generate all types of tissues, including stable cartilage. Therefore, we propose that the currently used culture conditions may drive the cells towards terminal differentiation. In this manuscript we aim to review the literature, supplemented by our own data to answer the question, is it possible to generate stable hyaline cartilage from adult MSCs? We demonstrate that recently published methods for inhibiting terminal differentiation (through PTHrP, MMP13 or blocking phosphorylation of Smad1/5/8) result in cartilage formation with reduction of hypertrophic markers, although this does not reach the low level of stable chondrocytes. A set of hypertrophy markers should be included in future studies to characterize the phenotype more precisely. Finally, we used what is currently known in developmental biology about the differential development of hyaline and terminally differentiated cartilage to provide thought and insights to change current culture models for creating hyaline cartilage. Inhibiting terminal differentiation may not result in stable hyaline cartilage if the right balance of signals has not been created from the start of culture onwards. Copyright © 2011 John Wiley & Sons, Ltd.

  15. Pleomorphic Hyalinizing Angiectatic Tumour: A Rare Case Report and Discussion of Differential Diagnosis.

    Science.gov (United States)

    Chalmeti, Ambica; Arakeri, Surekha U; Javalgi, Anita P; Goyal, Shefali

    2017-08-01

    Pleomorphic Hyalinizing Angiectatic Tumour (PHAT) is one of the rare soft tissue tumour which is non-metastasizing. The origin of this tumour is yet uncertain. It occurs in adults as a slow growing subcutaneous mass mimicking clinically and histologically to various benign and malignant soft tissue tumours such as schwannoma, haemangioma and malignant fibrous histiocytoma. The microscopic features of this tumour include clusters of ectatic, fibrin containing, hyalinized blood vessels with pleomorphic and spindle shaped tumour cells showing intranuclear inclusions, stromal haemosiderin pigment and a variable inflammatory infiltrate. Despite marked pleomorphism, the lesion behaves as a low grade neoplasm, with frequent recurrences, but no metastases. The incidence of this tumour is very rare with less than 100 cases being published. Hence, awareness of this entity is must for proper management of the patient and to avoid misdiagnosis of the lesion. We report a case of pleomorphic hyalinizing angiectatic tumour in a 50-year-old man who presented with a slow growing mass in the left calf region since two years.

  16. In vitro uptake of 153gadolinium and gadolinium complexes by hyaline articular cartilage

    International Nuclear Information System (INIS)

    Engel, A.; Fleischmann, D.; Hamilton, G.; Hajek, P.

    1990-01-01

    This in vitro study evaluated whether Gadolinium (Gd) penetrates into hyaline cartilage and would be incorporated into vital chondrocytes. Hyaline joint cartilage of rabbits was exposed to radioactive 153 GdCl 3 and to a radioactive 153 Gd-DTPA-BSA-complex (DTPA, diethylene-triaminepentaacetic acid; BSA, bovine serum albumine). In addition an exchange experiment with radioactive 153 GdCl 3 versus Gd-DTPA-di-N-methylglucamine (Magnevist) was performed. Incorporation of 153 GdCl 3 into neuroblastoma cells, connective tissue cells and chondrocytes was tested. The results showed that the depth and extent of incorporation of Gd depends on the molecular mass and time of exposure. 153 Gd-DTPA-BSA complexes exhibited an incorporation rate of maximal 11 per cent ± 2.8 per cent up to the middle third of the cartilage within 24 h with almost no incorporation (2 ± 1.9 per cent) for the deep layer. The exchange experiment revealed no uptake of Gd for the deep layer. The maximal incorporation rate of 153 GdCl 3 into vital chondrocytes was 6.3 per cent. These data indicate that under the condition of MR-arthrography, Gd-DTPA-di-N-methylglucamine will not be absorbed into the deep layers of hyaline cartilage and will not be incorporated into vital chondrocytes. (author). 8 refs.; 3 tabs

  17. Elastic cartilage reconstruction by transplantation of cultured hyaline cartilage-derived chondrocytes.

    Science.gov (United States)

    Mizuno, M; Takebe, T; Kobayashi, S; Kimura, S; Masutani, M; Lee, S; Jo, Y H; Lee, J I; Taniguchi, H

    2014-05-01

    Current surgical intervention of craniofacial defects caused by injuries or abnormalities uses reconstructive materials, such as autologous cartilage grafts. Transplantation of autologous tissues, however, places a significant invasiveness on patients, and many efforts have been made for establishing an alternative graft. Recently, we and others have shown the potential use of reconstructed elastic cartilage from ear-derived chondrocytes or progenitors with the unique elastic properties. Here, we examined the differentiation potential of canine joint cartilage-derived chondrocytes into elastic cartilage for expanding the cell sources, such as hyaline cartilage. Articular chondrocytes are isolated from canine joint, cultivated, and compared regarding characteristic differences with auricular chondrocytes, including proliferation rates, gene expression, extracellular matrix production, and cartilage reconstruction capability after transplantation. Canine articular chondrocytes proliferated less robustly than auricular chondrocytes, but there was no significant difference in the amount of sulfated glycosaminoglycan produced from redifferentiated chondrocytes. Furthermore, in vitro expanded and redifferentiated articular chondrocytes have been shown to reconstruct elastic cartilage on transplantation that has histologic characteristics distinct from hyaline cartilage. Taken together, cultured hyaline cartilage-derived chondrocytes are a possible cell source for elastic cartilage reconstruction. Crown Copyright © 2014. Published by Elsevier Inc. All rights reserved.

  18. Pulmonary lymphoproliferative disorders with affinity to lymphoma: a clinicopathoradiologic study of 16 cases

    International Nuclear Information System (INIS)

    Fernandez Cruz, J.; Gonzalez Garcia, A.; Escobar Casas, P.; Gomez Benitez, S.; Gonzalez Guirao, M.A.; Borderas, F.

    1993-01-01

    Pulmonary lymphoproliferative disorders include plasma cell granuloma, Castleman's disease, pseudolymphoma, lymphocytic interstitial pneumonia, angioimmunoblastic lymphadenopathy and lymphomatoid granulomatosis. We carried out a retrospective study for the purpose of analysing the clinical and radiological findings of 16 cases of pulmonary lymphoproliferative disorders seen during the decade 1980-1990. The cases comprised 8 lymphocytic interstitial pneumonia, 5 lymphomatoid granulomatosis, 2 plasma cell granuloma and 1 angioimmunoblastic lymphadenopathy. Owing to the overlap and low specificity of the radiological patterns in these processes, histopathological examination is required. In view of the frequent evolution of pulmonary lymphoproliferative disorders to malignant lymphoma (4 cases, 1 of lymphocytic interstitial pneumonia and 3 of lymphomatoid granulomatosis, in our series) we provide a description of the radiological changes that occur during this process. (orig.)

  19. Digital radiography density measurements in differentiation between periapical granulomas and radicular cysts.

    Science.gov (United States)

    Rózyło-Kalinowska, Ingrid

    2007-05-01

    The distinction between radicular cysts and apical granulomas is a matter of considerable importance in making a treatment decision. Because there are no clearly defined radiographic criteria, the distinction is made on the grounds of size. However, it has been suggested that cysts can be distinguished from granulomas on the basis of their radiometric density. The results of previous studies have proved conflicting. To determine possibilities of application of digital radiography density measurements in differentiation of periapical granulomas and radicular cysts of inflammatory origin. The material consisted of 355 digital periapical radiograms obtained using Digora, RVG and Dixi 2 digital radiography systems in patients aged 20 to 84, divided into two groups: 259 granulomas and 102 radicular cysts. By means of Digora 2.0 software there were measured maximum and minimum densities along a line, then there was calculated the difference between maximum and minimum density. The largest dimensions of the lesions were measured - perpendicular and parallel to the root canal axis. It was proved that to some extent it was possible to differentiate cystic granulomas and radicular cysts on the basis of the difference between maximum and minimum density in linear measurement - when the difference exceeded 85.6 the lesion was a cyst and when it was below 45.9 a granuloma was diagnosed. Combination of two criteria - the calculated difference between densities and the largest dimension of a lesion, increased diagnostic possibilities of radiological differentiation of granulomas and radicular cysts.

  20. Foamy macrophages and the progression of the human TB granuloma

    Science.gov (United States)

    Russell, David G.; Cardona, Pere-Joan; Kim, Mi-Jeong; Allain, Sophie; Altare, Frédéric

    2009-01-01

    The progression of tuberculosis from a latent, sub-clinical infection to active disease that culminates in transmission of infectious bacilli is determined locally at the level of the granuloma. This progression takes place even in the face of a robust immune response that, while it contains infection, is unable to eliminate the bacterium. The factors or environmental conditions that influence this progression remain to be determined. Recent advances have indicated that pathogen-induced dysregulation of host lipid synthesis and sequestration plays a critical role in this transition. The foamy macrophage appears to be a key player in both sustaining persistent bacteria and contributing to the tissue pathology that leads to cavitation and release of infectious bacilli. PMID:19692995

  1. Central giant cell granuloma: A case report and review

    Directory of Open Access Journals (Sweden)

    Krishnaveni Buduru

    2017-01-01

    Full Text Available Central giant cell granuloma (CGCG is a benign intra-osseous lesion of unknown etiology, and occurs in jaws. Clinically and radiographically difference between its nature - aggressive and non-aggressive can be made. It is characterized histologically by cellular fibrous tissue containing multiple foci of hemorrhage, aggregations of multinucleated giant cells, and occasionally, trabeculae of woven bone. Histologically, identical lesions occur in patients with known genetic defects such as cherubism, Noonan syndrome, or neurofibromatosis type I. It has an increased predilection for mandible and females in younger age group. Surgical curettage or resection is the most common therapy in aggressive lesions. The drawback is undesirable damage to the jaw or teeth, tooth germs, and frequent recurrences. Non-aggressive tumors respond well to such treatments. We are presenting a case of an aggressive type of CGCG of mandible in a young patient, who presented with massive swelling associated with loss of teeth in just 6 months duration.

  2. Case report 424: Eosinophilic granuloma of the acromion

    International Nuclear Information System (INIS)

    Moyer, R.A.; Betz, R.R.; Bonakdarpour, A.

    1987-01-01

    The case has been presented of a unifocal lesion of eosinophilic granuloma in the acromion of a 16-year-old young man. The use of a special technique radiologically in outlining lesions of the acromion was described. Of interest was the fact that the patient appeared at the Temple University Section for Sports Medicine and Science upon experiencing pain following a fishing expedition. In this connection, the frequency of injuries of the shoulder on various Temple University athletic teams was discussed. The value of an isotope scan in establishing a diagnosis was considered and the relationship of the lesion to Hand-Schueller-Christian disease and Letterer-Siwe disease was noted. Treatment also was considered. (orig./MG)

  3. MR imaging of eosinophilic granuloma: report of 11 cases

    Energy Technology Data Exchange (ETDEWEB)

    Schepper, A M.A. de [Department of Medical Imaging, Univ. Hospital, Antwerp, (Belgium)1; Ramon, F [Department of Medical Imaging, Univ. Hospital, Antwerp, (Belgium)1; Marck, E van [Department of Pathology, University Hospital, Antwerp (Belgium)2

    1993-04-01

    The findings in 11 patients with histologically proven eosinophilic granuloma (EG) examined by magnetic resonance imaging (MRI) are described. In contrast with the variable appearance of EG on conventional radiography and computed tomography (CT), relatively constant features - intermediate to high signal intensity on T1-weighting, high signal intensity of T2-weighting, marked enhancement - were found on MRI. MRI was superior to other imaging methods in demonstrating bone marrow involvement and any accompanying soft tissue mass or inflammation. Intermediate to high signal intensity on T1-weighting and marked contrast enhancement could not be 'explained' by histological findings. Prediction of the evolutionary phase of EG by MRI remains questionable because of the phase I (proliferative) histology of all 11 lesions. (orig.)

  4. Laser: A powerful tool for treatment of pyogenic granuloma

    Directory of Open Access Journals (Sweden)

    Shalu Rai

    2011-01-01

    Full Text Available Lasers have opened a new door for the treatment of various disorders. Treatment of soft tissue intraoral mucosal growth by laser has profound effect on the patient acceptability taking the functional and aesthetic factor into consideration. The patient is able to get the outdoor treatment without the phobia of local anaesthetic and is out of the clinic in few minutes in contrast to the traditional method of surgical excision. Very few cases have been reported in literature regarding treatment of mucosal growth by soft tissue lasers. We present a case of recurrent pyogenic granuloma in a patient treated with an alternative approach, that is, diode laser, without the use of anaesthesia, sutures, anti-inflammatory drugs, or analgesics. The diagnosis of this lesion is equally important for correct treatment planning.

  5. The interaction of inflammatory cells in granuloma faciale

    Directory of Open Access Journals (Sweden)

    Takeshi Nakahara

    2010-11-01

    Full Text Available Granuloma faciale (GF is a rare chronic inflammatory skin disease characterized by single or multiple reddish-brown cutaneous plaques or nodules. Although this condition is benign, its clinical course is extremely chronic with poor response to therapy. The typical histopathological features of GF include vasculitis with mixed cellular infiltration; however, its etiopathogenesis remains unknown. Here, we describe the case of a 76-year-old man with GF resistant to topical steroids. Biopsy of the lesion revealed i dense mixed inflammatory cellular infiltrates of lymphocytes, histiocytes, neutrophils, and eosino­phils, ii mild perivascular nuclear dust and swollen endothelium of blood vessels, and iii a narrow Grenz zone beneath the epidermis. Immunohistochemical staining demonstrated mixed cellular infiltrates intermixed with CD1a+ dendritic cells, CD68+ histiocytes, and CD4+ and CD8+ T cells.

  6. Lethal midline granuloma histologically. Management with radiation therapy

    International Nuclear Information System (INIS)

    Barriga T, L.; Misad, O.; Moscol, A.; Pinillos G, L.; Barriga T, O.; Heredia, A.; Pinillos A, L.; Mayer Z, T.

    1995-01-01

    From 1973 through 1990, 24 patients with lethal midline granuloma histologically demonstrated were treated with radiation therapy at the Radiation Oncology Department of the National Institute of Neoplasmic Diseases from Peru. The authors reports the results of their experience, reviewed the literature and present a clinic and pathologic discussion of this rare entity. All the patients received radiotherapy as the main treatment and 12 of them received chemotherapy. The male to female ratio was 5:3 with a mean age of 29.33 years (range 6 to 84 years old). Symptoms of nasal obstruction were presented 45.83%, nasal enlargement in 33.33%, nasal discharge in 29.16% and fever in 29.16%, principally. We believe that radiotherapy is the treatment of choice in this report we can not demonstrate it because of the small number of patients. (authors). 28 refs., 10 tabs

  7. Giant cell reparative granuloma of the occipital bone

    International Nuclear Information System (INIS)

    Santos-Briz, A.; Ricoy, J.R.; Martinez-Tello, F.J.; Lobato, R.D.; Ramos, A.; Millan, J.M.

    2003-01-01

    Giant cell reparative granuloma (GCRG) is a non-neoplastic fibrous lesion with unevenly distributed multinucleated giant cells, areas of osseous metaplasia and hemorrhage. The small bones of the hands and feet are the most common sites, followed by the vertebral bodies and craniofacial bones. In the craniofacial bones GCRG has been reported in the temporal bone, in the frontal bone and paranasal sinus. However, to the best of our knowledge no case has been reported in the occipital bone. We report on the imaging findings and pathological features of a GCRG of the occipital bone and discuss the differential diagnosis of this entity in this particular location, especially with giant cell tumor because of the therapeutic and prognostic implications. (orig.)

  8. Teflon granulomas mimicking cerebellopontine angle tumors following microvascular decompression.

    Science.gov (United States)

    Deep, Nicholas L; Graffeo, Christopher S; Copeland, William R; Link, Michael J; Atkinson, John L; Neff, Brian A; Raghunathan, Aditya; Carlson, Matthew L

    2017-03-01

    To report two patients with a history of microvascular decompression (MVD) for hemifacial spasm who presented with Teflon granulomas (TG) mimicking cerebellopontine angle (CPA) tumors and to perform a systematic review of the English-language literature. Case series at a single tertiary academic referral center and systematic review. Retrospective chart review with analysis of clinical, radiological, and histopathological findings. Systematic review using PubMed, Embase, MEDLINE, and Web of Science databases. Two patients with large skull base TGs mimicking CPA tumors clinically and radiographically were managed at the authors' institution. The first presented 4 years after MVD with asymmetrical sensorineural hearing loss, multiple progressive cranial neuropathies, and brainstem edema due to a growing TG. Reoperation with resection of the granuloma confirmed a foreign-body reaction consisting of multinucleated giant cells containing intracytoplasmic Teflon particles. The second patient presented 11 years after MVD with asymmetrical sensorineural hearing loss and recurrent hemifacial spasm. No growth was noted over 2 years, and the patient has been managed expectantly. Only one prior case of TG after MVD for hemifacial spasm has been reported in the English literature. TG is a rare complication of MVD for hemifacial spasm. The diagnosis should be suspected in patients presenting with a new-onset enhancing mass of the CPA after MVD, even when performed decades earlier. A thorough clinical and surgical history is critical toward establishing an accurate diagnosis to guide management and prevent unnecessary morbidity. Surgical intervention is not required unless progressive neurologic complications ensue. 4 Laryngoscope, 127:715-719, 2017. © 2016 The American Laryngological, Rhinological and Otological Society, Inc.

  9. Pulmonary Hypertension and Pulmonary Vasodilators.

    Science.gov (United States)

    Keller, Roberta L

    2016-03-01

    Pulmonary hypertension in the perinatal period can present acutely (persistent pulmonary hypertension of the newborn) or chronically. Clinical and echocardiographic diagnosis of acute pulmonary hypertension is well accepted but there are no broadly validated criteria for echocardiographic diagnosis of pulmonary hypertension later in the clinical course, although there are significant populations of infants with lung disease at risk for this diagnosis. Contributing cardiovascular comorbidities are common in infants with pulmonary hypertension and lung disease. It is not clear who should be treated without confirmation of pulmonary vascular disease by cardiac catheterization, with concurrent evaluation of any contributing cardiovascular comorbidities. Copyright © 2016 Elsevier Inc. All rights reserved.

  10. Pacing Lead-Induced Granuloma in the Atrium: A Foreign Body Reaction to Polyurethane

    Directory of Open Access Journals (Sweden)

    Shinagawa Yoko

    2013-01-01

    Full Text Available We described a case of an 82-year-old male who presented with a granuloma entrapping the polyurethane-coated pacing lead at the site of contact on the atrium. He had been paced for 8 years without symptoms or signs suggestive of an allergic reaction to the pacemaker system and died from thrombosis of the superior mesenteric artery and heart failure. A histological examination of the nodule showed an incidental granuloma with multinucleated giant cells. No granuloma was found in the heart or the lung.

  11. A woman with juxta-articular nodules—An uncommon form of subcutaneous granuloma annulare

    Directory of Open Access Journals (Sweden)

    Lili Wang

    2014-06-01

    Full Text Available Granuloma annulare is a benign inflammatory dermatosis that is most common in children and young adults. The subcutaneous form of granuloma annulare, which occurs mainly on the extremities in children, is rare. Lesions usually occur as painless subcutaneous nodules without inflammation of the cutaneous surface; the most frequent sites are the legs, buttocks, and scalp. Nevertheless, we present a case of subcutaneous granuloma annulare confined to the dorsa of the hand joints and right knee in a 51-year-old woman.

  12. The development of hyaline-cell cartilage in the head of the black molly, Poecilia sphenops. Evidence for secondary cartilage in a teleost.

    OpenAIRE

    Benjamin, M

    1989-01-01

    The development of hyaline-cell cartilage attached to membrane (dentary, maxilla, nasal, lacrimal and cleithrum) and cartilage (basioccipital) bones has been studied in the viviparous black molly, Poecilia sphenops. Intramembranous ossification commences before the first appearance of hyaline cells. As hyaline-cell cartilage is densely cellular and as that attached to the dentary, maxilla and cleithrum develops from the periosteum of these membrane bones, it must be regarded as secondary cart...

  13. Introduction to Pulmonary Fibrosis

    Science.gov (United States)

    ... page: Introduction to Pulmonary Fibrosis What Is Pulmonary Fibrosis? Pulmonary fibrosis is a disease where there is scarring ... of pulmonary fibrosis. Learn more How Is Pulmonary Fibrosis Diagnosed? Pulmonary fibrosis can be difficult to diagnose, so it ...

  14. Vocal fold granulomas in six brachycephalic dogs: clinical, macroscopical and histological features.

    Science.gov (United States)

    Sarran, D; Caron, A; Billet, J P

    2018-06-05

    Vocal cord granulomas are rarely observed in brachycephalic breeds but often reported in humans as contact granulomas. Six French bulldogs were included in this retrospective descriptive study. Endoscopic laryngeal examinations were performed on all dogs under general anaesthesia. Vocal cord lesions were exclusively unilateral, exophytic, approximately 3-mm wide ulcerated mucosal nodules, arising from the vocal cord. Histopathological examination mainly revealed chronic inflammatory changes on the laryngeal epithelium which were consistent with laryngeal granulomas described in humans, except for the location: vocal cord in dogs versus vocal process in humans. In humans, granulomas result from chronic physical or chemical insult to laryngeal mucosa (chronic cough or throat clearing, vocal abuse, gastro-esophageal reflux). In brachycephalic breeds, chronic inspiratory efforts and air turbulences and gastro-esophageal reflux are suspected to result in chronic laryngeal inflammation. © 2018 British Small Animal Veterinary Association.

  15. Tolerance of brightness and contrast adjustments on chronic apical abscess and apical granuloma interpretation

    Science.gov (United States)

    Purnamasari, L.; Iskandar, H. H. B.; Makes, B. N.

    2017-08-01

    In digitized radiography techniques, adjusting the image enhancement can improve the subjective image quality by optimizing the brightness and contrast for diagnostic needs. To determine the value range of image enhancement (brightness and contrast) on chronic apical abscess and apical granuloma interpretation. 30 periapical radiographs that diagnosed chronic apical abscess and 30 that diagnosed apical granuloma were adjusted by changing brightness and contrast values. The value range of brightness and contrast adjustment that can be tolerated in radiographic interpretations of chronic apical abscess and apical granuloma spans from -10 to +10. Brightness and contrast adjustments on digital radiographs do not affect the radiographic interpretation of chronic apical abscess and apical granuloma if conducted within the value range.

  16. A Case of Unifocal Eosinophilic Granuloma of the Mandible in an Adult Female: A Case Report

    Directory of Open Access Journals (Sweden)

    Anshita Agarwal

    2012-01-01

    Full Text Available Eosinophilic granuloma of bone is a disease with an incidence of one new case per 350,000 to 2 million per year, which is an uncommon disease of maxillofacial region, and presents in more than 90% in children under the age of ten with predominance for males. As a result, eosinophilic granuloma of the jaw is always unconsidered in the differential diagnosis of similar lesions by many clinicians. It is difficult to make a correct diagnosis on it without proof of a pathological diagnosis, which correlates with the diverse clinical and radiographic presentations of eosinophilic granuloma in the jaws. In the present paper we report a rare case of unifocal eosinophilic granuloma of mandible occurring in an adult female.

  17. Radiotherapy of the solitary and multiple eosinophilic granuloma of the bone (stage I)

    International Nuclear Information System (INIS)

    Wiegel, T.; Sommer, K.; Baumann, M.; Kruell, A.; Huebener, K.H.; Knop, J.; Reuter, M.

    1991-01-01

    Between 1957 and 1990 15 patients with solitary (stage Ia by Greenberger) and 2 patients with mulitple (stage Ib) eosinophilic granuloma of the bone were treated by radiotherapy in 18 locations after previous surgery. The doses applied varied from 6 Gy to 42 Gy (median for patients under 18 years: 8 Gy, for patients over 18 years: 30 Gy). Median follow-up was 9 years (range, 0,3-33 years). Local control rate and survival were 100%. Three patients with granuloma developed a second granuloma within 13 years after primary diagnosis (two bone manifestations, one cutaneous manifestation). Long term follow-up of patients with solitary eosinophilic granuloma is neccessary. (orig.) [de

  18. The role of Hsp0, CD-8 and IFN-γ in immunopathobiogenesis of periapical granuloma in dental caries

    Directory of Open Access Journals (Sweden)

    Risya Cilmiaty

    2014-03-01

    Full Text Available Background: The incidence of dental caries with periapical granulomas in Indonesia is quite high. However, the mechanism of the formation of periapical granulomas in dental caries caused by bacterial infection in immunopathobiogenesis cannot be explained completely. Thus, this explanation is necessary in order to be used as a basis for diagnostic, preventive and therapeutic measures. Purpose: This research was aimed to determine the role of Hsp60, CD-8 and IFN-γ in immunopatobiogenesis of periapical granuloma in dental caries. Methods: This research was an analytic observational study with cross sectional approach. Samples of this research were 36 teeth of patients with dental caries, consisting of 18 caries teeth with periapical granulomas and 18 caries teeth without periapical granulomas. The variables observed in this research were Hsp60, CD-8 and IFN-γ. Measurements were conducted by using immunohistochemical methods on periapical tissue. Results: The mean of Hsp60, CD-8 and IFN-γ in granuloma group was significantly higher than those in non granuloma group (p<0.05. The positive role of IFN-γ on the incidence of granulomas appeared to be more prominent. Conclusion: The study suggested that in immunopathobiogenesis of periapical granuloma in dental caries, Hsp60, CD-8 and IFN-γ played important roles, but the role of IFN-γ was found to be more prominent.Latar belakang: Angka kejadian gigi karies dengan granuloma periapikal di Indonesia cukup tinggi, Namun mekanisme terbentuknya granuloma periapikal pada gigi karies yang disebabkan oleh infeksi bakteri secara imunopatobiogenesis belum dapat dijelaskan secara tuntas. Adanya penjelasan ini diperlukan agar dapat digunakan sebagai dasar pengembangan diagnosis, langkah preventif dan terapinya. Tujuan: Penelitian ini bertujuan untuk mengetahui peran Hsp60, CD-8 dan IFN-γ dalam immunopatobiogenesis dari granuloma periapikal karies gigi. Metode: Penelitian ini merupakan penelitian observasional

  19. Developments in dynamic MR elastography for in vitro biomechanical assessment of hyaline cartilage under high-frequency cyclical shear.

    Science.gov (United States)

    Lopez, Orlando; Amrami, Kimberly K; Manduca, Armando; Rossman, Phillip J; Ehman, Richard L

    2007-02-01

    The design, construction, and evaluation of a customized dynamic magnetic resonance elastography (MRE) technique for biomechanical assessment of hyaline cartilage in vitro are described. For quantification of the dynamic shear properties of hyaline cartilage by dynamic MRE, mechanical excitation and motion sensitization were performed at frequencies in the kilohertz range. A custom electromechanical actuator and a z-axis gradient coil were used to generate and image shear waves throughout cartilage at 1000-10,000 Hz. A radiofrequency (RF) coil was also constructed for high-resolution imaging. The technique was validated at 4000 and 6000 Hz by quantifying differences in shear stiffness between soft ( approximately 200 kPa) and stiff ( approximately 300 kPa) layers of 5-mm-thick bilayered phantoms. The technique was then used to quantify the dynamic shear properties of bovine and shark hyaline cartilage samples at frequencies up to 9000 Hz. The results demonstrate that one can obtain high-resolution shear stiffness measurements of hyaline cartilage and small, stiff, multilayered phantoms at high frequencies by generating robust mechanical excitations and using large magnetic field gradients. Dynamic MRE can potentially be used to directly quantify the dynamic shear properties of hyaline and articular cartilage, as well as other cartilaginous materials and engineered constructs. (c) 2007 Wiley-Liss, Inc.

  20. Granuloma actínico de O'Brien: apresentação clínica exuberante O'Brien's actinic granuloma: an unusually extensive presentation

    Directory of Open Access Journals (Sweden)

    Rosana Lazzarini

    2011-04-01

    Full Text Available O granuloma actínico de O'Brien é uma doença cutânea rara. Há muitas controvérsias na sua caracterização, podendo representar uma entidade nosológica distinta ou uma forma de granuloma anular em áreas expostas. A patogênese é desconhecida; no entanto, acredita-se que a radiação solar seja um fator desencadeante. Os autores relatam o caso de um paciente de 78 anos, branco, que apre sentava há 10 anos pápulas eritematosas e infiltradas na fronte e hemiface à esquerda. O diagnóstico de granuloma actínico de O'Brien foi estabelecido a partir do exame histopatológico, uma vez que o quadro clínico exuberante apresentado pelo paciente diferia do de casos anteriormente observados.O'Brien's actinic granuloma is a rare skin disease. Controversy continues over whether it should be considered a specific condition or a form of granuloma annulare located in sun-exposed areas. Its pathogenesis is unknown; however, the most widely accepted hypothesis suggests that solar radiation is the triggering factor. This paper describes the case of a 78-year old, fair-skinned male, who presented with a 10-year history of an infiltrate of annular erythematous papules on his forehead and left malar region. The diagnosis of O'Brien actinic granuloma was established from histopathology, since the clinical condition of the patient was extensive, unlike cases reported in the literature.

  1. Sequential Expression of the Neuropeptides Substance P and Somatostatin in Granulomas Associated with Murine Cysticercosis

    OpenAIRE

    Robinson, Prema; White, A. Clinton; Lewis, Dorothy E.; Thornby, John; David, Elliott; Weinstock, Joel

    2002-01-01

    Neurocysticercosis, a parasitic infection of the human central nervous system caused by Taenia solium, is a leading cause of seizures. Seizures associated with neurocysticercosis are caused mainly by the host inflammatory responses to dying parasites in the brain parenchyma. We previously demonstrated sequential expression of Th1 cytokines in early-stage granulomas, followed by expression of Th2 cytokines in later-stage granulomas in murine cysticercosis. However, the mechanism leading to thi...

  2. Giant Cell Reparative Granuloma Mimicking Aneurysmal Bone Cyst in Proximal Phalanx of Toe

    Directory of Open Access Journals (Sweden)

    Huan CM

    2016-03-01

    Full Text Available Giant Cell Reparative Granuloma (GCRG of phalanx is uncommon. It is a benign osteolytic lesion but can be locally aggressive. GCRG has certain radiology and histological features that are similar to other giant cell lesions of the bone. We present a case report of a young patient with giant cell reparative granuloma of proximal phalanx of left third toe. The bone lesion was successfully treated surgically.

  3. Generalized Granuloma Annulare in Infancy Following Bacillus Calmette-Guerin Vaccination

    OpenAIRE

    Lee, Sang Woo; Cheong, Seung Hyun; Byun, Ji Yeon; Choi, You Won; Choi, Hae Young; Myung, Ki Bum

    2011-01-01

    Generalized granuloma annulare (GGA) is a rare benign granulomatous dermatosis characterized by disseminated necrobiotic dermal papules. Histologically, it presents as a lymphohistiocytic granuloma associated with varying degrees of connective tissue degeneration. It usually occurs in adults and rarely affects infants. Herein, we report an interesting case of GGA which occurred in a 3 month-old girl in association with Bacillus Calmette-Guerin vaccination.

  4. Oral plasma cell granuloma: A case report of an ambiguous lesion

    Directory of Open Access Journals (Sweden)

    Manveen Kaur Jawanda

    2014-01-01

    Full Text Available Plasma cell granuloma (PCG is a rare reactive tumor such as proliferation composed chiefly of plasmacytic infiltrate. Both clinically and histopathologically, it may be misinterpreted as various pathological entities thus necessitating the complete evaluation of patient and proper histopathological and immunohistochemical analysis of the tissue to rule out other lesions with poor prognosis. Here, we present a case of PCG of gingiva in a female patient masquerading as pyogenic granuloma clinically and plasma cell neoplasms histopathologically.

  5. Primary cutaneous anaplastic large cell lymphoma masquerading as large pyogenic granuloma

    Directory of Open Access Journals (Sweden)

    Anupama Bains

    2016-01-01

    Full Text Available Primary cutaneous anaplastic large cell lymphoma (pcALCL forms 9% of the cutaneous T-cell lymphomas. It usually presents as solitary reddish brown ulcerating nodule or indurated plaque. Sometimes, it mimics other dermatological diseases such as eczema, pyoderma gangrenosum, pyogenic granuloma, morphea, and squamous cell carcinoma. Our case presented with large pyogenic granuloma like lesion with regional lymphadenopathy. Since pcALCL is rare, one can misdiagnose such cases and therefore high index of suspicion is necessary.

  6. MR Spectroscopy and Perfusion MR Imaging Findings of Intracranial Foreign Body Granuloma: a Case Report

    Energy Technology Data Exchange (ETDEWEB)

    Jang, Seung Won; Kim, Sang Joon; Kim, Sun Mi; Lee, Jeong Hyun; Choi, Choong Gon; Lee, Deok Hee; Lee, Jung Kyo [University of Ulsan College of Medicine, Asan Medical Center, Seoul (Korea, Republic of); Kim, Eun Ju [Philips Healthcare, Seoul (Korea, Republic of)

    2010-06-15

    We report a case of intracranial foreign body granuloma that showed features of a high grade tumor on magnetic resonance (MR) imaging. However, the relative cerebral blood volume was not increased in the enhancing mass on perfusion MRI and the choline/creatine ratio only slightly increased on MR spectroscopy. The results suggest that the lesion is benign in nature. Perfusion MRI and MR spectroscopy may be helpful to differentiate a foreign body granuloma from a neoplastic condition

  7. Giant cell granuloma of the maxilla - a case report and review of the literature

    International Nuclear Information System (INIS)

    Setubal, Roger; Menezes, Benedito; Carvalho, Marcos Brasilino de; Soares, Aldemir Humberto; Souza, Ricardo Pires de

    1997-01-01

    Giant cell granuloma is an uncommon lesion of the giant cell lesion's group, which includes brown tumor of hyperparathyroidism, true giant cell tumor, cherubism and aneurysmal bone cyst. their histologic features are very similar and make certain types indistinguishable from each other, remaining a considerable controversy on its classification. The authors report a case of giant cell maxillary granuloma and makes a review of the literature. (author)

  8. Study of MR sequence in detecting hyaline cartilage defects of the knee joint

    International Nuclear Information System (INIS)

    Li Songbai; He Cuiju; Sun Wenge; Li Chunkui; Qi Xixun; Li Yanliang; Xu Ke; Bai Xizhuang; Wu Zhenhua

    2003-01-01

    Objective: To evaluate the value of various MR imaging sequences for detecting hyaline cartilage defects. Methods: Ten animal models of cartilage defect were established in 5 pig knees. 5 knees were examined with nine different MR sequences. The signal noise ratio of cartilage and contrast noise ratio were calculated and compared between cartilage and adjacent tissue. Measurement of the defect depth and width on the imaging was correlated with the actual measurement before imaging. 23 patients with hyaline cartilage defects of the knee were evaluated with MR imaging. All these patients underwent subsequent arthroscopy. MR imaging protocol included the selected sequences in the experimental study. Results: The cartilage SNR was better in FSE PD, FS 3D FSPGR, and FS FSE PD sequences. CNR between cartilage and subcartilaginous bone was best in FS 3D FSPGR and FS FSE PD sequences. CNR between cartilage and joint fluid was best in FS 3D FSPGR and FS FSE T 2 WI sequences. CNR between cartilage and meniscus and ligament was best in FS 3D FSPGR, FS FSE PD, SE T 1 WI, and IR TI700 sequences. CNR between cartilage and fat was best in FS 3D FSPGR and SE T 1 WI sequences. The width and depth correlation was best in IR TI700 sequence, which showed the statistical significance (P 2 WI sequence, 68%, 99%, and 0.74, respectively with IR TI700 sequence. Conclusion: The sensitivity of FS 3D FSPGR sequence in detecting hyaline cartilage defect is the highest. T 1 WI of spin echo sequence and T 2 WI/PDWI of fast spin-echo with fat saturation should be the standard sequence in the examination of knee joint. T 1 WI of IR sequence has potential clinical value for cartilage examination

  9. A comparison of different bioinks for 3D bioprinting of fibrocartilage and hyaline cartilage.

    Science.gov (United States)

    Daly, Andrew C; Critchley, Susan E; Rencsok, Emily M; Kelly, Daniel J

    2016-10-07

    Cartilage is a dense connective tissue with limited self-repair capabilities. Mesenchymal stem cell (MSC) laden hydrogels are commonly used for fibrocartilage and articular cartilage tissue engineering, however they typically lack the mechanical integrity for implantation into high load bearing environments. This has led to increased interested in 3D bioprinting of cell laden hydrogel bioinks reinforced with stiffer polymer fibres. The objective of this study was to compare a range of commonly used hydrogel bioinks (agarose, alginate, GelMA and BioINK™) for their printing properties and capacity to support the development of either hyaline cartilage or fibrocartilage in vitro. Each hydrogel was seeded with MSCs, cultured for 28 days in the presence of TGF-β3 and then analysed for markers indicative of differentiation towards either a fibrocartilaginous or hyaline cartilage-like phenotype. Alginate and agarose hydrogels best supported the development of hyaline-like cartilage, as evident by the development of a tissue staining predominantly for type II collagen. In contrast, GelMA and BioINK ™ (a PEGMA based hydrogel) supported the development of a more fibrocartilage-like tissue, as evident by the development of a tissue containing both type I and type II collagen. GelMA demonstrated superior printability, generating structures with greater fidelity, followed by the alginate and agarose bioinks. High levels of MSC viability were observed in all bioinks post-printing (∼80%). Finally we demonstrate that it is possible to engineer mechanically reinforced hydrogels with high cell viability by co-depositing a hydrogel bioink with polycaprolactone filaments, generating composites with bulk compressive moduli comparable to articular cartilage. This study demonstrates the importance of the choice of bioink when bioprinting different cartilaginous tissues for musculoskeletal applications.

  10. Risk factors for granuloma formation in children induced by tracheobronchial foreign bodies.

    Science.gov (United States)

    Huang, Zhenghua; Zhou, Ai; Zhang, Jianya; Xie, Lisheng; Li, Qi

    2015-12-01

    The aim of this study was to analyze the risk factors for granuloma formation caused by plant-based tracheobronchial foreign bodies in children, and investigate the underlying pathogenesis. In this retrospective analysis of 153 cases with tracheobronchial foreign bodies (peanuts and watermelon seeds), 35 cases of granuloma formation as granulation group (G), and 118 cases of no granuloma formation as non-granulation group (NG) were studied. Clinical data pertaining to sex (S), age (A), foreign body surface smoothness (SF), foreign body shape (SH), foreign body oil release state (O), the location of foreign bodies (L), and foreign body retention time (T) were collected for statistical analysis. Univariate analysis showed no significant difference between the two groups (G and NG) with respect to S, A, SH and L. Significant factors based on univariate analysis included SF, O and T. Multivariate logistic regression analysis revealed that SF and T were independent risk factors associated with development of granuloma. SF, O and T had relationship with the granuloma formation. Local trauma caused by an irregular and sharp foreign body, and extended period of time represent the main factors causing granuloma formation. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  11. Macrophage and T cell dynamics during the development and disintegration of mycobacterial granulomas.

    Science.gov (United States)

    Egen, Jackson G; Rothfuchs, Antonio Gigliotti; Feng, Carl G; Winter, Nathalie; Sher, Alan; Germain, Ronald N

    2008-02-01

    Granulomas play a key role in host protection against mycobacterial pathogens, with their breakdown contributing to exacerbated disease. To better understand the initiation and maintenance of these structures, we employed both high-resolution multiplex static imaging and intravital multiphoton microscopy of Mycobacterium bovis BCG-induced liver granulomas. We found that Kupffer cells directly capture blood-borne bacteria and subsequently nucleate formation of a nascent granuloma by recruiting both uninfected liver-resident macrophages and blood-derived monocytes. Within the mature granuloma, these myeloid cell populations formed a relatively immobile cellular matrix that interacted with a highly dynamic effector T cell population. The efficient recruitment of these T cells was highly dependent on TNF-alpha-derived signals, which also maintained the granuloma structure through preferential effects on uninfected macrophage populations. By characterizing the migration of both innate and adaptive immune cells throughout the process of granuloma development, these studies provide a new perspective on the cellular events involved in mycobacterial containment and escape.

  12. Monthly rifampicin, ofloxacin, and minocycline therapy for generalized and localized granuloma annulare

    Directory of Open Access Journals (Sweden)

    Shilpa Garg

    2015-01-01

    Full Text Available Background: The localized form of granuloma annulare is usually self-limiting, resolving within 2 years. Generalized granuloma annulare, on the other hand, runs a protracted course, with spontaneous resolution being rare. It is also characterized by a later age of onset, an increased incidence of diabetes mellitus, poor response to therapy, and an increased prevalence of HLA Bw35. Objective: To assess the efficacy of monthly pulsed rifampicin, ofloxacin, and minocycline (ROM therapy in the management of granuloma annulare. Methods : Six biopsy proven patients of granuloma annulare were included in the study, five of the generalized variety, and one localized. Three of these patients were resistant to standard modalities of treatment. All six patients were treated with pulses of once monthly ROM till complete resolution of all lesions. Results were analyzed in terms of complete resolution of lesions and side effects. Presence of comorbid conditions was noted. Result: All six patients were successfully treated with 4-8 pulses of monthly ROM. None of the patients reported any adverse effects. Limitations: Small sample size and the lack of a control group are limitations. Conclusion: Treatment with pulses of once monthly ROM caused complete resolution of lesions in both localized and generalized granuloma annulare, even in cases recalcitrant to conventional therapy. There were no side effects in any of the patients. Larger trials are needed to substantiate the efficacy of monthly ROM in granuloma annulare.

  13. [Prostatic granulomas revealing a peripheral T-cell lymphoma].

    Science.gov (United States)

    Foguem, C; Curlier, E; Rouamba, M-M; Regent, A; Philippe, P

    2009-02-01

    The presence of granulomas on tissue biopsie has been reported in a wide range of disorders. The clinical presentation and the diagnostic work-up of granulomatosis can be difficult as it is illustrated in the following report. A 59-year-old patient was referred in 2002 for a granulomatous prostatitis. Physical examination was normal. Except for the increase of prostate-specific antigen (which motivated a biopsy), the laboratory results were normal. Thoracic CT-scan disclosed mediastinal lymph nodes. A minor salivary gland biopsy was consistent with the diagnosis of sarcoidosis. In 2004, the patient presented an epidermal necrolysis, and in 2005 the deterioration of general status raised suspicion of a lymphoproliferative disorder. Liver and bone marrow biopsies revealed a granulomatous process. Despite steroid therapy, the patient died. Autopsy discloses a anaplasic T cell lymphoma. This report illustrates the relationship between sarcoidosis and lymphoma as a mode of presentation, a complication, or an accidental but misleading association? The association between anaplastic lymphoma and sarcoidosis is exceptional.

  14. Heparanase expression in periapical granulomas and radicular cysts.

    Science.gov (United States)

    Elad, S; Sherman, Y; Palmon, A; Vlodavsky, I; Or, R

    2013-01-01

    Heparanase is an endo-β-D-glucuronidase enzyme which degrades heparan sulfate glycosaminoglycan side chains of proteoglycans in the extracellular matrix and in basement membranes. The aim of this study was to evaluate the expression of heparanase in periapical granulomas (PGs) and radicular cysts (RCs). Immunohistochemistry was used to assess heparanase expression in PGs and RCs. Parameters including stain intensity, location and cell type were used to characterize heparanase expression in the periapical lesions. Ordered categories (from weak to strong) were used to compare the level of heparanase staining in the PG and RC groups. Both epithelial cells and inflammatory cells were positive for heparanase. The relative staining of the epithelial cells was strong, whereas the relative staining of the inflammatory cells was weak. Significant differences in immunohistochemical staining of epithelial cells were observed between RCs and PGs (p = 0.002). The relative expression of heparanase in epithelial cells in RCs was strong. In PGs, lesions with few or no epithelial cells, heparanase was predominantly expressed weakly by inflammatory cells. PGs and RCs have the same infectious origin. Therefore, the different cellular sources of heparanase in these periapical lesions may imply that this enzyme has specific pathogenetic functions in RCs and PGs.

  15. Does subepithelial hemorrhage cause persistence of laryngeal granuloma?

    Science.gov (United States)

    Yumoto, Eiji; Sanuki, Tetsuji; Miyamaru, Satoru; Kumai, Yoshihiko

    2008-05-01

    To determine the incidence of black spots after resolution of laryngeal granuloma (LG), to compare the disease duration from the beginning of treatment to resolution between patients with and without black spots, and to assess the histologic findings of LG in resected or biopsied specimens. Retrospective. Forty-six patients with LG on the cartilaginous portion of the vocal fold were included. Their clinical records were reviewed. Histologic specimens were re-examined. Causes of LG were postintubation in 10 patients, unilateral vocal fold immobility in 1, Candida infection in 1, and were not specified in 34 (either hyperfunctional vocal abuse, laryngopharyngeal regurgitation, or both). Of the 10 patients with postintubation LG, 9 resolved; of the 33 patients with LG from other causes, 21 resolved. Of the 28 resolved patients, 12 developed a black spot at the previous lesion site. Of the 18 patients whose LG resolved without surgical intervention, 11 developed a black spot at the previous lesion site, and the remaining 7 patients did not develop any black spots. The treatment period until LG resolution was significantly longer among patients with a black spot than those without a spot (P = .0372). Histologic examination revealed the presence of hemosiderin accumulation accompanied by infiltration of lymphocytes and macrophages in 8 of the 16 patients who had their LGs resected or biopsied. Accumulation of hemosiderin in the subepithelial layer, together with little blood flow and dense connective tissue in the cartilaginous portion of the vocal fold, are important factors contributing to the persistence of LG.

  16. Generation of Scaffoldless Hyaline Cartilaginous Tissue from Human iPSCs

    Directory of Open Access Journals (Sweden)

    Akihiro Yamashita

    2015-03-01

    Full Text Available Defects in articular cartilage ultimately result in loss of joint function. Repairing cartilage defects requires cell sources. We developed an approach to generate scaffoldless hyaline cartilage from human induced pluripotent stem cells (hiPSCs. We initially generated an hiPSC line that specifically expressed GFP in cartilage when teratoma was formed. We optimized the culture conditions and found BMP2, transforming growth factor β1 (TGF-β1, and GDF5 critical for GFP expression and thus chondrogenic differentiation of the hiPSCs. The subsequent use of scaffoldless suspension culture contributed to purification, producing homogenous cartilaginous particles. Subcutaneous transplantation of the hiPSC-derived particles generated hyaline cartilage that expressed type II collagen, but not type I collagen, in immunodeficiency mice. Transplantation of the particles into joint surface defects in immunodeficiency rats and immunosuppressed mini-pigs indicated that neocartilage survived and had potential for integration into native cartilage. The immunodeficiency mice and rats suffered from neither tumors nor ectopic tissue formation. The hiPSC-derived cartilaginous particles constitute a viable cell source for regenerating cartilage defects.

  17. Generation of scaffoldless hyaline cartilaginous tissue from human iPSCs.

    Science.gov (United States)

    Yamashita, Akihiro; Morioka, Miho; Yahara, Yasuhito; Okada, Minoru; Kobayashi, Tomohito; Kuriyama, Shinichi; Matsuda, Shuichi; Tsumaki, Noriyuki

    2015-03-10

    Defects in articular cartilage ultimately result in loss of joint function. Repairing cartilage defects requires cell sources. We developed an approach to generate scaffoldless hyaline cartilage from human induced pluripotent stem cells (hiPSCs). We initially generated an hiPSC line that specifically expressed GFP in cartilage when teratoma was formed. We optimized the culture conditions and found BMP2, transforming growth factor β1 (TGF-β1), and GDF5 critical for GFP expression and thus chondrogenic differentiation of the hiPSCs. The subsequent use of scaffoldless suspension culture contributed to purification, producing homogenous cartilaginous particles. Subcutaneous transplantation of the hiPSC-derived particles generated hyaline cartilage that expressed type II collagen, but not type I collagen, in immunodeficiency mice. Transplantation of the particles into joint surface defects in immunodeficiency rats and immunosuppressed mini-pigs indicated that neocartilage survived and had potential for integration into native cartilage. The immunodeficiency mice and rats suffered from neither tumors nor ectopic tissue formation. The hiPSC-derived cartilaginous particles constitute a viable cell source for regenerating cartilage defects. Copyright © 2015 The Authors. Published by Elsevier Inc. All rights reserved.

  18. Two new hyaline-ascospored species of Trichoderma and their phylogenetic positions.

    Science.gov (United States)

    Qin, W T; Zhuang, W Y

    2016-01-01

    Collections of hypocrealean fungi found on decaying wood in subtropical regions of China were examined. Two new species, Trichoderma confluens and T. hubeiense, were discovered and are described. Trichoderma confluens is characterized by its widely effuse to rarely pulvinate, yellow stromata with densely disposed yellowish brown ostioles, simple acremonium- to verticillium-like conidiophores, hyaline conidia and multiform chlamydospores. Trichoderma hubeiense has pulvinate, grayish yellow stromata with brownish ostioles, trichoderma- to verticillium-like conidiophores and hyaline conidia. The phylogenetic positions of the two fungi were investigated based on sequence analyses of RNA polymerase II subunit b and translation elongation factor 1-α genes. The results indicate that T. confluens belongs to the Hypocreanum clade and is associated with but clearly separated from T. applanatum and T. decipiens. Trichoderma hubeiense belongs to the Polysporum clade and related to T. bavaricum but obviously differs from other members of the clade in sequence data. Morphological distinctions between the new species and their close relatives are noted and discussed. © 2016 by The Mycological Society of America.

  19. Sprifermin (rhFGF18) enables proliferation of chondrocytes producing a hyaline cartilage matrix.

    Science.gov (United States)

    Gigout, A; Guehring, H; Froemel, D; Meurer, A; Ladel, C; Reker, D; Bay-Jensen, A C; Karsdal, M A; Lindemann, S

    2017-11-01

    Fibroblast growth factor (FGF) 18 has been shown to increase cartilage volume when injected intra-articularly in animal models of osteoarthritis (OA) and in patients with knee OA (during clinical development of the recombinant human FGF18, sprifermin). However, the exact nature of this effect is still unknown. In this study, we aimed to investigate the effects of sprifermin at the cellular level. A combination of different chondrocyte culture systems was used and the effects of sprifermin on proliferation, the phenotype and matrix production were evaluated. The involvement of MAPKs in sprifermin signalling was also studied. In monolayer, we observed that sprifermin promoted a round cell morphology and stimulated both cellular proliferation and Sox9 expression while strongly decreasing type I collagen expression. In 3D culture, sprifermin increased the number of matrix-producing chondrocytes, improved the type II:I collagen ratio and enabled human OA chondrocytes to produce a hyaline extracellular matrix (ECM). Furthermore, we found that sprifermin displayed a 'hit and run' mode of action, with intermittent exposure required for the compound to fully exert its anabolic effect. Finally, sprifermin appeared to signal through activation of ERK. Our results indicate that intermittent exposure to sprifermin leads to expansion of hyaline cartilage-producing chondrocytes. These in vitro findings are consistent with the increased cartilage volume observed in the knees of OA patients after intra-articular injection with sprifermin in clinical studies. Copyright © 2017 The Authors. Published by Elsevier Ltd.. All rights reserved.

  20. Hyaline cartilage involvement in patients with gout and calcium pyrophosphate deposition disease. An ultrasound study.

    Science.gov (United States)

    Filippucci, E; Riveros, M Gutierrez; Georgescu, D; Salaffi, F; Grassi, W

    2009-02-01

    The main aim of the present study was to determine the sensitivity, specificity and accuracy of ultrasonography (US) in detecting monosodium urate and calcium pyrophosphate dihydrate crystals deposits at knee cartilage level using clinical definite diagnosis as standard reference. A total of 32 patients with a diagnosis of gout and 48 patients with pyrophosphate arthropathy were included in the study. Fifty-two patients with rheumatoid arthritis (RA), psoriatic arthritis or osteoarthritis (OA) were recruited as disease controls. All diagnoses were made using an international clinical criterion. US examinations were performed by an experienced sonographer, blind to clinical and laboratory data. Hyaline cartilage was assessed to detect two US findings recently indicated as indicative of crystal deposits: hyperechoic enhancement of the superficial margin of the hyaline cartilage and hyperechoic spots within the cartilage layer not generating a posterior acoustic shadow. Hyperechoic enhancement of the chondrosynovial margin was found in at least one knee of 14 out of 32 (43.7%) patients with gout and in a single knee of only one patient affected by pyrophosphate arthropathy (specificity=99%). Intra-cartilaginous hyperechoic spots were detected in at least one knee of 33 out of 48 (68.7%) patients with pyrophosphate arthropathy and in two disease controls one with OA and the second with RA (specificity=97.6%). The results of the present study indicate that US may play a relevant role in distinguishing cartilage involvement in patients with crystal-related arthropathy. The selected US findings were found to be highly specific.

  1. Talocalcaneal Joint Middle Facet Coalition Resection With Interposition of a Juvenile Hyaline Cartilage Graft.

    Science.gov (United States)

    Tower, Dyane E; Wood, Ryan W; Vaardahl, Michael D

    2015-01-01

    Talocalcaneal joint middle facet coalition is the most common tarsal coalition, occurring in ≤2% of the population. Fewer than 50% of involved feet obtain lasting relief of symptoms after nonoperative treatment, and surgical intervention is commonly used to relieve symptoms, increase the range of motion, improve function, reconstruct concomitant pes planovalgus, and prevent future arthrosis from occurring at the surrounding joints. Several approaches to surgical intervention are available for patients with middle facet coalitions, ranging from resection to hindfoot arthrodesis. We present a series of 4 cases, in 3 adolescent patients, of talocalcaneal joint middle facet coalition resection with interposition of a particulate juvenile hyaline cartilaginous allograft (DeNovo(®) NT Natural Tissue Graft, Zimmer, Inc., Warsaw, IN). With a mean follow-up period of 42.8 ± 2.9 (range 41 to 47) months, the 3 adolescent patients in the present series were doing well with improved subtalar joint motion and decreased pain, and 1 foot showed no bony regrowth on a follow-up computed tomography scan. The use of a particulate juvenile hyaline cartilaginous allograft as interposition material after talocalcaneal middle facet coalition resection combined with adjunct procedures to address concomitant pes planovalgus resulted in good short-term outcomes in 4 feet in 3 adolescent patients. Copyright © 2015 American College of Foot and Ankle Surgeons. Published by Elsevier Inc. All rights reserved.

  2. Changes of rabbit meniscus influenced by hyaline cartilage injury of osteoarthritis.

    Science.gov (United States)

    Zhao, Jiajun; Huang, Suizhu; Zheng, Jia; Zhong, Chunan; Tang, Chao; Zheng, Lei; Zhang, Zhen; Xu, Jianzhong

    2014-01-01

    Osteoarthritis (OA) is a common disease in the elderly population. Most of the previous OA-related researches focused on articular cartilage degeneration, osteophyte formation and synovitis etc. However, the role of the meniscus in these pathological changes has not been given enough attention. The goal of our study was to find the pathological changes of the meniscus in OA knee and determine their relationship. 20 months old female Chinese rabbits received either knee damaging operations with articular cartilage scratch method or sham operation randomly on one of their knees. They were sacrificed after 1-6 weeks post-operation. Medial Displacement Index (MDI) for meniscus dislocation, hematoxylin and eosin (HE) for routine histological evaluation, Toluidine blue (TB) stains for evaluating proteoglycans were carried out. Immunohistochemical (IHC) staining was performed with a two-step detection kit. Histological analysis showed chondrocyte clusters around cartilage lesions and moderate loss of proteoglycans in the operation model, as well as MDI increase and all characteristics of OA. High expression of MMP-3 and TIMP-1 also were found in both hyaline cartilage and meniscus. Biomechanical and biochemistry environment around the meniscus is altered when OA occur. If meniscus showed degeneration, subluxation and dysfunction, OA would be more severe. Prompt repair or reconstruction of hyaline cartilage in weight bearing area when it injured could prevent meniscus degeneration and subluxation, then prevent the development of OA.

  3. Pulmonary agenesis

    OpenAIRE

    Oyola, Mercedes; Pontificia Universidad Javeriana; Gordillo, Gisel; Pontificia Universidad Javeriana; García, Carlos A.; Pontificia Universidad Javeriana; Torres, David; Pontificia Universidad Javeriana

    2009-01-01

    Pulmonary agenesis is an infrequent pathology which occurs predominantly among females with no lateral preference. We report on the case of a newborn male diagnosed with prenatal diaphragm hernia though at birth seemed more likely either to be a congenital cystic adenomatoid malformation (congenital pulmonary airway malformation) or pulmonary agenesis. The patient died six days after birth and necropsy confirmed pulmonary agenesis. La agenesia pulmonar es una alteración poco frecuente, con...

  4. [Pulmonary Mycobacterium Avium-Complex (MAC) Disease Differentially Diagnosed from Metastasis of Testicular Cancer : A Case Report].

    Science.gov (United States)

    Mori, Kohei; Teranishi, Jyn-Ichi; Yoneyama, Shuko; Ishida, Hiroaki; Hattori, Yusuke; Yumura, Yasushi; Miyoshi, Yasuhide; Kondo, Keiichi; Uemura, Hiroji; Noguchi, Kazumi

    2017-01-01

    A 45 year-old-man was admitted to our hospital because of discomfort in his left scrotum. He had a left testicular tumor. We performed high orchiectomy and pathological findings revealed testicular cancer. He was treated with bleomycin, etoposide and cisplatin. Computed tomography showed a new mass in the left lung after 3 cycles of the chemotherapy. Because of its rapid growth, the tumor was thought to be a metastasis lesion of testicular cancer or pulmonary infection. Transbronchial lung biopsy showed an invasion of multinucleated giant cells and granuloma. The culture and polymerase chain reaction of the bronchial sputum were positive for myobacterium avium-complex (MAC). From these findings, the left lung tumor was diagnosed as pulmonary MAC disease. He received partial resection of the left lung and the lesion was diagnosed as granuloma. There was no recurrence of testicular cancer or pulmonary disease after the surgery.

  5. Increased systemic vascular resistance in neonates with pulmonary hypertension.

    Science.gov (United States)

    Milstein, J M; Goetzman, B W; Riemenschneider, T A; Wennberg, R P

    1979-11-01

    The time necessary for aortic diastolic pressure to decrease to 50 percent of an initially selected value after dissipation of the dicrotic notch (T 1/2) was determined in newborn infants with and without pulmonary hypertension. The mean T 1/2 was 671 +/- 167 msec in seven infants with clinical evidence of pulmonary hypertension and documented right to left ductus arteriosus shunting; 849 +/- 243 msec in nine infants with clinical evidence of pulmonary hypertension but no documented right to left ductus arteriosus shunting; and 457 +/- 66 msec in eight infants with hyaline membrane disease and no clinical evidence of pulmonary hypertension or a patent ductus arteriosus. The mean T 1/2 values in the former two groups were significantly different from that in the group with no pulmonary hypertension (P less than 0.01). An evaluation of factors affecting T 1/2 leads to the conclusion that the patients with pulmonary hypertension had increased systemic vascular resistance as well. This finding has important diagnostic, etiologic and therapeutic implications.

  6. Caspase-8 Deficiency Presenting as Late-Onset Multi-Organ Lymphocytic Infiltration with Granulomas in two Adult Siblings.

    Science.gov (United States)

    Niemela, Julie; Kuehn, Hye Sun; Kelly, Corin; Zhang, Mingchang; Davies, Joie; Melendez, Jose; Dreiling, Jennifer; Kleiner, David; Calvo, Katherine; Oliveira, João B; Rosenzweig, Sergio D

    2015-05-01

    Caspase-8 deficiency (CED) was originally described in 2002 in two pediatric patients presenting with clinical manifestations resembling autoimmune lymphoproliferative syndrome (ALPS) accompanied by infections, and T, B and NK cell defects. Since then, no new CED patients were published. Here we report two adult siblings (Pt1 and Pt2) presenting in their late thirties with pulmonary hypertension leading to lung transplant (Pt1), and a complex neurological disease leading to multiple cranial nerves palsies (Pt2) as their main manifestations. A thorough clinical and immunological evaluation was performed at the Primary Immunodeficiency Clinic at NIH, followed by whole exome sequencing. The patients had multiorgan lymphocytic infiltration and granulomas, as well as clinical signs of immune deficiency/ immune dysregulation. Both siblings carried homozygous mutations in CASP8, c.1096C > T, p.248R > W. This was the same mutation described on the previously published CED patients, to whom these new patients were likely distantly related. We report two new CED patients presenting during adulthood with life-threatening end-organ lymphocyte infiltrates affecting the lungs, liver, spleen, bone marrow and central nervous system. This phenotype broadens the clinical spectrum of manifestations associated with this disease and warrants the search of CASP8 mutations in other cohorts of patients.

  7. Analysis of therapeutic methods for treating vocal process granulomas.

    Science.gov (United States)

    Ma, Lijing; Xiao, Yang; Ye, Jingying; Yang, Qingwen; Wang, Jun

    2015-03-01

    The combination of laryngeal microsurgery and local injections of botulinum toxin type A (BTA) can increase the cure rate of patients with vocal process granulomas (VPGs). To analyze the therapeutic effects of conservative treatments, microsurgical resection with suturing and microsurgery in combination with local injections of BTA for the treatment of VPGs. A retrospective analysis of 168 cases of VPG was performed. All of the patients initially received a conservative treatment. Some of the patients who did not respond to the conservative treatments were treated using microsurgical resection and microsuturing using an 8-0 absorbable filament. Other patients additionally received a four-point injection of BTA into the thyroarytenoid muscle and the arytenoid muscle on the operated side. The lesions of 41.3% (71/168) of the patients who were given the conservative treatments (including acid suppression, vocal rest, and voice therapy) disappeared, and the lesions of 10.7% (18/168) of the patients were reduced. The conservative treatments were unsuccessful for 47% (79/168) of the patients. The cure rate was 78.4% (29/37) for the patients who were treated by microscope resection using a CO2 laser and microsuturing of the surrounding mucosa. Of the eight patients who experienced a recurrence, five of them had lesions that disappeared after 3 months of conservative treatment, whereas the other three patients recovered after a second operation. The cure rate of the 42 patients who were treated using microsurgery combined with local injections of BTA was 95.2% (40/42), with only 2 cases of recurrence at 2 months post-treatment.

  8. Taurine drinking ameliorates hepatic granuloma and fibrosis in mice infected with Schistosoma japonicum

    Directory of Open Access Journals (Sweden)

    Yan-Rong Yu

    2016-04-01

    Full Text Available In schistosomiasis, egg-induced hepatic granuloma formation is a cytokine-mediated, predominantly CD4+ Th2 immune response that can give rise to hepatic fibrosis. Hepatic fibrosis is the main cause of increased morbidity and mortality in humans with schistosome infection. Taurine has various physiological functions and hepatoprotective properties as well as anti-inflammatory and immunomodulatory activity. However, little is known about the role of taurine in schistosome egg-induced granuloma formation and fibrosis. We aimed to evaluate the therapeutic potential of taurine as preventative treatment for Schistosoma japonicum infection. Mice infected with S. japonicum cercariae were supplied with taurine drinking water (1% w/v for 4 weeks starting at 4 weeks post-infection. Taurine supplementation significantly improved the liver pathologic findings, reduced the serum levels of aminotransferases and area of hepatic granuloma, and prevented fibrosis progression. In addition, taurine decreased the expression of the granulomatous and fibrogenic mediators transforming growth factor β1, tumor necrosis factor α, monocyte chemotactic protein 1α and macrophage inflammatory protein 1α as well as the endoplasmic reticulum stress marker glucose-regulated protein 78. Thus, taurine can significantly attenuate S. japonicum egg-induced hepatic granuloma and fibrosis, which may depend in part on the downregulation of some relevant cytokine/chemokines and reducing the endoplasmic reticulum stress response. Keywords: Schistosomiasis, Schistosoma japonicum, Granuloma, Fibrosis, Taurine

  9. Localized foreign body granulomas of the breast : clinical and mammographic findings

    International Nuclear Information System (INIS)

    Choi, Dong Il; Han, Boo Kyung; Choe, Yeon Hyeon; Park, Jeong Mi; Yang, Jung Hyun; Nam, Seok Jin

    1998-01-01

    The purpose of this study is to evaluate the clinical and radiographic findings of localized foreign body (FB) granulomas on mammograms. This study involved 13 patients with localized FB granulomas on mammograms; their history of mammoplasty or other plastic procedures was obtained by telephone interviews. Two radiologists analyzed the location and morphology of FB granulomas and the presence of associated linear densities or parenchymal distortion on mammograms. Four patients underwent ultrasonography. No patient had a history of mammoplasty. All 13, however, had a history of plastic procedure, three to 22 (average, 12) years previously, as follows: foreign materials including silicone liquid and oil such as paraffin had been injected into the anterior neck area of nine patients, the representing FB granulomas were distributed bilaterally in nine patients; they were noted in the suggesting fibrosis. There was no calcification or parenchymal distortion. Though in three cases, the masses were palpable. Ultrasonography revealed several anechoic nodules with posterior enhancement in subcutaneous fatty layers, and in one, 0.2 cc of oil droplet had been aspirated under ultrasonographic guidance. Localized FB granulomas of the breast could be caused by the migration of FB from cervicofacial areas. Mammography showed characteristic distribution of upper inner portions, and the findings were similiar to those of mild interstitial mammoplasty. (author). 13 refs., 2 figs

  10. Immune response CC Chemokines, CCL2 and CCL5 are associated with Pulmonary Sarcoidosis

    LENUS (Irish Health Repository)

    Palchevskiy, Vyacheslav

    2011-04-04

    Abstract Background Pulmonary sarcoidosis involves an intense leukocyte infiltration of the lung with the formation of non-necrotizing granulomas. CC chemokines (chemokine (C-C motif) ligand 2 (CCL2)-CCL5) are chemoattractants of mononuclear cells and act through seven transmembrane G-coupled receptors. Previous studies have demonstrated conflicting results with regard to the associations of these chemokines with sarcoidosis. In an effort to clarify previous discrepancies, we performed the largest observational study to date of CC chemokines in bronchoalveolar lavage fluid (BALF) from patients with pulmonary sarcoidosis. Results BALF chemokine levels from 72 patients affected by pulmonary sarcoidosis were analyzed by enzyme-linked immunosorbent assay (ELISA) and compared to 8 healthy volunteers. BALF CCL3 and CCL4 levels from pulmonary sarcoidosis patients were not increased compared to controls. However, CCL2 and CCL5 levels were elevated, and subgroup analysis showed higher levels of both chemokines in all stages of pulmonary sarcoidosis. CCL2, CCL5, CC chemokine receptor type 1 (CCR1), CCR2 and CCR3 were expressed from mononuclear cells forming the lung granulomas, while CCR5 was only found on mast cells. Conclusions These data suggest that CCL2 and CCL5 are important mediators in recruiting CCR1, CCR2, and CCR3 expressing mononuclear cells as well as CCR5-expressing mast cells during all stages of pulmonary sarcoidosis.

  11. Immune response CC chemokines CCL2 and CCL5 are associated with pulmonary sarcoidosis.

    Science.gov (United States)

    Palchevskiy, Vyacheslav; Hashemi, Nastran; Weigt, Stephen S; Xue, Ying Ying; Derhovanessian, Ariss; Keane, Michael P; Strieter, Robert M; Fishbein, Michael C; Deng, Jane C; Lynch, Joseph P; Elashoff, Robert; Belperio, John A

    2011-04-04

    Pulmonary sarcoidosis involves an intense leukocyte infiltration of the lung with the formation of non-necrotizing granulomas. CC chemokines (chemokine (C-C motif) ligand 2 (CCL2)-CCL5) are chemoattractants of mononuclear cells and act through seven transmembrane G-coupled receptors. Previous studies have demonstrated conflicting results with regard to the associations of these chemokines with sarcoidosis. In an effort to clarify previous discrepancies, we performed the largest observational study to date of CC chemokines in bronchoalveolar lavage fluid (BALF) from patients with pulmonary sarcoidosis. BALF chemokine levels from 72 patients affected by pulmonary sarcoidosis were analyzed by enzyme-linked immunosorbent assay (ELISA) and compared to 8 healthy volunteers. BALF CCL3 and CCL4 levels from pulmonary sarcoidosis patients were not increased compared to controls. However, CCL2 and CCL5 levels were elevated, and subgroup analysis showed higher levels of both chemokines in all stages of pulmonary sarcoidosis. CCL2, CCL5, CC chemokine receptor type 1 (CCR1), CCR2 and CCR3 were expressed from mononuclear cells forming the lung granulomas, while CCR5 was only found on mast cells. These data suggest that CCL2 and CCL5 are important mediators in recruiting CCR1, CCR2, and CCR3 expressing mononuclear cells as well as CCR5-expressing mast cells during all stages of pulmonary sarcoidosis.

  12. Regeneration of hyaline-like cartilage in situ with SOX9 stimulation of bone marrow-derived mesenchymal stem cells.

    Directory of Open Access Journals (Sweden)

    Xiaowei Zhang

    Full Text Available Microfracture, a common procedure for treatment of cartilage injury, induces fibrocartilage repair by recruiting bone marrow derived mesenchymal stem cells (MSC to the site of cartilage injury. However, fibrocartilage is inferior biomechanically to hyaline cartilage. SRY-type high-mobility group box-9 (SOX9 is a master regulator of chondrogenesis by promoting proliferation and differentiation of MSC into chondrocytes. In this study we aimed to test the therapeutic potential of cell penetrating recombinant SOX9 protein in regeneration of hyaline cartilage in situ at the site of cartilage injury. We generated a recombinant SOX9 protein which was fused with super positively charged green fluorescence protein (GFP (scSOX9 to facilitate cell penetration. scSOX9 was able to induce chondrogenesis of bone marrow derived MSC in vitro. In a rabbit cartilage injury model, scSOX9 in combination with microfracture significantly improved quality of repaired cartilage as shown by macroscopic appearance. Histological analysis revealed that the reparative tissue induced by microfracture with scSOX9 had features of hyaline cartilage; and collagen type II to type I ratio was similar to that in normal cartilage. This short term in vivo study demonstrated that when administered at the site of microfracture, scSOX9 was able to induce reparative tissue with features of hyaline cartilage.

  13. Distinction between the extracellular matrix of the nucleus pulposus and hyaline cartilage: a requisite for tissue engineering of intervertebral disc.

    Science.gov (United States)

    Mwale, F; Roughley, P; Antoniou, J

    2004-12-15

    Tissue engineering of intervertebral discs (IVD) using mesenchymal stem cells (MSCs) induced to differentiate into a disc-cell phenotype has been considered as an alternative treatment for disc degeneration. However, since there is no unique marker characteristic of discs and since hyaline cartilage and immature nucleus pulposus (NP) possess similar macromolecules in their extracellular matrix, it is currently difficult to recognize MSC conversion to a disc cell. This study was performed to compare the proteoglycan to collagen ratio (measured as GAG to hydroxyproline ratio) in the NP of normal disc to that of the hyaline cartilage of the endplate within the same group of individuals and test the hypothesis that this ratio can be used for in vivo studies to distinguish between a normal NP and hyaline cartilage phenotype. Whole human lumbar spine specimens from fresh cadavers, ranging in age from 12 weeks to 79 years, were used to harvest the IVDs and adjacent endplates. The GAG to hydroxyproline ratio within the NP of young adults is approximately 27:1, whereas the ratio within the hyaline cartilage endplate of the same aged individuals is about 2:1. The production of an extracellular matrix with a high proteoglycan to collagen ratio can be used in vivo to distinguish NP cells from chondrocytes, and could help in identifying a NP-like phenotype in vivo as opposed to a chondrocyte when MSCs are induced to differentiate for tissue engineering of a disc.

  14. Distinction between the extracellular matrix of the nucleus pulposus and hyaline cartilage: a requisite for tissue engineering of intervertebral disc

    Directory of Open Access Journals (Sweden)

    Mwale F.

    2004-12-01

    Full Text Available Tissue engineering of intervertebral discs (IVD using mesenchymal stem cells (MSCs induced to differentiate into a disc-cell phenotype has been considered as an alternative treatment for disc degeneration. However, since there is no unique marker characteristic of discs and since hyaline cartilage and immature nucleus pulposus (NP possess similar macromolecules in their extracellular matrix, it is currently difficult to recognize MSC conversion to a disc cell. This study was performed to compare the proteoglycan to collagen ratio (measured as GAG to hydroxyproline ratio in the NP of normal disc to that of the hyaline cartilage of the endplate within the same group of individuals and test the hypothesis that this ratio can be used for in vivo studies to distinguish between a normal NP and hyaline cartilage phenotype. Whole human lumbar spine specimens from fresh cadavers, ranging in age from 12 weeks to 79 years, were used to harvest the IVDs and adjacent endplates. The GAG to hydroxyproline ratio within the NP of young adults is approximately 27:1, whereas the ratio within the hyaline cartilage endplate of the same aged individuals is about 2:1. The production of an extracellular matrix with a high proteoglycan to collagen ratio can be used in vivo to distinguish NP cells from chondrocytes, and could help in identifying a NP-like phenotype in vivo as opposed to a chondrocyte when MSCs are induced to differentiate for tissue engineering of a disc.

  15. Regeneration of hyaline-like cartilage in situ with SOX9 stimulation of bone marrow-derived mesenchymal stem cells.

    Science.gov (United States)

    Zhang, Xiaowei; Wu, Shili; Naccarato, Ty; Prakash-Damani, Manan; Chou, Yuan; Chu, Cong-Qiu; Zhu, Yong

    2017-01-01

    Microfracture, a common procedure for treatment of cartilage injury, induces fibrocartilage repair by recruiting bone marrow derived mesenchymal stem cells (MSC) to the site of cartilage injury. However, fibrocartilage is inferior biomechanically to hyaline cartilage. SRY-type high-mobility group box-9 (SOX9) is a master regulator of chondrogenesis by promoting proliferation and differentiation of MSC into chondrocytes. In this study we aimed to test the therapeutic potential of cell penetrating recombinant SOX9 protein in regeneration of hyaline cartilage in situ at the site of cartilage injury. We generated a recombinant SOX9 protein which was fused with super positively charged green fluorescence protein (GFP) (scSOX9) to facilitate cell penetration. scSOX9 was able to induce chondrogenesis of bone marrow derived MSC in vitro. In a rabbit cartilage injury model, scSOX9 in combination with microfracture significantly improved quality of repaired cartilage as shown by macroscopic appearance. Histological analysis revealed that the reparative tissue induced by microfracture with scSOX9 had features of hyaline cartilage; and collagen type II to type I ratio was similar to that in normal cartilage. This short term in vivo study demonstrated that when administered at the site of microfracture, scSOX9 was able to induce reparative tissue with features of hyaline cartilage.

  16. Fibrous cartilage of human menisci is less shock-absorbing and energy-dissipating than hyaline cartilage.

    Science.gov (United States)

    Gaugler, Mario; Wirz, Dieter; Ronken, Sarah; Hafner, Mirjam; Göpfert, Beat; Friederich, Niklaus F; Elke, Reinhard

    2015-04-01

    To test meniscal mechanical properties such as the dynamic modulus of elasticity E* and the loss angle δ at two loading frequencies ω at different locations of the menisci and compare it to E* and δ of hyaline cartilage in indentation mode with spherical indenters. On nine pairs of human menisci, the dynamic E*-modulus and loss angle δ (as a measure of the energy dissipation) were determined. The measurements were performed at two different strain rates (slow sinusoidal and fast single impact) to show the strain rate dependence of the material. The measurements were compared to previous similar measurements with the same equipment on human hyaline cartilage. The resultant E* at fast indentation (median 1.16 MPa) was significantly higher, and the loss angle was significantly lower (median 10.2°) compared to slow-loading mode's E* and δ (median 0.18 MPa and 16.9°, respectively). Further, significant differences for different locations are shown. On the medial meniscus, the anterior horn shows the highest resultant dynamic modulus. In dynamic measurements with a spherical indenter, the menisci are much softer and less energy-dissipating than hyaline cartilage. Further, the menisci are stiffer and less energy-dissipating in the middle, intermediate part compared to the meniscal base. In compression, the energy dissipation of meniscus cartilage plays a minor role compared to hyaline cartilage. At high impacts, energy dissipation is less than on low impacts, similar to cartilage.

  17. Similar hyaline-like cartilage repair of osteochondral defects in rabbits using isotropic and anisotropic collagen scaffolds.

    Science.gov (United States)

    de Mulder, Eric L W; Hannink, Gerjon; van Kuppevelt, Toin H; Daamen, Willeke F; Buma, Pieter

    2014-02-01

    Lesions in knee joint articular cartilage (AC) have limited repair capacity. Many clinically available treatments induce a fibrous-like cartilage repair instead of hyaline cartilage. To induce hyaline cartilage repair, we hypothesized that type I collagen scaffolds with fibers aligned perpendicular to the AC surface would result in qualitatively better tissue repair due to a guided cellular influx from the subchondral bone. By specific freezing protocols, type I collagen scaffolds with isotropic and anisotropic fiber architectures were produced. Rabbits were operated on bilaterally and two full thickness defects were created in each knee joint. The defects were filled with (1) an isotropic scaffold, (2) an anisotropic scaffold with pores parallel to the cartilage surface, and (3) an anisotropic scaffold with pores perpendicular to the cartilage surface. Empty defects served as controls. After 4 (n=13) and 12 (n=13) weeks, regeneration was scored qualitatively and quantitatively using histological analysis and a modified O'Driscoll score. After 4 weeks, all defects were completely filled with partially differentiated hyaline cartilage tissue. No differences in O'Driscoll scores were measured between empty defects and scaffold types. After 12 weeks, all treatments led to hyaline cartilage repair visualized by increased glycosaminoglycan staining. Total scores were significantly increased for parallel anisotropic and empty defects over time (phyaline-like cartilage repair. Fiber architecture had no effect on cartilage repair.

  18. Hyaline Tintinnina (Protozoa-Ciliophora-Oligotrichida from northeast Brazilian coastal reefs

    Directory of Open Access Journals (Sweden)

    Roberto Sassi

    1989-01-01

    Full Text Available Seven species of hyaline Tintinnina were obtained from plankton samples collected near the coastal reefs of Ponta do Seixas (Lat. 7º09'16"S, Long. 34º4735"W, Northeastern Brazil, from April 1981 to May 1982 and from April 1983 to May 1984: Amphorellopsis acuta (Schmidt, 1901, Dadayiella ganymedes (Entz Sr., 1884, Epiplocyloides reticulata (Ostenfeld & Schmidt, 1901, Eutintinnus tubulosus (Ostenfeld, 1899, Favella ehrenbergi (Claparède & Lachmann, 1858, Metacylis mereschkowskyi Kofoid & Campbell, 1929 and M. perspicax (Hada, 1938. The most frequent and abundant species were M. mereschkowskyi and F. ehrenbergi. Except/.ganymedes, E. reticulata and F. ehrenbergi all species are new records from Brazil. Metacylis perspicax is also the seventh world register. For all species we provide description, drawings, measurements, seasonal occurrence, world distribution and some systematic comments.

  19. Pre-operative irradiation of eosinophilic granuloma in the parotid area

    International Nuclear Information System (INIS)

    Kitahara, Satoshi; Toda, Yukio; Nakajima, Hisami; Takeyama, Isamu; Sodemoto, Yukio; Endo, Masaru

    1983-01-01

    Eosinophilic granuloma is thought to originate in the reticuloendothelial system and cannot clearly be distinguished from the surrounding tissue during operation. An eosinophilic granuloma in the parotid area was removed after 25 days of irradiation at a dosage of 10.0 Gy per 3 days. A thin capsule of connective tissue was observed after the tumor was cut in half. Then, histopathological studies were performed on this connective tissue to determine the effect of the irradiation. Histopathologically, at the periphery of the tissue, atrophy of lymphocytes and destruction of the lymphoid tissue, which were thought to result in an increase in the connective tissue, were observed. It was concluded that a small dose of pre-operative radiation on eosinophilic granuloma in the parotid area made the tumor small and produced a capsule around the tumor. (author)

  20. Florid cemento-osseous dysplasia and peripheral giant cell granuloma in a patient with neurofibromatosis 1.

    Science.gov (United States)

    Sarmento, Dmitry José de Santana; Carvalho, Sérgio Henrique Gonçalves de; Araújo, José Cadmo Wanderley Peregrino de; Carvalho, Marianne de Vasconcelos; Silveira, Éricka Janine Dantas da

    2017-01-01

    We report a 35-year-old mulatto female patient with neurofibromatosis Type 1 who presented with facial asymmetry. The patient had two lesions: florid cemento-osseous dysplasia associated with peripheral giant cell granuloma. She was referred for surgical treatment of the peripheral giant cell granuloma and the florid cemento-osseous dysplasia was treated conservatively by a multidisciplinary team. So far, no changes have been observed in the patient's clinical status. We observed no recurrence of peripheral giant cell granuloma. To the best of our knowledge, the present case is the first report of a patient with neurofibromatosis Type 1 associated with a giant cell lesion and florid cemento-osseous dysplasia.

  1. Florid cemento-osseous dysplasia and peripheral giant cell granuloma in a patient with neurofibromatosis 1*

    Science.gov (United States)

    Sarmento, Dmitry José de Santana; de Carvalho, Sérgio Henrique Gonçalves; de Araújo Filho, José Cadmo Wanderley Peregrino; Carvalho, Marianne de Vasconcelos; da Silveira, Éricka Janine Dantas

    2017-01-01

    We report a 35-year-old mulatto female patient with neurofibromatosis Type 1 who presented with facial asymmetry. The patient had two lesions: florid cemento-osseous dysplasia associated with peripheral giant cell granuloma. She was referred for surgical treatment of the peripheral giant cell granuloma and the florid cemento-osseous dysplasia was treated conservatively by a multidisciplinary team. So far, no changes have been observed in the patient's clinical status. We observed no recurrence of peripheral giant cell granuloma. To the best of our knowledge, the present case is the first report of a patient with neurofibromatosis Type 1 associated with a giant cell lesion and florid cemento-osseous dysplasia. PMID:28538890

  2. Development of spermatic granuloma in albino rats following administration of water extract of Heliotropium bacciferum Forssk.

    Science.gov (United States)

    Alanazi, Khalid; Alahmadi, Bassam A; Alhimaidi, Ahmed; Abou-Tarboush, Faisal M; Farah, Mohammad Abul; Mahmoud, Ahmed; Alfaifi, Mohamed

    2016-01-01

    A spermatic granuloma is a chronic inflammatory reaction produced in response to extravasated sperm within the intertubular connective tissue. The present study investigates the possible toxic effects of water extract of Heliotropium bacciferum on the reproductive system of male albino rats and the associated potential for the development of spermatic granulomas. H. bacciferum is a herbal plant used in traditional medicine and reported to have cytotoxic effects due to pyrrolizidine alkaloids. Histological examinations revealed no changes in the tissues of the testes, although, some changes were detected in the cauda epididymis, the most important of which was the development of small lesions of spermatic granulomas. Clear gaps were observed between the epithelial linings of the epididymal tubules.

  3. Radiologic Findings of Foreign Body Granuloma by the Bee Sting: A Case Report

    International Nuclear Information System (INIS)

    Kim, Jae Won; Yang, Ik; Kim, Jeong Won; Jung, Ah Young; Chung, Soo Young; Kim, Hong Dae; Woo, Ji Young; Yoon, Sa Rah; Choi, Seon Hyeong

    2010-01-01

    Bee sting therapy is a folk remedy used for arthralgia. An adverse reaction to bee sting therapy can be variable, ranging from a local inflammatory reaction to generalized anaphylaxis. There have been reports of dermatologic findings pertaining to bee sting granulomas, which results from a foreign body reaction to the persistence of venom and stinger at the sting site. However to the best of our knowledge, the radiologic findings of bee sting granulomas have not been reported on in Korea. We describe the ultrasound and MRI findings of bee sting granulomas at the lower extremity in a 36-year-old woman who underwent bee-sting therapy for osteoarthritis of the knee joints 3 months prior

  4. Sarcoid-like lung granulomas in a hemodialysis patient treated with a dipeptidyl peptidase-4 inhibitor.

    Science.gov (United States)

    Sada, Ken-Ei; Wada, Jun; Morinaga, Hiroshi; Tuchimochi, Shigeyuki; Uka, Mayu; Makino, Hirofumi

    2014-04-01

    It has been reported that the inhibition of dipeptidyl peptidase-4 (DPP-4)/CD26 on T-cells by DPP-4 enzymatic inhibitors suppresses lymphocyte proliferation and reduces the production of various cytokines, including tumor necrosis factor (TNF)-α. A 72-year-old female with diabetic nephropathy on hemodialysis developed multiple lung nodules following the administration of vildagliptin. A biopsy demonstrated the histology of granulomas without caseous necrosis. The discontinuation of vildagliptin resulted in the disappearance of the granulomas within 4 months. As granulomatosis often develops in patients under anti-TNF-α therapy, the accumulation of DPP-4 inhibitors or its metabolites is possibly linked to unrecognized complications, such as sarcoid-like lung granulomas.

  5. Radiologic Findings of Foreign Body Granuloma by the Bee Sting: A Case Report

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jae Won; Yang, Ik; Kim, Jeong Won; Jung, Ah Young; Chung, Soo Young; Kim, Hong Dae; Woo, Ji Young; Yoon, Sa Rah; Choi, Seon Hyeong [Kangnam Sacred Heart Hospital, Seoul (Korea, Republic of)

    2010-03-15

    Bee sting therapy is a folk remedy used for arthralgia. An adverse reaction to bee sting therapy can be variable, ranging from a local inflammatory reaction to generalized anaphylaxis. There have been reports of dermatologic findings pertaining to bee sting granulomas, which results from a foreign body reaction to the persistence of venom and stinger at the sting site. However to the best of our knowledge, the radiologic findings of bee sting granulomas have not been reported on in Korea. We describe the ultrasound and MRI findings of bee sting granulomas at the lower extremity in a 36-year-old woman who underwent bee-sting therapy for osteoarthritis of the knee joints 3 months prior.

  6. Changes of cerebral hemodynamics following the administration of surfactant in the hyaline membrane disease of prematurity

    Energy Technology Data Exchange (ETDEWEB)

    Yoo, Jeong Hyun; Kim, Kyung Hee [Ewha Womans University College of Medicine, Seoul (Korea, Republic of)

    2000-09-15

    To evaluate the changes of cerebral blood flow velocity according to the time, before and after surfactant administration in hyaline membrane disease using Doppler ultrasonography. The patients were 15 premature babies who were clinically and radiologically diagnosed HMD. The ratio of male : female was 11:4, the mean gestational age was 30.1 {+-} 2.5 wks, mean body weight was 1.4 {+-} 0.6 kg,mean Apgar score at 5 min was 6.28, and type of delivery was C-section : vaginal delivery 9.6. Before and after, 10 mm, 30 min, 1 hr, 6 hr, 12 hr, 1 day, 3 day, 5 day and 7 day after surfactant administration, peak systolic and end-diastolic cerebral blood flow velocity (PSFV, EDFV) and resistive index (RI) were estimated by Doppler ultrasonography measuring MCA flow velocity using temporal window. The averages of all data according to the time were obtained and analyzed statistical significance. For the evaluation of the clinical status systemic BP, FiO2, pH, and respiratory rate were also checked according to the same time. The clinical status of FiO2, metabolic acidosis, and tachypnea was significantly improved after surfactant administration. There was no significant change of cerebral blood flow velocity (PSFV, EDFV) after the surfactant administration. The change of RI was nor statistically significant. The changes of the systemic BP had no significant changes. In spite of clinical improvement, there were no significant increases of cerebral blood flow velocity and changes of RI after surfactant administration in hyaline membrane disease.

  7. Changes of cerebral hemodynamics following the administration of surfactant in the hyaline membrane disease of prematurity

    International Nuclear Information System (INIS)

    Yoo, Jeong Hyun; Kim, Kyung Hee

    2000-01-01

    To evaluate the changes of cerebral blood flow velocity according to the time, before and after surfactant administration in hyaline membrane disease using Doppler ultrasonography. The patients were 15 premature babies who were clinically and radiologically diagnosed HMD. The ratio of male : female was 11:4, the mean gestational age was 30.1 ± 2.5 wks, mean body weight was 1.4 ± 0.6 kg,mean Apgar score at 5 min was 6.28, and type of delivery was C-section : vaginal delivery 9.6. Before and after, 10 mm, 30 min, 1 hr, 6 hr, 12 hr, 1 day, 3 day, 5 day and 7 day after surfactant administration, peak systolic and end-diastolic cerebral blood flow velocity (PSFV, EDFV) and resistive index (RI) were estimated by Doppler ultrasonography measuring MCA flow velocity using temporal window. The averages of all data according to the time were obtained and analyzed statistical significance. For the evaluation of the clinical status systemic BP, FiO2, pH, and respiratory rate were also checked according to the same time. The clinical status of FiO2, metabolic acidosis, and tachypnea was significantly improved after surfactant administration. There was no significant change of cerebral blood flow velocity (PSFV, EDFV) after the surfactant administration. The change of RI was nor statistically significant. The changes of the systemic BP had no significant changes. In spite of clinical improvement, there were no significant increases of cerebral blood flow velocity and changes of RI after surfactant administration in hyaline membrane disease.

  8. Ultrasonography shows disappearance of monosodium urate crystal deposition on hyaline cartilage after sustained normouricemia is achieved.

    Science.gov (United States)

    Thiele, Ralf G; Schlesinger, Naomi

    2010-02-01

    This study aimed at determining whether lowering serum urate (SU) to less than 6 mg/dl in patients with gout affects ultrasonographic findings. Seven joints in five patients with monosodium urate (MSU) crystal proven gout and hyperuricemia were examined over time with serial ultrasonography. Four of the five patients were treated with urate lowering drugs (ULDs) (allopurinol, n = 3; probenecid, n = 1). One patient was treated with colchicine alone. Attention was given to changes in a hyperechoic, irregular coating of the hyaline cartilage in the examined joints (double contour sign or "urate icing"). This coating was considered to represent precipitate of MSU crystals. Index joints included metacarpophalangeal (MCP) joints (n = 2), knee joints (n = 3), and first metatarsophalangeal (MTP) joints (n = 2). The interval between baseline and follow-up images ranged from 7 to 18 months. Serial SU levels were obtained during the follow-up period. During the follow-up period, three patients treated with ULD (allopurinol, n = 2; probenecid, n = 1) achieved a SU level of or =7 mg/dl. In one patient treated with allopurinol, SU levels improved from 13 to 7 mg/dl during the follow-up period. Decrease, but not resolution of the hyperechoic coating was seen in this patient. In the patient treated with colchicine alone, SU levels remained >8 mg/dl, and no sonographic change was observed. In our patients, sonographic signs of deposition of MSU crystals on the surface of hyaline cartilage disappeared completely if sustained normouricemia was achieved. This is the first report showing that characteristic sonographic changes are influenced by ULDs once SU levels remain studies are needed to further assess these potentially important findings.

  9. Hyaline Articular Matrix Formed by Dynamic Self-Regenerating Cartilage and Hydrogels.

    Science.gov (United States)

    Meppelink, Amanda M; Zhao, Xing; Griffin, Darvin J; Erali, Richard; Gill, Thomas J; Bonassar, Lawrence J; Redmond, Robert W; Randolph, Mark A

    2016-07-01

    Injuries to the articular cartilage surface are challenging to repair because cartilage possesses a limited capacity for self-repair. The outcomes of current clinical procedures aimed to address these injuries are inconsistent and unsatisfactory. We have developed a novel method for generating hyaline articular cartilage to improve the outcome of joint surface repair. A suspension of 10(7) swine chondrocytes was cultured under reciprocating motion for 14 days. The resulting dynamic self-regenerating cartilage (dSRC) was placed in a cartilage ring and capped with fibrin and collagen gel. A control group consisted of chondrocytes encapsulated in fibrin gel. Constructs were implanted subcutaneously in nude mice and harvested after 6 weeks. Gross, histological, immunohistochemical, biochemical, and biomechanical analyses were performed. In swine patellar groove, dSRC was implanted into osteochondral defects capped with collagen gel and compared to defects filled with osteochondral plugs, collagen gel, or left empty after 6 weeks. In mice, the fibrin- and collagen-capped dSRC constructs showed enhanced contiguous cartilage matrix formation over the control of cells encapsulated in fibrin gel. Biochemically, the fibrin and collagen gel dSRC groups were statistically improved in glycosaminoglycan and hydroxyproline content compared to the control. There was no statistical difference in the biomechanical data between the dSRC groups and the control. The swine model also showed contiguous cartilage matrix in the dSRC group but not in the collagen gel and empty defects. These data demonstrate the survivability and successful matrix formation of dSRC under the mechanical forces experienced by normal hyaline cartilage in the knee joint. The results from this study demonstrate that dSRC capped with hydrogels successfully engineers contiguous articular cartilage matrix in both nonload-bearing and load-bearing environments.

  10. Granuloma telangiectásico asociado a alteración hormonal

    Directory of Open Access Journals (Sweden)

    Estephannia Mora Solano

    2013-10-01

    Full Text Available Title: Telangiecticum granuloma associated to hormonal alterations.ResumenEl granuloma telangiectásico es una lesión mucocutánea benigna no neoplásica, de origen epitelial, contenido vascular y crecimiento rápido, cuya etiología es atribuible a un trauma menor pero constante. Se asocia a alteraciones hormonales propias del embarazo y la pubertad. En la cavidad oral tiene predilección a nivel de la encía. A continuación se presenta caso clínico de una paciente de 25 años de edad, quien acude a consulta odontológica por presentar una lesión tumoral que se desarrolló mientras estaba en el tercer mes de embarazo, localizada en el sector anteroinferior, dificultando la fonación, masticación y deglución. Se realizó escisión quirúrgica y al efectuar estudio histopatológico se confirmó diagnóstico de granuloma telangiectásico. (DUAZARY 2012 No. 1, 65 - 67AbstractTelangiecticum granuloma is a nonneoplastic benign mucocutaneous lesion of epitelial origin, vascular content and fast growing, etiology is attributable to minor and constant trauma. In the oral cavity it has a predilection to the gum. We present a case of a female 25 years old patient who goes to dental consult for presenting a tumor lesion while she was in the third month of pregnancy, located in the jaw, making difficult the phonation, mastication and swallowing. We proceed to surgical excision and pathological studies confirmed the diagnosis of telangiectaticum granuloma.Key words: Pyogenic granuloma; pregnancy; hyperplasia; hormones. (Mesh Database.

  11. Histological assessment of granulomas in natural and experimental Schistosoma mansoni infections using whole slide imaging.

    Directory of Open Access Journals (Sweden)

    Kátia B Amaral

    Full Text Available The pathology of schistosomiasis mansoni, a neglected tropical disease of great clinical and socioeconomic importance, results from the parasite eggs that become trapped in host tissues, particularly in the liver and intestines. Continuous antigenic stimulation from these eggs leads to recruitment of inflammatory cells to the sites of infection with formation of periovular granulomas. These complex structures have variable size and composition and are the most striking histopathological feature of schistosomiasis mansoni. However, evaluation of granulomas by conventional microscopy methods is time-consuming and limited, especially in large-scale studies. Here, we used high resolution Whole Slide Imaging (WSI, which allows fast scanning of entire histological slides, and multiple morphometric evaluations, to assess the granulomatous response elicited in target organs (liver, small and large intestines of two models of schistosomiasis mansoni. One of the advantages of WSI, also termed virtual microscopy, is that it generates images that simultaneously offer high resolution and a wide field of observation. By using a model of natural (Nectomys squamipes, a wild reservoir captured from endemic areas in Brazil and experimental (Swiss mouse infection with Schistosoma mansoni, we provided the first detailed WSI characterization of granulomas and other pathological aspects. WSI and quantitative analyses enabled a fast and reliable assessment of the number, evolutional types, frequency and areas of granulomas and inflammatory infiltrates and revealed that target organs are differentially impacted by inflammatory responses in the natural and experimental infections. Remarkably, high-resolution analysis of individual eosinophils, key cells elicited by this helminthic infection, showed a great difference in eosinophil numbers between the two infections. Moreover, features such as the intestinal egg path and confluent granulomas were uncovered. Thus, WSI may

  12. Receptor activator NFkappaB-ligand and osteoprotegerin protein expression in human periapical cysts and granulomas.

    Science.gov (United States)

    Menezes, Renato; Bramante, Clóvis Monteiro; da Silva Paiva, Katiúcia Batista; Letra, Ariadne; Carneiro, Everdan; Fernando Zambuzzi, Willian; Granjeiro, José Mauro

    2006-09-01

    The purpose of this study was to determine the expression of receptor activator of NFkappaB ligand (RANKL) and osteoprotegerin (OPG) associated with bone destruction in periapical cysts and granulomas. Forty human dental chronic periapical lesions were collected after periapical surgery. The lesions collected were fixed in 10% buffered formalin and histologically processed. At least 2 sections of each specimen were stained with hematoxylin and eosin for microscopic diagnosis. After that, 10 human periapical granulomas and 10 cysts were selected for immunohistochemical analysis for RANKL, OPG, and CD68+. Polymorphonuclear neutrophils, macrophages, endothelial cells, and lymphocytes were stained for RANKL and OPG in both lesions. Epithelial cells were also stained for RANKL and OPG in periapical cysts. Quantitative analysis was conducted and the results were expressed as a ratio of the number of immunostained cells over the total number of cells in the field (n = 100). The ratio of RANKL+/total cells was higher than OPG+/total cells in periapical granulomas (0.553 +/- 0.153 and 0.483 +/- 0.189, respectively; P cysts (0.519 +/- 0.09 and 0.339 +/- 0.117, respectively; P cysts. However, the ratio RANKL+/OPG+ in granulomas (1.336 +/- 0.723) and cysts (1.404 +/- 0.385) was not significantly different. The ratio of CD68+/total cells was significantly higher in granulomas (0.381 +/- 0.040) than in cysts (0.307 +/- 0.068) (P cysts and granulomas, strongly suggesting the involvement of these gene products in the development of periapical lesions.

  13. Macrophage polarization differs between apical granulomas, radicular cysts, and dentigerous cysts.

    Science.gov (United States)

    Weber, Manuel; Schlittenbauer, Tilo; Moebius, Patrick; Büttner-Herold, Maike; Ries, Jutta; Preidl, Raimund; Geppert, Carol-Immanuel; Neukam, Friedrich W; Wehrhan, Falk

    2018-01-01

    Apical periodontitis can appear clinically as apical granulomas or radicular cysts. There is evidence that immunologic factors are involved in the pathogenesis of both pathologies. In contrast to radicular cysts, the dentigerous cysts have a developmental origin. Macrophage polarization (M1 vs M2) is a main regulator of tissue homeostasis and differentiation. There are no studies comparing macrophage polarization in apical granulomas, radicular cysts, and dentigerous cysts. Forty-one apical granulomas, 23 radicular cysts, and 23 dentigerous cysts were analyzed in this study. A tissue microarray (TMA) of the 87 consecutive specimens was created, and CD68-, CD11c-, CD163-, and MRC1-positive macrophages were detected by immunohistochemical methods. TMAs were digitized, and the expression of macrophage markers was quantitatively assessed. Radicular cysts are characterized by M1 polarization of macrophages while apical granulomas show a significantly higher degree of M2 polarization. Dentigerous cysts have a significantly lower M1 polarization than both analyzed periapical lesions (apical granulomas and radicular cysts) and accordingly, a significantly higher M2 polarization than radicular cysts. Macrophage cell density in dentigerous cysts is significantly lower than in the periapical lesions. The development of apical periodontitis towards apical granulomas or radicular cysts might be directed by macrophage polarization. Radicular cyst formation is associated with an increased M1 polarization of infiltrating macrophages. In contrast to radicular cysts, dentigerous cysts are characterized by a low macrophage infiltration and a high degree of M2 polarization, possibly reflecting their developmental rather than inflammatory origin. As M1 polarization of macrophages is triggered by bacterial antigens, these results underline the need for sufficient bacterial clearance during endodontic treatment to prevent a possible M1 macrophage-derived stimulus for radicular cyst

  14. Preshipment testing success: resolution of a nasal sinus granuloma in a captive koala (Phascolarctos cinereus) caused by Cryptococcus gattii.

    Science.gov (United States)

    Wynne, Janna; Klause, Stephen; Stadler, Cynthia K; Pye, Geoffrey W; Meyer, Wieland; Sykes, Jane E

    2012-12-01

    A 3-yr-old female koala (Phascolarctos cinereus) was diagnosed with a nasal sinus granuloma caused by Cryptococcus gattii after a pre-shipment examination revealed a latex cryptococcal agglutination titer of 1:512. Successful medical and surgical treatment of the granuloma was monitored using serial latex cryptococcal agglutination titers, serum levels of antifungal drugs, and advanced imaging.

  15. Proliferative activity in oral pyogenic granuloma: A comparative immunohistochemical study

    Directory of Open Access Journals (Sweden)

    Rezvani Gita

    2010-07-01

    Full Text Available Context: Pyogenic granuloma (PG is one of the most common reactive vascular lesions in the oral mucosa, which has been divided into the lobular capillary hemangioma (LCH and the non lobular type (non-LCH as two distinct entities, on the basis of some investigations. Aims: This study aims to compare the proliferative and angiogenic activity of two histological types of PG to determine whether they have two distinct types of biological behavior. Settings and Design: In this retrospective cross-sectional study, immunostaining was performed on 10 cases of each type of PG. Materials and Methods: About 4μm sections were cut from formalin-fixed paraffin-embedded blocks and each specimen was stained with both anti-CD31 and anti-Ki-67 antibodies simultaneously. Labeling index (LI was determined for both types by counting Ki-67 and CD31 positive cells separately and simultaneously in 1000 stromal and luminal cells. Micro vessel count (MVC, the mean number of micro vessels in five areas at Χ200 magnification, was also determined for both groups. Statistical Analysis: The results were statistically compared using the Mann-Whitney U-test. Results: Ki-67 LI in LCH (5.4 ± 2.4 was higher than non-LCH (3.9 ± 3.9. The percentage of CD31 positive cells in LCH (28.5 ± 22 was lower than non-LCH (37.1 ± 20.8 and simultaneously immunostaining for both markers in LCH type (2.4 ± 2.1 was higher than non-LCH (1.2 ± 1. The MVC was approximately 77.35 ± 34.6 and 82.6 ± 42.7 in the lobular areas of LCH and central areas of non-LCH PG, respectively. These differences were not statistically significant. Conclusions: These results demonstrate a higher proliferation activity in endothelial cells of LCH PG than in non-LCH.

  16. Economic evaluation of seizures associated with solitary cysticercus granuloma.

    Science.gov (United States)

    Murthy, J M K; Rajshekar, G

    2007-01-01

    Patients with solitary cysticercus granuloma (SCG) develop acute symptomatic seizures because of the inflammatory response of the brain and the seizures are self-limiting. Thus seizure disorder associated with SCG provides a good model to study the total cost of illness (COI). COI of new-onset seizures associated with SCG was studied in 59 consecutive patients registered at the epilepsy clinic. Direct treatment-related costs and indirect costs, man-days lost and wages lost were evaluated. The relative cost was calculated as the percentage of per capita gross national product (GNP) at current prices for the year 1997-1998. The total COI, for treating seizure disorder associated with SCG per the period of CT resolution of the lesion per patient was INR 7273.7 (US$ 174.66, I$ 943.16) and he/she would be spending 50.9% of per capita GNP The direct cost per patient was INR 5916 (US$ 137.14, 41.4% of per capita GNP). If the patient had received only AEDs for the period of resolution of CT lesion, the cost would be INR 5702.48 (US$132.2, 40% of per capita GNP). The extra expenditure on albendazole and steroid was INR 213.72 (US$ 4.95), 3.6% of the total direct cost and 20.7% of the medication cost. Indirect cost (average wage loss) per patient was INR 1312.7 (US$ 30.42) and it accounted for 9% of per capita GNP. The one-time expenditure at present costs (adjusted for inflation) to the nation to treat all the prevalence cases is to the tune of INR 1.184 billion (US$ 2.605) and 0.0037% of GNP. This study suggests that seizure disorder associated with SCG, a potentially preventable disorder, is a good model to study the total COI. The one-time expenditure at present costs to the nation to treat all the prevalence cases of seizure disorder associated with SCG is to the tune of INR 1.184 billion (US$ 2.605 million) and 0.0037% of GNP.

  17. Hacking into the granuloma: could antibody antibiotic conjugates be developed for TB?

    Science.gov (United States)

    Ekins, Sean

    2014-12-01

    Alternatives to small molecule or vaccine approaches to treating tuberculosis are rarely discussed. Attacking Mycobacterium tuberculosis in the granuloma represents a challenge. It is proposed that the conjugation of small molecules onto a monoclonal antibody that recognizes macrophage or lymphocytes cell surface receptors, might be a way to target the bacteria in the granuloma. This antibody drug conjugate approach is currently being used in 2 FDA approved targeted cancer therapies. The pros and cons of this proposal for further research are discussed. Copyright © 2014 Elsevier Ltd. All rights reserved.

  18. Suture Granuloma Showing False-Positive Findings on FDG-PET

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    Kohei Takahara

    2013-01-01

    Full Text Available We report a case of a 33-year-old male with a mixed germ-cell testicular tumor. Postoperative follow-up FDG-PET revealed concentration of FDG in the left inguinal area which is not tumor metastasis or local recurrence but suture reactivity granuloma. In this paper, we reviewed suture granulomas associated with false-positive findings on FDG-PET after surgery. If FDG-PET will be used more frequently in the future, it will be necessary to refrain from using silk thread in order to prevent any unnecessary surgery.

  19. Chololesterol granuloma in the middle cranial fossa: report of two cases

    International Nuclear Information System (INIS)

    Morioka, T.; Fujii, K.; Nishio, S.; Hasuo, K.; Hisashi, K.; Miyagi, Y.; Nagata, S.; Fukui, M.

    1995-01-01

    We report two cases of cholesterol granuloma in the middle cranial fossa. On CT the lesions appeared as a nonspecific, nonenhancing soft-tissue mass with bone erosion. On MRI they were seen as areas of high signal intensity surrounded by a low-intensity peripheral zone on both T1- and T2-weighted images. Cholesterol granuloma is thought to occur when pneumatised cells in the temporal bone become obstructed. Although this lesion usually occurs in the petrous bone, it can extend to the middle cranial fossa. The diagnosis and surgical management are discussed. (orig.)

  20. Suture Granuloma Mimicking Renal Cell Carcinoma: Magnetic Resonance Imaging (MRI and Pathologic Correlation

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    İbrahim İlker Öz

    2014-11-01

    Full Text Available Solid renal masses are generally distinguished with contrast enhancement and intratumoral fatty foci by radiological examinations. The present of enhancement is most important criteria for diagnosis of malignant lesions. Generally, a contrast enhanced solid mass in kidney is accepted as a neoplasm. Foreign body granuloma is an extraordinary cause of enhanced solid renal mass. This case of a renal suture granuloma demonstrated peripheral enhanced exophytic renal mass mimic renal cell carcinoma, and underwent surgery. At the solid renal mass with different radiological features, biopsy is an option to determining the necessity of surgery as well as the surgical approach.

  1. Pulmonary atresia

    Science.gov (United States)

    ... another type of congenital heart defect called a patent ductus arteriosus (PDA). Pulmonary atresia may occur with ... known way to prevent this condition. All pregnant women should get routine prenatal care. Many congenital defects ...

  2. Pulmonary Embolism

    Science.gov (United States)

    ... increase the risk for PE, such as: Being bedridden or unable to move around much Having surgery ... of pulmonary embolism (PE) include unexplained shortness of breath, problems breathing, chest pain, coughing , or coughing up ...

  3. A Gray-purple Mass on the Floor of the Mouth: Gigantic Mucogingival Pyogenic Granuloma in a Teenage Patient.

    Science.gov (United States)

    Brunet-LLobet, Lluís; Miranda-Rius, Jaume; Lahor-Soler, Eduard; Mrina, Ombeni; Nadal, Alfons

    2014-01-01

    Pyogenic granuloma is defined as a benign neoplasm of vascular phenotype. This case describes the clinical and histopathological features of a gigantic mucogingival pyogenic granuloma, in a 14-year-old healthy black boy. This exophytic gray-purple mass, related to a toothpick injury, had more than twelve-month evolution on the anterior mandible involving lingual area besides to the floor of the mouth pressing the right salivary duct. Conservative excision was performed, followed by uncomplicated healing with no recurrence in two years. The histopathological examination reported a pyogenic granuloma (lobular capillary haemangioma). The authors provide a discussion of the presurgical differential diagnosis of the lesion. This case report presents an extremely uncommon location of a gigantic pyogenic granuloma, involving mucogingival complex and affecting the salivary outflow. This clinical manuscript may shed light on the controversies about possible mechanisms inducing oral pyogenic granuloma.

  4. Tuberculous granuloma associated to AIDS - a case report

    International Nuclear Information System (INIS)

    Nogueira, Roberto Gomes; Volpato, Margarete Mota; Patricio, Arnaldo; Lima, Silvana Souza; Patricio, Claudia Quelhas; Paula, Enio Almeida Magalhaes de; Cortez, Dalva Helena Gadioli; Ferrao, Maria do Socorro Souza Carneiro

    1998-01-01

    The depression of cellular immunity .caused by HIV explains the development of opportunistic infections or non usual neoplasias involving every human organ, including the CNS. Opportunistic infections are rare in children, and CMV is the most common etiologic agent. Due to frequent contact with aidetical adults, they can develop BK infections presenting frequently milliar pulmonary involvement. In these cases, the CNS involvement frequently might occur, and it is necessary an image evaluation therefore without neurological relevant symptoms it is possible to find brain lesions. (author)

  5. Pulmonary Mycobacterium tuberculosis (Beijing strain infection in a stray dog : clinical communication

    Directory of Open Access Journals (Sweden)

    S.D.C. Parsons

    2008-05-01

    Full Text Available Mycobacterium tuberculosis infection in dogs is rarely reported and has not previously been documented in South Africa. A case of a stray Maltese crossbreed dog with extensive multifocal pulmonary tuberculosis due to M. tuberculosis is described. Pulmonary granulomas in this case were poorly encapsulated and contained large numbers of acid-fast bacteria, highlighting the potential for infected companion animals to excrete the pathogen. Treatment of canine tuberculosis is generally not advised, and for this reason, euthanasia of diseased animals must be advocated in most instances. Physicians and veterinarians must be aware that companion animals with active disease caused by M. tuberculosis could act as a potential source of infection.

  6. Pulmonary Foreign Body Granulomatosis in Dental Technician.

    Science.gov (United States)

    Chung, Sung Jun; Koo, Gun Woo; Park, Dong Won; Kwak, Hyun Jung; Yhi, Ji Young; Moon, Ji-Yong; Kim, Sang-Heon; Sohn, Jang Won; Yoon, Ho Joo; Shin, Dong Ho; Park, Sung Soo; Pyo, Ju Yeon; Oh, Young-Ha; Kim, Tae-Hyung

    2015-10-01

    Occupational lung diseases are caused by several toxic substances including heavy metals; however, the exact pathologic mechanisms remain unknown. In the workplace, dental technicians are often exposed to heavy metals such as cobalt, nickel, or beryllium and occasionally develop occupational lung diseases. We described a case of occupational lung disease in a patient who was employed as a dental technician for over a decade. A 31-year-old, non-smoking woman presented with productive cough and shortness of breath of several weeks duration. Chest computed tomography revealed a large number of scattered, bilateral small pulmonary nodules throughout the lung field, and multiple mediastinal lymph nodes enlargement. Percutaneous needle biopsy showed multifocal small granulomas with foreign body type giant cells suggestive of heavy metals inhalation. The patient's condition improved on simple avoidance strategy for several months. This case highlighted the importance of proper workplace safety.

  7. Tuberculous granuloma associated to AIDS - a case report; Granuloma tuberculoso associado a AIDS - relato de um caso

    Energy Technology Data Exchange (ETDEWEB)

    Nogueira, Roberto Gomes [Escola Paulista de Medicina, Sao Paulo, SP (Brazil); Volpato, Margarete Mota; Patricio, Arnaldo; Lima, Silvana Souza; Patricio, Claudia Quelhas; Paula, Enio Almeida Magalhaes de; Cortez, Dalva Helena Gadioli; Ferrao, Maria do Socorro Souza Carneiro [Complexo Hospitalar do Mandaqui, Sao Paulo, SP (Brazil)

    1998-09-01

    The depression of cellular immunity .caused by HIV explains the development of opportunistic infections or non usual neoplasias involving every human organ, including the CNS. Opportunistic infections are rare in children, and CMV is the most common etiologic agent. Due to frequent contact with aidetical adults, they can develop BK infections presenting frequently milliar pulmonary involvement. In these cases, the CNS involvement frequently might occur, and it is necessary an image evaluation therefore without neurological relevant symptoms it is possible to find brain lesions. (author) 12 refs., 3 figs.

  8. Pulmonary Fibrosis Foundation

    Science.gov (United States)

    ... submissions. MORE We Imagine a World Without Pulmonary Fibrosis The Pulmonary Fibrosis Foundation mobilizes people and resources to provide ... its battle against the deadly lung disease, pulmonary fibrosis (PF). PULMONARY FIBROSIS WALK SURPASSES PARTICIPATION AND FUNDRAISING GOALS Nearly ...

  9. Tolosa-Hunt syndrome: is it really necessary to show granuloma? - The report of eight cases

    Directory of Open Access Journals (Sweden)

    Podgorac Ana

    2017-01-01

    Full Text Available Introduction. Tolosa–Hunt syndrome (THS is a rare entity, characterized by unilateral orbital pain associated with paresis of one or more of the oculomotor cranial nerves and caused by a granulomatous inflammation in the cavernous sinus, superior orbital fissure or orbit. The low prevalence of THS with a broad spectrum of other disorders that could cause painful ophtalmoplegia resulted in a stricter diagnostic criteria of THS in the latest edition of the International Classification of Headache Disorders. Current criteria require demonstration of granuloma by magnetic resonance imaging or biopsy. The diagnosis could be difficult and the initiation of treatment delayed due to a high variablity of clinical presentation of TSH. Reducing the number of patients that, based on clinical presentation, could be classified as having THS, but do not fullfil all diagnostic criteria further complicates establishing of correct diagnosis. Case report. Hereby we presented eight patients diagnosed with and treated for THS. Inspite the exclusion of other causes of painful ophtalmoplegia, granuloma could not be demonstrated in a half of patients. Clinical presentation of THS in patients with and without shown granuloma, did not significantly differ concerning headache characteristics (localization, intensity, quality, duration preceding cranial nerve palsy, response to steroids, the affected cranial nerve, disease course and response to the treatment, as well as types of diagnostic procedures that were performed in ruling out other diseases from the extensive differential diagnosis of painful ophthalmoplegia. Conclusion. There is no significant difference between the THS patients with and without demonstrated granuloma.

  10. Cutaneous foreign body granulomas associated with lipolytic cocktail: Who is the enemy, mesotherapy or drugs injected?

    Science.gov (United States)

    Kutlubay, Zekayi; Gokalp, Hilal; Ince, Umit; Engin, Burhan

    2017-10-01

    Mesotherapy is widely used for its lipolytic effect as an alternative procedure to surgical methods. Although many benefits of lipolytic mesotherapy have been observed, numerous side effects have also been reported. Here, we report a case of cutaneous foreign body granulomas that occurred after lipolytic mesotherapy.

  11. Dentin dysplasia type I with pyogenic granuloma in a 12-year-old girl

    Directory of Open Access Journals (Sweden)

    Nirmala SVSG

    2009-06-01

    Full Text Available This paper presents a case of dentin dysplasia, a rarely reported disorder that is also associated with pyogenic granuloma in a 12-year-old girl. The case presented as excessively mobile teeth that appeared radiographically as rootless teeth and also as a soft tissue lesion in the right maxillary anterior region.

  12. Taurine drinking ameliorates hepatic granuloma and fibrosis in mice infected with Schistosoma japonicum.

    Science.gov (United States)

    Yu, Yan-Rong; Ni, Xian-Qiang; Huang, Jie; Zhu, Yong-Hong; Qi, Yong-Fen

    2016-04-01

    In schistosomiasis, egg-induced hepatic granuloma formation is a cytokine-mediated, predominantly CD4(+) Th2 immune response that can give rise to hepatic fibrosis. Hepatic fibrosis is the main cause of increased morbidity and mortality in humans with schistosome infection. Taurine has various physiological functions and hepatoprotective properties as well as anti-inflammatory and immunomodulatory activity. However, little is known about the role of taurine in schistosome egg-induced granuloma formation and fibrosis. We aimed to evaluate the therapeutic potential of taurine as preventative treatment for Schistosoma japonicum infection. Mice infected with S. japonicum cercariae were supplied with taurine drinking water (1% w/v) for 4 weeks starting at 4 weeks post-infection. Taurine supplementation significantly improved the liver pathologic findings, reduced the serum levels of aminotransferases and area of hepatic granuloma, and prevented fibrosis progression. In addition, taurine decreased the expression of the granulomatous and fibrogenic mediators transforming growth factor β1, tumor necrosis factor α, monocyte chemotactic protein 1α and macrophage inflammatory protein 1α as well as the endoplasmic reticulum stress marker glucose-regulated protein 78. Thus, taurine can significantly attenuate S. japonicum egg-induced hepatic granuloma and fibrosis, which may depend in part on the downregulation of some relevant cytokine/chemokines and reducing the endoplasmic reticulum stress response.

  13. Conservative approach in the management of oral pyogenic granuloma by sclerotherapy

    Directory of Open Access Journals (Sweden)

    Tanya Khaitan

    2018-01-01

    Full Text Available Background: Pyogenic granuloma is a common, non-neoplastic reactive growth of the oral cavity. Treatment consists of conservative surgical excision, cryosurgery, or laser surgery. These are usually adequate but often result in scars and recurrence. Therefore, this study was undertaken to determine the effectiveness of sclerotherapy in the treatment of oral pyogenic granuloma. Materials and Methods: Forty clinically diagnosed cases of oral pyogenic granuloma were included in the study. After topical anesthesia application, 0.2–0.5 mL of sodium tetradecyl sulfate was delivered by insulin syringe into the base of lesions till the solution leaked out. Each patient was recalled after 1 week and evaluated. If the lesion did not resolve, second and third injections were given consecutively. Results: All the 40 patients showed complete regression of the lesion after one to four consecutive shots in weekly interval. Conclusion: Intralesional sclerotherapy can be considered as an effective non-surgical treatment procedure for oral pyogenic granuloma.

  14. An enigmatic clinical presentation of plasma cell granuloma of the oral cavity

    Directory of Open Access Journals (Sweden)

    Pravesh Kumar Jhingta

    2018-01-01

    Full Text Available Plasma cell granuloma is a rare benign lesion characterized by the infiltration of plasma cells; primarily occurring in the lungs. It is also seen to occur in the brain, kidney stomach, heart, and so on but its intraoral occurrence is a rarity. This case report represents one of the uncommon locations in the oral cavity affected by plasma cell granuloma, its clinical and histological features, and establishes the differential diagnosis with other malignant or benign disease entities and planning the treatment accordingly. This report discusses the diagnostic enigma and the associated terminology of plasma cell granulomas and reinforces the need for performing biopsy and a histopathological or immune histochemical study, irrespective of the clinical features and clinical diagnosis of the lesion. In this case a 52-year-old female, presented with gingival enlargement in the mandibular anterior region, treated by excisional biopsy. Histological evaluation revealed plasma cell infiltrates in the connective tissue. The immune-histochemistry revealed kappa and lambda light chains with a polyclonal staining pattern, which confirmed the diagnosis of plasma cell granuloma.

  15. Th1 and Th2-like protein balance in human inflammatory radicular cysts and periapical granulomas.

    Science.gov (United States)

    de Carvalho Fraga, Carlos Alberto; Alves, Lucas Rodrigues; de Sousa, Adriana Alkmim; de Jesus, Sabrina Ferreira; Vilela, Daniel Nogueira; Pereira, Camila Santos; Batista Domingos, Patrícia Luciana; Viana, Agostinho Gonçalves; Jham, Bruno Correia; Batista de Paula, Alfredo Maurício; Sena Guimarães, André Luiz

    2013-04-01

    Chronic dental periapical lesions result from chronic inflammation of periapical tissues caused by continuous antigenic stimulation from infected root canals. Recent findings have suggested that T helper (Th) 1 and Th2-like cytokines are important in the pathogenesis of chronic periapical inflammatory diseases. However, the mechanisms regulating these immunoinflammatory pathways have not been fully elucidated. Thus, the aim of this study was to evaluate interleukin (IL)-4, IL-12, and interferon γ (IFN-γ) protein levels in human radicular cysts and periapical granulomas. Archived samples of cysts (n = 52) and granulomas (n = 27) were sectioned and submitted to immunohistochemistry to evaluate the tissue expression of IL-4, IL-12, and IFN-γ. The data were analyzed using the Mann-Whitney U test (P cysts. IL-4 expression was stronger in periapical granulomas than in radicular cysts. IL-12 was not detected in any of the samples. Our study showed that IFN-γ protein levels are increased in radicular cysts, whereas IL-4 expression is stronger in samples of periapical granulomas. Further studies are necessary to elucidate the signaling pathways mediated by these cytokines and to facilitate the development of more effective periapical disease management strategies. Copyright © 2013 American Association of Endodontists. All rights reserved.

  16. Evaluation of Felis domesticus allergen I as a possible autoallergen in cats with eosinophilic granuloma complex

    NARCIS (Netherlands)

    Wisselink, Marinus A.; van Ree, Ronald; Willemse, Ton

    2002-01-01

    OBJECTIVE: To investigate the role of Felis domesticus allergen I (Feld I) in the pathogenesis of eosinophilic granuloma complex (EGC) in cats. ANIMALS: 7 healthy cats and 6 cats with EGC. PROCEDURE: Epidermis was removed from 4 areas. Rubber stoppers filled with Feld I, saline (0.9% NaCl) solution,

  17. A case of eosinophilic granuloma of the calvarium and the diagnostic value of the bone scintigraphy

    International Nuclear Information System (INIS)

    Sugiyama, Hirotaka; Nakashima, Yasutaka; Takahashi, Shozo; Oyama, Teruo; Nishimura, Kenichi.

    1981-01-01

    An operative case of eosinophilic granuloma in a 2 year and 3 month old boy was presented. The authors found that bone scintigraphy using sup(99m)Tc-diphosphonate is valuable in determining the spread of eosinophilic granulomatous lesion in the skull. We recommend this procedure before and after operation on this disease. (author)

  18. CT-guided corticosteroid injection for solitary eosinophilic granuloma of the spine

    Energy Technology Data Exchange (ETDEWEB)

    Rimondi, Eugenio; Rossi, Giuseppe [Istituto Ortopedico Rizzoli, University of Bologna, Department of Radiology and Interventional Angiographic Radiology, Bologna (Italy); Mavrogenis, Andreas F. [Istituto Ortopedico Rizzoli, University of Bologna, Department of Orthopedics, Bologna (Italy); Istituto Ortopedico Rizzoli, University of Bologna, Department of Orthopaedics, Orthopaedic Oncology Service, Bologna (Italy); Ussia, Giuseppe; Angelini, Andrea [Istituto Ortopedico Rizzoli, University of Bologna, Department of Orthopedics, Bologna (Italy); Ruggieri, Pietro [Istituto Ortopedico Rizzoli, University of Bologna, Department of Orthopedics, Bologna (Italy); Istituto Ortopedico Rizzoli, University of Bologna, Department of Orthopaedics, Bologna (Italy)

    2011-06-15

    To evaluate the clinical and imaging outcome of patients with symptomatic eosinophilic granuloma of the spine treated with CT-guided intralesional methylprednisolone injection after biopsy. Patients (n =19) with symptomatic solitary eosinophilic granuloma of the spine treated by CT-guided intralesional methylprednisolone injection were retrospectively studied. There were 12 males and seven females with a mean age of 17 years (range, 3-43 years). The mean follow-up was 6 years (median, 4 years; range, 0.5-19 years). Spinal location included the cervical (two patients), thoracic (seven patients), lumbar spine (eight patients), and the sacrum (two patients). Vertebra plana was observed in two patients. All patients had biopsies before treatment. Complete resolution of pain and healing of the lesion was observed in 17 patients (89.5%); none of these patients had recurrence at the latest examination. Reconstitution of the T1 and L1 vertebra plana was observed in both patients. Two patients initially diagnosed and treated for a solitary eosinophilic granuloma had constant pain after the procedure; in these patients, 6 and 12 months after the procedure, respectively, imaging showed multifocal disease and systemic therapy was administered. Complications related to the procedure were not observed. General anesthesia was administered in two patients because of intolerable pain during the procedure. In view of the benign clinical course of eosinophilic granuloma, in patients with symptomatic lesions, CT-guided intralesional corticosteroid injection is a safe and effective outpatient treatment with a low complication rate. (orig.)

  19. Amlodipine induced plasma cell granuloma of the gingiva: A novel case report.

    Science.gov (United States)

    Vishnudas, Bhandari; Sameer, Zope; Shriram, Bansode; Rekha, Kardile

    2014-07-01

    Drug-induced gingival overgrowth (DIGO) can be a serious concern for both patients and clinicians. DIGO is a well-documented side-effect of some pharmacologic agents, including, but not limited to, calcium channel blockers, phenytoin, and cyclosporine. Plasma cell granulomas (pseudotumors) are exceedingly rare, non-neoplastic, reactive tumor-like proliferation, primarily composed of plasma cells that manifest primarily in the lungs, but may occur in various anatomic locations. Intraoral plasma cell granulomas involving the lip, oral mucosa, tongue, and gingiva have been reported in the past. This is the first case report of amlodipine induced plasma cell granuloma of the gingiva in the medical literature presenting a 54 year-old female patient with hypertension, who received amlodipine (10 mg/day, single dose orally) for 2 years, sought medical attention because of developing maxillary anterior massive gingival overgrowth causing functional and esthetic problem, which was treated by excisional biopsy. Histologically, these lesions were composed of mature plasma cells, showing polyclonality for both lambda and kappa light chains and fibrovascular connective tissue stroma confirming a diagnosis of plasma cell granuloma. This case also highlights the need to biopsy for unusual lesions to rule out potential neoplasms.

  20. Central Nervous System Brucellosis Granuloma and White Matter Disease in Immunocompromised Patient.

    Science.gov (United States)

    Alqwaifly, Mohammed; Al-Ajlan, Fahad S; Al-Hindi, Hindi; Al Semari, Abdulaziz

    2017-06-01

    Brucellosis is a multisystem zoonotic disease. We report an unusual case of neurobrucellosis with seizures in an immunocompromised patient in Saudi Arabia who underwent renal transplantation. Magnetic resonance imaging of the brain showed diffuse white matter lesions. Serum and cerebrospinal fluid were positive for Brucella sp. Granuloma was detected in a brain biopsy specimen.

  1. Influence of Structure and Composition on Dynamic Viscoelastic Property of Cartilaginous Tissue: Criteria for Classification between Hyaline Cartilage and Fibrocartilage Based on Mechanical Function

    Science.gov (United States)

    Miyata, Shogo; Tateishi, Tetsuya; Furukawa, Katsuko; Ushida, Takashi

    Recently, many types of methodologies have been developed to regenerate articular cartilage. It is important to assess whether the reconstructed cartilaginous tissue has the appropriate mechanical functions to qualify as hyaline (articular) cartilage. In some cases, the reconstructed tissue may become fibrocartilage and not hyaline cartilage. In this study, we determined the dynamic viscoelastic properties of these two types of cartilage by using compression and shear tests, respectively. Hyaline cartilage specimens were harvested from the articular surface of bovine knee joints and fibrocartilage specimens were harvested from the meniscus tissue of the same. The results of this study revealed that the compressive energy dissipation of hyaline cartilage showed a strong dependence on testing frequency at low frequencies, while that of fibrocartilage did not. Therefore, the compressive energy dissipation that is indicated by the loss tangent could become the criterion for the in vitro assessment of the mechanical function of regenerated cartilage.

  2. Adipose stem cells can secrete angiogenic factors that inhibit hyaline cartilage regeneration.

    Science.gov (United States)

    Lee, Christopher Sd; Burnsed, Olivia A; Raghuram, Vineeth; Kalisvaart, Jonathan; Boyan, Barbara D; Schwartz, Zvi

    2012-08-24

    Adipose stem cells (ASCs) secrete many trophic factors that can stimulate tissue repair, including angiogenic factors, but little is known about how ASCs and their secreted factors influence cartilage regeneration. Therefore, the aim of this study was to determine the effects ASC-secreted factors have in repairing chondral defects. ASCs isolated from male Sprague Dawley rats were cultured in monolayer or alginate microbeads supplemented with growth (GM) or chondrogenic medium (CM). Subsequent co-culture, conditioned media, and in vivo cartilage defect studies were performed. ASC monolayers and microbeads cultured in CM had decreased FGF-2 gene expression and VEGF-A secretion compared to ASCs cultured in GM. Chondrocytes co-cultured with GM-cultured ASCs for 7 days had decreased mRNAs for col2, comp, and runx2. Chondrocytes treated for 12 or 24 hours with conditioned medium from GM-cultured ASCs had reduced sox9, acan, and col2 mRNAs; reduced proliferation and proteoglycan synthesis; and increased apoptosis. ASC-conditioned medium also increased endothelial cell tube lengthening whereas conditioned medium from CM-cultured ASCs had no effect. Treating ASCs with CM reduced or abolished these deleterious effects while adding a neutralizing antibody for VEGF-A eliminated ASC-conditioned medium induced chondrocyte apoptosis and restored proteoglycan synthesis. FGF-2 also mitigated the deleterious effects VEGF-A had on chondrocyte apoptosis and phenotype. When GM-grown ASC pellets were implanted in 1 mm non-critical hyaline cartilage defects in vivo, cartilage regeneration was inhibited as evaluated by radiographic and equilibrium partitioning of an ionic contrast agent via microCT imaging. Histology revealed that defects with GM-cultured ASCs had no tissue ingrowth from the edges of the defect whereas empty defects and defects with CM-grown ASCs had similar amounts of neocartilage formation. ASCs must be treated to reduce the secretion of VEGF-A and other factors that

  3. A 3-dimensional in vitro model of epithelioid granulomas induced by high aspect ratio nanomaterials

    Directory of Open Access Journals (Sweden)

    Hurt Robert H

    2011-05-01

    Full Text Available Abstract Background The most common causes of granulomatous inflammation are persistent pathogens and poorly-degradable irritating materials. A characteristic pathological reaction to intratracheal instillation, pharyngeal aspiration, or inhalation of carbon nanotubes is formation of epithelioid granulomas accompanied by interstitial fibrosis in the lungs. In the mesothelium, a similar response is induced by high aspect ratio nanomaterials, including asbestos fibers, following intraperitoneal injection. This asbestos-like behaviour of some engineered nanomaterials is a concern for their potential adverse health effects in the lungs and mesothelium. We hypothesize that high aspect ratio nanomaterials will induce epithelioid granulomas in nonadherent macrophages in 3D cultures. Results Carbon black particles (Printex 90 and crocidolite asbestos fibers were used as well-characterized reference materials and compared with three commercial samples of multiwalled carbon nanotubes (MWCNTs. Doses were identified in 2D and 3D cultures in order to minimize acute toxicity and to reflect realistic occupational exposures in humans and in previous inhalation studies in rodents. Under serum-free conditions, exposure of nonadherent primary murine bone marrow-derived macrophages to 0.5 μg/ml (0.38 μg/cm2 of crocidolite asbestos fibers or MWCNTs, but not carbon black, induced macrophage differentiation into epithelioid cells and formation of stable aggregates with the characteristic morphology of granulomas. Formation of multinucleated giant cells was also induced by asbestos fibers or MWCNTs in this 3D in vitro model. After 7-14 days, macrophages exposed to high aspect ratio nanomaterials co-expressed proinflammatory (M1 as well as profibrotic (M2 phenotypic markers. Conclusions Induction of epithelioid granulomas appears to correlate with high aspect ratio and complex 3D structure of carbon nanotubes, not with their iron content or surface area. This model

  4. Risk factors for laryngeal trauma and granuloma formation in pediatric intubations.

    Science.gov (United States)

    Jang, Minyoung; Basa, Krystyne; Levi, Jessica

    2018-04-01

    Intubation has been associated with laryngeal injury that often resolves spontaneously without complication. We present a case of a child intubated for less than 48 hours, who presented with dysphonia and intermittent dyspnea two months after intubation due to epiglottic and vocal process granulomas. This is unusual in that multiple granulomas were found in the posterior glottis and supraglottis after short-term intubation. Our objective was to determine if there are risk factors for developing persistent post-intubation sequelae, including the delayed presentation and unusual location of post-intubation granulomas in our case. Case report and systematic literature review. Pubmed database, which is inclusive of MEDLINE, was used to perform a literature review with the search terms ((pediatric OR children OR neonatal OR infant) AND (laryngeal OR supraglottic) AND intubation AND (granuloma OR injury OR complication)). Only English language results were reviewed. Titles and abstracts from 379 results were reviewed. Full text was reviewed from all original studies which included human pediatric subjects and endoscopic examinations after endotracheal intubation. In our case, laryngeal granuloma size reduced significantly after starting anti-reflux medications. The remainder was removed with laryngeal microdebrider with no recurrence at 3 weeks and 2.5 years post-operatively. Overall, 28 of the 379 studies reviewed identified evidence of laryngeal trauma due to intubation, however only 6 studies documented any type of supraglottic injury. Risk factors identified for developing post-intubation sequelae included intubation duration greater than 24 h; trauma to the larynx via various mechanisms including traumatic intubation, need for reintubation and tube changes, and increased movement while intubated; and presence of respiratory tract infection during intubation. Trauma to the larynx during intubation should be avoided to minimize post-intubation injury in pediatric

  5. Distinction between the extracellular matrix of the nucleus pulposus and hyaline cartilage: a requisite for tissue engineering of intervertebral disc

    OpenAIRE

    Mwale F.; Roughley P.; Antoniou J.

    2004-01-01

    Tissue engineering of intervertebral discs (IVD) using mesenchymal stem cells (MSCs) induced to differentiate into a disc-cell phenotype has been considered as an alternative treatment for disc degeneration. However, since there is no unique marker characteristic of discs and since hyaline cartilage and immature nucleus pulposus (NP) possess similar macromolecules in their extracellular matrix, it is currently difficult to recognize MSC conversion to a disc cell. This study was performed to c...

  6. A cell-free scaffold-based cartilage repair provides improved function hyaline-like repair at one year.

    Science.gov (United States)

    Siclari, Alberto; Mascaro, Gennaro; Gentili, Chiara; Cancedda, Ranieri; Boux, Eugenio

    2012-03-01

    Bone marrow stimulation techniques in cartilage repair such as drilling are limited by the formation of fibrous to hyaline-like repair tissue. It has been suggested such techniques can be enhanced by covering the defect with scaffolds. We present an innovative approach using a polyglycolic acid (PGA)-hyaluronan scaffold with platelet-rich-plasma (PRP) in drilling. We asked whether (1) PRP immersed in a cell-free PGA-hyaluronan scaffold improves patient-reported 1-year outcomes for the Knee injury and Osteoarthritis Score (KOOS), and (2) implantation of the scaffold in combination with bone marrow stimulation leads to the formation of hyaline-like cartilage repair tissue. We reviewed 52 patients who had arthroscopic implantation of the PGA-hyaluronan scaffold immersed with PRP in articular cartilage defects of the knee pretreated with Pridie drilling. Patients were assessed by KOOS. At 9 months followup, histologic staining was performed in specimens obtained from five patients to assess the repair tissue quality. The KOOS subscores improved for pain (55 to 91), symptoms (57 to 88), activities of daily living (69 to 86), sports and recreation (36 to 70), and quality of life (38 to 73). The histologic evaluation showed a homogeneous hyaline-like cartilage repair tissue. The cell-free PGA-hyaluronan scaffold combined with PRP leads to cartilage repair and improved patient-reported outcomes (KOOS) during 12 months of followup. Histologic sections showed morphologic features of hyaline-like repair tissue. Long-term followup is needed to determine if the cartilage repair tissue is durable. Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.

  7. Regeneration of hyaline-like cartilage in situ with SOX9 stimulation of bone marrow-derived mesenchymal stem cells

    OpenAIRE

    Zhang, Xiaowei; Wu, Shili; Naccarato, Ty; Prakash-Damani, Manan; Chou, Yuan; Chu, Cong-Qiu; Zhu, Yong

    2017-01-01

    Microfracture, a common procedure for treatment of cartilage injury, induces fibrocartilage repair by recruiting bone marrow derived mesenchymal stem cells (MSC) to the site of cartilage injury. However, fibrocartilage is inferior biomechanically to hyaline cartilage. SRY-type high-mobility group box-9 (SOX9) is a master regulator of chondrogenesis by promoting proliferation and differentiation of MSC into chondrocytes. In this study we aimed to test the therapeutic potential of cell penetrat...

  8. Hyaline cartilage regeneration by combined therapy of microfracture and long-term bone morphogenetic protein-2 delivery.

    Science.gov (United States)

    Yang, Hee Seok; La, Wan-Geun; Bhang, Suk Ho; Kim, Hak-Jun; Im, Gun-Il; Lee, Haeshin; Park, Jung-Ho; Kim, Byung-Soo

    2011-07-01

    Microfracture of cartilage induces migration of bone-marrow-derived mesenchymal stem cells. However, this treatment often results in fibrocartilage regeneration. Growth factors such as bone morphogenetic protein (BMP)-2 induce the differentiation of bone-marrow-derived mesenchymal stem cells into chondrocytes, which can be used for hyaline cartilage regeneration. Here, we tested the hypothesis that long-term delivery of BMP-2 to cartilage defects subjected to microfracture results in regeneration of high-quality hyaline-like cartilage, as opposed to short-term delivery of BMP-2 or no BMP-2 delivery. Heparin-conjugated fibrin (HCF) and normal fibrin were used as carriers for the long- and short-term delivery of BMP-2, respectively. Rabbit articular cartilage defects were treated with microfracture combined with one of the following: no treatment, fibrin, short-term delivery of BMP-2, HCF, or long-term delivery of BMP-2. Eight weeks after treatment, histological analysis revealed that the long-term delivery of BMP-2 group (microfracture + HCF + BMP-2) showed the most staining with alcian blue. A biochemical assay, real-time polymerase chain reaction assay and Western blot analysis all revealed that the long-term delivery of BMP-2 group had the highest glucosaminoglycan content as well as the highest expression level of collagen type II. Taken together, the long-term delivery of BMP-2 to cartilage defects subjected to microfracture resulted in regeneration of hyaline-like cartilage, as opposed to short-term delivery or no BMP-2 delivery. Therefore, this method could be more convenient for hyaline cartilage regeneration than autologous chondrocyte implantation due to its less invasive nature and lack of cell implantation.

  9. Pulmonary abscess

    International Nuclear Information System (INIS)

    Valencia Chavez, Maria de la Cruz

    2000-01-01

    Pulmonary abscess is defined as a suppurative process and bounded, caused by piogens organisms that it progresses to central necrosis and it commits an or more areas of the pulmonary parenchyma. Initially it is impossible to differ of a located pneumonia, but when the lesion communicates with a bronchus, part of the neurotic tissue is replaced by air, producing the classic image radiological fluid-air. The presence of multiple lesions smaller than 2 cms of diameter cm is defined arbitrarily as necrotizing pneumonia it is indistinguishable of an abscess. The paper includes the pathogenesis and etiology, clinical course, diagnostic and treatment

  10. Rotating three-dimensional dynamic culture of adult human bone marrow-derived cells for tissue engineering of hyaline cartilage.

    Science.gov (United States)

    Sakai, Shinsuke; Mishima, Hajime; Ishii, Tomoo; Akaogi, Hiroshi; Yoshioka, Tomokazu; Ohyabu, Yoshimi; Chang, Fei; Ochiai, Naoyuki; Uemura, Toshimasa

    2009-04-01

    The method of constructing cartilage tissue from bone marrow-derived cells in vitro is considered a valuable technique for hyaline cartilage regenerative medicine. Using a rotating wall vessel (RWV) bioreactor developed in a NASA space experiment, we attempted to efficiently construct hyaline cartilage tissue from human bone marrow-derived cells without using a scaffold. Bone marrow aspirates were obtained from the iliac crest of nine patients during orthopedic operation. After their proliferation in monolayer culture, the adherent cells were cultured in the RWV bioreactor with chondrogenic medium for 2 weeks. Cells from the same source were cultured in pellet culture as controls. Histological and immunohistological evaluations (collagen type I and II) and quantification of glycosaminoglycan were performed on formed tissues and compared. The engineered constructs obtained using the RWV bioreactor showed strong features of hyaline cartilage in terms of their morphology as determined by histological and immunohistological evaluations. The glycosaminoglycan contents per microg DNA of the tissues were 10.01 +/- 3.49 microg/microg DNA in the case of the RWV bioreactor and 6.27 +/- 3.41 microg/microg DNA in the case of the pellet culture, and their difference was significant. The RWV bioreactor could provide an excellent environment for three-dimensional cartilage tissue architecture that can promote the chondrogenic differentiation of adult human bone marrow-derived cells.

  11. Regeneration of hyaline cartilage by cell-mediated gene therapy using transforming growth factor beta 1-producing fibroblasts.

    Science.gov (United States)

    Lee, K H; Song, S U; Hwang, T S; Yi, Y; Oh, I S; Lee, J Y; Choi, K B; Choi, M S; Kim, S J

    2001-09-20

    Transforming growth factor beta (TGF-beta) has been considered as a candidate for gene therapy of orthopedic diseases. The possible application of cell-mediated TGF-beta gene therapy as a new treatment regimen for degenerative arthritis was investigated. In this study, fibroblasts expressing active TGF-beta 1 were injected into the knee joints of rabbits with artificially made cartilage defects to evaluate the feasibility of this therapy for orthopedic diseases. Two to 3 weeks after the injection there was evidence of cartilage regeneration, and at 4 to 6 weeks the cartilage defect was completely filled with newly grown hyaline cartilage. Histological analyses of the regenerated cartilage suggested that it was well integrated with the adjacent normal cartilage at the sides of the defect and that the newly formed tissue was indeed hyaline cartilage. Our findings suggest that cell-mediated TGF-beta 1 gene therapy may be a novel treatment for orthopedic diseases in which hyaline cartilage damage has occurred.

  12. Effects of growth factors and glucosamine on porcine mandibular condylar cartilage cells and hyaline cartilage cells for tissue engineering applications.

    Science.gov (United States)

    Wang, Limin; Detamore, Michael S

    2009-01-01

    Temporomandibular joint (TMJ) condylar cartilage is a distinct cartilage that has both fibrocartilaginous and hyaline-like character, with a thin proliferative zone that separates the fibrocartilaginous fibrous zone at the surface from the hyaline-like mature and hypertrophic zones below. In this study, we compared the effects of insulin-like growth factor-I (IGF-I), basic fibroblast growth factor (bFGF), transforming growth factor beta1 (TGF-beta1), and glucosamine sulphate on porcine TMJ condylar cartilage and ankle cartilage cells in monolayer culture. In general, TMJ condylar cartilage cells proliferated faster than ankle cartilage cells, while ankle cells produced significantly greater amounts of glycosaminoglycans (GAGs) and collagen than TMJ condylar cartilage cells. IGF-I and bFGF were potent stimulators of TMJ cell proliferation, while no signals statistically outperformed controls for ankle cell proliferation. IGF-I was the most effective signal for GAG production with ankle cells, and the most potent upregulator of collagen synthesis for both cell types. Glucosamine sulphate promoted cell proliferation and biosynthesis at specific concentrations and outperformed growth factors in certain instances. In conclusion, hyaline cartilage cells had lower cell numbers and superior biosynthesis compared to TMJ condylar cartilage cells, and we have found IGF-I at 100 ng/mL and glucosamine sulphate at 100 microg/mL to be the most effective signals for these cells under the prescribed conditions.

  13. Detection and quantification of mast cell, vascular endothelial growth factor, and microvessel density in human inflammatory periapical cysts and granulomas.

    Science.gov (United States)

    Fonseca-Silva, T; Santos, C C O; Alves, L R; Dias, L C; Brito, M; De Paula, A M B; Guimarães, A L S

    2012-09-01

    To identify and quantify mast cell (MC), vascular endothelial growth factor (VEGF) expression and microvessel density (MVD) in human periapical cysts and granulomas. Archived samples of cysts (n = 40) and granulomas (n = 28) were sectioned and stained with toluidine blue. MCs were identified and counted. Immunohistochemical reactions were employed to evaluate the tissue expression of VEGF and vessels. MVD was estimated by determining the areas of tissue labelled with CD31 antibody. The data were analysed using the Mann-Whitney test (P cysts than in granulomas (P cysts. Moreover, the identification of VEGF and MVD was consistent with the immune mechanisms involved in the lesions. © 2012 International Endodontic Journal.

  14. Variability in tuberculosis granuloma T cell responses exists, but a balance of pro- and anti-inflammatory cytokines is associated with sterilization.

    Directory of Open Access Journals (Sweden)

    Hannah Priyadarshini Gideon

    2015-01-01

    Full Text Available Lung granulomas are the pathologic hallmark of tuberculosis (TB. T cells are a major cellular component of TB lung granulomas and are known to play an important role in containment of Mycobacterium tuberculosis (Mtb infection. We used cynomolgus macaques, a non-human primate model that recapitulates human TB with clinically active disease, latent infection or early infection, to understand functional characteristics and dynamics of T cells in individual granulomas. We sought to correlate T cell cytokine response and bacterial burden of each granuloma, as well as granuloma and systemic responses in individual animals. Our results support that each granuloma within an individual host is independent with respect to total cell numbers, proportion of T cells, pattern of cytokine response, and bacterial burden. The spectrum of these components overlaps greatly amongst animals with different clinical status, indicating that a diversity of granulomas exists within an individual host. On average only about 8% of T cells from granulomas respond with cytokine production after stimulation with Mtb specific antigens, and few "multi-functional" T cells were observed. However, granulomas were found to be "multi-functional" with respect to the combinations of functional T cells that were identified among lesions from individual animals. Although the responses generally overlapped, sterile granulomas had modestly higher frequencies of T cells making IL-17, TNF and any of T-1 (IFN-γ, IL-2, or TNF and/or T-17 (IL-17 cytokines than non-sterile granulomas. An inverse correlation was observed between bacterial burden with TNF and T-1/T-17 responses in individual granulomas, and a combinatorial analysis of pair-wise cytokine responses indicated that granulomas with T cells producing both pro- and anti-inflammatory cytokines (e.g. IL-10 and IL-17 were associated with clearance of Mtb. Preliminary evaluation suggests that systemic responses in the blood do not

  15. Serum angiotensin-converting enzyme (SACE) activity as an indicator of total body granuloma load and prognosis in sarcoidosis.

    Science.gov (United States)

    Muthuswamy, P P; Lopez-Majano, V; Ranginwala, M; Trainor, W D

    1987-09-01

    The relationship between the level of serum angiotensin converting enzyme (SACE) and the total body granuloma load in patients with sarcoidosis was studied in two groups using SACE levels and total body gallium67 scans. The study group consisted of 22 patients with SACE levels greater than or equal to 100 U/ml (EH-SACE group) and the control group consisted of 24 patients consecutively diagnosed to have sarcoidosis in a one year period with SACE level of less than 80 U/ml. The average number of organs involved in the EH-SACE group was 3.9 +/- 1 compared to 2.3 +/- 1 in the control group (p less than 0.0001). The incidence of extra pulmonary organ involvement in the EH-SACE group was 2.2 +/- 1 organs compared to 1.0 + 0.8 in the control group (p less than 0.0002). The SACE level was correlated with the number of organs involved for all patients with sarcoidosis (r = .55; p less than .0001). Following corticosteroid therapy for 39 +/- 41 weeks the SACE dropped to 64 +/- 45 units in the EH-SACE group. But it took only 13 +/- 10 weeks to normalize the SACE level to 27 +/- 9 units in the control group. The EH-SACE group patients were followed for 114 +/- 64 weeks and 73% of them still have active sarcoidosis requiring repeated cycles of corticosteroid therapy, while after 42 +/- 23 weeks of follow up only 10% of patients from the control group were still on therapy.(ABSTRACT TRUNCATED AT 250 WORDS)

  16. Pulmonary circulation

    International Nuclear Information System (INIS)

    Bongartz, G.; Boos, M.; Scheffler, K.; Steinbrich, W.

    1998-01-01

    Evaluation of the pulmonary vasculature is mainly indicated in patients with suspected pulmonary thromboembolism. The routine procedure so far is ventilation-perfusion scintigraphy alone or in combination with diagnostic assessment of the legs to rule out deep venous thrombosis. The results are still not reliable for the majority of patients. In the case of equivocal diagnosis, invasive conventional angiography is considered the gold standard. With steady improvements in tomographic imaging techniques, such as computed tomography (CT) or magnetic resonance imaging (MRI), non-invasive alternatives to the routine diagnostic work-up are given. Helical CT and CTA techniques are already in clinical use and estimated to sufficiently serve the demands for detection/exclusion of pulmonary thromboembolism. The disadvantages mainly concern peripheral disease and reconstruction artifacts. MRI and MR angiography have been implemented in the diagnosis of pulmonary vascular disease since the introduction of contrast-enhanced MRA. In breath-hold techniques, the entire lung vascularization can be delineated and thromboemboli can be detected. The clinical experience in this field is limited, but MRI has the potential to demonstrate its superiority over CT due to its improved delineation of the vascular periphery and the more comprehensive three-dimensional reconstruction. (orig.)

  17. Pulmonary fibrosis

    International Nuclear Information System (INIS)

    Yamakido, Michio; Okuzaki, Takeshi

    1992-01-01

    When the chest is exposed to x radiation and Co-60 gamma radiation, radiation damage may occur in the lungs 2 to 10 weeks after irradiation. This condition is generally referred to as radiation pneumonitis, with the incidence ranging from 5.4% to 91.8% in the literature. Then radiation pneumonitis may develop into pulmonary fibrosis associated with roentgenologically diffuse linear and ring-like shadows and strong contraction 6 months to one year after irradiation. Until recently, little attention has been paid to pulmonary pneumonitis as a delayed effect of A-bomb radiation. The recent study using the population of 9,253 A-bomb survivors have suggested that the prevalence of pulmonary fibrosis tended to be high in heavily exposed A-bomb survivors. Two other studies using the cohort of 16,956 and 42,728 A-bomb survivors, respectively, have shown that the prevalence of roentgenologically proven pulmonary fibrosis was higher in men than women (1.82% vs 0.41%), was increased with aging and had a higher tendency in heavily exposed A-bomb survivors. (N.K.)

  18. Tenon's capsule granuloma at the donor site after conjunctival grafting: short report Granuloma da cápsula de Tenon em área doadora de retalho conjuntival: relato curto

    Directory of Open Access Journals (Sweden)

    Patrícia Ioschpe Gus

    2003-06-01

    Full Text Available PURPOSE: To describe a rare complication at the donor site of conjunctival transplantation. METHODS: The authors report the clinical, surgical, postoperative and histologic aspects of a Tenon's granuloma that followed an uneventful pterygium excision with conjunctival transplantation. RESULTS: Histology identified an hemangiomatous-like structure with some areas of foreign body granuloma overlying necrotic epithelial cels, easily excised surgically. CONCLUSIONS: Pyogenic granuloma is an inadequate term to describe an inflammatory nonsuppurative reaction that may follow uneventful conjunctival surgery in susceptible individuals.OBJETIVO: Descrever complicação rara em área doadora de retalho conjuntival. MÉTODOS: Os autores descrevem os aspectos clínico, cirúrgico, pós-operatório e histológico de granuloma da cápsula de Tenon em área doadora de conjuntiva que seguiu cirurgia não complicada de excisão de pterígio com transplante conjuntival. RESULTADOS: O exame histológico evidenciou estrutura tipo hemangiomatosa com áreas de granuloma de corpo estranho envolvendo células epiteliais necróticas. CONCLUSÃO: Granuloma piogênico é nomenclatura inadequada para descrever reação inflamatória não supurativa de fácil excisão cirúrgica que pode seguir a retirada de conjuntiva em pacientes suscetíveis.

  19. Pulmonary mucosa-associated lymphoid tissue lymphoma associated with pulmonary sarcoidosis: a case report and literature review.

    Science.gov (United States)

    Kokuho, Nariaki; Terasaki, Yasuhiro; Urushiyama, Hirokazu; Terasaki, Mika; Kunugi, Shinobu; Morimoto, Taisuke; Azuma, Arata; Usuda, Jitsuo; Gemma, Akihiko; Eishi, Yoshinobu; Shimizu, Akira

    2016-05-01

    Differentiating low-grade lymphoma from preexisting sarcoidosis is difficult because of their pathological similarity. This article describes a case of pulmonary mucosa-associated lymphoid tissue lymphoma associated with pulmonary sarcoidosis. The patient, a 45-year-old Japanese man, presented with a 10-year history of pulmonary sarcoidosis and 5-year history of ocular sarcoidosis with histologic findings. Because only the right S3 lung nodule had gradually enlarged, partial resection was performed. Pathological study revealed noncaseous epithelioid granulomas with lymphoplasmacytic proliferation but also marked lymphoid cell proliferation with lymphoepithelial lesion findings that differed from findings of typical sarcoid lesions. Our lymphoepithelial lesion evaluation via immunohistochemistry and analysis of Ig heavy-chain gene rearrangements with assessment of Propionibacterium acnes-specific antibody reactions allow us to report, for the first time, this case of pulmonary mucosa-associated lymphoid tissue lymphoma associated with pulmonary sarcoidosis in exactly the same location, which may be significant for differentiating these diseases and understanding their pathogenic association. Copyright © 2016 Elsevier Inc. All rights reserved.

  20. Microstructural and compositional features of the fibrous and hyaline cartilage on the medial tibial plateau imply a unique role for the hopping locomotion of kangaroo.

    Directory of Open Access Journals (Sweden)

    Bo He

    Full Text Available Hopping provides efficient and energy saving locomotion for kangaroos, but it results in great forces in the knee joints. A previous study has suggested that a unique fibrous cartilage in the central region of the tibial cartilage could serve to decrease the peak stresses generated within kangaroo tibiofemoral joints. However, the influences of the microstructure, composition and mechanical properties of the central fibrous and peripheral hyaline cartilage on the function of the knee joints are still to be defined. The present study showed that the fibrous cartilage was thicker and had a lower chondrocyte density than the hyaline cartilage. Despite having a higher PG content in the middle and deep zones, the fibrous cartilage had an inferior compressive strength compared to the peripheral hyaline cartilage. The fibrous cartilage had a complex three dimensional collagen meshwork with collagen bundles parallel to the surface in the superficial zone, and with collagen bundles both parallel and perpendicular to the surface in the middle and deep zones. The collagen in the hyaline cartilage displayed a typical Benninghoff structure, with collagen fibres parallel to the surface in the superficial zone and collagen fibres perpendicular to the surface in the deep zone. Elastin fibres were found throughout the entire tissue depth of the fibrous cartilage and displayed a similar alignment to the adjacent collagen bundles. In comparison, the elastin fibres in the hyaline cartilage were confined within the superficial zone. This study examined for the first time the fibrillary structure, PG content and compressive properties of the central fibrous cartilage pad and peripheral hyaline cartilage within the kangaroo medial tibial plateau. It provided insights into the microstructure and composition of the fibrous and peripheral hyaline cartilage in relation to the unique mechanical properties of the tissues to provide for the normal activities of kangaroos.

  1. Microstructural and compositional features of the fibrous and hyaline cartilage on the medial tibial plateau imply a unique role for the hopping locomotion of kangaroo.

    Science.gov (United States)

    He, Bo; Wu, Jian Ping; Xu, Jiake; Day, Robert E; Kirk, Thomas Brett

    2013-01-01

    Hopping provides efficient and energy saving locomotion for kangaroos, but it results in great forces in the knee joints. A previous study has suggested that a unique fibrous cartilage in the central region of the tibial cartilage could serve to decrease the peak stresses generated within kangaroo tibiofemoral joints. However, the influences of the microstructure, composition and mechanical properties of the central fibrous and peripheral hyaline cartilage on the function of the knee joints are still to be defined. The present study showed that the fibrous cartilage was thicker and had a lower chondrocyte density than the hyaline cartilage. Despite having a higher PG content in the middle and deep zones, the fibrous cartilage had an inferior compressive strength compared to the peripheral hyaline cartilage. The fibrous cartilage had a complex three dimensional collagen meshwork with collagen bundles parallel to the surface in the superficial zone, and with collagen bundles both parallel and perpendicular to the surface in the middle and deep zones. The collagen in the hyaline cartilage displayed a typical Benninghoff structure, with collagen fibres parallel to the surface in the superficial zone and collagen fibres perpendicular to the surface in the deep zone. Elastin fibres were found throughout the entire tissue depth of the fibrous cartilage and displayed a similar alignment to the adjacent collagen bundles. In comparison, the elastin fibres in the hyaline cartilage were confined within the superficial zone. This study examined for the first time the fibrillary structure, PG content and compressive properties of the central fibrous cartilage pad and peripheral hyaline cartilage within the kangaroo medial tibial plateau. It provided insights into the microstructure and composition of the fibrous and peripheral hyaline cartilage in relation to the unique mechanical properties of the tissues to provide for the normal activities of kangaroos.

  2. Delayed Gadolinium-Enhanced MRI of Cartilage (dGEMRIC) of Cadaveric Shoulders: Comparison of Contrast Dynamics in Hyaline and Fibrous Cartilage after Intraarticular Gadolinium Injection

    Energy Technology Data Exchange (ETDEWEB)

    Wiener, E. (Dept. of Radiology, Charite Universitaetsmedizin Berlin (Germany)); Hodler, J.; Pfirrmann, C.W.A. (Dept. of Radiology, Orthopedic Univ. Hospital Balgrist, Zuerich (Switzerland))

    2009-01-15

    Background: Delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC) is a novel method to investigate cartilaginous and fibrocartilaginous structures. Purpose: To investigate the contrast dynamics in hyaline and fibrous cartilage of the glenohumeral joint after intraarticular injection of gadopentetate dimeglumine. Material and Methods: Transverse T1 maps were acquired on a 1.5T scanner before and after intraarticular injection of 2.0 mmol/l gadopentetate dimeglumine in five cadaveric shoulders using a dual flip angle three-dimensional gradient echo (3D-GRE) sequence. The acquisition time for the T1 maps was 5 min 5 s for the whole shoulder. Measurements were repeated every 15 min over 2.5 hours. Regions of interest (ROIs) covering the glenoid cartilage and the labrum were drawn to assess the temporal evolution of the relaxation parameters. Results: T1 of unenhanced hyaline cartilage of the glenoid was 568+-34 ms. T1 of unenhanced fibrous cartilage of the labrum was 552+-38 ms. Significant differences (P=0.002 and 0.03) in the relaxation parameters were already measurable after 15 min. After 2 to 2.5 hours, hyaline and fibrous cartilage still demonstrated decreasing relaxation parameters, with a larger range of the T1(Gd) values in fibrous cartilage. T1 and ?R1 values of hyaline and fibrous cartilage after 2.5 hours were 351+-16 ms and 1.1+-0.09/s, and 332+-31 ms and 1.2+-0.1/s, respectively. Conclusion: A significant decrease in T1(Gd) was found 15 min after intraarticular contrast injection. Contrast accumulation was faster in hyaline than in fibrous cartilage. After 2.5 hours, contrast accumulation showed a higher rate of decrease in hyaline cartilage, but neither hyaline nor fibrous cartilage had reached equilibrium

  3. Delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) of cadaveric shoulders: comparison of contrast dynamics in hyaline and fibrous cartilage after intraarticular gadolinium injection.

    Science.gov (United States)

    Wiener, E; Hodler, J; Pfirrmann, C W A

    2009-01-01

    Delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC) is a novel method to investigate cartilaginous and fibrocartilaginous structures. To investigate the contrast dynamics in hyaline and fibrous cartilage of the glenohumeral joint after intraarticular injection of gadopentetate dimeglumine. Transverse T(1) maps were acquired on a 1.5T scanner before and after intraarticular injection of 2.0 mmol/l gadopentetate dimeglumine in five cadaveric shoulders using a dual flip angle three-dimensional gradient echo (3D-GRE) sequence. The acquisition time for the T(1) maps was 5 min 5 s for the whole shoulder. Measurements were repeated every 15 min over 2.5 hours. Regions of interest (ROIs) covering the glenoid cartilage and the labrum were drawn to assess the temporal evolution of the relaxation parameters. T(1) of unenhanced hyaline cartilage of the glenoid was 568+/-34 ms. T(1) of unenhanced fibrous cartilage of the labrum was 552+/-38 ms. Significant differences (P=0.002 and 0.03) in the relaxation parameters were already measurable after 15 min. After 2 to 2.5 hours, hyaline and fibrous cartilage still demonstrated decreasing relaxation parameters, with a larger range of the T(1)(Gd) values in fibrous cartilage. T(1) and triangle Delta R(1) values of hyaline and fibrous cartilage after 2.5 hours were 351+/-16 ms and 1.1+/-0.09 s(-1), and 332+/-31 ms and 1.2+/-0.1 s(-1), respectively. A significant decrease in T(1)(Gd) was found 15 min after intraarticular contrast injection. Contrast accumulation was faster in hyaline than in fibrous cartilage. After 2.5 hours, contrast accumulation showed a higher rate of decrease in hyaline cartilage, but neither hyaline nor fibrous cartilage had reached equilibrium.

  4. Contribution of magnetic resonance imaging to the diagnosis of eosinophilic granuloma in children

    International Nuclear Information System (INIS)

    Gaucher, H.; Arnould, V.; Leblan, I.; Mainard, L.; Chastagner, P.; Galloy, M.A.; Hoeffel, J.C.

    1995-01-01

    Magnetic resonance imaging (MRI) findings in 12 patients with biopsy-proven eosinophilic granuloma were studied retrospectively. Signal intensity was variable on T1 images and increased on T2 images and after gadolinium injection. Magnetic resonance imaging identified all the granulomas, as well as accompanying bone marrow and soft tissue changes. In all 12 cases, the lesion appeared larger on MRI displays than on plain roentgenograms. MRI findings had low specificity and consistently tended to overestimate tumor spread, especially when a long limb bone was affected. Chemotherapy was followed by changes in the size and shape of MRI lesions (loss of the high-intensity signal on T2 images and after gadolinium) suggestive of a favorable response to treatment. (authors). 12 refs., 16 figs

  5. Pyogenic granuloma associated with bone loss in an eight year old child: A case report

    Directory of Open Access Journals (Sweden)

    Shenoy S

    2006-01-01

    Full Text Available Soft tissue enlargements of the oral cavity often present a diagnostic challenge because a diverse group of pathologic processes can produce such lesions. An enlargement may represent a variation of normal anatomic structures, inflammation, cysts, developmental anomalies and neoplasm. Within these lesions is a group of reactive hyperplasias, which develop in response to a chronic, recurring tissue injury that stimulates an exuberant or excessive tissue repair response. The pyogenic granuloma is a reactive enlargement that is an inflammatory response to local irritation such as calculus, a fractured tooth, rough dental restoration and foreign materials. This article aims to present a case of pyogenic granuloma in 8 year old child patient associated with resorption of bone in relation to the tooth.

  6. A Foreign Body Granuloma of the Buccal Mucosa Induced by Honeybee Sting

    Directory of Open Access Journals (Sweden)

    Kazuhiko Yamamoto

    2017-01-01

    Full Text Available A foreign body granuloma of the buccal mucosa induced by honeybee sting was reported. The patient was an 82-year-old female who presented with a submucous mass at the right buccal mucosa. The mass was 20 mm in diameter, elastically firm, partly mobile without pain or tenderness, and covered with almost normal mucosa. MR image did not delineate the lesion clearly. Under clinical diagnosis of a benign tumor, the lesion was excised under local anesthesia. The excised lesion was 14×11×9 mm in size and solid and yellowish in cut surface. Histologically, the lesion consisted of granulomatous tissue with a few narrow, curved, eosinophilic structures compatible with decomposed fragments of a honeybee sting and was diagnosed as a foreign body granuloma, although the patient did not recall being stung.

  7. A Man with Pancreatic Head Mass Lesion on Endoscopic Ultrasound and Granuloma on Cytopathology

    Directory of Open Access Journals (Sweden)

    Neda Rad

    2016-12-01

    Full Text Available Primary pancreatic lymphoma is an unlikely malignancy accounting for less than 0.5% of pancreatic tumors. Clinical presentation is often nonspecific and may be clinically misdiagnosed as pancreatic adenocarcinoma. Here we present an Iranian case of primary pancreatic lymphoma in a 47-year-old male suffering from jaundice and 20% weight loss. Endoscopic ultrasound revealed a mixed echoic mass lesion at the head of pancreas. The patient underwent endoscopic ultrasound-guided fine needle aspiration of solid pancreatic mass and histopathologic diagnosis revealed granuloma. Computed tomography-guided core needle biopsy was performed and eventually histological examination showed granuloma that was coherent with the diagnosis of primary pancreatic lymphoma. Primary pancreatic lymphoma is a rare entity presenting with nonspecific symptoms, laboratory and radiological findings. Computed tomography results in combination with clinical and radiological studies generally provide guidance for appropriate investigation.

  8. A Man with Pancreatic Head Mass Lesion on Endoscopic Ultrasound and Granuloma on Cytopathology.

    Science.gov (United States)

    Rad, Neda; Heidarnezhad, Arash; Soheili, Setareh; Mohammad-Alizadeh, Amir Houshang; Nikmanesh, Arash

    2016-01-01

    Primary pancreatic lymphoma is an unlikely malignancy accounting for less than 0.5% of pancreatic tumors. Clinical presentation is often nonspecific and may be clinically misdiagnosed as pancreatic adenocarcinoma. Here we present an Iranian case of primary pancreatic lymphoma in a 47-year-old male suffering from jaundice and 20% weight loss. Endoscopic ultrasound revealed a mixed echoic mass lesion at the head of pancreas. The patient underwent endoscopic ultrasound-guided fine needle aspiration of solid pancreatic mass and histopathologic diagnosis revealed granuloma. Computed tomography-guided core needle biopsy was performed and eventually histological examination showed granuloma that was coherent with the diagnosis of primary pancreatic lymphoma. Primary pancreatic lymphoma is a rare entity presenting with nonspecific symptoms, laboratory and radiological findings. Computed tomography results in combination with clinical and radiological studies generally provide guidance for appropriate investigation.

  9. Alopecia with foreign body granulomas induced by Radiesse injection: A case report.

    Science.gov (United States)

    Liu, Ren-Feng; Kuo, Tseng-Tong; Chao, Yen-Yu; Huang, Yu-Huei

    2018-02-26

    Radiesse is a soft tissue filler which has been widely used for cosmetic enhancement. The safety of Radiesse has been thoroughly investigated via numerous studies. A late-onset complication of Radiesse injection consists of foreign body granulomas, with only three case reports in over 10 years of clinical use. Herein, we describe the case of a patient who experienced alopecia with foreign body granulomas at the injection region one month after receiving a Radiesse injection. To our knowledge, this is the first report in the English literature of alopecia as an adverse event associated with Radiesse injection. The present case reminded physicians to evaluate more cautiously the necessity of injecting filler into hair-bearing area for lifting purpose. This procedure may cause foreign body granulomatous reaction, which may result in hair loss at the injection region.

  10. Immunoexpression of tryptase-positive mast cells in periapical granulomas and radicular cysts.

    Science.gov (United States)

    Costa Neto, H; de Andrade, A L D L; Gordón-Núñez, M A; Freitas, R de A; Galvão, H C

    2015-08-01

    To evaluate and compare the immunoexpression of tryptase in samples of periapical granulomas (PGs) and radicular cysts (RCs) correlating it with the type of lesion, localization, intensity of the inflammatory infiltrate and thickness of the cystic epithelial lining, in order to gain insight into the phlogistic role of these cells in the lesions studied. Twenty-five PGs and twenty-five RCs obtained from human teeth without endodontic treatment were submitted to morphological and immunohistochemical analysis using anti-tryptase antibody. Mast cells were identified and counted in three regions: intra-epithelial, central/superficial and deep portions. The data were analysed using the Mann-Whitney U-test (P periapical lesions in a larger number in periapical granulomas than in radicular cysts, in both central/superficial and deep regions. © 2014 International Endodontic Journal. Published by John Wiley & Sons Ltd.

  11. Radiographic features of central giant cell granuloma of the jaws in children

    International Nuclear Information System (INIS)

    Bodner, L.; Bar-Ziv, J.

    1996-01-01

    The radiographic features of ten pediatric cases of central giant cell granuloma of the jaws were studied, using plain film radiography (PFR), computed tomography (CT), and a dental CT software program (DS). The radiologic features varied from ill-defined destructive lesions to a well-defined, multilocular appearance. Teeth or root displacement was found as the most consistent feature. Root resorption was rare. The features seen on CT were clearer than those seen on PFR. DS, by its visualization of the jaw in three plans - axial, panoramic, and buccolingual - provided useful information for determining the topography of the lesion in its structure (uni- or multilocular) and proximity to adjacent anatomic structures, such as teeth, nerves, or maxillary sinus. CT and, ideally, CT with DS should be used for diagnosis and surgical management of central giant cell granuloma of the jaws in children. (orig.). With 3 figs., 1 tab

  12. Radiographic features of central giant cell granuloma of the jaws in children

    Energy Technology Data Exchange (ETDEWEB)

    Bodner, L. [Department of Oral and Maxillofacial Surgery, Soroka Medical Center, P. O. Box 151, Beer-Sheva 84101 (Israel); Bar-Ziv, J. [Department of Radiology, Hebrew University and Hadassah School of Medicine, Jerusalem (Israel)

    1996-02-01

    The radiographic features of ten pediatric cases of central giant cell granuloma of the jaws were studied, using plain film radiography (PFR), computed tomography (CT), and a dental CT software program (DS). The radiologic features varied from ill-defined destructive lesions to a well-defined, multilocular appearance. Teeth or root displacement was found as the most consistent feature. Root resorption was rare. The features seen on CT were clearer than those seen on PFR. DS, by its visualization of the jaw in three plans - axial, panoramic, and buccolingual - provided useful information for determining the topography of the lesion in its structure (uni- or multilocular) and proximity to adjacent anatomic structures, such as teeth, nerves, or maxillary sinus. CT and, ideally, CT with DS should be used for diagnosis and surgical management of central giant cell granuloma of the jaws in children. (orig.). With 3 figs., 1 tab.

  13. High-resolution CT in eosinophilic granuloma (histiocytosis X) of the lung

    International Nuclear Information System (INIS)

    Godwin, J.D.; Buschman, D.L.; Moore, A.D.A.; Muller, N.L.; Naidich, D.P.; Carvalho, C.R.R.; Takasugi, J.E.; Schmidt, R.A.

    1988-01-01

    Eosinophilic granuloma of the lung is fascinating but poorly understood. Computed tomographic (CT) scans in 18 cases (11 high resolution) showed a variety of striking patterns: cysts up to 4 cm with thin or indiscernible walls, ranging from a few lesions to confluent honeycombing; retriculonodular infiltrate; and nodules 2 mm-2cm, sometimes cavitated. CT showed that the ill-defined lucencies barely visible on radiographs are indeed cysts, rather than preserved normal lung surrounded by infiltrate. High-resolution CT showed that some of the early, small nodules were concentrated along terminal bronchioles within the secondary lobules. The differential diagnosis includes sarcoidosis and idiopathic fibrosis, but the prominent cystic abnormality and the lack of peripheral concentration help to distinguish eosinophilic granuloma

  14. Pulmonary lymphangioleiomyomatosis

    International Nuclear Information System (INIS)

    Shawki, Hilal B.; Muhammad, Shakir M.; Reda, Amal N.; Abdulla, Thair S.; Ardalan, Delaram M.

    2007-01-01

    A 38-year-old Iraqi female, presented with one-year history of exertional dyspnea and exercise intolerance, without systemic or constitutional symptoms. Clinical examination revealed bilateral basal crackles with signs suggestive of left side pleural effusion, chest x-ray showed left sided pleural effusion, and diffuse bilateral basal pulmonary shadowing. Her biochemical analysis, hematological tests, electrocardiogram and echocardiography were normal, aspiration of the fluid revealed a chylothorax, the radiological shadowing was proved by computed tomography scan of the chest to be diffuse cystic lesions involving mostly lower lobes. Open lung biopsy showed dilated lymphatic vessels with surrounding inflammatory cells and smooth muscle fibers consistently with the diagnosis of pulmonary lymphangioleiomyomatosis. (author)

  15. Four whole-istic aspects of schistosome granuloma biology: fractal arrangement, internal regulation, autopoietic component and closure

    Directory of Open Access Journals (Sweden)

    HL Lenzi

    2006-10-01

    Full Text Available This paper centers on some whole-istic organizational and functional aspects of hepatic Schistosoma mansoni granuloma, which is an extremely complex system. First, it structurally develops a collagenic topology, originated bidirectionally from an inward and outward assembly of growth units. Inward growth appears to be originated from myofibroblasts derived from small portal vessel around intravascular entrapped eggs, while outward growth arises from hepatic stellate cells. The auto-assembly of the growth units defines the three-dimensional scaffold of the schistosome granulomas. The granuloma surface irregularity and its border presented fractal dimension equal to 1.58. Second, it is internally regulated by intricate networks of immuneneuroendocrine stimuli orchestrated by leptin and leptin receptors, substance P and Vasoactive intestinal peptide. Third, it can reach the population of ± 40,000 cells and presents an autopoietic component evidenced by internal proliferation (Ki-67+ Cells, and by expression of c-Kit+ Cells, leptin and leptin receptor (Ob-R, granulocyte-colony stimulating factor (G-CSF-R, and erythropoietin (Epo-R receptors. Fourth, the granulomas cells are intimately connected by pan-cadherins, occludin and connexin-43, building a state of closing (granuloma closure. In conclusion, the granuloma is characterized by transitory stages in such a way that its organized structure emerges as a global property which is greater than the sum of actions of its individual cells and extracellular matrix components.

  16. Hyaline cartilage thickness in radiographically normal cadaveric hips: comparison of spiral CT arthrographic and macroscopic measurements.

    Science.gov (United States)

    Wyler, Annabelle; Bousson, Valérie; Bergot, Catherine; Polivka, Marc; Leveque, Eric; Vicaut, Eric; Laredo, Jean-Denis

    2007-02-01

    To assess spiral multidetector computed tomographic (CT) arthrography for the depiction of cartilage thickness in hips without cartilage loss, with evaluation of anatomic slices as the reference standard. Permission to perform imaging studies in cadaveric specimens of individuals who had willed their bodies to science was obtained from the institutional review board. Two independent observers measured the femoral and acetabular hyaline cartilage thickness of 12 radiographically normal cadaveric hips (from six women and five men; age range at death, 52-98 years; mean, 76.5 years) on spiral multidetector CT arthrographic reformations and on coronal anatomic slices. Regions of cartilage loss at gross or histologic examination were excluded. CT arthrographic and anatomic measurements in the coronal plane were compared by using Bland-Altman representation and a paired t test. Differences between mean cartilage thicknesses at the points of measurement were tested by means of analysis of variance. Interobserver and intraobserver reproducibilities were determined. At CT arthrography, mean cartilage thickness ranged from 0.32 to 2.53 mm on the femoral head and from 0.95 to 3.13 mm on the acetabulum. Observers underestimated cartilage thickness in the coronal plane by 0.30 mm +/- 0.52 (mean +/- standard error) at CT arthrography (P cartilage thicknesses at the different measurement points was significant for coronal spiral multidetector CT arthrography and anatomic measurement of the femoral head and acetabulum and for sagittal and transverse CT arthrography of the femoral head (P cartilage thickness from the periphery to the center of the joint ("gradients") were found by means of spiral multidetector CT arthrography and anatomic measurement. Spiral multidetector CT arthrography depicts cartilage thickness gradients in radiographically normal cadaveric hips. (c) RSNA, 2007.

  17. Engineering of hyaline cartilage with a calcified zone using bone marrow stromal cells.

    Science.gov (United States)

    Lee, W D; Hurtig, M B; Pilliar, R M; Stanford, W L; Kandel, R A

    2015-08-01

    In healthy joints, a zone of calcified cartilage (ZCC) provides the mechanical integration between articular cartilage and subchondral bone. Recapitulation of this architectural feature should serve to resist the constant shear force from the movement of the joint and prevent the delamination of tissue-engineered cartilage. Previous approaches to create the ZCC at the cartilage-substrate interface have relied on strategic use of exogenous scaffolds and adhesives, which are susceptible to failure by degradation and wear. In contrast, we report a successful scaffold-free engineering of ZCC to integrate tissue-engineered cartilage and a porous biodegradable bone substitute, using sheep bone marrow stromal cells (BMSCs) as the cell source for both cartilaginous zones. BMSCs were predifferentiated to chondrocytes, harvested and then grown on a porous calcium polyphosphate substrate in the presence of triiodothyronine (T3). T3 was withdrawn, and additional predifferentiated chondrocytes were placed on top of the construct and grown for 21 days. This protocol yielded two distinct zones: hyaline cartilage that accumulated proteoglycans and collagen type II, and calcified cartilage adjacent to the substrate that additionally accumulated mineral and collagen type X. Constructs with the calcified interface had comparable compressive strength to native sheep osteochondral tissue and higher interfacial shear strength compared to control without a calcified zone. This protocol improves on the existing scaffold-free approaches to cartilage tissue engineering by incorporating a calcified zone. Since this protocol employs no xenogeneic material, it will be appropriate for use in preclinical large-animal studies. Copyright © 2015 Osteoarthritis Research Society International. Published by Elsevier Ltd. All rights reserved.

  18. Pyogenic granuloma associated with periodontal abscess and bone loss - A rare case report

    OpenAIRE

    Bhrugesh J Panseriya; Shital Hungund

    2011-01-01

    A diverse group of the pathologic process can produce the enlargement of soft tissues in the oral cavity and often present a diagnostic challenge. This soft tissue enlargement may represent a variation of the normal anatomic structure, inflammatory reaction, cyst, neoplasm, and developmental anomalies. A group of reactive hyperplasias, which develop in response to chronic recurring tissue injury that stimulates an excessive tissue repair response. The pyogenic granuloma (PG) is a reactive enl...

  19. Traumatic ulcerative granuloma with stromal eosinophilia of the palate showing an angiocentric/angiodestructive growth pattern

    OpenAIRE

    Brasileiro, Bernardo Ferreira; Alves, Daniel Berretta; Andrade, Bruno Augusto Benevenuto; Vargas, Pablo Agustin; León, Jorge Esquiche; Almeida, Oslei Paes De

    2012-01-01

    Traumatic ulcerative granuloma with stromal eosinophilia (TUGSE) is a benign, self-limiting lesion of the oral mucosa with unknown pathogenesis. A 65-year-old male patient presented with an ulcerative palate lesion, which on microscopic examination exhibited an exuberant polymorphic lymphoid proliferation, numerous eosinophils, and extensive vascular destruction. The atypical lymphoid cells infiltrating the medium-sized vessels showed positivity for CD3, CD30, and granzyme B, implicating an a...

  20. Bacillus calmette-guerin infection in NADPH oxidase deficiency: defective mycobacterial sequestration and granuloma formation.

    Directory of Open Access Journals (Sweden)

    Christine Deffert

    2014-09-01

    Full Text Available Patients with chronic granulomatous disease (CGD lack generation of reactive oxygen species (ROS through the phagocyte NADPH oxidase NOX2. CGD is an immune deficiency that leads to frequent infections with certain pathogens; this is well documented for S. aureus and A. fumigatus, but less clear for mycobacteria. We therefore performed an extensive literature search which yielded 297 cases of CGD patients with mycobacterial infections; M. bovis BCG was most commonly described (74%. The relationship between NOX2 deficiency and BCG infection however has never been studied in a mouse model. We therefore investigated BCG infection in three different mouse models of CGD: Ncf1 mutants in two different genetic backgrounds and Cybb knock-out mice. In addition, we investigated a macrophage-specific rescue (transgenic expression of Ncf1 under the control of the CD68 promoter. Wild-type mice did not develop severe disease upon BCG injection. In contrast, all three types of CGD mice were highly susceptible to BCG, as witnessed by a severe weight loss, development of hemorrhagic pneumonia, and a high mortality (∼ 50%. Rescue of NOX2 activity in macrophages restored BCG resistance, similar as seen in wild-type mice. Granulomas from mycobacteria-infected wild-type mice generated ROS, while granulomas from CGD mice did not. Bacterial load in CGD mice was only moderately increased, suggesting that it was not crucial for the observed phenotype. CGD mice responded with massively enhanced cytokine release (TNF-α, IFN-γ, IL-17 and IL-12 early after BCG infection, which might account for severity of the disease. Finally, in wild-type mice, macrophages formed clusters and restricted mycobacteria to granulomas, while macrophages and mycobacteria were diffusely distributed in lung tissue from CGD mice. Our results demonstrate that lack of the NADPH oxidase leads to a markedly increased severity of BCG infection through mechanisms including increased cytokine

  1. [Persistence of the omphalomesenteric duct. Childhood differential diagnosis of umbilical granuloma].

    Science.gov (United States)

    Sánchez-Castellanos, M E; Sandoval-Tress, C; Hernández-Torres, M

    2006-01-01

    The omphalomesenteric duct is an embryonic structure which communicates the vitelline duct with the midgut. It normally disappears between the fifth and ninth weeks of intrauterine life. Anomalies related with the total or partial absence of this involution are show in 2 % of the population. We report a case of persistence of the omphalomesenteric duct and review the bibliography to establish the differences between this anomaly and umbilical granuloma, which is the main differential diagnosis.

  2. Percutaneous vertebroplasty for eosinophilic granuloma of the cervical spine in a child

    International Nuclear Information System (INIS)

    Tan, Hua-Qiao; Li, Ming-Hua; Wu, Chun-Gen; Gu, Yi-Feng; Zhang, He; Fang, Chun

    2007-01-01

    We report a case of eosinophilic granuloma at the fourth cervical vertebra in a 10-year-old girl presenting with a 1-month history of cervical pain and stiffness. This lesion was histologically diagnosed by needle biopsy and then treated by percutaneous vertebroplasty. After the procedure, the cervical pain and stiffness resolved rapidly. The height of the vertebral body remained stable without further collapse over a 6-month follow-up period. (orig.)

  3. Recognition of the mycobacterial cord factor by Mincle: relevance for granuloma formation and resistance to tuberculosis

    Directory of Open Access Journals (Sweden)

    Roland eLang

    2013-01-01

    Full Text Available The world’s most successful intracellular bacterial pathogen, Mycobacterium tuberculosis (MTB, survives inside macrophages by blocking phagosome maturation and establishes chronic infection characterized by the formation of granulomas. Trehalose-6,6-dimycolate (TDM, the mycobacterial cord factor, is the most abundant cell wall lipid of virulent mycobacteria, is sufficient to cause granuloma formation, and has long been known to be a major virulence factor of MTB. Recently, TDM has been shown to activate the Syk-Card9 signaling pathway in macrophages through binding to the C-type lectin receptor Mincle. The Mincle-Card9 pathway is required for activation of macrophages by TDM in vitro and for granuloma formation in vivo following injection of TDM. Whether this pathway is also exploited by MTB to reprogram the macrophage into a comfortable niche has not been explored yet. Several recent studies have investigated the phenotype of Mincle-deficient mice in mycobacterial infection, yielding divergent results in terms of a role for Mincle in host resistance. Here, we review these studies, discuss possible reasons for discrepant results and highlight open questions in the role of Mincle and other C-type lectin receptors in the infection biology of MTB.

  4. Concurrent pyogenic granuloma and bullous impetigo of a pregnant woman's finger.

    Science.gov (United States)

    Qin, Rosie; Cohen, Philip R

    2017-03-15

    Bullous impetigo is a superficial skininfection caused by Staphylococcus aureus (S.aureus). Pyogenic granuloma is a common benigntumor frequently associated with prior trauma.Bullous impetigo and pyogenic granuloma may occurin pregnant women. The features of a pregnant womanwith pyogenic granuloma and bullous impetigoconcurrently present in a lesion on her finger aredescribed. PubMed was used to search the followingterms: bullous impetigo, pregnancy, and pyogenicgranuloma. All papers were reviewed; relevantarticles, along with their references, were evaluatedResults: A red ulcerated nodule with a collaretteof epithelium around the tumor and surroundingbullae appeared on the fifth digit of the left hand of a31-year-old woman who was at 36 weeks gestation. Abacterial culture grew methicillin sensitive S. aureus.An excisional biopsy was performed. Histologicfindings revealed not only a benign vascular tumorwith an infiltrate of mixed inflammatory cells, butalso an intraepidermal blister. She received oralantibiotics and there was complete resolution of thefinger lesion and infection with preservation of digitfunction. Albeit uncommon, pyogenic granulomaand bullous impetigo may concurrently occur in thesame lesion. Therapeutic intervention should focuson treating both the benign skin tumor and theinfection.

  5. Interventional management of spine eosinophilic granuloma in children: preliminary investigation of its clinical value

    International Nuclear Information System (INIS)

    He Yu; Wu Chungen; Gu Yifeng; Cheng Yongde

    2011-01-01

    Objective: To assess the clinical value of interventional management in treating spine eosinophilic granuloma in children. Methods: Interventional therapies, including per cutaneous biopsy and percutaneous vertebroplasty (PVP), were carried out in three child patients with five pathologically-proved eosinophilic granuloma lesions, which were localized in the vertebrae. The clinical data were retrospectively analyzed. Visual analogue pain scale (VAS) and Oswesty disability index (ODI) were assessed before and after operation. Results: A total of four operations were successfully carried out in all of three patients. The mean VAS score reduced from 7 before treatment of 1 after treatment. The mean ODI decreased from preoperative 52.5% to postoperative 10.5%. During procedures no significant complications occurred except for cement leakage in some cases. Pain relief and daily activity were remarkably improved after treatment. All patients were followed up for 3 months to 5 years. Conclusion: For the treatment of spine eosinophilic granuloma in children, interventional techniques are mini-invasive, safe and effective therapeutic methods. (authors)

  6. SURGICAL TREATMENT AND RECONSTRUCTION FOR CENTRAL GIANT CELL GRANULOMA OF MANDIBLE - case report and literature review.

    Directory of Open Access Journals (Sweden)

    Elitsa G. Deliverska

    2013-11-01

    Full Text Available Introduction: Central giant cell granuloma (CGCG is a benign aggressive destructive osteolytic lesion of osteoclastic origin. The central giant cell granuloma is often found in the mandible, anterior to the first molars. It most commonly occurs in patients under the age of 30, with a clear female prevalencePurpose: To present a case of CGCG of the lower jaw in Department of Oral and maxillofacial surgery, University Hospital "St. Anna". Although en bloc resection provides the lowest recurrence rate, only a few single case reports describe the use of this technique followed by reconstruction with autogenous bone grafts.Material and methods: The medical history of a 28 years patient with a large central giant cell granuloma in the mandible. Biopsy specimen taken from the lesion showed CGCG followed by curettage with peripheral ostectomy with preservation of the continuity of the mandible.Result: At the 1-year clinical and radiological follow up there was no sign of recurrence. Conclusion: After complete healing of the graft, prosthetic rehabilitation with implants will be perfomed. This allows the best functional and aesthetic results.

  7. Extraoral tumor-like granuloma as a symptom of dental infection

    DEFF Research Database (Denmark)

    Werner Madsen, Sanne; Søgaard, Sara Taylor; Schmidt, Grethe

    2016-01-01

    A 26-year old woman with a cutaneous granuloma and fistula caused by a dental infection was initially mistaken for a tumor. She was under diagnostic examinations at several health care providers for 1.5 years before a final diagnosis and treatment was reached. The fistula originated from a periap...... always be suspected. Relevant imaging of the teeth and jaws will usually reveal the cause. The medical history, the oral and skin findings, biopsy, imaging results and treatment are presented in this article.......A 26-year old woman with a cutaneous granuloma and fistula caused by a dental infection was initially mistaken for a tumor. She was under diagnostic examinations at several health care providers for 1.5 years before a final diagnosis and treatment was reached. The fistula originated from...... a periapical lesion and extended to the facial skin. Differential diagnoses include malignant tumor, bacterial infection, furuncle and a granulomatous-like lesion. When a patient is presented with a fistula or granuloma-like lesion on the cheek, chin or the submandibular region, a dental infection should...

  8. Distinct Th1, Th2 and Treg cytokines balance in chronic periapical granulomas and radicular cysts.

    Science.gov (United States)

    Teixeira-Salum, Tatiana Beber; Rodrigues, Denise Bertulucci Rocha; Gervásio, Aurélia M; Souza, Cássio J A; Rodrigues, Virmondes; Loyola, Adriano Motta

    2010-03-01

    Periapical lesions are a host response that involves immune reaction to prevent dissemination of bacteria from an infected root canal. The purpose of this study was to evaluate the levels of nitric oxide (NO), IL-4, TGF-beta, tumor necrosis factor-alpha (TNF-alpha), and interferon-gamma (IFN-gamma) in chronic periapical lesions and to determine their possible association with clinical and radiographic parameters. Seventeen human radicular cysts and 30 periapical granulomas were used in this study. Cytokines and NO were assessed by enzyme-linked immunosorbent assay and by the Griess reaction respectively confirmed by immunohistochemical. TNF-alpha and IFN-gamma were detected in 10% of granulomas and in 41.2% and 70% of radicular cysts. IL-4 was reactive in 24% of cysts, and TGF-beta was positive in all samples. Patients with tenderness showed significantly higher levels of IFN-gamma and IL-4 (P Periapical granulomas display a regulatory environment characterized by high TGF-beta and low inflammatory cytokine levels, while radicular cysts has mist Th1 and Th2 inflammatory reaction with the presence of IFN-gamma, TNF-alpha, and IL-4.

  9. The analysis of imaging diagnosis and misdiagnosis of vertebral eosinophilic granuloma

    International Nuclear Information System (INIS)

    Liang Weiqiang; Li Sheng

    2007-01-01

    Objective: To analyze the imaging features of vertebral eosinophilic granuloma and the reasons of misdiagnosis, so as to improve the diagnosis accuracy of the disease. Methods: The clinical materials and images findings of 10 patients with vertebral eosinophilic granuloma proved by surgery and histopathology were analyzed retrospectively. Results: Of all the cases, 3 of them were located in cervical vertebra, 5 in thoracic vertebra and 2 in lumbar vertebra. 8 lesions were single and 2 involved the adjacent 2 vertebrae. 4 lesions showed obvious sinking and flattening of the vertebra body, with widening anteroposterior and transverse diameters, 4 cases showed wedge-shaped appearance, 2 cases showed well-defined oval deossification. The appendix of vertebrae in 3 lesions were destroyed with surrounding mass. The intervertebral spaces were normal in 7 cases, slightly widened in 2 cases and slightly narrowed in 1 case. 6 cases showed paravertebra soft tissue swelling or soft tissue mass formation. Conclusion: Though there are some imaging features of vertebral eosinophilic granuloma, close combination with clinical dates and careful analysis of imaging findings can effectively improved the diagnosis accuracy. (authors)

  10. Pulmonary Hypertension

    Science.gov (United States)

    Kim, John S.; McSweeney, Julia; Lee, Joanne; Ivy, Dunbar

    2015-01-01

    Objective Review the pharmacologic treatment options for pulmonary arterial hypertension (PAH) in the cardiac intensive care setting and summarize the most-recent literature supporting these therapies. Data Sources and Study Selection Literature search for prospective studies, retrospective analyses, and case reports evaluating the safety and efficacy of PAH therapies. Data Extraction Mechanisms of action and pharmacokinetics, treatment recommendations, safety considerations, and outcomes for specific medical therapies. Data Synthesis Specific targeted therapies developed for the treatment of adult patients with PAH have been applied for the benefit of children with PAH. With the exception of inhaled nitric oxide, there are no PAH medications approved for children in the US by the FDA. Unfortunately, data on treatment strategies in children with PAH are limited by the small number of randomized controlled clinical trials evaluating the safety and efficacy of specific treatments. The treatment options for PAH in children focus on endothelial-based pathways. Calcium channel blockers are recommended for use in a very small, select group of children who are responsive to vasoreactivity testing at cardiac catheterization. Phosphodiesterase type 5 inhibitor therapy is the most-commonly recommended oral treatment option in children with PAH. Prostacyclins provide adjunctive therapy for the treatment of PAH as infusions (intravenous and subcutaneous) and inhalation agents. Inhaled nitric oxide is the first line vasodilator therapy in persistent pulmonary hypertension of the newborn, and is commonly used in the treatment of PAH in the Intensive Care Unit (ICU). Endothelin receptor antagonists have been shown to improve exercise tolerance and survival in adult patients with PAH. Soluble Guanylate Cyclase Stimulators are the first drug class to be FDA approved for the treatment of chronic thromboembolic pulmonary hypertension. Conclusions Literature and data supporting the

  11. Familial Pulmonary Fibrosis

    Science.gov (United States)

    ... Education & Training Home Conditions Familial Pulmonary Fibrosis Familial Pulmonary Fibrosis Make an Appointment Find a Doctor Ask a ... more members within the same family have Idiopathic Pulmonary Fibrosis (IPF) or any other form of Idiopathic Interstitial ...

  12. Pulmonary Hypertension Overview

    Science.gov (United States)

    ... well as sleep apnea, are common causes of secondary pulmonary hypertension. Other causes include the following: Congestive heart failure Birth defects in the heart Chronic pulmonary thromboembolism (blood clots in the pulmonary arteries) Acquired immunodeficiency syndrome ( ...

  13. Pulmonary Hypertension in Scleroderma

    Science.gov (United States)

    PULMONARY HYPERTENSION IN SCLERODERMA PULMONARY HYPERTENSION Pulmonary hypertension (PH) is high blood pressure in the blood vessels of the lungs. If the high ... the right side of the heart. Patients with scleroderma are at increased risk for developing PH from ...

  14. HIV and Pulmonary Hypertension

    Science.gov (United States)

    ... What do I need to know about pulmonary hypertension in connection with HIV? Although pulmonary hypertension and ... Should an HIV patient be tested for pulmonary hypertension? HIV patients know that medical supervision is critical ...

  15. Pulmonary cryptococcosis in rheumatoid arthritis (RA) patients: Comparison of imaging characteristics among RA, acquired immunodeficiency syndrome, and immunocompetent patients

    International Nuclear Information System (INIS)

    Yanagawa, Noriyo; Sakai, Fumikazu; Takemura, Tamiko; Ishikawa, Satoru; Takaki, Yasunobu; Hishima, Tsunekazu; Kamata, Noriko

    2013-01-01

    Purpose: The imaging characteristics of cryptococcosis in rheumatoid arthritis (RA) patients were analyzed by comparing them with those of acquired immunodeficiency syndrome (AIDS) and immunocompetent patients, and the imaging findings were correlated with pathological findings. Methods: Two radiologists retrospectively compared the computed tomographic (CT) findings of 35 episodes of pulmonary cryptococcosis in 31 patients with 3 kinds of underlying states (10 RA, 12 AIDS, 13 immunocompetent), focusing on the nature, number, and distribution of lesions. The pathological findings of 18 patients (8 RA, 2 AIDS, 8 immunocompetent) were analyzed by two pathologists, and then correlated with imaging findings. Results: The frequencies of consolidation and ground glass attenuation (GGA) were significantly higher, and the frequency of peripheral distribution was significantly lower in the RA group than in the immunocompetent group. Peripheral distribution was less common and generalized distribution was more frequent in the RA group than in the AIDS group. The pathological findings of the AIDS and immunocompetent groups reflected their immune status: There was lack of a granuloma reaction in the AIDS group, and a complete granuloma reaction in the immunocompetent group, while the findings of the RA group varied, including a complete granuloma reaction, a loose granuloma reaction and a hyper-immune reaction. Cases with the last two pathologic findings were symptomatic and showed generalized or central distribution on CT. Conclusion: Cryptococcosis in the RA group showed characteristic radiological and pathological findings compared with the other 2 groups

  16. Pulmonary cryptococcosis in rheumatoid arthritis (RA) patients: Comparison of imaging characteristics among RA, acquired immunodeficiency syndrome, and immunocompetent patients

    Energy Technology Data Exchange (ETDEWEB)

    Yanagawa, Noriyo, E-mail: noriyo_yana@ybb.ne.jp [Departments of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, 3-8-22, Honkomagome, Bunkyo-ku, Tokyo 113-8677 (Japan); Sakai, Fumikazu [Department of Diagnostic Radiology, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka-shi, Saitama 350-1298 (Japan); Takemura, Tamiko [Department of Pathology, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo 150-8935 (Japan); Ishikawa, Satoru [Department of Respiratory Medicine, National Hospital Organization Chiba-East-Hospital, 673 Nitona-cho, Chuo-ku, Chiba-shi, Chiba 260-8712 (Japan); Takaki, Yasunobu [Departments of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, 3-8-22, Honkomagome, Bunkyo-ku, Tokyo 113-8677 (Japan); Hishima, Tsunekazu [Department of Pathology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, 3-8-22, Honkomagome, Bunkyo-ku, Tokyo 113-8677 (Japan); Kamata, Noriko [Departments of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, 3-8-22, Honkomagome, Bunkyo-ku, Tokyo 113-8677 (Japan)

    2013-11-01

    Purpose: The imaging characteristics of cryptococcosis in rheumatoid arthritis (RA) patients were analyzed by comparing them with those of acquired immunodeficiency syndrome (AIDS) and immunocompetent patients, and the imaging findings were correlated with pathological findings. Methods: Two radiologists retrospectively compared the computed tomographic (CT) findings of 35 episodes of pulmonary cryptococcosis in 31 patients with 3 kinds of underlying states (10 RA, 12 AIDS, 13 immunocompetent), focusing on the nature, number, and distribution of lesions. The pathological findings of 18 patients (8 RA, 2 AIDS, 8 immunocompetent) were analyzed by two pathologists, and then correlated with imaging findings. Results: The frequencies of consolidation and ground glass attenuation (GGA) were significantly higher, and the frequency of peripheral distribution was significantly lower in the RA group than in the immunocompetent group. Peripheral distribution was less common and generalized distribution was more frequent in the RA group than in the AIDS group. The pathological findings of the AIDS and immunocompetent groups reflected their immune status: There was lack of a granuloma reaction in the AIDS group, and a complete granuloma reaction in the immunocompetent group, while the findings of the RA group varied, including a complete granuloma reaction, a loose granuloma reaction and a hyper-immune reaction. Cases with the last two pathologic findings were symptomatic and showed generalized or central distribution on CT. Conclusion: Cryptococcosis in the RA group showed characteristic radiological and pathological findings compared with the other 2 groups.

  17. Chitosan-glycerol phosphate/blood implants elicit hyaline cartilage repair integrated with porous subchondral bone in microdrilled rabbit defects.

    Science.gov (United States)

    Hoemann, C D; Sun, J; McKee, M D; Chevrier, A; Rossomacha, E; Rivard, G-E; Hurtig, M; Buschmann, M D

    2007-01-01

    We have previously shown that microfractured ovine defects are repaired with more hyaline cartilage when the defect is treated with in situ-solidified implants of chitosan-glycerol phosphate (chitosan-GP) mixed with autologous whole blood. The objectives of this study were (1) to characterize chitosan-GP/blood clots in vitro, and (2) to develop a rabbit marrow stimulation model in order to determine the effects of the chitosan-GP/blood implant and of debridement on the formation of incipient cartilage repair tissue. Blood clots were characterized by histology and in vitro clot retraction tests. Bilateral 3.5 x 4 mm trochlear defects debrided into the calcified layer were pierced with four microdrill holes and filled with a chitosan-GP/blood implant or allowed to bleed freely as a control. At 1 day post-surgery, initial defects were characterized by histomorphometry (n=3). After 8 weeks of repair, osteochondral repair tissues between or through the drill holes were evaluated by histology, histomorphometry, collagen type II expression, and stereology (n=16). Chitosan-GP solutions structurally stabilized the blood clots by inhibiting clot retraction. Treatment of drilled defects with chitosan-GP/blood clots led to the formation of a more integrated and hyaline repair tissue above a more porous and vascularized subchondral bone plate compared to drilling alone. Correlation analysis of repair tissue between the drill holes revealed that the absence of calcified cartilage and the presence of a porous subchondral bone plate were predictors of greater repair tissue integration with subchondral bone (Phyaline and integrated repair tissue associated with a porous subchondral bone replete with blood vessels. Concomitant regeneration of a vascularized bone plate during cartilage repair could provide progenitors, anabolic factors and nutrients that aid in the formation of hyaline cartilage.

  18. MR imaging of hyaline cartilage in chondromalacia patellae and osteochondrosis dissecans: A comparison with CT-arthrography and arthroscopy

    International Nuclear Information System (INIS)

    Lehner, K.; Heuck, A.; Lukas, P.; Rodammer, G.; Allgayer, B.; Pasquay, E.

    1987-01-01

    Superior to spin-echo sequences, the articular hyaline cartilage was imaged with fast-field-echo sequences (FFE, Gyroscan 0.5-T, Philips) with an excitation pulse angle of 40 0 to 60 0 . Chondromalaceous lesions could be demonstrated in 30 patients with chondropathia patellae with the same sensitivity compared with CT arthrography. In a further 50 patients with osteochondrosis dissecans, discontinuities of the cartilage could be predicted using the deeply invading articular fluid as an indicator. The sensitivity of MR imaging, as controlled by arthroscopy, was very high in that respect. Separate from the nonhemorrhagic articular fluid, the cartilaginous defects could be imaged directly by variation of the FFE parameters

  19. Two rare entities in the same palate lesion: hyalinizing-type clear cell carcinoma and necrotizing sialometaplasia.

    Science.gov (United States)

    Arpaci, Rabia Bozdoğan; Kara, Tuba; Porgali, Canan; Serinsoz, Ebru; Polat, Ayse; Vayisoglu, Yusuf; Ozcan, Cengiz

    2014-05-01

    Hyalinizing clear cell carcinoma is a low-grade malignant epithelial neoplasm of the salivary glands. The tumor has epithelial cells and lacks myoepithelial cells. Necrotizing sialometaplasia is a benign, self-limiting lesion of the salivary glands. The clinical and histologic features mimic those of mucoepidermoid carcinoma or squamous cell carcinoma. The importance of these entities are the rarity of both of them and their potential to be misdiagnosed as other lesions. Pathologists and clinicians should be aware of these entities to prevent misdiagnosis. This is the first clinical report of 2 rare and consecutive different entities of the same location on the hard palate to our knowledge.

  20. Cartilage T2 assessment: differentiation of normal hyaline cartilage and reparative tissue after arthroscopic cartilage repair in equine subjects.

    Science.gov (United States)

    White, Lawrence M; Sussman, Marshall S; Hurtig, Mark; Probyn, Linda; Tomlinson, George; Kandel, Rita

    2006-11-01

    To prospectively assess T2 mapping characteristics of normal articular cartilage and of cartilage at sites of arthroscopic repair, including comparison with histologic results and collagen organization assessed at polarized light microscopy (PLM). Study protocol was compliant with the Canadian Council on Animal Care Guidelines and approved by the institutional animal care committee. Arthroscopic osteochondral autograft transplantation (OAT) and microfracture arthroplasty (MFx) were performed in knees of 10 equine subjects (seven female, three male; age range, 3-5 years). A site of arthroscopically normal cartilage was documented in each joint as a control site. Joints were harvested at 12 (n = 5) and 24 (n = 5) weeks postoperatively and were imaged at 1.5-T magnetic resonance (MR) with a 10-echo sagittal fast spin-echo acquisition. T2 maps of each site (21 OAT harvest, 10 MFx, 12 OAT plug, and 10 control sites) were calculated with linear least-squares curve fitting. Cartilage T2 maps were qualitatively graded as "organized" (normal transition of low-to-high T2 signal from deep to superficial cartilage zones) or "disorganized." Quantitative mean T2 values were calculated for deep, middle, and superficial cartilage at each location. Results were compared with histologic and PLM assessments by using kappa analysis. T2 maps were qualitatively graded as organized at 20 of 53 sites and as disorganized at 33 sites. Perfect agreement was seen between organized T2 and histologic findings of hyaline cartilage and between disorganized T2 and histologic findings of fibrous reparative tissue (kappa = 1.0). Strong agreement was seen between organized T2 and normal PLM findings and between disorganized T2 and abnormal PLM findings (kappa = .92). Quantitative assessment of the deep, middle, and superficial cartilage, respectively, showed mean T2 values of 53.3, 58.6, and 54.9 msec at reparative fibrous tissue sites and 40.7, 53.6, and 61.6 msec at hyaline cartilage sites. A

  1. Pulmonary arterial hypertension : an update

    NARCIS (Netherlands)

    Hoendermis, E. S.

    2011-01-01

    Pulmonary arterial hypertension (PAH), defined as group 1 of the World Heart Organisation (WHO) classification of pulmonary hypertension, is an uncommon disorder of the pulmonary vascular system. It is characterised by an increased pulmonary artery pressure, increased pulmonary vascular resistance

  2. Evaluation of small peripheral pulmonary lesions with thin slice computed tomography

    International Nuclear Information System (INIS)

    Yamada, Kouzo

    1992-01-01

    To evaluate the morphology of small peripheral pulmonary lesions, we studied thin-slice CT (TS-CT) images of 47 small peripheral pulmonary lesions (24 lung cancers, 23 benign lesions) in 47 patients. CT images were examined by two different window and level settings (window level; -600, window width; 1900 and window level; 50, window width; 300). In TS-CT images, findings of all lesions were classified into 3 different patterns (infiltrative type, solid with air-bronchogram type, homogeneous solid type) which were useful in diagnosing histology based on the growth pattern of the lesion. There was no lung cancer case in which calcification was diagnosed to be present on TS-CT. On the other hand, 5 of 9 inflammatory granulomas were recognized to contain calcium which was never seen on conventional CT. The results suggest that TS-CT may have a significant clinical role in diagnosing small peripheral pulmonary lesion by demonstrating macroscopic features and calcification. (author)

  3. Reconstruction of Hyaline Cartilage Deep Layer Properties in 3-Dimensional Cultures of Human Articular Chondrocytes.

    Science.gov (United States)

    Nanduri, Vibudha; Tattikota, Surendra Mohan; T, Avinash Raj; Sriramagiri, Vijaya Rama Rao; Kantipudi, Suma; Pande, Gopal

    2014-06-01

    Articular cartilage (AC) injuries and malformations are commonly noticed because of trauma or age-related degeneration. Many methods have been adopted for replacing or repairing the damaged tissue. Currently available AC repair methods, in several cases, fail to yield good-quality long-lasting results, perhaps because the reconstructed tissue lacks the cellular and matrix properties seen in hyaline cartilage (HC). To reconstruct HC tissue from 2-dimensional (2D) and 3-dimensional (3D) cultures of AC-derived human chondrocytes that would specifically exhibit the cellular and biochemical properties of the deep layer of HC. Descriptive laboratory study. Two-dimensional cultures of human AC-derived chondrocytes were established in classical medium (CM) and newly defined medium (NDM) and maintained for a period of 6 weeks. These cells were suspended in 2 mm-thick collagen I gels, placed in 24-well culture inserts, and further cultured up to 30 days. Properties of chondrocytes, grown in 2D cultures and the reconstructed 3D cartilage tissue, were studied by optical and scanning electron microscopic techniques, immunohistochemistry, and cartilage-specific gene expression profiling by reverse transcription polymerase chain reaction and were compared with those of the deep layer of native human AC. Two-dimensional chondrocyte cultures grown in NDM, in comparison with those grown in CM, showed more chondrocyte-specific gene activity and matrix properties. The NDM-grown chondrocytes in 3D cultures also showed better reproduction of deep layer properties of HC, as confirmed by microscopic and gene expression analysis. The method used in this study can yield cartilage tissue up to approximately 1.6 cm in diameter and 2 mm in thickness that satisfies the very low cell density and matrix composition properties present in the deep layer of normal HC. This study presents a novel and reproducible method for long-term culture of AC-derived chondrocytes and reconstruction of cartilage

  4. Chitosan-glycerol phosphate/blood implants improve hyaline cartilage repair in ovine microfracture defects.

    Science.gov (United States)

    Hoemann, Caroline D; Hurtig, Mark; Rossomacha, Evgeny; Sun, Jun; Chevrier, Anik; Shive, Matthew S; Buschmann, Michael D

    2005-12-01

    one hour postoperatively, chitosan-glycerol phosphate/blood clots showed increased adhesion to the walls of the defects as compared with the blood clots in the untreated microfracture defects. After histological processing, all blood clots in the control microfracture defects had been lost, whereas chitosanglycerol phosphate/blood clot adhered to and was partly retained on the surfaces of the defect. At six months, defects that had been treated with chitosan-glycerol phosphate/blood were filled with significantly more hyaline repair tissue (p cartilage repair compared with microfracture alone by increasing the amount of tissue and improving its biochemical composition and cellular organization.

  5. Pulmonary biomarkers in chronic obstructive pulmonary disease

    NARCIS (Netherlands)

    Barnes, Peter J.; Chowdhury, Badrul; Kharitonov, Sergei A.; Magnussen, Helgo; Page, Clive P.; Postma, Dirkje; Saetta, Marina

    2006-01-01

    There has been increasing interest in using pulmonary biomarkers to understand and monitor the inflammation in the respiratory tract of patients with chronic obstructive pulmonary disease (COPD). In this Pulmonary Perspective we discuss the merits of the various approaches by reviewing the current

  6. Pulmonary sarcoidosis with and without extrapulmonary involvement: a cross-sectional and observational study in China.

    Science.gov (United States)

    Li, Cheng-Wei; Tao, Ru-Jia; Zou, Dan-Feng; Li, Man-Hui; Xu, Xin; Cao, Wei-Jun

    2018-02-16

    Sarcoidosis is a multisystem disease characterised by the formation of granulomas within various organs, mainly the lungs. Several studies from different countries have been undertaken to investigate sarcoidosis with extrapulmonary involvement except from China. The objective of this study is to investigate a comparative clinical analysis in patients with pulmonary sarcoidosis with and without extrapulmonary involvement from China. Data from inpatients diagnosed with sarcoidosis at Shanghai Pulmonary Hospital (Shanghai, China) between January 2009 and December 2014 were retrospectively collected and analysed. Six hundred and thirty-six patients with biopsy-proven sarcoidosis were included in the study, including 378 isolated pulmonary sarcoidosis and 258 pulmonary sarcoidosis plus extrapulmonary involvement. Two hundred and fifty-eight (40.6%) patients with pulmonary sarcoidosis had extrapulmonary involvement. Extrapulmonary localisations were detected mostly in extrathoracic lymph nodes (n=147) and skin (n=86). Statistically significant differences were demonstrated between patients with pulmonary sarcoidosis plus extrapulmonary involvement and patients with isolated pulmonary sarcoidosis for fatigue (16.6%vs8.3%, PSACE) levels (79.0±46.9 IU/L vs 69.7±38.7 IU/L, PSACE levels and more deteriorating HRCT findings, to which clinicians should pay attention. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  7. Effect of low-dose irradiation on structural and mechanical properties of hyaline cartilage-like fibrocartilage.

    Science.gov (United States)

    Öncan, Tevfik; Demirağ, Burak; Ermutlu, Cenk; Yalçinkaya, Ulviye; Özkan, Lütfü

    2013-01-01

    The aim of this study was to analyze the effect of low-dose irradiation on fibrous cartilage and to obtain a hyaline cartilage-like fibrocartilage (HCLF) with similar structural and mechanical properties to hyaline cartilage. An osteochondral defect was created in 40 knees of 20 rabbits. At the 7th postoperative day, a single knee of each rabbit was irradiated with a total dose of 5.0 Gy in 1.0 Gy fractions for 5 days (radiotherapy group), while the other knee was not irradiated (control group). Rabbits were then divided into four groups of 5 rabbits each. The first three groups were sacrificed at the 4th, 8th and the 12th postoperative weeks and cartilage defects were macroscopically and microscopically evaluated. The remaining group of 5 rabbits was sacrificed at the 12th week and biomechanical compression tests were performed on the cartilage defects. There was no significant biomechanical difference between the radiotherapy and the control group (p=0.686). There was no significant macroscopic and microscopic difference between groups (p=0.300). Chondrocyte clustering was observed in the irradiated group. Low-dose irradiation does not affect the mechanical properties of HCLF in vivo. However, structural changes such as chondrocyte clustering were observed.

  8. Which cartilage is regenerated, hyaline cartilage or fibrocartilage? Non-invasive ultrasonic evaluation of tissue-engineered cartilage.

    Science.gov (United States)

    Hattori, K; Takakura, Y; Ohgushi, H; Habata, T; Uematsu, K; Takenaka, M; Ikeuchi, K

    2004-09-01

    To investigate ultrasonic evaluation methods for detecting whether the repair tissue is hyaline cartilage or fibrocartilage in new cartilage regeneration therapy. We examined four experimental rabbit models: a spontaneous repair model (group S), a large cartilage defect model (group L), a periosteal graft model (group P) and a tissue-engineered cartilage regeneration model (group T). From the resulting ultrasonic evaluation, we used %MM (the maximum magnitude of the measurement area divided by that of the intact cartilage) as a quantitative index of cartilage regeneration. The results of the ultrasonic evaluation were compared with the histological findings and histological score. The %MM values were 61.1 +/- 16.5% in group S, 29.8 +/- 15.1% in group L, 36.3 +/- 18.3% in group P and 76.5 +/- 18.7% in group T. The results showed a strong similarity to the histological scoring. The ultrasonic examination showed that all the hyaline-like cartilage in groups S and T had a high %MM (more than 60%). Therefore, we could define the borderline between the two types of regenerated cartilage by the %MM.

  9. Platelet-rich plasma loaded in situ-formed hydrogel enhances hyaline cartilage regeneration by CB1 upregulation.

    Science.gov (United States)

    Lee, Hye-Rim; Park, Kyung Min; Joung, Yoon Ki; Park, Ki Dong; Do, Sun Hee

    2012-11-01

    The efficacy of three-dimensional (3D) culture on the proliferation and maturation of chondrocytes seeded into a hydrogel scaffold was assessed. Three types of hydrogel were prepared for the 3D culture of primary isolated chondrocytes. Chondrocyte proliferation was assessed using a live/dead viability/cytotoxicity assay and semiquantitative RT-PCR after 3D culture in hydrogel. Cylindrical defects in the center of rat xyphoids were used for the implantation of platelet-rich plasma (PRP)/hydrogel composites. Rats were killed at day 7 postoperatively and evaluated histochemically and immunohistologically. Xyphoid chondrocytes proliferated well with time in hydrogels. In the PRP-containing hydrogels, xyphoid defects displayed early formation of chondroid matrix with massive peripheral infiltration of spindle cells. These results were consistent with Safranin-O staining for proteoglycans and immunohistochemistry for type II collagen. Gene expression analyses in vitro revealed aggrecan, type II collagen, and ChM-1 and CB1 upregulation by PRP/hydrogel. PRP/hydrogel provided a suitable environment for hyaline cartilaginous regeneration, leading to anti-inflammation by significant increase of CB1 and inhibiting vascular ingrowth via considerable upregulation of ChM-1. The results provide a valuable reference for the clinical application of hydrogel scaffolds for hyaline cartilage regeneration, as well as the use of autologous PRP to improve cellular proliferation and maturation of xyphoid repair. Copyright © 2012 Wiley Periodicals, Inc.

  10. A preclinical evaluation of an autologous living hyaline-like cartilaginous graft for articular cartilage repair: a pilot study.

    Science.gov (United States)

    Peck, Yvonne; He, Pengfei; Chilla, Geetha Soujanya V N; Poh, Chueh Loo; Wang, Dong-An

    2015-11-09

    In this pilot study, an autologous synthetic scaffold-free construct with hyaline quality, termed living hyaline cartilaginous graft (LhCG), was applied for treating cartilage lesions. Implantation of autologous LhCG was done at load-bearing regions of the knees in skeletally mature mini-pigs for 6 months. Over the course of this study, significant radiographical improvement in LhCG treated sites was observed via magnetic resonance imaging. Furthermore, macroscopic repair was effected by LhCG at endpoint. Microscopic inspection revealed that LhCG engraftment restored cartilage thickness, promoted integration with surrounding native cartilage, produced abundant cartilage-specific matrix molecules, and re-established an intact superficial tangential zone. Importantly, the repair efficacy of LhCG was quantitatively shown to be comparable to native, unaffected cartilage in terms of biochemical composition and biomechanical properties. There were no complications related to the donor site of cartilage biopsy. Collectively, these results imply that LhCG engraftment may be a viable approach for articular cartilage repair.

  11. Biochemical characterisation of navicular hyaline cartilage, navicular fibrocartilage and the deep digital flexor tendon in horses with navicular disease.

    Science.gov (United States)

    Viitanen, M; Bird, J; Smith, R; Tulamo, R-M; May, S A

    2003-10-01

    The study hypothesis was that navicular disease is a process analogous to degenerative joint disease, which leads to changes in navicular fibrocartilage and in deep digital flexor tendon (DDFT) matrix composition and that the process extends to the adjacent distal interphalangeal joint. The objectives were to compare the biochemical composition of the navicular articular and palmar cartilages from 18 horses with navicular disease with 49 horses with no history of front limb lameness, and to compare navicular fibrocartilage with medial meniscus of the stifle and collateral cartilage of the hoof. Cartilage oligomeric matrix protein (COMP), deoxyribonucleic acid (DNA), total glycosaminoglycan (GAG), metalloproteinases MMP-2 and MMP-9 and water content in tissues were measured. Hyaline cartilage had the highest content of COMP and COMP content in hyaline cartilage and tendon was higher in lame horses than in sound horses (phyaline cartilage was higher in lame horses than in sound horses. The MMP-2 amounts were significantly higher in tendons compared to other tissue types. Overall, 79% of the lame horses with lesions had MMP-9 in their tendons and the amount was higher than in sound horses (phyaline and fibrocartilage as well as the DDFT with potential implications for the pathogenesis and management of the condition.

  12. Effect of exercise on thicknesses of mature hyaline cartilage, calcified cartilage, and subchondral bone of equine tarsi.

    Science.gov (United States)

    Tranquille, Carolyne A; Blunden, Antony S; Dyson, Sue J; Parkin, Tim D H; Goodship, Allen E; Murray, Rachel C

    2009-12-01

    OBJECTIVE-To investigate effects of exercise on hyaline cartilage (HC), calcified cartilage (CC), and subchondral bone (SCB) thickness patterns of equine tarsi. SAMPLE POPULATION-30 tarsi from cadavers of horses with known exercise history. PROCEDURES-Tarsi were assigned to 3 groups according to known exercise history as follows: pasture exercise only (PE tarsi), low-intensity general-purpose riding exercise (LE tarsi), and high-intensity elite competition riding exercise (EE tarsi). Osteochondral tissue from distal tarsal joints underwent histologic preparation. Hyaline cartilage, CC, and SCB thickness were measured at standard sites at medial, midline, and lateral locations across joints with a histomorphometric technique. RESULTS-HC, CC, and SCB thickness were significantly greater at all sites in EE tarsi, compared with PE tarsi; this was also true when LE tarsi were compared with PE tarsi. At specific sites, HC, CC, and SCB were significantly thicker in EE tarsi, compared with LE tarsi. Along the articular surface of the proximal aspect of the third metatarsal bone, SCB was thickest in EE tarsi and thinnest in LE tarsi; increases were greatest at sites previously reported to undergo peak strains and osteochondral damage. CONCLUSIONS AND CLINICAL RELEVANCE-Increased exercise was associated with increased HC, CC, and SCB thickness in mature horses. At sites that undergo high compressive strains, with a reported predisposition to osteoarthritic change, there was increased CC and SCB thickness. These results may provide insight into the interaction between adaptive response to exercise and pathological change.

  13. Annulus Fibrosus Can Strip Hyaline Cartilage End Plate from Subchondral Bone: A Study of the Intervertebral Disk in Tension.

    Science.gov (United States)

    Balkovec, Christian; Adams, Michael A; Dolan, Patricia; McGill, Stuart M

    2015-10-01

    Study Design Biomechanical study on cadaveric spines. Objective Spinal bending causes the annulus to pull vertically (axially) on the end plate, but failure mechanisms in response to this type of loading are poorly understood. Therefore, the objective of this study was to identify the weak point of the intervertebral disk in tension. Methods Cadaveric motion segments (aged 79 to 88 years) were dissected to create midsagittal blocks of tissue, with ∼10 mm of bone superior and inferior to the disk. From these blocks, 14 bone-disk-bone slices (average 4.8 mm thick) were cut in the frontal plane. Each slice was gripped by its bony ends and stretched to failure at 1 mm/s. Mode of failure was recorded using a digital camera. Results Of the 14 slices, 10 failed by the hyaline cartilage being peeled off the subchondral bone, with the failure starting opposite the lateral annulus and proceeding medially. Two slices failed by rupturing of the trabecular bone, and a further two failed in the annulus. Conclusions The hyaline cartilage-bone junction is the disk's weak link in tension. These findings provide a plausible mechanism for the appearance of bone and cartilage fragments in herniated material. Stripping cartilage from the bony end plate would result in the herniated mass containing relatively stiff cartilage that does not easily resorb.

  14. Regeneration of hyaline cartilage promoted by xenogeneic mesenchymal stromal cells embedded within elastin-like recombinamer-based bioactive hydrogels.

    Science.gov (United States)

    Pescador, David; Ibáñez-Fonseca, Arturo; Sánchez-Guijo, Fermín; Briñón, Jesús G; Arias, Francisco Javier; Muntión, Sandra; Hernández, Cristina; Girotti, Alessandra; Alonso, Matilde; Del Cañizo, María Consuelo; Rodríguez-Cabello, José Carlos; Blanco, Juan Francisco

    2017-08-01

    Over the last decades, novel therapeutic tools for osteochondral regeneration have arisen from the combination of mesenchymal stromal cells (MSCs) and highly specialized smart biomaterials, such as hydrogel-forming elastin-like recombinamers (ELRs), which could serve as cell-carriers. Herein, we evaluate the delivery of xenogeneic human MSCs (hMSCs) within an injectable ELR-based hydrogel carrier for osteochondral regeneration in rabbits. First, a critical-size osteochondral defect was created in the femora of the animals and subsequently filled with the ELR-based hydrogel alone or with embedded hMSCs. Regeneration outcomes were evaluated after three months by gross assessment, magnetic resonance imaging and computed tomography, showing complete filling of the defect and the de novo formation of hyaline-like cartilage and subchondral bone in the hMSC-treated knees. Furthermore, histological sectioning and staining of every sample confirmed regeneration of the full cartilage thickness and early subchondral bone repair, which was more similar to the native cartilage in the case of the cell-loaded ELR-based hydrogel. Overall histological differences between the two groups were assessed semi-quantitatively using the Wakitani scale and found to be statistically significant (p hyaline cartilage in osteochondral lesions.

  15. Positive effects of cell-free porous PLGA implants and early loading exercise on hyaline cartilage regeneration in rabbits.

    Science.gov (United States)

    Chang, Nai-Jen; Lin, Chih-Chan; Shie, Ming-You; Yeh, Ming-Long; Li, Chien-Feng; Liang, Peir-In; Lee, Kuan-Wei; Shen, Pei-Hsun; Chu, Chih-Jou

    2015-12-01

    The regeneration of hyaline cartilage remains clinically challenging. Here, we evaluated the therapeutic effects of using cell-free porous poly(lactic-co-glycolic acid) (PLGA) graft implants (PGIs) along with early loading exercise to repair a full-thickness osteochondral defect. Rabbits were randomly allocated to a treadmill exercise (TRE) group or a sedentary (SED) group and were prepared as either a PGI model or an empty defect (ED) model. TRE was performed as a short-term loading exercise; SED was physical inactivity in a free cage. The knees were evaluated at 6 and 12 weeks after surgery. At the end of testing, none of the knees developed synovitis, formed osteophytes, or became infected. Macroscopically, the PGI-TRE group regenerated a smooth articular surface, with transparent new hyaline-like tissue soundly integrated with the neighboring cartilage, but the other groups remained distinct at the margins with fibrous or opaque tissues. In a micro-CT analysis, the synthesized bone volume/tissue volume (BV/TV) was significantly higher in the PGI-TRE group, which also had integrating architecture in the regeneration site. The thickness of the trabecular (subchondral) bone was improved in all groups from 6 to 12 weeks. Histologically, remarkable differences in the cartilage regeneration were visible. At week 6, compared with SED groups, the TRE groups manifested modest inflammatory cells with pro-inflammatory cytokines (i.e., TNF-α and IL-6), improved collagen alignment and higher glycosaminoglycan (GAG) content, particularly in the PGI-TRE group. At week 12, the PGI-TRE group had the best regeneration outcomes, showing the formation of hyaline-like cartilage, the development of columnar rounded chondrocytes that expressed enriched levels of collagen type II and GAG, and functionalized trabecular bone with osteocytes. In summary, the combination of implanting cell-free PLGA and performing an early loading exercise can significantly promote the full

  16. Granuloma en la incisión tras el implante de un estimulador eléctrico medular Granuloma in the incisin after implants of an spinal cord device

    OpenAIRE

    P. Diéguez; V. Villanueva; S. López; J. De Andrés

    2008-01-01

    Presentamos el caso de un paciente que sufrió como complicación de la estimulación eléctrica medular, implantado a causa de su dolor neuropático, un granuloma en la incisión lumbar, a nivel de la conexión intermedia. Este granuloma evolucionó pese a su correcto diagnóstico y tratamiento precoz, a una infección de tejidos profundos con migración de los electrodos, por lo que precisó la retirada de éstos.It is showed you a patient who presented a granuloma in the lumbar incision at the level of...

  17. Eosinophilic granuloma of spine in adults: a report of 30 cases and outcome.

    Science.gov (United States)

    Huang, Wending; Yang, Xinghai; Cao, Dong; Xiao, Jianru; Yang, Mosong; Feng, Dapeng; Huang, Quan; Wu, Zhipeng; Zheng, Wei; Jia, Lianshun; Wu, Shujia

    2010-07-01

    Eosinophilic granuloma (EG) of the spine is rare, especially in adults. There had been few large and long-term studies reported in the literature. The management goals of this disease in adults are preservation of neurologic function, relief of pain and reconstruction of spinal stability. However, there are still controversies over appropriate management modality of eosinophilic granuloma. Clinical manifestations, radiographic presentations, therapeutic outcomes and follow-up findings of 30 adults who were histiologically diagnosed with spinal eosinophilic granuloma, including 28 patients who received surgical treatment at our institutions from 1985 to 2008 were reviewed retrospectively. There were 25 males and five females with a mean age of 34.5 years (range, 18-71 years). The post-operative follow-up period ranged from 2 to 22.4 years (mean, 8.3 years). Neurologic deficits developed in 21 patients, apparent kyphosis developed in four cases. In contrast to the classic feature of vertebra plana in children, we found that more severe lesions often led to asymmetric collapse in adult patients and only three patients presented with vertebra plana. Thirty-three vertebral lesions distributed throughout the spine column. Twenty-one lesions were in cervical spine, seven in the thoracic spine and five in the lumbar spine. Twenty-eight adult patients underwent surgical resection with or without chemotherapy or radiotherapy, and four (13.3%) patients had recurrence after surgery. No patient in our series died. The onset of spinal EG is insidious and mainly presents as osteolytic destruction. There is a particular high prevalence of lesions in the cervical spine and more severe lesions often led to asymmetric collapse. As the skeleton of adults is well-developed and the epiphysis has stopped growing, individualized management including surgical intervention should be considered in adult patients with spinal EG who present with neurological damage and spinal instability.

  18. Expression of interleukin-33 and its receptor ST2 in periapical granulomas and radicular cysts.

    Science.gov (United States)

    Velickovic, Milena; Pejnovic, Nada; Petrovic, Renata; Mitrovic, Slobodanka; Jeftic, Ilija; Kanjevac, Tatjana; Lukic, Aleksandra

    2016-01-01

    Interleukin-33 (IL-33) is a recently identified cytokine belonging to the IL-1 family and ligand for the IL-1 receptor-related protein ST2. IL-33/ST2 signaling plays a critical role in allergy, autoimmunity, and chronic inflammatory disorders, but its role in the pathogenesis of periapical lesions is unknown. We aimed to investigate the expression patterns of IL-33 and ST2 in human periapical lesions. Periapical lesions (n = 36) and healthy periapical tissues (n = 10) were evaluated by immunohistochemistry using antibodies specific for human IL-33 and ST2. Lesion samples were further analyzed by double immunofluorescence to assess IL-33/ST2 co-expression. The numbers of IL-33- and ST2-positive fibroblasts were significantly higher in periapical lesions compared to healthy periapical tissues (both P 0.05). There were no significant differences in the numbers of IL-33- and ST2-positive fibroblasts and endothelial cells between periapical granulomas and radicular cysts (all P > 0.05). Similarly, numbers of ST2-positive mononuclear cells did not differ between periapical granulomas and radicular cysts (P > 0.05). The majority of epithelial cells in radicular cysts were IL-33 positive, while the small proportion of epithelial cells was ST2 positive. Double immunofluorescence analysis revealed IL-33/ST2 co-expression in fibroblasts and endothelial cells. IL-33 and ST2 are expressed in periapical granulomas and radicular cysts. Increased numbers of IL-33- and ST2-positive fibroblasts in periapical lesions when compared to healthy periapical tissues suggest that IL-33/ST2 signaling may be involved in periapical inflammation and tissue fibrosis. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  19. Retrograde pulmonary arteriography

    International Nuclear Information System (INIS)

    Calcaterra, G.; Lam, J.; Losekoot, T.G.

    1984-01-01

    The authors performed retrograde pulmonary arteriography by means of a pulmonary venous wedge injection in 10 patients with no demonstrable intrapericardial pulmonary arteries by 'conventional' angiographic techniques. In all cases but one, the procedure demonstrated the feasibility of a further operation. No complications were observed. Retrograde pulmonary arteriography is an important additional method for determining the existence of surgically accessible pulmonary arteries when other techniques have failed. (Auth.)

  20. Multiple Synchronous Central Giant Cell Granulomas of the Maxillofacial Region: A Case Report

    International Nuclear Information System (INIS)

    Kang, Min Seok; Kim, Hak Jin

    2010-01-01

    Multifocal central giant cell granulomas (CGCG) in the maxillofacial region are suggestive of systemic disease such as hyperparathyroidism or an inherited syndrome such as Noonan-like multiple giant cell lesion syndrome. Only 5 cases of multifocal CGCGs in the maxillofacial region without any concomitant systemic disease have currently been reported. We report here on an unusual case of 17-year-old man who presented with multifocal CGCGs of the bilateral posterior mandible and right maxilla and he was without any concomitant systemic disease

  1. Desmoplastic melanoma presenting as pyogenic granuloma: Report of a case with review of literature

    Directory of Open Access Journals (Sweden)

    Ratnam B

    2010-01-01

    Full Text Available An elderly female patient was referred to the author for the treatment of a large recurrent pyogenic granuloma in the sole of right foot for a period of 2 years. She underwent excisional surgeries at an outside facility twice in the past. This time, she was treated with wide excision biopsy and the surgical defect was closed with a new technique, the "adjustable suture technique". Histopathology report confirmed "desmoplastic melanoma" with complete marginal clearance. The wound had healed uneventfully. There were no recurrences at 4-year follow-up.

  2. Multiple Synchronous Central Giant Cell Granulomas of the Maxillofacial Region: A Case Report

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Min Seok; Kim, Hak Jin [Pusan National University Hospital, Busan (Korea, Republic of)

    2010-01-15

    Multifocal central giant cell granulomas (CGCG) in the maxillofacial region are suggestive of systemic disease such as hyperparathyroidism or an inherited syndrome such as Noonan-like multiple giant cell lesion syndrome. Only 5 cases of multifocal CGCGs in the maxillofacial region without any concomitant systemic disease have currently been reported. We report here on an unusual case of 17-year-old man who presented with multifocal CGCGs of the bilateral posterior mandible and right maxilla and he was without any concomitant systemic disease

  3. Differentiation of periapical granulomas and cysts by using dental MRI: a pilot study.

    Science.gov (United States)

    Juerchott, Alexander; Pfefferle, Thorsten; Flechtenmacher, Christa; Mente, Johannes; Bendszus, Martin; Heiland, Sabine; Hilgenfeld, Tim

    2018-05-17

    The purpose of this pilot study was to evaluate whether periapical granulomas can be differentiated from periapical cysts in vivo by using dental magnetic resonance imaging (MRI). Prior to apicoectomy, 11 patients with radiographically confirmed periapical lesions underwent dental MRI, including fat-saturated T2-weighted (T2wFS) images, non-contrast-enhanced T1-weighted images with and without fat saturation (T1w/T1wFS), and contrast-enhanced fat-saturated T1-weighted (T1wFS+C) images. Two independent observers performed structured image analysis of MRI datasets twice. A total of 15 diagnostic MRI criteria were evaluated, and histopathological results (6 granulomas and 5 cysts) were compared with MRI characteristics. Statistical analysis was performed using intraclass correlation coefficient (ICC), Cohen's kappa (κ), Mann-Whitney U-test and Fisher's exact test. Lesion identification and consecutive structured image analysis was possible on T2wFS and T1wFS+C MRI images. A high reproducibility was shown for MRI measurements of the maximum lesion diameter (intraobserver ICC = 0.996/0.998; interobserver ICC = 0.997), for the "peripheral rim" thickness (intraobserver ICC = 0.988/0.984; interobserver ICC = 0.970), and for all non-quantitative MRI criteria (intraobserver-κ = 0.990/0.995; interobserver-κ = 0.988). In accordance with histopathological results, six MRI criteria allowed for a clear differentiation between cysts and granulomas: (1) outer margin of lesion, (2) texture of "peripheral rim" in T1wFS+C, (3) texture of "lesion center" in T2wFS, (4) surrounding tissue involvement in T2wFS, (5) surrounding tissue involvement in T1wFS+C and (6) maximum "peripheral rim" thickness (all: P periapical cysts and granulomas in vivo. Thus, MRI may substantially improve treatment strategies and help to avoid unnecessary surgery in apical periodontitis.

  4. Eosinophilic granuloma of the skull base: patient with unique clinical moreover, radiographic presentation.

    Directory of Open Access Journals (Sweden)

    Hosein Dalili

    2015-01-01

    Full Text Available This case report presents an eight-year-old girl having periauricular swelling and severe pain during mouth opening on the right-side temporomandibular joint (TMJ. CBCT showed extensive destruction of the base of the skull and the roof of the glenoid fossa on the right side. The findings based on CT and MRI images with and without contrast are discussed herein. This report highlights a skull base eosinophilic granuloma that mimics TMJ disorder and the importance of proper evaluation of CBCT images to make an early diagnosis.

  5. Osseous eosinophilic granuloma in children; Le granulome eosinophile des os chez l'enfant

    Energy Technology Data Exchange (ETDEWEB)

    Leblan, I.; Gaucher, H.; Marinard, L.; Galloy, M.A.; Phi, I.N.; Hoeffel, J.C. [Hopital de Brabois-Vandoeuvre, 54 - Nancy (France). Service de radiologie

    2001-02-01

    Eosinophilic granuloma of bone or Langerhans cell histiocytosis is mostly uni-focal. It appears on plain X Ray as a solitary destructive lesion of long bones or flat bones. CT is useful to define the extension to the cortical bone and also to precisely localize the lesion when the anatomy is complex (hip, spine, base of the skull). MR is very useful in case of more aggressive lesions when there is extension to soft tissues. Differential diagnosis includes circumscribed osteitis and tumors prognosis is more serious in case of multiple lesions. (authors)

  6. Pathology of high altitude pulmonary oedema

    International Nuclear Information System (INIS)

    Saleem, N.

    2014-01-01

    Objective: To describe autopsy findings in fatal cases of high altitude pulmonary oedema. Study Design: Descriptive study. Place and Duration of Study: The study was carried out between 1999 and 2002 at an army field medical unit in Baltistan, Armed Forces Institute of Pathology, Rawalpindi and Army Medical College, Rawalpindi, Pakistan. Patients and Methods:Autopsies were performed in 17 fatal cases of High Altitude Pulmonary Edema (HAPE) occurring among soldiers serving in Siachen. Results:All cases were males with a mean age of 26.8 years (19-35). The mean altitude at which HAPE occurred was 5192 meters (2895-6492), and the mean duration of stay at these altitudes was 15.3 days (1-30). Eleven individuals had undergone proper acclimatization. The commonest clinical findings were cough (70%), dyspnoea (53%), nausea (47%), headache (41%), vomiting (35%), chest pain (35%) and tightness in chest (24%). Cyanosis and frothy secretions in the nostrils and mouth were present in all but one case. Mean combined weight of lungs was 1470 grams (1070-1810). There was marked congestion of outer and cut surfaces. Interstitial oedema was present in all cases. RBCs and leukocyte infiltrates were seen in 13 and alveolar hyaline membranes in 9 cases. Thrombi were seen in 2 cases. Cerebral oedema was present in 9 cases. Conclusion:HAPE can occur after more than two weeks of stay at high altitudes despite proper acclimatization. Concomitant cerebral oedema is frequently present. Our autopsy findings are consistent with what has been reported previously. (author)

  7. TOTAL EYELID RECONSTRUCTION IN A PRIMARY IMMUN O DEFICIENT WI TH G I A NT PYOGENIC GRANULOMA

    Directory of Open Access Journals (Sweden)

    Vijay Kumar

    2015-06-01

    Full Text Available Total upper and lower eyelid defect is usually secondary to the excision of malignant or benign tumours, trauma and burns. Reconstruction of this type of defect is important not only for the cosmetic result, but also for coverage of the cornea an d prevent injury to eyeball. Pyogenic granuloma is usually preceded by the history of trauma to the eyelid. But reports of giant pyogenic granuloma of both upper and lower eyelid are rare. We present here a ten year old boy diagnosed primary immune deficient with a large fungating mass over both upper and lower eyelid, which was excised and total upper and lower eyelid defect was reconstructed with paramedian forehead flap. Histopathology revealed pyogenic granuloma. Post operatively c hild had good lid movements.

  8. Endodontic misdiagnosis of periapical central giant cell granuloma: Report of case with 2 years of follow-up

    Directory of Open Access Journals (Sweden)

    Rahul Kumar

    2012-01-01

    Full Text Available Central giant cell granuloma is considered as reactive lesion of jaws possibly to intramedullary hemorrhage or trauma. It may manifest as radiolucencies anywhere in the mandible or maxilla. In rare cases, it can appear as a localized periapical area and mimic an endodontic lesion. This report presents a case where central giant cell granuloma was misdiagnosed as a periapical cyst in 20-year-old male and was treated by conventional endodontic treatment. However the lesion was refractory to endodontic treatment and proved to be central giant cell granuloma after surgical intervention and histopathological examination. The purpose of this case report is to emphasize on periodic follow-up of periapical lesions after endodontic treatment and surgical intervention if required.

  9. The development of hyaline-cell cartilage in the head of the black molly, Poecilia sphenops. Evidence for secondary cartilage in a teleost.

    Science.gov (United States)

    Benjamin, M

    1989-01-01

    The development of hyaline-cell cartilage attached to membrane (dentary, maxilla, nasal, lacrimal and cleithrum) and cartilage (basioccipital) bones has been studied in the viviparous black molly, Poecilia sphenops. Intramembranous ossification commences before the first appearance of hyaline cells. As hyaline-cell cartilage is densely cellular and as that attached to the dentary, maxilla and cleithrum develops from the periosteum of these membrane bones, it must be regarded as secondary cartilage according to current concepts. It is also argued that the hyaline-cell cartilage attached to the perichondral bone of the basioccipital (a cartilage bone), could also be viewed as secondary. The status of the cartilage on the nasal and lacrimal bones is less clear, for it develops, at least in part, from mucochondroid (mucous connective) tissue. This is the first definitive report of secondary cartilage in any lower vertebrate. The tissue is therefore not restricted to birds and mammals as hitherto believed, and a multipotential periosteum must have arisen early in vertebrate evolution. Images Fig. 1 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 10 Fig. 11 Fig. 12 Fig. 13 Fig. 14 PMID:2481666

  10. Reappraisal of mesenchymal chondrosarcoma: novel morphologic observations of the hyaline cartilage and endochondral ossification and beta-catenin, Sox9, and osteocalcin immunostaining of 22 cases.

    Science.gov (United States)

    Fanburg-Smith, Julie C; Auerbach, Aaron; Marwaha, Jayson S; Wang, Zengfeng; Rushing, Elisabeth J

    2010-05-01

    Mesenchymal chondrosarcoma, a rare malignant round cell and hyaline cartilage tumor, is most commonly intraosseous but can occur in extraskeletal sites. We intensively observed the morphology and applied Sox9 (master regulator of chondrogenesis), beta-catenin (involved in bone formation, thought to inhibit chondrogenesis in a Sox9-dependent manner), and osteocalcin (a marker for osteoblastic phenotype) to 22 central nervous system and musculoskeletal mesenchymal chondrosarcoma. Cases of mesenchymal chondrosarcoma were retrieved and reviewed from our files. Immunohistochemistry and follow-up were obtained on mesenchymal chondrosarcoma and tumor controls. Twenty-two mesenchymal chondrosarcomas included 5 central nervous system (all female; mean age, 30.2; mean size, 7.8 cm; in frontal lobe [n = 4] and spinal cord [n = 1]) and 17 musculoskeletal (female-male ratio, 11:6; mean age, 31.1; mean size, 6.2 cm; 3 each of humerus and vertebrae; 2 each of pelvis, rib, tibia, neck soft tissue; one each of femur, unspecified bone, and elbow soft tissue). The hyaline cartilage in most tumors revealed a consistent linear progression of chondrocyte morphology, from resting to proliferating to hypertrophic chondrocytes. Sixty-seven percent of cases demonstrated cell death and acquired osteoblastic phenotype, cells positive for osteocalcin at the site of endochondral ossification. Small round cells of mesenchymal chondrosarcoma were negative for osteocalcin. SOX9 was positive in both components of 21 of 22 cases of mesenchymal chondrosarcoma. beta-Catenin highlighted rare nuclei at the interface between round cells and hyaline cartilage in 35% cases. Control skull and central nervous system cases were compared, including chondrosarcomas and small cell osteosarcoma, the latter positive for osteocalcin in small cells. Mesenchymal chondrosarcoma demonstrates centrally located hyaline cartilage with a linear progression of chondrocytes from resting to proliferative to hypertrophic

  11. Vulvar Pyogenic Granuloma in a Postmenopausal Woman: Case Report and Review of the Literature

    Directory of Open Access Journals (Sweden)

    Deniz Cemgil Arikan

    2011-01-01

    Full Text Available Introduction. Although pyogenic granulomas (PG are common and benign vascular proliferations of the skin and mucous membranes, they are relatively rare on the vulva. Case Presentation. A 57-year-old G7P7 postmenopausal woman presented with a 3-year history of a foul smell and bleeding lesions in the genital region. A gynecologic examination revealed multiple large papillomatous, pedunculated, and lobulated lesions that were cherry-red and infective in appearance. There was a 2-cm lesion at the upper intersection of the labia majora, a 2-cm lesion on the right labium majus, and a 4-cm lesion on the clitoris. The patient complained of itching, and the lesions were asymptomatic, except for occasional bleeding. All lesions were excised and sent for histopathological examination, which revealed an ulcerated polypoidal structure with extensive proliferation of vascular channels lined by a single layer of endothelium. The histopathological features were consistent with PG. Conclusion. The present case is the first case of multiple pyogenic granulomas on the vulva in a postmenopausal woman.

  12. Vulvar Pyogenic Granuloma in a Postmenopausal Woman: Case Report and Review of the Literature

    Science.gov (United States)

    Arikan, Deniz Cemgil; Kiran, Gurkan; Sayar, Hamide; Kostu, Bulent; Coskun, Ayhan; Kiran, Hakan

    2011-01-01

    Introduction. Although pyogenic granulomas (PG) are common and benign vascular proliferations of the skin and mucous membranes, they are relatively rare on the vulva. Case Presentation. A 57-year-old G7P7 postmenopausal woman presented with a 3-year history of a foul smell and bleeding lesions in the genital region. A gynecologic examination revealed multiple large papillomatous, pedunculated, and lobulated lesions that were cherry-red and infective in appearance. There was a 2-cm lesion at the upper intersection of the labia majora, a 2-cm lesion on the right labium majus, and a 4-cm lesion on the clitoris. The patient complained of itching, and the lesions were asymptomatic, except for occasional bleeding. All lesions were excised and sent for histopathological examination, which revealed an ulcerated polypoidal structure with extensive proliferation of vascular channels lined by a single layer of endothelium. The histopathological features were consistent with PG. Conclusion. The present case is the first case of multiple pyogenic granulomas on the vulva in a postmenopausal woman. PMID:21912553

  13. Case clusters of leproid granulomas in foxhounds in New Zealand and Australia.

    Science.gov (United States)

    Smits, Bronwyn; Willis, Richard; Malik, Richard; Studdert, Virginia; Collins, Desmond M; Kawakami, Pamela; Graham, Duncan; Fyfe, Janet A

    2012-12-01

    Canine leproid granuloma (CLG) characteristically presents as single to multiple circumscribed dermal to subcutaneous nodules in haired skin. An unidentified mycobacterium is considered be the aetiological agent of this entity. Several cases of canine leproid granulomas occurred in dogs in New Zealand during 2010 and 2011. Cases appeared in clusters, affecting multiple closely related foxhounds domiciled in the same kennels. All affected hounds recovered after topical and/or systemic antimicrobial therapy. Two similar outbreaks that occurred in foxhounds near Melbourne, Australia are also reported. Cases were investigated using cytological, histological, microbiological and several molecular techniques. An environmental epidemiological study was also performed. A diagnosis of CLG was established in 11 dogs. Molecular identification of the causative agent confirmed that it was a mycobacterial species with 100% sequence homology within the amplified regions of the 16S rRNA gene and internal transcribed spacer (ITS1) with that found in association with similar infections from the USA, Brazil and Australia. This report details the first occurrence of multiple cases of CLG occurring in in-contact dogs and the first proven case of CLG in dogs in New Zealand. © 2012 The Authors. Veterinary Dermatology © 2012 ESVD and ACVD.

  14. Granuloma macular por tuberculose sem manifestação pulmonar

    Directory of Open Access Journals (Sweden)

    Albert Costa Rebello

    2015-08-01

    Full Text Available RESUMO Tuberculose é uma doença infecciosa causada pelo Mycobacterium tuberculosis, também conhecido como bacilo de Koch. O principal sítio de acometimento é o pulmonar, porém o bacilo pode disseminar-se por via linfo-hematogênica para outros órgãos, dentre eles o olho. A incidência de tuberculose ocular é de 1 a 2% dos casos extrapulmonares. Os autores apresentam um caso clínico de um paciente do sexo feminino de 28 anos que procura atendimento médico devido à redução da acuidade visual em olho esquerdo há 7 dias. Apresentava a melhor acuidade visual corrigida no olho acometido de 20/200 e no olho contralateral de 20/20. Na fundoscopia era evidenciado um granuloma em área macular do olho esquerdo, com edema e hemorragia intrarretiniana adjacente. Após investigação diagnóstica, a paciente foi tratada com esquema antibiótico para tuberculose durante 6 meses, obtendo regressão do granuloma e melhora da acuidade visual deste olho para 20/50.

  15. Lineage plasticity and cell biology of fibrocartilage and hyaline cartilage: Its significance in cartilage repair and replacement

    International Nuclear Information System (INIS)

    Freemont, Anthony J.; Hoyland, Judith

    2006-01-01

    Cartilage repair is a major goal of modern tissue engineering. To produce novel engineered implants requires a knowledge of the basic biology of the tissues that are to be replaced or reproduced. Hyaline articular cartilage and meniscal fibrocartilage are two tissues that have excited attention because of the frequency with which they are damaged. A basic strategy is to re-engineer these tissues ex vivo by stimulating stem cells to differentiate into the cells of the mature tissue capable of producing an intact functional matrix. In this brief review, the sources of cells for tissue engineering cartilage and the culture conditions that have promoted differentiation are discussed within the context of natural cartilage repair. In particular, the role of cell density, cytokines, load, matrices and oxygen tension are discussed

  16. Intratubular large cell hyalinizing Sertoli cell tumor of the testis presenting with prepubertal gynecomastia: a case report.

    Science.gov (United States)

    Tuhan, Hale; Abaci, Ayhan; Sarsık, Banu; Öztürk, Tülay; Olguner, Mustafa; Catli, Gonul; Anik, Ahmet; Olgun, Nur; Bober, Ece

    2017-08-01

    Intratubular large cell hyalinizing Sertoli cell neoplasia (ITLCHSCN) resulting from Sertoli cells of the testis are mainly reported in young adults and these are rarely seen in childhood. The most common presenting symptoms of the patients diagnosed with ITLCHSCN are gynecomastia, enlargement in the testicles, increase in growth velocity, and advanced bone age. Symptoms are basically resulting from increased aromatase enzyme activity in Sertoli cells. In this case report, an eight-and-a-half-year-old case presenting with complaint of bilateral gynecomastia since two years, showing no endocrine abnormality in laboratory during two years of follow-up, determined to have progression in bilateral gynecomastia, increase in testicular volumes, advanced bone age, increase in growth velocity in the clinical follow-up, and diagnosed with ITLCHSCN after testis biopsy was presented.

  17. Lineage plasticity and cell biology of fibrocartilage and hyaline cartilage: Its significance in cartilage repair and replacement

    Energy Technology Data Exchange (ETDEWEB)

    Freemont, Anthony J. [Regenerative Medicine Research Group, University of Manchester, England (United Kingdom)]. E-mail: Tony.freemont@man.ac.uk; Hoyland, Judith [Regenerative Medicine Research Group, University of Manchester, England (United Kingdom)

    2006-01-15

    Cartilage repair is a major goal of modern tissue engineering. To produce novel engineered implants requires a knowledge of the basic biology of the tissues that are to be replaced or reproduced. Hyaline articular cartilage and meniscal fibrocartilage are two tissues that have excited attention because of the frequency with which they are damaged. A basic strategy is to re-engineer these tissues ex vivo by stimulating stem cells to differentiate into the cells of the mature tissue capable of producing an intact functional matrix. In this brief review, the sources of cells for tissue engineering cartilage and the culture conditions that have promoted differentiation are discussed within the context of natural cartilage repair. In particular, the role of cell density, cytokines, load, matrices and oxygen tension are discussed.

  18. Use of Interim Scaffolding and Neotissue Development to Produce a Scaffold-Free Living Hyaline Cartilage Graft.

    Science.gov (United States)

    Lau, Ting Ting; Leong, Wenyan; Peck, Yvonne; Su, Kai; Wang, Dong-An

    2015-01-01

    The fabrication of three-dimensional (3D) constructs relies heavily on the use of biomaterial-based scaffolds. These are required as mechanical supports as well as to translate two-dimensional cultures to 3D cultures for clinical applications. Regardless of the choice of scaffold, timely degradation of scaffolds is difficult to achieve and undegraded scaffold material can lead to interference in further tissue development or morphogenesis. In cartilage tissue engineering, hydrogel is the highly preferred scaffold material as it shares many similar characteristics with native cartilaginous matrix. Hence, we employed gelatin microspheres as porogens to create a microcavitary alginate hydrogel as an interim scaffold to facilitate initial chondrocyte 3D culture and to establish a final scaffold-free living hyaline cartilaginous graft (LhCG) for cartilage tissue engineering.

  19. The effect of high-energy extracorporeal shock waves on hyaline cartilage of adult rats in vivo.

    Science.gov (United States)

    Mayer-Wagner, Susanne; Ernst, Judith; Maier, Markus; Chiquet, Matthias; Joos, Helga; Müller, Peter E; Jansson, Volkmar; Sievers, Birte; Hausdorf, Jörg

    2010-08-01

    The aim of this study was to determine if extracorporeal shock wave therapy (ESWT) in vivo affects the structural integrity of articular cartilage. A single bout of ESWT (1500 shock waves of 0.5 mJ/mm(2)) was applied to femoral heads of 18 adult Sprague-Dawley rats. Two sham-treated animals served as controls. Cartilage of each femoral head was harvested at 1, 4, or 10 weeks after ESWT (n = 6 per treatment group) and scored on safranin-O-stained sections. Expression of tenascin-C and chitinase 3-like protein 1 (Chi3L1) was analyzed by immunohistochemistry. Quantitative real-time polymerase chain reaction (PCR) was used to examine collagen (II)alpha(1) (COL2A1) expression and chondrocyte morphology was investigated by transmission electron microscopy no changes in Mankin scores were observed after ESWT. Positive immunostaining for tenascin-C and Chi3L1 was found up to 10 weeks after ESWT in experimental but not in control cartilage. COL2A1 mRNA was increased in samples 1 and 4 weeks after ESWT. Alterations found on the ultrastructural level showed expansion of the rough-surfaced endoplasmatic reticulum, detachment of the cell membrane and necrotic chondrocytes. Extracorporeal shock waves caused alterations of hyaline cartilage on a molecular and ultrastructural level that were distinctly different from control. Similar changes were described before in the very early phase of osteoarthritis (OA). High-energy ESWT might therefore cause degenerative changes in hyaline cartilage as they are found in initial OA. Copyright 2010 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.

  20. Release of transgenic progranulin from a living hyaline cartilage graft model: An in vitro evaluation on anti-inflammation.

    Science.gov (United States)

    Lau, Ting Ting; Zhang, Feng; Tang, Wei; Wang, Dong-An

    2016-12-01

    Osteoarthritis (OA) is a prevalent condition that compromises and even jeopardizes the life quality of millions of people. Common symptoms in OA includes joint stiffness and soreness, and they are often associated with inflammations to various extend. Due to the avascular and aneural nature of articular hyaline cartilage, it has limited self-repair capabilities; especially under inflammatory conditions, damages inflicted on cartilage are often irreversible. Hence, treatment approaches focus on anti-inflammation or articular cartilage replacement. In this study, an engineered, dual-functional living hyaline cartilage graft (LhCG), capable of releasing transgenic anti-inflammatory cytokine-progranulin (PGRN) is developed and envisioned to simultaneously fulfil both requirements. The therapeutic functionality of PGRN releasing LhCG is evaluated by co-culturing the constructs with tumor necrosis factor-alpha (TNFα) secreting THP-1 cells to simulate the inflammatory condition in arthritis. Non-transgenic LhCG constructs and non-coculture sample groups were set up as controls. Gene expression and ECM composition changes across samples were assessed to understand the effects of PGRN as well as inflammatory environment on the cartilage graft. Collectively, the results in this study suggest that in situ release of transgenic recombinant PGRN protects LhCG from induced inflammation in vitro; contrastively, in the absence of PGRN, cartilage grafts are at risk of being degraded and mineralized under exposure to TNFα signaling. This shows that cartilage graft itself can be at risk of degradation or calcification when implanted in arthritic microenvironment. Hence, the inflammatory microenvironment has to be considered in cartilage replacement therapy to increase chances of successful joint mobility restoration. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 2968-2977, 2016. © 2016 Wiley Periodicals, Inc.

  1. Production of hyaline-like cartilage by bone marrow mesenchymal stem cells in a self-assembly model.

    Science.gov (United States)

    Elder, Steven H; Cooley, Avery J; Borazjani, Ali; Sowell, Brittany L; To, Harrison; Tran, Scott C

    2009-10-01

    A scaffoldless or self-assembly approach to cartilage tissue engineering has been used to produce hyaline cartilage from bone marrow-derived mesenchymal stem cells (bMSCs), but the mechanical properties of such engineered cartilage and the effects the transforming growth factor (TGF) isoform have not been fully explored. This study employs a cell culture insert model to produce tissue-engineered cartilage using bMSCs. Neonatal pig bMSCs were isolated by plastic adherence and expanded in monolayer before being seeded into porous transwell inserts and cultured for 4 or 8 weeks in defined chondrogenic media containing either TGF-beta1 or TGF-beta3. Following biomechanical evaluation in confined compression, colorimetric dimethyl methylene blue and Sircol dye-binding assays were used to analyze glycosaminoglycan (GAG) and collagen contents, respectively. Histological sections were stained with toluidine blue for proteoglycans and with picrosirius red to reveal collagen orientation, and immunostained for detection of collagen types I and II. Neocartilage increased in thickness, collagen, and GAG content between 4 and 8 weeks. Proteoglycan concentration increased with depth from the top surface. The tissue contained much more collagen type II than type I, and there was a consistent pattern of collagen alignment. TGF-beta1-treated and TGF-beta3-treated constructs were similar at 4 weeks, but 8-week TGF-beta1 constructs had a higher aggregate modulus and GAG content compared to TGF-beta3. These results demonstrate that bMSCs can generate functional hyaline-like cartilage through a self-assembling process.

  2. Deleted in Malignant Brain Tumors 1 (DMBT1) is present in hyaline membranes and modulates surface tension of surfactant

    DEFF Research Database (Denmark)

    Müller, Hanna; End, Caroline; Renner, Marcus

    2007-01-01

    BACKGROUND: Deleted in Malignant Brain Tumors 1 (DMBT1) is a secreted scavenger receptor cysteine-rich protein that binds various bacteria and is thought to participate in innate pulmonary host defense. We hypothesized that pulmonary DMBT1 could contribute to respiratory distress syndrome...

  3. Solitary pulmonary nodule

    Science.gov (United States)

    ... Adenocarcinoma - chest x-ray Pulmonary nodule - front view chest x-ray Pulmonary nodule, solitary - CT scan Respiratory system References Gotway MB, Panse PM, Gruden JF, Elicker BM. Thoracic radiology: noninvasive diagnostic imaging. In: Broaddus VC, Mason RJ, ...

  4. Hantavirus Pulmonary Syndrome (HPS)

    Science.gov (United States)

    ... to Yosemite FAQ: Non-U.S. Visitors to Yosemite History of HPS Related Links Prevent Rodent Infestations Cleaning Up After Rodents Diseases From Rodent Hantavirus Pulmonary Syndrome (HPS) Recommend on Facebook Tweet Share Compartir Hantavirus Pulmonary Syndrome (HPS) is ...

  5. In-Office Excision En Masse of a Vocal Process Granuloma Using the Potassium-Titanyl-Phosphate Laser.

    Science.gov (United States)

    Mascarella, Marco A; Young, Jonathan

    2016-01-01

    In-office laryngeal surgery is taking on a more commonplace role in the treatment of laryngeal disorders. The potassium-titanyl-phosphate (KTP) laser has been a resourceful adjunct to the management of patients with mucosal lesions of the vocal cords. However, a paucity of data exists for its use in postintubation granulomas treated in-office. A 43-year-old female presented with voice hoarseness and found to have a large obstructing postintubation granuloma which was treated by in-office KTP laser and en masse excision. We report the successful case of a patient receiving in-office treatment for a large vocal process granuloma using the KTP laser with en masse excision. The combined use of the KTP laser and forceps in-office can be valuable to the surgical management of vocal process granulomas, given their numerous recurrences. New avenues in office-based surgical management of laryngeal disorders can offer accessibility and decreased morbidity to patients. Copyright © 2016 The Voice Foundation. Published by Elsevier Inc. All rights reserved.

  6. Giant cell reparative granuloma of the base of the skull in a 4-month-old infant - CT findings

    International Nuclear Information System (INIS)

    Cohen, D.; Granda-Ricart, M.C.

    1993-01-01

    An unusual case of giant cell reparative granuloma of the base of the skull of a 4-month-old infant is described. Computerized tomography was useful in defining extent of the lesion and soft tissue abnormalities. Differential diagnosis with other giant cell lesions is discussed. (orig.)

  7. Multiscale computational modeling reveals a critical role for TNF-a receptor 1 dynamics in tuberculosis granuloma formation

    NARCIS (Netherlands)

    Fallahi-Sichani, M.; El-Kebir, M.; Marino, S.; Kirschner, D.; Linderman, J.J.

    2011-01-01

    Multiple immune factors control host responses to Mycobacterium tuberculosis infection, including the formation of granulomas, which are aggregates of immune cells whose function may reflect success or failure of the host to contain infection. One such factor is TNF-α. TNF-α has been experimentally

  8. Quantitave and qualitative interferences of pentoxifillyne on hepatic Schistosoma mansoni granulomas: effects on extracellular matrix and eosinophil population

    Directory of Open Access Journals (Sweden)

    Luis Felipe Reis

    2001-09-01

    Full Text Available Mast cells and eosinophils actively participate in tissue repair and are prominent components of Schistosoma mansoni granulomas. Since pentoxifillyne (PTX is an immunomodulatory and antifibrotic substance, we aimed to characterize, by morphological techniques, the effect of this drug on fibrosis developed inside murine hepatic schistosomal granulomatous reaction, beyond the quantification of eosinophil and mast cell populations. The drug (1 mg/100 g animal weight was administrated from 35 to 90 days post-infection, when the animals were killed. The intragranulomatous interstitial collagen network was analyzed by confocal laser scanning microscopy, the number of eosinophils and mast cells was quantified and the results were validated by t-student test. Treatment did not interfere on the granuloma evolution but caused a significant decrease in the total and involutive number of hepatic granulomas (p = 0.01 and 0.001, respectivelly, and in the intragranulomatous accumulation of eosinophils (p = 0.0001. Otherwise, the number of mast cells was not significantly altered (p = 0.9; however, it was positively correlated with the number of granulomatous structures (r = 0.955. In conclusion, PTX does not affect development and collagen deposition in S. mansoni murine granuloma, but decreases the intragranulomatous eosinophil accumulation possibly due to its immunomodulatory capability, interfering in cellular recruitment and/or differentiation.

  9. Systemic granuloma observed in Atlantic salmon Salmo salar raised to market size in a freshwater recirculation aquaculture system

    Science.gov (United States)

    Systemic granuloma was observed in sampled adult Atlantic salmon Salmo salar raised to harvest size in a freshwater recirculation aquaculture system. The prevalence of this condition was estimated at 10-20% of the population, with affected individuals grossly demonstrating pathology in varying degre...

  10. Pulmonary Arterial Hypertension

    Science.gov (United States)

    ... heart). This type of pulmonary hypertension was called “secondary pulmonary hypertension” but is now referred to as PH, because the cause is known to be from lung disease, heart disease, or chronic thromboemboli (blood clots). Pulmonary Arterial Hypertension (PAH) used to be ...

  11. Pulmonary manifestations of malaria

    International Nuclear Information System (INIS)

    Rauber, K.; Enkerlin, H.L.; Riemann, H.; Schoeppe, W.; Frankfurt Univ.

    1987-01-01

    We report on the two different types of pulmonary manifestations in acute plasmodium falciparum malaria. The more severe variant shows long standing interstitial pulmonary infiltrates, whereas in the more benign courses only short-term pulmonary edemas are visible. (orig.) [de

  12. [The expression and significance of receptor activator of nuclear factor kappaB ligand and osteoprotegerin in periapical cyst and periapical granuloma].

    Science.gov (United States)

    Zhang, Meihua; Yu, Yunzhi; Miao, Yu

    2012-08-01

    To investigate the expression of receptor activator of nuclear factor kappaB ligand (RANKL) and osteoprotegerin (OPG) in periapical cyst and periapical granuloma by comparison with the expression in the normal periodontal tissue as control, and to identify their functional mechanism in the bone destruction of periapical cyst and granuloma. 20 periapical cyst tissues (cyst group), 20 periapical granuloma tissues (granuloma group), and 20 normal periodontal tissues (control group) were collected respectively. Immunohistochemical technology was performed to detect the expression of RANKL and OPG in above three groups. In cyst group, granuloma group and control group, the expression of RANKL were 75.00 +/- 7.54, 68.40 +/- 6.74 and 29.40 +/- 2.46, respectively. The expression of OPG were 38.10 +/- 7.09, 47.65 +/- 13.85 and 58.60 +/- 5.88, respectively. The differences among the three groups were statistically significant (Pcysts group were negatively correlated (r=-0.56, P=0.01) and were not correlated with granuloma and control group (P>0.05). RANKL and OPG play roles in the bone absorption of periapical disease. In periapical disease, abnormal expression of RANKL and OPG are detected, RANKL significantly increase, OPG decrease, bone absorption accelerate and osteolytic lesion are observed. In periapical cyst, the bone absorption is more active compared with periapical granuloma.

  13. T-helper cell type 17/regulatory T-cell immunoregulatory balance in human radicular cysts and periapical granulomas.

    Science.gov (United States)

    Marçal, Juliana R B; Samuel, Renata O; Fernandes, Danielle; de Araujo, Marcelo S; Napimoga, Marcelo H; Pereira, Sanivia A L; Clemente-Napimoga, Juliana T; Alves, Polyanna M; Mattar, Rinaldo; Rodrigues, Virmondes; Rodrigues, Denise B R

    2010-06-01

    Cysts and granulomas are chronic periapical lesions mediated by a set of inflammatory mediators that develop to contain a periapical infection. This study analyzed the nature of the inflammatory infiltrate, presence of mast cells, and in situ expression of cytokines (interleukin [IL]-17 and transforming growth factor [TGF]-beta), chemokines (macrophage inflammatory protein [MIP]-1beta and monocyte chemotactic protein [MCP]-1), and nuclear transcription factor (FoxP3) in human periapical granulomas and cysts compared with a control group. Fifty-five lesions (25 periapical cysts, 25 periapical granulomas, and 5 controls) were analyzed. The type of inflammatory infiltrate was evaluated by hematoxylin-eosin staining, and the presence of mast cells was analyzed by toluidine blue staining. Indirect immunohistochemistry was used to evaluate the expression of cytokines, chemokines, and FoxP3. The inflammatory infiltrate mainly consisted of mononuclear cells. In cysts, mononuclear infiltrates were significantly more frequent than mixed (polymorphonuclear/mononuclear) infiltrates (P = .04). Mixed inflammatory infiltrates were significantly more frequent in patients with sinus tract (P = .0001). The number of mast cells was significantly higher in granulomas than in cystic lesions (P = .02). A significant difference in the expression of IL-17 (P = .001) and TGF-beta (P = .003) was observed between cysts and granulomas and the control group. Significantly higher IL-17 levels were also observed in cases of patients with sinus tract (P = .03). We observed that chronic periapical lesions might experience a reagudization process that is correlated with an increased leukocyte infiltration, with the predominance of neutrophils attracted by a chemokine milieu, as well as the increased presence of IL-17. Copyright 2010 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  14. Traumatic ulcerative granuloma with stromal eosinophilia of the palate showing an angiocentric/angiodestructive growth pattern

    Directory of Open Access Journals (Sweden)

    Bernardo Ferreira Brasileiro

    2012-01-01

    Full Text Available Traumatic ulcerative granuloma with stromal eosinophilia (TUGSE is a benign, self-limiting lesion of the oral mucosa with unknown pathogenesis. A 65-year-old male patient presented with an ulcerative palate lesion, which on microscopic examination exhibited an exuberant polymorphic lymphoid proliferation, numerous eosinophils, and extensive vascular destruction. The atypical lymphoid cells infiltrating the medium-sized vessels showed positivity for CD3, CD30, and granzyme B, implicating an activated cytotoxic T-cell phenotype. The lesion diagnosed as TUGSE achieved complete resolution within 3 months. This unusual presentation has expanded the spectrum of oral CD30+ T-cell atypical infiltrates and must be distinguished from lymphomas showing angiocentric/angiodestructive growth pattern.

  15. Pyogenic granuloma associated with periodontal abscess and bone loss - A rare case report

    Directory of Open Access Journals (Sweden)

    Bhrugesh J Panseriya

    2011-01-01

    Full Text Available A diverse group of the pathologic process can produce the enlargement of soft tissues in the oral cavity and often present a diagnostic challenge. This soft tissue enlargement may represent a variation of the normal anatomic structure, inflammatory reaction, cyst, neoplasm, and developmental anomalies. A group of reactive hyperplasias, which develop in response to chronic recurring tissue injury that stimulates an excessive tissue repair response. The pyogenic granuloma (PG is a reactive enlargement that is an inflammatory response to local irritation such as calculus, a fractured tooth, rough dental restoration, and foreign materials or hormonal (pregnancy tumor and rarely associated with bone loss. This paper presents a rare case of PG associated with periodontal abscess and bone loss in a 30-year-old male.

  16. Nonsyndromic Synchronous Multifocal Central Giant Cell Granulomas of the Maxillofacial Region: Report of a Case.

    Directory of Open Access Journals (Sweden)

    Anita Munde

    2015-04-01

    Full Text Available Central giant cell granuloma (CGCG is a benign proliferation of fibroblasts and multinucleated giant cells that almost exclusively occurs in the jaws. It commonly occurs in young adults showing a female predilection in the anterior mandible. Multifocal CGCGs in maxillofacial region are very rare and suggestive of systemic diseases such as hyperparathyroidism, an inherited syndrome such as Noonan-like multiple giant cell lesion syndrome or other disorders. Only 10 cases of multifocal CGCGs in the maxillofacial region without any concomitant systemic disease have been reported in the English literature. Here, we report an unusual case of 36 year-old female presented with non-syndromic synchronous, multifocal CGCGs in the left posterior mandible and left posterior maxilla without any concomitant systemic disease. Relevant literature is reviewed and the incidence, clinical features, radiological features, differential diagnosis and management of CGCGs are discussed.

  17. Treatment of disseminated granuloma annulare with oral vitamin E: 'primum nil nocere'.

    Science.gov (United States)

    Poppe, Heiko; Poppe, Lidia M; Goebeler, Matthias; Trautmann, Axel

    2013-01-01

    Disseminated granuloma annulare (DGA) is a benign and usually asymptomatic skin disease. However, many patients feel aesthetically disfigured and ask for treatment. Until today, no standard therapy is recommended. To evaluate the safety and efficacy of oral vitamin E treatment compared to the natural course of DGA. This single-centre observational cohort study included 38 consecutive patients with histologically confirmed DGA. 21 patients underwent treatment with oral vitamin E, whereas 17 patients preferred a wait-and-see approach. Complete healing (40%) and improvement (30%) were frequently seen under oral vitamin E therapy. However, DGA also spontaneously disappeared in 31% and improved in 25% of untreated control patients. Vitamin E therapy was very well tolerated. Oral vitamin E treatment is a safe and probably effective therapy for DGA. As the natural course of DGA leads to complete healing or significant improvement in many cases, 'primum nil nocere' should be the maxim.

  18. Medical management of a case of central giant cell granuloma masquerading as a periapical pathosis

    Directory of Open Access Journals (Sweden)

    Balaji Babu Bangi

    2015-01-01

    Full Text Available Lesions of non-endodontic origin may mimic periapical pathosis. Errors in one or more of the clinical reasoning steps of diagnosis of such lesions may ultimately lead to misdiagnosis and ensuing complications. Central giant cell granuloma (CGCG is one such lesion of non-endodontic origin which can present as periapical pathosis. Here, we present a case of CGCG in a 33-year-old female patient who visited our department with a complaint of growth from the extraction sockets of upper front teeth, which were extracted 1 month back after a misdiagnosis as periapical pathosis. Suspecting a non-endodontic lesion, radiographic examination and incisional biopsy were performed and a final diagnosis of CGCG was made. Biweekly intra-lesional steroids were given for 6 weeks and patient was followed up for 6 months.

  19. Clinical, microscopic, and molecular aspects of canine leproid granuloma in the United States.

    Science.gov (United States)

    Foley, J E; Borjesson, D; Gross, T L; Rand, C; Needham, M; Poland, A

    2002-03-01

    Leproid granulomas from seven dogs in the United States were evaluated. Gross characteristics included nodular and ulcerated dermal and subcutaneous lesions primarily on the caudal aspects of the pinnae and to a lesser extent on the muzzle, face, and forelimbs. In all except one dog, there was complete regression of the lesions within 6 months, either with no therapy or after surgical resection. Cytology or histopathology revealed pyogranulomatous inflammation with few to many acid-fast mycobacterial bacilli within macrophages. The organisms could not be cultivated in vitro. DNA sequencing of part of the 16S ribosomal RNA gene region revealed 99-100% homology among fragments from five of these dogs and fragments from dogs in the south Pacific. This syndrome occurs in dogs in North America and the prognosis is excellent, in contrast to the prognosis for rapid-growing or tuberculous mycobacteriosis.

  20. GIANT CELL GRANULOMAS OF THE JAWS (ANALYSIS OF 1,083 CASES

    Directory of Open Access Journals (Sweden)

    Ismail Yazdi

    1995-07-01

    Full Text Available Giant cell granulomas of the jaws are rather common in [rail, however, more reliable data need to be published In this retrospecti ve study 1,083 cases ojPGCO and CGCG (817 peripheral and 203 central were extracted from 6800 oral biopsy archives of the Oral Pathology Department and were analyzed: Age and sex ofthe patients and type and location distribution were obtained Our results show that most cases ofPGCG and CGCG occurred before"nthe fifth and during fourth decade, respectively. Slight predominance offemales was notedfor both types. Mandible wa~ often more affected (60.3%, especially in the premolarmolar region. The results obtained in this study were in agreement with other independent reports.

  1. Dermatitis artefacta: Keloids and foreign body granuloma due to overvalued ideation of acupuncture

    Directory of Open Access Journals (Sweden)

    Choudhary Sanjiv

    2009-01-01

    Full Text Available Skin is well recognized as an important somatic mirror of one′s emotion and a site for the discharge of one′s anxieties. We present a case of a 42-year-old female patient presenting with a vague history of generalized body pain and skin lesions in the form of cotton threads buried under the skin, crusted plaque, multiple keloids and rusted pin buried through the skin mostly in the easily accessible areas of the body. Histopathology from the crusted plaque revealed foreign body granuloma. To satisfy her psychological or emotional need, it is the deliberate and conscious production of self-inflicted skin lesions through overvalued ideation of acupuncture on her part.

  2. A recurrent central giant cell granuloma in a young patient and orthodontic treatment: a case report.

    Science.gov (United States)

    Patel, Devaki; Minhas, Gursharan; Johnson, Paul

    2016-12-01

    Central giant cell granuloma (CGCG) is an uncommon benign intraosseous lesion of the jaw, found predominantly in children and young adults below 30 years of age. The purpose of this article was to present a summary of the current literature and a case report of an 11-year-old boy diagnosed with an aggressive CGCG involving the anterior maxilla that was removed in 2004 and subsequently recurred almost 3 years later in 2006. The presenting features of the patient and the effect of combined surgical and orthodontic treatment for this condition are discussed. This case shows how the dentition was successfully maintained with conservative surgery and orthodontic treatment in spite of the extensive destruction of the supporting bone, and the importance of long-term follow-up. The report also reminds orthodontic practitioners that rare pathological conditions can occur in their child patient groups.

  3. Immunoexpression of vascular endothelial growth factor in periapical granulomas, radicular cysts, and residual radicular cysts.

    Science.gov (United States)

    Nonaka, Cassiano Francisco Weege; Maia, Alexandre Pinto; Nascimento, George João Ferreira do; de Almeida Freitas, Roseana; Batista de Souza, Lélia; Galvão, Hébel Cavalcanti

    2008-12-01

    Our aim was to assess and compare the immunoexpression of vascular endothelial growth factor (VEGF) in periapical granulomas (PGs), radicular cysts (RCs), and residual radicular cysts (RRCs), relating it to the angiogenic index and the intensity of the inflammatory infiltrate. Twenty PGs, 20 RCs, and 10 RRCs were evaluated by immunohistochemistry using anti-VEGF antibody. Angiogenic index was determined by microvessel count (MVC) using anti-von Willebrand factor antibody. The PGs and RCs showed higher expression of VEGF than the RRCs. Lesions presenting few inflammatory infiltrate revealed the lowest immunoexpression of VEGF (P .05). VEGF is present in periapical inflammatory lesions but at a lower level in RRCs. The expression of this proangiogenic factor is closely related to the intensity of the inflammatory infiltrate in these lesions.

  4. Pyogenic granuloma associated with periodontal abscess and bone loss - A rare case report.

    Science.gov (United States)

    Panseriya, Bhrugesh J; Hungund, Shital

    2011-07-01

    A diverse group of the pathologic process can produce the enlargement of soft tissues in the oral cavity and often present a diagnostic challenge. This soft tissue enlargement may represent a variation of the normal anatomic structure, inflammatory reaction, cyst, neoplasm, and developmental anomalies. A group of reactive hyperplasias, which develop in response to chronic recurring tissue injury that stimulates an excessive tissue repair response. The pyogenic granuloma (PG) is a reactive enlargement that is an inflammatory response to local irritation such as calculus, a fractured tooth, rough dental restoration, and foreign materials or hormonal (pregnancy tumor) and rarely associated with bone loss. This paper presents a rare case of PG associated with periodontal abscess and bone loss in a 30-year-old male.

  5. Neurobrucellosis with transient ischemic attack, vasculopathic changes, intracerebral granulomas and basal ganglia infarction: a case report

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    Ozyurek Seyfi C

    2010-10-01

    Full Text Available Abstract Introduction Central nervous system involvement is a rare but serious manifestation of brucellosis. We present an unusual case of neurobrucellosis with transient ischemic attack, intracerebral vasculopathy granulomas, seizures, and paralysis of sixth and seventh cranial nerves. Case presentation A 17-year-old Caucasian man presented with nausea and vomiting, headache, double vision and he gave a history of weakness in the left arm, speech disturbance and imbalance. Physical examination revealed fever, doubtful neck stiffness and left abducens nerve paralysis. An analysis of his cerebrospinal fluid showed a pleocytosis (lymphocytes, 90%, high protein and low glucose levels. He developed generalized tonic-clonic seizures, facial paralysis and left hemiparesis. Cranial magnetic resonance imaging demonstrated intracerebral vasculitis, basal ganglia infarction and granulomas, mimicking the central nervous system involvement of tuberculosis. On the 31st day of his admission, neurobrucellosis was diagnosed with immunoglobulin M and immunoglobulin G positivity by standard tube agglutination test and enzyme-linked immunosorbent assay in both serum and cerebrospinal fluid samples (the tests had been negative until that day. He was treated successfully with trimethoprim and sulfamethoxazole, doxycyline and rifampicin for six months. Conclusions Our patient illustrates the importance of suspecting brucellosis as a cause of meningoencephalitis, even if cultures and serological tests are negative at the beginning of the disease. As a result, in patients who have a history of residence or travel to endemic areas, neurobrucellosis should be considered in the differential diagnosis of any neurologic symptoms. If initial tests fail, repetition of these tests at appropriate intervals along with complementary investigations are indicated.

  6. Mesenteric cryptococcal granuloma in a dog caused by Cryptococcus neoformans var. grubii

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    Rodrigues-Hoffmann A

    2012-09-01

    Full Text Available Jennifer R Cook, Karen E Russell, Kristin B Eden, Aline Rodrigues-HoffmannDepartment of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USAAbstract: Although cryptococcosis is usually associated with respiratory and neurologic signs in domestic species (such as sneeze, cough, nasal discharge, seizures, ataxia, clinical manifestations of the disease may be more subtle and nonspecific. A 3-year-old male castrated Boxer dog presented with a history of chronic vomiting, diarrhea, weight loss, and lethargy. At no time had respiratory or neurologic signs been noted by the owners or the primary care veterinarian. Palpation of an abdominal mass revealed an atypical lesion location: a large (16 × 9 × 7 cm mass at the root of the mesentery. Diagnosis was achieved through cytology of this mass and a positive serologic Cryptococcus capsular antigen titer; polymerase chain reaction was utilized for speciation of the abdominal isolate as Cryptococcus neoformans variety grubii. The animal was euthanized due to poor prognosis. After necropsy and histopathologic analysis, the mesenteric mass and associated lymph nodes were identified as large fungal granulomas. This is a rare manifestation of cryptococcosis, involving several visceral organs, with no remaining evidence of the route of entry of the organism. As prompt diagnosis of mycotic illness is paramount to successful management, this case indicates that cryptococcal infection should be considered as a differential diagnosis in dogs with gastrointestinal signs and lymphadenopathy. The protean nature of cryptococcosis is discussed within the context of a brief review of emerging and unresolved issues in pathogenesis.Keywords: Cryptococcus gattii, granuloma, lymphadenitis

  7. Albendazole and Corticosteroids for the Treatment of Solitary Cysticercus Granuloma: A Network Meta-analysis.

    Science.gov (United States)

    Zhao, Bing-Cheng; Jiang, Hong-Ye; Ma, Wei-Ying; Jin, Da-Di; Li, Hao-Miao; Lu, Hai; Nakajima, Hideaki; Huang, Tong-Yi; Sun, Kai-Yu; Chen, Shu-Ling; Chen, Ke-Bing

    2016-02-01

    Solitary cysticercus granuloma (SCG) is the commonest form of neurocysticercosis in the Indian subcontinent and in travelers. Several different treatment options exist for SCG. We conducted a Bayesian network meta-analysis of randomized clinical trials (RCTs) to identify the best treatment option to prevent seizure recurrence and promote lesion resolution for patients with SCG. PubMed, EMBASE and the Cochrane Library databases (up to June 1, 2015) were searched for RCTs that compared any anthelmintics or corticosteroids, alone or in combination, with placebo or head to head and reported on seizure recurrence and lesion resolution in patients with SCG. A total of 14 RCTs (1277 patients) were included in the quantitative analysis focusing on four different treatment options. A Bayesian network model computing odds ratios (OR) with 95% credible intervals (CrI) and probability of being best (Pbest) was used to compare all interventions simultaneously. Albendazole and corticosteroids combination therapy was the only regimen that significantly decreased the risk of seizure recurrence compared with conservative treatment (OR 0.32, 95% CrI 0.10-0.93, Pbest 73.3%). Albendazole and corticosteroids alone or in combination were all efficacious in hastening granuloma resolution, but the combined therapy remained the best option based on probability analysis (OR 3.05, 95% CrI 1.24-7.95, Pbest 53.9%). The superiority of the combination therapy changed little in RCTs with different follow-up durations and in sensitivity analyses. The limitations of this study include high risk of bias and short follow-up duration in most studies. Dual therapy of albendazole and corticosteroids was the most efficacious regimen that could prevent seizure recurrence and promote lesion resolution in a follow-up period of around one year. It should be recommended for the management of SCG until more high-quality evidence is available.

  8. Mitomicina C colírio como tratamento para granuloma piogênico em cavidade anoftámica Mitomicyn C eye drops as alternative treatment for pyogenic granuloma in anophthalmic socket

    Directory of Open Access Journals (Sweden)

    Hérika Danielle de Miranda Santos

    2006-10-01

    Full Text Available OBJETIVO: Avaliar a eficácia do uso tópico de colírio de mitomicina C 0,02% (MMC 0,02% no tratamento de pacientes com granuloma piogênico em cavidade anoftálmica. MÉTODOS: Seis pacientes portadores de granuloma piogênico em cavidade anoftálmica foram submetidos ao tratamento com mitomicina C 0,02% instilada quatro vezes ao dia durante ciclos quinzenais e intervalo de 15 dias entre os ciclos. Os pacientes foram acompanhados semanalmente. RESULTADOS: Foram acompanhados seis pacientes dos quais um apresentou resolução do granuloma piogênico ao final do primeiro ciclo de uso da MMC 0,02%. Em dois pacientes a MMC 0,02% foi eficaz na resolução da lesão após a segunda semana de tratamento (primeiro ciclo. Dois pacientes apresentaram resolução completa do granuloma piogênico na quinta semana de uso da MMC 0,02% (início do segundo ciclo. Este fármaco foi ineficaz em apenas um paciente que persistiu com a lesão após dois ciclos de tratamento. Não foram observadas complicações decorrentes do uso de MMC 0,02% em nenhum dos pacientes. CONCLUSÃO: A MMC 0,02% tópica mostrou-se eficaz no tratamento de granuloma piogênico em cavidade anoftálmica, entretanto, diante de casuística pequena, torna-se necessário estudo mais amplo, comparando a eficácia da MMC 0,02% com drogas já utilizadas no tratamento desta lesão, tais como os esteróides e antimetabólicos.PURPOSE: To evaluate the efficacy of mitomycin C eye drops 0.02% concentration (0.02% MMC in pyogenic granuloma in anophthalmic socket. METHODS: Six patients who presented pyogenic granuloma were treated with 0.02% MMC four times a day in fifteen-day cycles with intervals of fifteen days between each cycle. The patients were observed every week. RESULTS: Among the six studied patients, one presented a complete resolution of the pyogenic granuloma after a ten-day treatment with 0.02% MMC that is, before the end of the first cycle. In two patients, the treatment was successful

  9. A case of recurrence-mimicking charcoal granuloma in a breast cancer patient: Ultrasound,CT, PET/CT and breast-specific gamma imaging findings

    Energy Technology Data Exchange (ETDEWEB)

    Park, Dae Woong; Park, Ji Yeon; Park, Noh Hyuck; Kim, Seon Jeong; Shin, Hyuck Jai; Lee, Jeong Ju [Myongji Hospital, Seonam University College of Medicine, Goyang (Korea, Republic of); Yi, Seong Yoon [Div. of Hematology-Oncology, Dept. of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang (Korea, Republic of)

    2016-07-15

    Charcoal remains stable without causing a foreign body reaction and it may be used for preoperative localization of a non-palpable breast mass. However, cases of post-charcoal-marking granuloma have only rarely been reported in the breast, and a charcoal granuloma can be misdiagnosed as malignancy. Herein, we report the ultrasound, computed tomography (CT), 18F-fluorodeoxyglucose-positron emission tomography/CT, and breast-specific gamma imaging findings of recurrence-mimicking charcoal granuloma after breast conserving surgery, following localization with charcoal in a breast cancer patient.

  10. Aspectos radiológicos e epidemiológicos do granuloma central de células gigantes Radiological and epidemiological aspects of central giant cell granuloma

    Directory of Open Access Journals (Sweden)

    José Wilson Noleto

    2007-06-01

    Full Text Available OBJETIVO: Este estudo teve como objetivo avaliar os principais aspectos radiográficos e epidemiológicos das lesões de células gigantes (granulomas centrais de células gigantes e tumores marrons do hiperparatireoidismo. MATERIAIS E MÉTODOS: A amostra consistiu de 26 lesões de células gigantes diagnosticadas em 22 pacientes divididos em dois grupos, um deles composto por 17 pacientes que não tinham hiperparatireoidismo (grupo A e o outro formado por cinco pacientes portadores de tal distúrbio (grupo B. RESULTADOS: O sexo feminino (72,7% foi o mais acometido. As lesões ocorreram mais freqüentemente na segunda década de vida, com média de idade de 27 anos. A mandíbula (61,5% foi o arco mais envolvido. Radiograficamente, 57,7% das lesões eram multiloculares e 42,3% eram uniloculares com limites definidos. Todas as 26 lesões provocaram expansão óssea, 15,4% produziram reabsorção radicular, 50% causaram deslocamento dentário e 11,5% produziram dor. Na mandíbula, 18,7% das lesões cruzavam a linha média. O grupo A apresentou 66,7% das lesões na mandíbula e o grupo B mostrou igualdade na distribuição das lesões entre os arcos. O grupo A apresentou 66,7% das lesões multiloculares e 33,3%, uniloculares. O grupo B apresentou 62,5% das lesões uniloculares e 37,5%, multiloculares. CONCLUSÃO: As lesões de células gigantes podem manifestar-se, radiograficamente, com um amplo espectro, desde pequenas lesões uniloculares de crescimento lento até extensas lesões multiloculares. Elas apresentam características de benignidade, embora algumas lesões possam demonstrar um comportamento localmente agressivo.OBJECTIVE: The present study was aimed at evaluating main radiological and epidemiological aspects of giant cell lesions (central giant cell granuloma and brown tumors of hyperparathyroidism. MATERIALS AND METHODS: The sample consisted of 26 giant cell lesions diagnosed in 22 patients divided into two groups, one of them

  11. Imunofenotipagem e remodelamento da matriz extracelular na sarcoidose pulmonar e extrapulmonar Immunophenotyping and extracellular matrix remodeling in pulmonary and extrapulmonary sarcoidosis

    Directory of Open Access Journals (Sweden)

    Pedro Henrique Ramos Quintino da Silva

    2012-06-01

    Full Text Available OBJETIVO: Investigar o significado de marcadores de imunidade celular e de componentes elásticos/colágeno da matriz extracelular em estruturas granulomatosas em biópsias de pacientes com sarcoidose pulmonar ou extrapulmonar. MÉTODOS: Determinações qualitativas e quantitativas de células inflamatórias, de fibras de colágeno e de fibras elásticas em estruturas granulomatosas em biópsias cirúrgicas de 40 pacientes com sarcoidose pulmonar e extrapulmonar foram realizadas por histomorfometria, imuno-histoquímica, e técnicas de coloração com picrosirius e resorcina-fucsina de Weigert. RESULTADOS: A densidade de linfócitos, macrófagos e neutrófilos nas biópsias extrapulmonares foi significativamente maior do que nas biópsias pulmonares. Os granulomas pulmonares apresentaram uma quantidade significativamente maior de fibras de colágeno e menor densidade de fibras elásticas que os granulomas extrapulmonares. A quantidade de macrófagos nos granulomas pulmonares correlacionou-se com CVF (p OBJECTIVE: To investigate the significance of cellular immune markers, as well as that of collagen and elastic components of the extracellular matrix, within granulomatous structures in biopsies of patients with pulmonary or extrapulmonary sarcoidosis. METHODS: We carried out qualitative and quantitative evaluations of inflammatory cells, collagen fibers, and elastic fibers in granulomatous structures in surgical biopsies of 40 patients with pulmonary and extrapulmonary sarcoidosis using histomorphometry, immunohistochemistry, picrosirius red staining, and Weigert's resorcin-fuchsin staining. RESULTS: The extrapulmonary tissue biopsies presented significantly higher densities of lymphocytes, macrophages, and neutrophils than did the lung tissue biopsies. Pulmonary granulomas showed a significantly higher number of collagen fibers and a lower density of elastic fibers than did extrapulmonary granulomas. The amount of macrophages in the lung samples

  12. Whole lung computed tomography for detection of pulmonary metastasis of osteosarcoma confirmed at thoracotomy

    International Nuclear Information System (INIS)

    Ishida, Itsuro; Fukuma, Seigo; Sawada, Kinya; Seki, Yasuo; Tanaka, Fumitaka

    1980-01-01

    Whole lung computed tomography (CT) was performed in patients with osteosarcoma of bone to evaluate its diagnostic efficacy in comparison to that in conventional chest radiography and in whole lung tomography to detect metastatic nodules in the lung. In 11 of the 12 patients with osteosarcoma, CT detected pulmonary nodules and in 6 of the 11 patients pulmonary nodules were detected by CT, conventional chest radiography and whole lung tomography, respectively, and 22 pulmonary nodules were resected at thoracotomy and proved to be metastatic lesions. Nineteen nodules of the 22 nodules resected were detected by CT and nine of the 22 nodules were discovered only by CT, while only 10 of 22 nodules were recognized by the conventional chest radiography and the whole lung tomography. Two pulmonary nodules, measuring 1 mm and 2 mm in diameter, respectively, were not detected by any of these three methods. In three nodules that showed to be false positive in CT in the two patients, two nodules were histologically suture granulomas induced by the previous operation, and a deformed protuberance of the chest wall was erroneously interpreted to be a subpleural and intrapulmonary nodule in the remaining. We conclude that CT is the most efficient method to detect pulmonary nodules in the patients with osteosarcoma, but that the minimal size of the detectable nodule by CT is 3 mm in diameter. But a smaller nodule having a tendency to ossify can be detected by CT. (author)

  13. [Clinical and radiological features of pulmonary tuberculosis manifested as interstitial lung diseases.].

    Science.gov (United States)

    Shi, Ju-Hong; Feng, Rui-E; Tian, Xin-Lun; Xu, Wen-Bing; Xu, Zuo-Jun; Liu, Hong-Rui; Zhu, Yuan-Jue

    2009-12-01

    The purpose of this paper was to investigate the clinical and radiological features of pulmonary tuberculosis presenting as interstitial lung diseases (ILD). We analyzed the data of cases suspected of diffuse parenchyma lung diseases at this hospital between October 2003 and October 2007. The diagnosis of active pulmonary tuberculosis was based on epithelioid granuloma or positive acid-fast bacilli in lung biopsy and changes on serial radiographs obtained during treatment. The data of a series of 230 consecutive patients with suspected ILD were retrospectively analyzed. The diagnosis was confirmed by lung biopsy. Twelve patients were confirmed to have pulmonary tuberculosis. There were 5 males and 7 females with a mean age of 38 +/- 11 years (range, 17 - 68). The median course of disease in these patients was 3 months (range, 0.5 - 18 months). Patients with pulmonary tuberculosis presented with fever (11/12), cough (9/12), weight loss (7/12), dyspnea (7/12), lymphadenopathy (4/12), and splenohepatomegaly (2/12). On chest CT scan, ground-glass attenuation was identified in 4, bilateral patchy infiltration in 5, tree-in-bud appearance 1, and centrilobular lesions in 2 of the 12 patients. During the follow-up period (median, 9 month, range from 3 to 12 month), 11 patients improved, but 1 died of diabetic ketoacidosis. The diagnosis of pulmonary tuberculosis should be considered in suspected ILD patients presenting with fever, splenohepatomegaly and lymphadenopathy.

  14. MRI of the hyaline knee joint cartilage. Animal experimental and clinical studies; MRT des hyalinen Kniegelenkknorpels. Tierexperimentelle und klinische Untersuchungen

    Energy Technology Data Exchange (ETDEWEB)

    Adam, G. [Technische Hochschule Aachen (Germany). Klinik fuer Radiologische Diagnostik; Prescher, A. [Technische Hochschule Aachen (Germany). Inst. fuer Anatomie; Nolte-Ernsting, C. [Technische Hochschule Aachen (Germany). Klinik fuer Radiologische Diagnostik; Buehne, M. [Technische Hochschule Aachen (Germany). Klinik fuer Radiologische Diagnostik; Scherer, K. [Technische Hochschule Aachen (Germany). Inst. fuer Versuchstierkunde; Kuepper, W. [Technische Hochschule Aachen (Germany). Inst. fuer Versuchstierkunde; Guenther, R.W. [Technische Hochschule Aachen (Germany). Klinik fuer Radiologische Diagnostik

    1994-02-01

    The value of MR imaging for the detection of hyaline cartilage lesions using 2-D spin-echo and 3-D gradient-echo imaging was evaluated in an animal experiment in 10 dogs and in a clinical study in 30 patients. MR imaging findings were compared with histopathological and arthroscopy findings, respectively. Using MRI neither grade I nor grade II hyaline cartilage lesions were detectable. In the animal experiments 77% of grade III lesions and all the grade IV lesions were seen. However, in the clinical study only about the half of grade III and IV lesions were detected. 3-D gradient-echo MR imaging was superior to 2-D spin-echo imaging (p<0.001), while 3-D FLASH and 3-D FISP did not differ significantly in the detection rate (p<0.34). 3-D gradient-echo MR imaging seems to be the best method for the delineation of high grade cartilage lesions. However, early stages of cartilage degeneration are invisible even with this imaging modality. (orig.) [Deutsch] Die Wertigkeit der MRT in der Erfassung von Knorpellaesionen mit 2-D-Spin-Echo- und 3-D-Grafienten-Echo-Sequenzen wurde in einer tierexperimentellen Untersuchung an 10 Hunden sowie in einer klinischen Studie an 30 Patienten ueberprueft. Die kernspintomographischen Ergebnisse wurden mit dem pathologisch-anatomischen Befund bzw. der Arthroskopie verglichen. MR-tomographisch konnten weder Grad-I- noch Grad-II-Knorpellaesionen erfasst werden. Die Erkennbarkeitsrate der Grad-III- und -IV-Laesionen lag fuer die tierexperimentellen Untersuchungen bei 77 bzw. 100%, waehrend klinisch nur etwa 50% dieser Veraenderungen erkannt werden konnten. Dabei waren die 3-D-Gradienten-Echo-Sequenzen den 2-D-Spin-Echo-Sequenzen signifikant ueberlegen (p<0,001), waehrend sich die 3-D-Gradienten-Echo-Sequenzen FISP und FLASH nicht voneinander unterschieden (p<0,34). Derzeit muessen die 3-D-Gradienten-Echo-Sequenzen als die beste Methode zur Erfassung hoehergradiger Knorpellaesionen angesehen werden. Fruehe Stadien der Knorpelschaedigung sind

  15. Investigations into the visualisation of osseous and hyaline cartilaginous surface structures of the femural head using X-ray computed tomography. Untersuchung der Visualisierbarkeit knoecherner und hyalin knorpeliger Oberflaechenstrukturen des caput femoris mit Roentgen-Computertomographie

    Energy Technology Data Exchange (ETDEWEB)

    Laemmermann, G.

    1989-03-06

    This study investigates into the extent to which fine osseous structures in the head of the femur and hyaline cartilaginous surfaces of the hip joint are accessible to X-ray computed tomography as a method of diagnosis. At first, a true model of the femural head (post-mortem preparation embedded in methylacrylate) was tomographed to compare the sectional displays thus obtained with hard-microtome sections of similar thickness made at the same levels. This permitted preliminary evaluations to be carried out and confirmed that those structures can be visualised by high-resolution CT (1 mm sections). Methods using high-resolution sectional imaging have a role in examinations of congruence in the the hip joint. Particularly useful here are three-dimensional displays of osseous and cartilaginous surfaces of the joint parts examined. Further research is needed until a more refined method of reconstruction can be made available, the usefulness of which in actual practice will depend on the degree of geometrical congruence achieved between a patient's joint and its display on the screen. (orig./GDG).

  16. [Effects of in vitro continuous passaging on the phenotype of mouse hyaline chondrocytes and the balance of the extra- cellular matrix].

    Science.gov (United States)

    Linyi, Cai; Xiangli, Kong; Jing, Xie

    2016-06-01

    This study aimed to investigate the effects of in vitro continuous passaging on the morphological phenotype and differentiation characteristics of mouse hyaline chondrocytes, as well as on the balance of the extracellular matrix (ECM). Enzymatic digestion was conducted to isolate mouse hyaline chondrocytes, which expanded over five passages in vitro. Hematoxylin-eosin stain was used to show the changes in chondrocyte morphology. Semi-quantitative polymerase chain reaction was performed to analyze the mRNA changes in the marker genes, routine genes, matrix metalloproteinases (MMPs), and tissue inhibitors of MMPs (TIMPs) in chondrocytes. Zymography was carried out to elucidate changes in gelatinase activities. After continuous expansion in vitro, the morphology of round or polygonal chondrocytes changed to elongated and spindled shape. The expression of marker genes significantly decreased (P 0.05). Meanwhile, the ratio of MMPs/TIMPs was altered. At the protein level, the activities of gelatinases decreased after passaging, especially for P4 and P5 chondrocytes (P cartilage ECM became uncontrollable and led to the imbalance of ECM homeostasis. When hyaline chondrocytes are applied in research on relevant diseases or cartilage tissue engineering, P0-P2 chondrocytes should be used.

  17. Role of lifestyle modifications for patients with laryngeal granuloma caused by gastro-esophageal reflux: comparison between conservative treatment and the surgical approach.

    Science.gov (United States)

    Kobayashi, Rika; Tsunoda, Koichi; Ueha, Rumi; Fujimaki, Yoko; Nito, Takaharu; Yamasoba, Tatsuya

    2017-03-01

    It is considered that a regimen combining pharmacologic management and lifestyle modifications is the most effective treatment for laryngeal granulomas caused by GER. This study compared the results of the combination therapy and surgery to determine the best treatment of laryngeal granuloma caused by gastro-esophageal reflux in 51 patients. Prospective study. In the conservative treatment group, the CR rate was 89.7% and recurrence rate was 2.6%, while the lesions remained in patients (7.7%). This study compared the CR and recurrence rates between conservative treatment and surgery for granuloma. The results showed that the laryngeal granuloma recurrence rate was significantly lower with the conservative treatment regimen compared with surgery (p = .0016).

  18. Pulmonary capillary pressure in pulmonary hypertension.

    Science.gov (United States)

    Souza, Rogerio; Amato, Marcelo Britto Passos; Demarzo, Sergio Eduardo; Deheinzelin, Daniel; Barbas, Carmen Silvia Valente; Schettino, Guilherme Paula Pinto; Carvalho, Carlos Roberto Ribeiro

    2005-04-01

    Pulmonary capillary pressure (PCP), together with the time constants of the various vascular compartments, define the dynamics of the pulmonary vascular system. Our objective in the present study was to estimate PCPs and time constants of the vascular system in patients with idiopathic pulmonary arterial hypertension (IPAH), and compare them with these measures in patients with acute respiratory distress syndrome (ARDS). We conducted the study in two groups of patients with pulmonary hypertension: 12 patients with IPAH and 11 with ARDS. Four methods were used to estimate the PCP based on monoexponential and biexponential fitting of pulmonary artery pressure decay curves. PCPs in the IPAH group were considerably greater than those in the ARDS group. The PCPs measured using the four methods also differed significantly, suggesting that each method measures the pressure at a different site in the pulmonary circulation. The time constant for the slow component of the biexponential fit in the IPAH group was significantly longer than that in the ARDS group. The PCP in IPAH patients is greater than normal but methodological limitations related to the occlusion technique may limit interpretation of these data in isolation. Different disease processes may result in different times for arterial emptying, with resulting implications for the methods available for estimating PCP.

  19. Biostable scaffolds of polyacrylate polymers implanted in the articular cartilage induce hyaline-like cartilage regeneration in rabbits.

    Science.gov (United States)

    Sancho-Tello, María; Forriol, Francisco; Martín de Llano, José J; Antolinos-Turpin, Carmen; Gómez-Tejedor, José A; Gómez Ribelles, José L; Carda, Carmen

    2017-07-05

    To study the influence of scaffold properties on the organization of in vivo cartilage regeneration. Our hypothesis was that stress transmission to the cells seeded inside the pores of the scaffold or surrounding it, which is highly dependent on the scaffold properties, determines the differentiation of both mesenchymal cells and dedifferentiated autologous chondrocytes. 4 series of porous scaffolds made of different polyacrylate polymers, previously seeded with cultured rabbit chondrocytes or without cells, were implanted in cartilage defects in rabbits. Subchondral bone was injured during the surgery to allow blood to reach the implantation site and fill the scaffold pores. At 3 months after implantation, excellent tissue regeneration was obtained, with a well-organized layer of hyaline-like cartilage at the condylar surface in most cases of the hydrophobic or slightly hydrophilic series. The most hydrophilic material induced the poorest regeneration. However, no statistically significant difference was observed between preseeded and non-preseeded scaffolds. All of the materials used were biocompatible, biostable polymers, so, in contrast to some other studies, our results were not perturbed by possible effects attributable to material degradation products or to the loss of scaffold mechanical properties over time due to degradation. Cartilage regeneration depends mainly on the properties of the scaffold, such as stiffness and hydrophilicity, whereas little difference was observed between preseeded and non-preseeded scaffolds.

  20. [Water-exchange processes in hyaline cartilage and its basic components in a normal state and in osteoarthritis].

    Science.gov (United States)

    Nikolaeva, S S; Chkhol, K Z; Bykov, V A; Roshchina, A A; Iakovleva, L V; Koroleva, O A; Omel'ianenko, N P; Rebrov, L B

    2000-01-01

    The content of different forms of tissue water was studied in the normal articular cartilage and osteoarthrosis cartilage and its structural components: collagen, potassium hyaluronate, sodium chondroitinsulphate and its complexes. In the components of cartilage matrix a few of fractions of bound water different in the strength of binding are present. At the maximal humidity, all water in collagen binds with the active groups of biopolymers and in the glycosaminoglycans, in addition to bound water, are present, two crystal forms of freezing water (free water) at least. The quantity of free water in the collagen-chondroitin sulphat membrane, is increased with the increase of chondroitin sulphate. In the collagen-hyaluronate complex, fraction of free water is found only at the low concentration of hyaluronate kalium. It was shown that in the hyalin cartilage, in different from the other connective tissue (skin, achilles tendon), the most part of water is free water and its quantity is increased in the osteoarthrosis. It is supposed that the rearrangement of binding and free-water fractions in the osteoarthrosis is the result of deficiency of hyaluronic acid and therefore this may be regarded in the improvement of methods of treatment. This scientific and methodical approach allow to receive information on the forms and binding energy of water in the biological tissues, which is absorbed from fluids and steam phase and determine characters of the pathological changes.

  1. Hyaline articular cartilage: relaxation times, pulse-sequence parameters and MR appearance at 1.5 T

    Energy Technology Data Exchange (ETDEWEB)

    Chalkias, S.M. [Dept. of Radiology, A.H.E.P.A. General Hospital of the Aristotelian Univ., Thessaloniki (Greece); Pozzi-Mucelli, R.S. [Dept. of Radiology, Univ. of Trieste (Italy); Pozzi-Mucelli, M. [Orthopaedic Clinic, Univ. of Trieste (Italy); Frezza, F. [Dept. of Radiology, Univ. of Trieste (Italy); Longo, R. [Dept. of Radiology, Univ. of Trieste (Italy)

    1994-08-01

    In order to optimize the parameters for the best visualization of the internal architecture of the hyaline articular cartilage a study both ex vivo and in vivo was performed. Accurate T1 and T2 relaxation times of articular cartilage were obtained with a particular mixed sequence and then used for the creation of isocontrast intensity graphs. These graphs subsequently allowed in all pulse sequences (spin echo, SE and gradient echo, GRE) the best combination of repetition time (TR), echo time (TE) and flip angle (FA) for optimization of signal differences between MR cartilage zones. For SE sequences maximum contrast between cartilage zones can be obtained by using a long TR (> 1,500 ms) with a short TE (< 30 ms), whereas for GRE sequences maximum contrast is obtained with the shortest TE (< 15 ms) combined with a relatively long TR (> 400 ms) and an FA greater than 40 . A trilaminar appearance was demonstrated with a superficial and deep hypointense zone in all sequences and an intermediate zone that was moderately hyperintense on SE T1-weighted images, slightly more hyperintense on proton density Rho and SE T2-weighted images and even more hyperintense on GRE images. (orig.)

  2. Deciphering chondrocyte behaviour in matrix-induced autologous chondrocyte implantation to undergo accurate cartilage repair with hyaline matrix.

    Science.gov (United States)

    Demoor, M; Maneix, L; Ollitrault, D; Legendre, F; Duval, E; Claus, S; Mallein-Gerin, F; Moslemi, S; Boumediene, K; Galera, P

    2012-06-01

    Since the emergence in the 1990s of the autologous chondrocytes transplantation (ACT) in the treatment of cartilage defects, the technique, corresponding initially to implantation of chondrocytes, previously isolated and amplified in vitro, under a periosteal membrane, has greatly evolved. Indeed, the first generations of ACT showed their limits, with in particular the dedifferentiation of chondrocytes during the monolayer culture, inducing the synthesis of fibroblastic collagens, notably type I collagen to the detriment of type II collagen. Beyond the clinical aspect with its encouraging results, new biological substitutes must be tested to obtain a hyaline neocartilage. Therefore, the use of differentiated chondrocytes phenotypically stabilized is essential for the success of ACT at medium and long-term. That is why researchers try now to develop more reliable culture techniques, using among others, new types of biomaterials and molecules known for their chondrogenic activity, giving rise to the 4th generation of ACT. Other sources of cells, being able to follow chondrogenesis program, are also studied. The success of the cartilage regenerative medicine is based on the phenotypic status of the chondrocyte and on one of its essential component of the cartilage, type II collagen, the expression of which should be supported without induction of type I collagen. The knowledge accumulated by the scientific community and the experience of the clinicians will certainly allow to relief this technological challenge, which influence besides, the validation of such biological substitutes by the sanitary authorities. Copyright © 2012 Elsevier Masson SAS. All rights reserved.

  3. Colonization of a Central Venous Catheter by the Hyaline Fungus Fusarium solani Species Complex: A Case Report and SEM Imaging

    Directory of Open Access Journals (Sweden)

    Alberto Colombo

    2013-01-01

    Full Text Available The incidence of opportunistic infections by filamentous fungi is increasing partly due to the widespread use of central venous catheters (CVC, indwelling medical devices, and antineoplastic/immunosuppressive drugs. The case of a 13-year-old boy under treatment for acute lymphoblastic leukemia is presented. The boy was readmitted to the Pediatric Ward for intermittent fever of unknown origin. Results of blood cultures drawn from peripheral venous sites or through the CVC were compared. CVC-derived bottles (but not those from peripheral veins yielded hyaline fungi that, based on morphology, were identified as belonging to the Fusarium solani species complex. Gene amplification and direct sequencing of the fungal ITS1 rRNA region and the EF-1alpha gene confirmed the isolate as belonging to the Fusarium solani species complex. Portions of the CVC were analyzed by scanning electron microscopy. Fungi mycelia with long protruding hyphae were seen into the lumen. The firm adhesion of the fungal formation to the inner surface of the catheter was evident. In the absence of systemic infection, catheter removal and prophylactic voriconazole therapy were followed by disappearance of febrile events and recovery. Thus, indwelling catheters are prone to contamination by environmental fungi.

  4. Injectable glycosaminoglycan-protein nano-complex in semi-interpenetrating networks: A biphasic hydrogel for hyaline cartilage regeneration.

    Science.gov (United States)

    Radhakrishnan, Janani; Subramanian, Anuradha; Sethuraman, Swaminathan

    2017-11-01

    Articular hyaline cartilage regeneration remains challenging due to its less intrinsic reparability. The study develops injectable biphasic semi-interpenetrating polymer networks (SIPN) hydrogel impregnated with chondroitin sulfate (ChS) nanoparticles for functional cartilage restoration. ChS loaded zein nanoparticles (∼150nm) prepared by polyelectrolyte-protein complexation were interspersed into injectable SIPNs developed by blending alginate with poly(vinyl alcohol) and calcium crosslinking. The hydrogel exhibited interconnected porous microstructure (39.9±5.8μm pore diameter, 57.7±5.9% porosity), 92% swellability and >350Pa elastic modulus. Primary chondrocytes compatibility, chondrocyte-matrix interaction with cell-cell clustering and spheroidal morphology was demonstrated in ChS loaded hydrogel and long-term (42days) proliferation was also determined. Higher fold expression of cartilage-specific genes sox9, aggrecan and collagen-II was observed in ChS loaded hydrogel while exhibiting poor expression of collagen-I. Immunoblotting of aggregan and collagen II demonstrate favorable positive influence of ChS on chondrocytes. Thus, the injectable biphasic SIPNs could be promising composition-mimetic substitute for cartilage restoration at irregular defects. Copyright © 2017 Elsevier Ltd. All rights reserved.

  5. Management of Pulmonary Nodules

    OpenAIRE

    Arvin Aryan

    2010-01-01

    Pulmonary nodule characterization is currently being redefined as new clinical, radiological and pathological data are reported, necessitating a reevaluation of the clinical management."nIn approach to an incidentally detected pulmonary nodule, we should consider that there are different risk situations, different lesion morphologies, and different sizes with various management options."nIn this session we will review the different risk situations for patients with pulmonary nodules...

  6. Cystic pulmonary hydatidosis

    Directory of Open Access Journals (Sweden)

    Malay Sarkar

    2016-01-01

    Full Text Available Cystic echinococcosis (CE is a zoonotic parasitic disease caused by the larval stages of the cestode Echinococcus granulosus. Worldwide, pulmonary hydatid cyst is a significant problem medically, socially, and economically. Surgery is the definitive therapy of pulmonary hydatidosis. Benzimidazoles may be considered in patients with a surgical contraindication. This review will focus on pathogenesis, lifecycle, clinical features, and management of pulmonary hydatid disease.

  7. First report of a spermatic granuloma and varicocele in a marsupial: A Koala (Phascolarctos cinereus) Case Study.

    Science.gov (United States)

    Schultz, B K; Palmieri, C; Nicolson, V; Larkin, R; Keeley, T; McGowan, M; Johnston, S D

    2016-08-01

    This study reports the first documented clinical case of a spermatic granuloma and varicocele in a marsupial. Initial clinical presentation included gross morphological changes in the left scrotal cord, epididymis and testis. Ultrasonography of the scrotum and spermatic cord, and gross and histopathological examination after hemicastration, confirmed the condition as a spermatic granuloma affecting the left caput epididymis, with a varicocele in the left proximal spermatic cord, which was causing azoospermia and infertility. Semen quality and serum testosterone secretion following a GnRH challenge was assessed prior to, and following surgery. After hemi-castration, an increase in androgen secretion to within normal reference ranges for the koala was observed with a subsequent increase in semen production and sperm quality resulting in the sire of a pouch young, 12months later. Copyright © 2016 Elsevier Ltd. All rights reserved.

  8. Characterization of tuberculous granulomas in different stages of progression and associated tertiary lymphoid tissue in goats experimentally infected with Mycobacterium avium subsp. hominissuis.

    Science.gov (United States)

    Schinköthe, Jan; Köhler, Heike; Liebler-Tenorio, Elisabeth M

    2016-08-01

    Oral infection of goats with Mycobacterium avium subsp. hominissuis (MAH) resulted in a large variety of granulomas in organized gut-associated lymphatic tissues and intestinal lymph nodes. To characterize the cellular composition of granulomas, CD4(+), CD8(+), γδ, B lymphocytes and plasma, CD25(+), CD68(+), MHC-II(+), Ki67(+) and endothelial cells were labeled in consecutive frozen sections by immunohistochemistry and acid fast bacilli (AFB) by Kinyoun stain. Granulomas with extensive necrosis, little mineralization and variable numbers of AFB surrounded by many CD4(+) T cells, but only few epitheloid macrophages were observed in severely sick goats at 2-3mpi. They were interpreted as exuberant immune reaction. Organized granulomas with very few AFB were seen in clinically healthy goats at 13mpi. The necrotic cores were surrounded by a zone of granulomatous infiltrate with many epitheloid macrophages and few lymphocytes. This zone was initially wide and highly vascularized and became progressively smaller. It was enclosed by an increasing layer of connective tissue. All organized granulomas were surrounded by compartimentalized tertiary lymphoid tissue. The granulomas in experimental infection of goats with MAH reflect the heterogeneity of lesions seen in mycobacterial infections of humans and ruminants and are therefore valuable for comparative research. Copyright © 2016 Elsevier Ltd. All rights reserved.

  9. Pulmonary vasculitis: imaging features

    International Nuclear Information System (INIS)

    Seo, Joon Beom; Im, Jung Gi; Chung, Jin Wook; Goo, Jin Mo; Park, Jae Hyung; Yeon, Kyung Mo; Song, Jae Woo

    1999-01-01

    Vasculitis is defined as an inflammatory process involving blood vessels, and can lead to destruction of the vascular wall and ischemic damage to the organs supplied by these vessels. The lung is commonly affected. A number of attempts have been made to classify and organize pulmonary vasculitis, but because the clinical manifestations and pathologic features of the condition overlap considerably, these afforts have failed to achieve a consensus. We classified pulmonary vasculitis as belonging to either the angitiis-granulomatosis group, the diffuse pulmonary hemorrhage with capillaritis group, or 'other'. Characteristic radiographic and CT findings of the different types of pulmonary vasculitis are illustrated, with a brief discussion of the respective disease entities

  10. Anti-inflammatory and anti-granuloma activity of Berberis aristata DC. in experimental models of inflammation

    Science.gov (United States)

    Kumar, Rohit; Gupta, Yogendra Kumar; Singh, Surender

    2016-01-01

    Objective: Berberis aristata (Berberidaceae) is an important medicinal plant used in traditional system of medicine for the treatment of rheumatoid arthritis and other inflammatory disorders. The aim of the present study is to scientifically validate the traditional use of BA in the treatment of inflammatory disorders. Materials and Methods: Anti-inflammatory and anti-granuloma activity of BA hydroalcoholic extract (BAHE) were evaluated in experimental models, viz., carrageenan-induced paw edema, cotton pellet-induced granuloma formation, and complete Freund's adjuvant-induced stimulation of peritoneal macrophages in rats. Expression of inflammatory mediators, viz., tumor necrosis factor-alpha (TNF-α), interleukin-1β (IL-1β), IL-6, IL-10, TNF-R1, and cyclooxygenase-2 (COX-2) was carried out in serum and peritoneal macrophages to derive the plausible mechanism of BAHE in activated peritoneal macrophages. Results: Pretreatment with BAHE produced a dose-dependent reduction (P < 0.01) in carrageenan-induced paw edema and cotton pellet-induced granuloma model. BAHE treatment produced significant (P < 0.01) reduction in serum inflammatory cytokine levels as compared to control. Protein expression of pro-inflammatory markers, IL-1β, IL-6, TNF-R1, and COX-2, was found to be reduced in stimulated macrophages whereas anti-inflammatory cytokine, IL-10, was upregulated in peritoneal macrophages. Conclusion: The result of the present study thus demonstrates the anti-inflammatory and anti-granuloma activity of BAHE which may be attributed to its inhibitory activity on macrophage-derived cytokine and mediators. PMID:27114638

  11. Potential Occupational Risks Associated with Pulmonary Toxicity of Carbon Nanotubes.

    Science.gov (United States)

    Manke, Amruta; Luanpitpong, Sudjit; Rojanasakul, Yon

    Given their remarkable properties, carbon nanotubes (CNTs) have made their way through various industrial and medicinal applications and the overall production of CNTs is expected to grow rapidly in the next few years, thus requiring an additional recruitment of workers. However, their unique applications and desirable properties are fraught with concerns regarding occupational exposure. The concern about worker exposure to CNTs arises from the results of recent animal studies. Short-term and sub-chronic exposure studies in rodents have shown consistent adverse health effects such as pulmonary inflammation, granulomas, fibrosis, genotoxicity and mesothelioma after inhalation or instillation of several types of CNTs. Furthermore, physicochemical properties of CNTs such as dispersion, functionalization and particle size can significantly affect their pulmonary toxicity. Risk estimates from animal studies necessitate implementation of protective measures to limit worker exposure to CNTs. Information on workplace exposure is very limited, however, studies have reported that CNTs can be aerosolized and attain respirable airborne levels during synthesis and processing activities in the workplace. Quantitative risk assessments from sub-chronic animal studies recommend the health-based need to reduce exposures below the recommended exposure limit of 1 µg/m 3 . Practice of prevention measures including the use of engineering controls, personal protective equipment, health surveillance program, safe handling and use, as well as worker training can significantly minimize worker exposure and improve worker health and safety.

  12. Pathology and immune reactivity: understanding multidimensionality in pulmonary tuberculosis.

    Science.gov (United States)

    Dorhoi, Anca; Kaufmann, Stefan H E

    2016-03-01

    Heightened morbidity and mortality in pulmonary tuberculosis (TB) are consequences of complex disease processes triggered by the causative agent, Mycobacterium tuberculosis (Mtb). Mtb modulates inflammation at distinct stages of its intracellular life. Recognition and phagocytosis, replication in phagosomes and cytosol escape induce tightly regulated release of cytokines [including interleukin (IL)-1, tumor necrosis factor (TNF), IL-10], chemokines, lipid mediators, and type I interferons (IFN-I). Mtb occupies various lung lesions at sites of pathology. Bacteria are barely detectable at foci of lipid pneumonia or in perivascular/bronchiolar cuffs. However, abundant organisms are evident in caseating granulomas and at the cavity wall. Such lesions follow polar trajectories towards fibrosis, encapsulation and mineralization or liquefaction, extensive matrix destruction, and tissue injury. The outcome is determined by immune factors acting in concert. Gradients of cytokines and chemokines (CCR2, CXCR2, CXCR3/CXCR5 agonists; TNF/IL-10, IL-1/IFN-I), expression of activation/death markers on immune cells (TNF receptor 1, PD-1, IL-27 receptor) or abundance of enzymes [arginase-1, matrix metalloprotease (MMP)-1, MMP-8, MMP-9] drive genesis and progression of lesions. Distinct lesions coexist such that inflammation in TB encompasses a spectrum of tissue changes. A better understanding of the multidimensionality of immunopathology in TB will inform novel therapies against this pulmonary disease.

  13. Florid Granuloma Annulare-Like Reaction in Regional Lymph Nodes After "Regression" of Red Pigment in Tattoos.

    Science.gov (United States)

    Carter, Michael D; Trites, Jonathan; McNeil, Shelly A; Walsh, Noreen N M; Bullock, Martin J

    2018-05-01

    A healthy 50-year-old woman had a tattoo performed on the posterior aspect of her neck and another on the dorsum of her left foot. Several weeks later, she noted redness, tenderness, and intense pruritis at both tattoo sites. Treatment with cephalexin and hydrocortisone cream was instituted, without success. Within a few months, the red, but not black, pigment had disappeared from both tattoos and was replaced by pale areas of scarring. Persistently enlarged left supraclavicular and suboccipital lymph nodes were excised 7 and 10 months after receipt of the tattoos, respectively. The nodes were pigmented on gross examination, and on microscopy, a granuloma annulare-like reaction was observed. Normal lymphoid tissue was seen to be replaced by large palisading granulomas with central degenerative change, abundant stromal mucin, and scattered deposits of tattoo pigment. Histochemical stains, tissue culture, and serological studies revealed no evidence of infection. There are rare reports of granuloma annulare-like reactions in tattoos, and these are believed to represent delayed-type hypersensitivity reactions. Our case is unique in the observation of this reaction pattern in regional lymph nodes, and it expands the spectrum of complications known to be associated with tattoos.

  14. Regulation of pulmonary inflammation by mesenchymal cells

    NARCIS (Netherlands)

    Alkhouri, Hatem; Poppinga, Wilfred Jelco; Tania, Navessa Padma; Ammit, Alaina; Schuliga, Michael

    2014-01-01

    Pulmonary inflammation and tissue remodelling are common elements of chronic respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF), and pulmonary hypertension (PH). In disease, pulmonary mesenchymal cells not only contribute to tissue

  15. The Critical Role of Pulmonary Arterial Compliance in Pulmonary Hypertension

    Science.gov (United States)

    Prins, Kurt W.; Pritzker, Marc R.; Scandurra, John; Volmers, Karl; Weir, E. Kenneth

    2016-01-01

    The normal pulmonary circulation is a low-pressure, high-compliance system. Pulmonary arterial compliance decreases in the presence of pulmonary hypertension because of increased extracellular matrix/collagen deposition in the pulmonary arteries. Loss of pulmonary arterial compliance has been consistently shown to be a predictor of increased mortality in patients with pulmonary hypertension, even more so than pulmonary vascular resistance in some studies. Decreased pulmonary arterial compliance causes premature reflection of waves from the distal pulmonary vasculature, leading to increased pulsatile right ventricular afterload and eventually right ventricular failure. Evidence suggests that decreased pulmonary arterial compliance is a cause rather than a consequence of distal small vessel proliferative vasculopathy. Pulmonary arterial compliance decreases early in the disease process even when pulmonary artery pressure and pulmonary vascular resistance are normal, potentially enabling early diagnosis of pulmonary vascular disease, especially in high-risk populations. With the recognition of the prognostic importance of pulmonary arterial compliance, its impact on right ventricular function, and its contributory role in the development and progression of distal small-vessel proliferative vasculopathy, pulmonary arterial compliance is an attractive target for the treatment of pulmonary hypertension. PMID:26848601

  16. Non-syndromic multiple impacted supernumerary teeth with peripheral giant cell granuloma

    Directory of Open Access Journals (Sweden)

    Pankaj Bansal

    2011-01-01

    Full Text Available Peripheral giant cell granuloma (PGCG is a relatively frequent benign reactive lesion of the gingiva, originating from the periosteum or periodontal membrane following local irritation or chronic trauma. PGCG manifests as a red-purple nodule located in the region of the gingiva or edentulous alveolar margins. The lesion can develop at any age, although it is more common between the second and third decades of life, and shows a slight female predilection. PGCG is a soft tissue lesion that very rarely affects the underlying bone, although the latter may suffer superficial erosion. A supernumerary tooth is one that is additional to the normal series and can be found in almost any region of the dental arch. These teeth may be single, multiple, erupted or unerupted and may or may not be associated with syndrome. Usually, they cause one or the other problem in eruption or alignment of teeth, but may also present without disturbing the normal occlusion or eruption pattern. Management of these teeth depends on the symptoms. Presented here is a case of PGCG in relation to the lower left permanent first molar with three supernumerary teeth in the mandibular arch but no associated syndrome.

  17. [Unexpected treatable dyspnea caused by intratracheal granuloma in an amyotrophic lateral sclerosis patient with mechanical ventilation].

    Science.gov (United States)

    Ishida, Shimon; Kimura, Fumiharu; Hosokawa, Takafumi; Satoh, Toshihiko; Furutama, Daisuke; Sugino, Masakazu

    2007-09-01

    Respiratory insufficiency is a problem that develops in nearly all people diagnosed with amyotrophic lateral sclerosis (ALS). A 46-year-old man with ALS, who had been in a bedridden state with tracheal ventilation support, complained of faintness and dyspnea. The airway pressure of the ventilator had increased, and bleeding from the trachea had occurred several times. A fiberoptic bronchoscopy showed granulation located on the anterior wall of the trachea and severe airway obstruction of the tracheostomy tube. Although a long tracheostomy tube had been intubated for the initial management of the tracheal granulation, a tumor on the posterior tracheal wall had relapsed and occluded the tracheal lumen. A self-expandable metallic airway stent was placed into the tracheal stenosis. After stenting, his symptoms of dyspnea and syncope imploved, and the increased airway pressure of the ventilator was normalized. We speculated that the tracheal granuloma had occurred due to a tracheal mucosal injury related to endotracheal suctioning. We should pay attention to complaints of dyspnea in ALS patients with tracheostomy and make a careful consideration to airway care including suction management.

  18. Central giant cell granuloma of the jaws: clinical and radiological evaluation of 22 cases

    Energy Technology Data Exchange (ETDEWEB)

    Sun, Zhi-Jun; Cai, Yu; Zhao, Yi-Fang [School and Hospital of Stomatology, Wuhan University, Key Laboratory for Oral Biomedical Engineering of Ministry of Education, Wuhan, Hubei (China); Wuhan University, Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan, Hubei (China); Zwahlen, Roger A. [University of Hong Kong, Discipline of Oral and Maxillofacial Surgery, Faculty of Dentistry (China); Zheng, Yun-Fei [School and Hospital of Stomatology, Wuhan University, Key Laboratory for Oral Biomedical Engineering of Ministry of Education, Wuhan, Hubei (China); Wang, Shi-Ping [Wuhan University, Department of Oral and Maxillofacial Radiology, School and Hospital of Stomatology, Wuhan (China)

    2009-09-15

    The objective was to investigate the clinical and radiological characteristics of central giant cell granulomas (CGCGs) of the jaws. A retrospective analysis of a 20-year database was performed regarding both clinical and radiological features of 22 patients affected with CGCGs of the jaws. Fourteen women and 8 men were included with the age range of 7-81 years (mean 31.7 years). Among the 22 lesions, 16 were located in the mandible and 6 in the maxilla. Painless swelling was the most common clinical feature in 18 of all cases. Limited mouth opening was noted in 2 patients where the lesions involved the condyle. Radiographically, 13 lesions were homogeneously osteolytic and 9 lesions were trabeculated. Fifteen lesions were unilocular and 14 lesions presented with well-defined but not sclerotic margins. CT images in 5 patients clearly showed the trabeculation within the lesions. The follow-up ranged from 1.5 to 11 years with a mean period of 5 years. Three out of 9 aggressive and 1 out of 13 nonaggressive lesions developed recurrence. Diagnosis of CGCGs of the jaws depends on both correct interpretation of clinical, radiographic and pathological data. Differentiation between aggressive and nonaggressive CGCGs should be considered to improve individual treatment planning. (orig.)

  19. Central giant cell granuloma of the jaws: clinical and radiological evaluation of 22 cases

    International Nuclear Information System (INIS)

    Sun, Zhi-Jun; Cai, Yu; Zhao, Yi-Fang; Zwahlen, Roger A.; Zheng, Yun-Fei; Wang, Shi-Ping

    2009-01-01

    The objective was to investigate the clinical and radiological characteristics of central giant cell granulomas (CGCGs) of the jaws. A retrospective analysis of a 20-year database was performed regarding both clinical and radiological features of 22 patients affected with CGCGs of the jaws. Fourteen women and 8 men were included with the age range of 7-81 years (mean 31.7 years). Among the 22 lesions, 16 were located in the mandible and 6 in the maxilla. Painless swelling was the most common clinical feature in 18 of all cases. Limited mouth opening was noted in 2 patients where the lesions involved the condyle. Radiographically, 13 lesions were homogeneously osteolytic and 9 lesions were trabeculated. Fifteen lesions were unilocular and 14 lesions presented with well-defined but not sclerotic margins. CT images in 5 patients clearly showed the trabeculation within the lesions. The follow-up ranged from 1.5 to 11 years with a mean period of 5 years. Three out of 9 aggressive and 1 out of 13 nonaggressive lesions developed recurrence. Diagnosis of CGCGs of the jaws depends on both correct interpretation of clinical, radiographic and pathological data. Differentiation between aggressive and nonaggressive CGCGs should be considered to improve individual treatment planning. (orig.)

  20. Mucor irregularis infection and lethal midline granuloma: a case report and review of published literature.

    Science.gov (United States)

    Li, Dong Ming; Lun, Li De

    2012-12-01

    Mucor irregularis (Rhizomucor variabilis) infection and lethal midline granuloma (LMG) are characterized by progressive swelling, ulceration, and destruction of the central face that is usually fatal. Pathological features are inflammation, necrosis, and granulation. LMG has been called by various names, and in recent years, it has been known as NK/T cell lymphoma. However, diagnosis still relies on the progressive necrosis course rather than malignancy in histology. The disease has long challenged physicians, particularly when it worsens with radiotherapy or chemotherapy but sometimes achieves total remission without anti-malignancy therapies. We describe a 35-year-old man who had typical clinical-pathological symptoms of LMG, which turned out to be primary M. irregularis infection; that was diagnosed by positive tissue culture and fungal elements in histology. The patient was successfully treated with antifungal therapy (liposomal amphotericin B, total 4,600 mg and amphotericin B total 277 mg, over a duration of 70 days). We hereby review current knowledge about the epidemiology, clinical manifestations, radiographic characteristics, and pathologic features of LMG with those of M. irregularis infection and their associations. We conclude that primary M. irregulars infection can mimic the clinico-pathological symptoms of LMG and the condition responds favorably to aggressive antifungal therapy.

  1. Granuloma Annulare and Morphea: Correlation with Borrelia burgdorferi Infections and Chlamydia-related Bacteria

    Directory of Open Access Journals (Sweden)

    Lauri Tolkki

    2017-12-01

    Full Text Available A retrospective study of 109 skin biopsies with granuloma annulare (GA or morphea histology from patients with suspected tick bite was performed. Biopsies were tested for cutaneous Borrelia burgdorferi DNA using PCR. The same biopsies were analysed for tick-borne novel agents, Chlamydia-related bacteria (members of the Chlamydiales order, using a PCR-based method. Borrelia DNA was detected in 7/73 (9.6% biopsies with GA and in 1/36 (2.8 % biopsies with morphea, while Chlamydiales DNA was found in 53/73 (72.6% biopsies with GA and 25/34 (73.4% biopsies with morphea. All Borrelia DNA-positive GA samples were also positive for Chlamydiales DNA. The Chlamydiales sequences detected in GA were heterogeneous and contained Waddliaceae and Rhabdochlamydiaceae bacteria, which are also present in Ixodes ricinus ticks, while the Chlamydiales sequences detected in morphea closely resembled those found in healthy skin. In conclusion, tick-mediated infections can trigger GA in some cases, while correlation of either Borrelia or Chlamydiales with morphea is unlikely.

  2. Chancroid, lymphogranuloma venereum, granuloma inguinale, genital herpes simplex infection, and molluscum contagiosum.

    Science.gov (United States)

    Basta-Juzbašić, Aleksandra; Čeović, Romana

    2014-01-01

    Chancroid, lymphogranuloma venereum, and granuloma inguinale may be considered as tropical venereal diseases. These diseases were a major diagnostic and therapeutic challenge in past centuries. Currently, patients with these bacterial infections that are endemic to the tropics occasionally consult with dermatologists in temperate climates. Due to the increasing frequency of travel to the tropics for tourism and work, as well as the increasing number of immigrants from these areas, it is important for dermatologists practicing in temperate climates to be familiar with the dermatologic manifestations of such infections, to be prepared to diagnose these diseases, and to treat these patients. All three "tropical" infections respond well to prompt and appropriate antimicrobial treatment, although herpes progenitalis still cannot be cured, and the number of people infected keeps growing; moreover, genital herpes can be transmitted by viral shedding before and after the visual signs or symptoms. Acyclovir, valacyclovir, and famciclovir can shorten outbreaks and make them less severe or even stop them from happening. There is currently no etiologic treatment for molluscum contagiosum, and the majority of treatment options are mechanical, causing a certain degree of discomfort. The molluscum contagiosum virus, unlike the other infectious agents mentioned, does not invade the skin. © 2014 Elsevier Inc. All rights reserved.

  3. [The expression and significance of RORγT in periapical granulomas and radicular cysts].

    Science.gov (United States)

    Lang, Xiao-ying; Li, Song

    2014-08-01

    To identify retinoic acid-related orphan nuclear receptor-γT (RORγT), the specific markers of T helper 17 (Th17) cells by immunohistochemical analysis to confirm the presence of Th17 cells in periapical lesions. Eighteen radicular cysts (RCs) and 22 periapical granulomas (PGs) were collected in the Department of Oral Pathology after periapical surgery as the experimental samples. Five alveolar bone samples were obtained from a group of impacted third molars recommended for extraction as the control samples. The protein expression of RORγT was measured by immunohistochemical analysis for all samples. In addition, the protein expression of IL-17 was measured at the same time. Statistical analysis was performed using SPSS 17.0 software package to evaluate the differences of expression of RORγT and IL-17 according to type of lesion (PG vs. RC vs. control group) and intensity of the inflammatory infiltration (mild vs. moderate vs. severe vs. control group). RORγT+ cells were detected in all periapical lesions tissues, and the expression of RORγT was significantly higher in periapical lesions than in normal tissues which had no expression of RORγT (Pperiapical lesions in comparison with normal control subjects, indicating that Th17 cells are more likely to exist in periapical lesions.

  4. T lymphocyte activation and cytokine expression in periapical granulomas and radicular cysts.

    Science.gov (United States)

    Ihan Hren, N; Ihan, A

    2009-02-01

    Radicular cysts (RCs) are periapical lesions resulting in jaw bone destruction. The inflammatory dental periapical granuloma (PG) is considered to be the origin of RC formation; however the mechanism of RC development remains unclear. Cell suspension from the surgically extirpated tissue of 27 RCs and 25 PGs was obtained. Bacteriological analysis of the PG tissue samples was performed in order to define two major groups of PG according to the prevailing causative bacterial infection: the streptococcal PG (PG-S, n=10) and the anaerobe PG (PG-A, n=9) group. The inflammatory response of tissue infiltrating lymphocytes was assessed by following T lymphocyte activation (HLA-DR expression) as well as interferon gamma (IFN-gamma) and interleukin 4 (IL-4) production which were evaluated by the flow cytometry. In comparison to RC both types of PG contained a higher proportion of activated T cells (HLA-DR) and lower proportion of IL-4 producing cells. PG-A tissue contained increased percentage of CD3 cells and increased percentage of T helper 1 (Th1) cells in comparison with PG-S. In RC the IFN-gamma production is higher than in streptococcal PG-S but similar as in PG-A. Tissue infiltration by Th2 cells and IL-4 production is likely to play an etiopathogenic role in RC formation.

  5. Central Giant Cell Granuloma of Posterior Maxilla: First Expression of Primary Hyperparathyroidism

    Directory of Open Access Journals (Sweden)

    Deepanshu Gulati

    2015-01-01

    Full Text Available A case of 19-year-old male patient reported with the chief complaint of slowly growing diffuse painless swelling over the right part of the face from last 6 months. Intraoral examination revealed a swelling on right side of palate in relation to molar region with buccal cortical plate expansion. Radiographic examination (orthopantograph and 3DCT showed large multilocular radiolucency in right maxilla with generalized loss of lamina dura. Incisional biopsy was done and specimen was sent for histopathological examination which showed multinucleated giant cells containing 15–30 nuclei. Based on clinical, radiological, and histopathological findings provisional diagnosis of central giant cell granuloma was made. Blood tests after histopathology demonstrated elevated serum calcium level and alkaline phosphatase level. Immunoassay of parathyroid hormone (PTH level was found to be highly elevated. Radiographic examination of long bones like humerus and femur, mandible, and skull was also done which showed osteoclastic lesions. Considering the clinical, radiographic, histopathological, and blood investigation findings, final diagnosis of brown tumour of maxilla was made. The patient underwent partial parathyroidectomy under general anaesthesia to control primary hyperparathyroidism. Surgical removal of the bony lesion was done by curettage. The patient has been followed up for 1 year with no postoperative complications and the lesion healed uneventfully.

  6. Bilateral meandering pulmonary veins

    Energy Technology Data Exchange (ETDEWEB)

    Thupili, Chakradhar R.; Udayasankar, Unni [Pediatric Imaging, Imaging Institute Cleveland Clinic, Cleveland, OH (United States); Renapurkar, Rahul [Imaging Institute Cleveland Clinic, Thoracic Imaging, L10, Cleveland, OH (United States)

    2015-06-15

    Meandering pulmonary veins is a rare clinical entity that can be mistaken for more complex congenital syndromes such as hypogenetic lung syndrome. We report imaging findings in a rare incidentally detected case of bilateral meandering pulmonary veins. We briefly discuss the role of imaging in diagnosing this condition, with particular emphasis on contrast-enhanced CT. (orig.)

  7. pulmonary tuberculosis, jimma hospital

    African Journals Online (AJOL)

    and National Tuberculosis and Leprosy Control Program manual. RESULTS: A total of 112 extra pulmonary ... Key words: Clinical audit; extra pulmonary Tuberculosis; National Tuberculosis and. Leprosy Control manual. "Addis Ababa ..... intern influence drug regimen selection. Compliance to the 1997 NTLCP inanual is.

  8. Pulmonary artery aneurysm

    African Journals Online (AJOL)

    Enrique

    Introduction. Pulmonary artery aneurysms are a rare finding in general radiological practice. The possible causes are myriad and diverse in pathophysiolo- gy. Patients with post-stenotic dilata- tion of the main pulmonary artery usually present fairly late with insidi- ous cardiorespiratory symptoms. Diagnosis requires ...

  9. Pulmonary hypertension CT imaging

    International Nuclear Information System (INIS)

    Nedevska, A.

    2013-01-01

    Full text: The right heart catheterization is the gold standard in the diagnosis and determines the severity of pulmonary hypertension. The significant technical progress of noninvasive diagnostic imaging methods significantly improves the pixel density and spatial resolution in the study of cardiovascular structures, thus changes their role and place in the overall diagnostic plan. Learning points: What is the etiology, clinical manifestation and general pathophysiological disorders in pulmonary hypertension. What are the established diagnostic methods in the diagnosis and follow-up of patients with pulmonary hypertension. What is the recommended protocol for CT scanning for patients with clinically suspected or documented pulmonary hypertension. What are the important diagnostic findings in CT scan of a patient with pulmonary hypertension. Discussion: The prospect of instantaneous complex - anatomical and functional cardiopulmonary and vascular diagnostics seems extremely attractive. The contrast enhanced multislice computed (CT ) and magnetic resonance imaging are very suitable methods for imaging the structures of the right heart, with the possibility of obtaining multiple projections and three-dimensional imaging reconstructions . There are specific morphological features that, if carefully analyzed, provide diagnostic information. Thus, it is possible to avoid or at least reduce the frequency of use of invasive diagnostic cardiac catheterization in patients with pulmonary hypertension. Conclusion: This review focuses on the use of contrast-enhanced CT for comprehensive evaluation of patients with pulmonary hypertension and presents the observed characteristic changes in the chest, lung parenchyma , the structures of the right half of the heart and pulmonary vessels

  10. Hyalinizing trabecular tumor of the thyroid: Diagnosed of a rare tumor using ultrasonography, cytology, and intraoperative frozen sections

    Energy Technology Data Exchange (ETDEWEB)

    Jang, Hyun Sik; Kim, Eun Kyung; Kwak, Jin Young; Moon, Hee Jung; Yoon, Jung Hyun [Dept. of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University, College of Medicine, Seoul (Korea, Republic of); Park, Cheol Keun; Son, Eun Ju [Gangnam Severance Hospital, Yonsei University, College of Medicine, Seoul (Korea, Republic of)

    2016-03-15

    The goal of this study was to evaluate the clinicopathological and imaging features of thyroid nodules surgically diagnosed as hyaline trabecular tumor (HTT), and to assess the role of cytology and frozen sections (FS) in the diagnosis of HTT. This study included 21 thyroid nodules in 21 patients treated from August 2005 to March 2015 (mean age, 53.3 years) who were either diagnosed as HTT or had HTT suggested as a possible diagnosis based on cytology, FS, or the final pathology report. Patients' medical records were retrospectively reviewed for cytopathologic results and outcomes during the course of follow-up. Sonograms were reviewed and categorized. Twelve nodules from 12 patients were surgically confirmed as HTT. Ultrasonography (US)-guided fine needle aspiration (FNA) was performed on 11 nodules, of which six (54.5%) were papillary thyroid carcinoma (PTC) or suspicious for PTC and three (27.3%) were HTT or suspicious for HTT. Intraoperative FS suggested the possibility of HTT in seven nodules, of which four (57.1%) were confirmed as HTT. US-FNA suggested the diagnosis of HTT in 10 nodules, of which three (30.0%) were confirmed as HTT. Common US features of the 12 pathologically confirmed cases of HTT were hypoechogenicity or marked hypoechogenicity (83.4%), absence of calcifications (91.7%), parallel shape (100.0%), presence of vascularity (75.0%), and probable benignity (58.3%). HTT should be included in the differential diagnosis of solid tumors with hypoechogenicity or marked hypoechogenicity and otherwise benign US features that have been diagnosed as PTC through cytology.

  11. Hyaline cartilage calcification of the first metatarsophalangeal joint is associated with osteoarthritis but independent of age and BMI.

    Science.gov (United States)

    Hubert, Jan; Hawellek, Thelonius; Hischke, Sandra; Bertrand, Jessica; Krause, Matthias; Püschel, Klaus; Rüther, Wolfgang; Niemeier, Andreas

    2016-11-15

    Hyaline cartilage calcification (CC) is associated with osteoarthritis (OA) in hip and knee joints. The first metatarsophalangeal joint (1 st MTPJ) is frequently affected by OA, but it is unclear if CC occurs in the 1 st MTPJ. The aim of the present study was to analyze the prevalence of CC of the 1 st MTPJ in the general population by high-resolution digital contact radiography (DCR) and to determine its association with histological OA severity, age and body mass index (BMI). 168 metatarsal heads of 84 donors (n = 47 male, n = 37 female; mean age 62.73 years, SD ±18.8, range 20-93) were analyzed by DCR for the presence of CC. Histological OA grade (hOA) by OARSI was analyzed in the central load-bearing zone of the first metatarsal head (1 st MH). Structural equation modeling (SEM) was performed to analyze the interrelationship between CC, hOA, age and BMI. The prevalence of CC of 1 st MH was 48.8 % (41/84) (95 %-CI [37.7 %, 60.0 %]), independent of the affected side (p = 0.42), gender (p = 0.41) and BMI (p = 0.51). The mean amount of CC of one MH correlated significantly with that of the contralateral side (r s  = 0.4, 95 %-CI [0.26, 0.52], p cartilage area) of the MH correlated significantly with the severity of hOA (r s  = 0.51, 95 %-CI [0.32, 0.65], p studies.

  12. Hyalinizing trabecular tumor of the thyroid: Diagnosed of a rare tumor using ultrasonography, cytology, and intraoperative frozen sections

    International Nuclear Information System (INIS)

    Jang, Hyun Sik; Kim, Eun Kyung; Kwak, Jin Young; Moon, Hee Jung; Yoon, Jung Hyun; Park, Cheol Keun; Son, Eun Ju

    2016-01-01

    The goal of this study was to evaluate the clinicopathological and imaging features of thyroid nodules surgically diagnosed as hyaline trabecular tumor (HTT), and to assess the role of cytology and frozen sections (FS) in the diagnosis of HTT. This study included 21 thyroid nodules in 21 patients treated from August 2005 to March 2015 (mean age, 53.3 years) who were either diagnosed as HTT or had HTT suggested as a possible diagnosis based on cytology, FS, or the final pathology report. Patients' medical records were retrospectively reviewed for cytopathologic results and outcomes during the course of follow-up. Sonograms were reviewed and categorized. Twelve nodules from 12 patients were surgically confirmed as HTT. Ultrasonography (US)-guided fine needle aspiration (FNA) was performed on 11 nodules, of which six (54.5%) were papillary thyroid carcinoma (PTC) or suspicious for PTC and three (27.3%) were HTT or suspicious for HTT. Intraoperative FS suggested the possibility of HTT in seven nodules, of which four (57.1%) were confirmed as HTT. US-FNA suggested the diagnosis of HTT in 10 nodules, of which three (30.0%) were confirmed as HTT. Common US features of the 12 pathologically confirmed cases of HTT were hypoechogenicity or marked hypoechogenicity (83.4%), absence of calcifications (91.7%), parallel shape (100.0%), presence of vascularity (75.0%), and probable benignity (58.3%). HTT should be included in the differential diagnosis of solid tumors with hypoechogenicity or marked hypoechogenicity and otherwise benign US features that have been diagnosed as PTC through cytology

  13. Osteochondral lesions in distal tarsal joints of Icelandic horses reveal strong associations between hyaline and calcified cartilage abnormalities

    Directory of Open Access Journals (Sweden)

    CJ Ley

    2014-03-01

    Full Text Available Osteochondral lesions in the joints of the distal tarsal region of young Icelandic horses provide a natural model for the early stages of osteoarthritis (OA in low-motion joints. We describe and characterise mineralised and non-mineralised osteochondral lesions in left distal tarsal region joint specimens from twenty-two 30 ±1 month-old Icelandic horses. Combinations of confocal scanning light microscopy, backscattered electron scanning electron microscopy (including, importantly, iodine staining and three-dimensional microcomputed tomography were used on specimens obtained with guidance from clinical imaging. Lesion-types were described and classified into groups according to morphological features. Their locations in the hyaline articular cartilage (HAC, articular calcified cartilage (ACC, subchondral bone (SCB and the joint margin tissues were identified and their frequency in the joints recorded. Associations and correlations between lesion-types were investigated for centrodistal joints only. In centrodistal joints the lesion-types HAC chondrocyte loss, HAC fibrillation, HAC central chondrocyte clusters, ACC arrest and ACC advance had significant associations and strong correlations. These lesion-types had moderate to high frequency in centrodistal joints but low frequencies in tarsometatarsal and talocalcaneal-centroquartal joints. Joint margin lesion-types had no significant associations with other lesion-types in the centrodistal joints but high frequency in both the centrodistal and tarsometatarsal joints. The frequency of SCB lesion-types in all joints was low. Hypermineralised infill phase lesion-types were detected. Our results emphasise close associations between HAC and ACC lesions in equine centrodistal joints and the importance of ACC lesions in the development of OA in low-motion compression-loaded equine joints.

  14. Osteochondral lesions in distal tarsal joints of Icelandic horses reveal strong associations between hyaline and calcified cartilage abnormalities.

    Science.gov (United States)

    Ley, C J; Ekman, S; Hansson, K; Björnsdóttir, S; Boyde, A

    2014-03-25

    Osteochondral lesions in the joints of the distal tarsal region of young Icelandic horses provide a natural model for the early stages of osteoarthritis (OA) in low-motion joints. We describe and characterise mineralised and non-mineralised osteochondral lesions in left distal tarsal region joint specimens from twenty-two 30 ±1 month-old Icelandic horses. Combinations of confocal scanning light microscopy, backscattered electron scanning electron microscopy (including, importantly, iodine staining) and three-dimensional microcomputed tomography were used on specimens obtained with guidance from clinical imaging. Lesion-types were described and classified into groups according to morphological features. Their locations in the hyaline articular cartilage (HAC), articular calcified cartilage (ACC), subchondral bone (SCB) and the joint margin tissues were identified and their frequency in the joints recorded. Associations and correlations between lesion-types were investigated for centrodistal joints only. In centrodistal joints the lesion-types HAC chondrocyte loss, HAC fibrillation, HAC central chondrocyte clusters, ACC arrest and ACC advance had significant associations and strong correlations. These lesion-types had moderate to high frequency in centrodistal joints but low frequencies in tarsometatarsal and talocalcaneal-centroquartal joints. Joint margin lesion-types had no significant associations with other lesion-types in the centrodistal joints but high frequency in both the centrodistal and tarsometatarsal joints. The frequency of SCB lesion-types in all joints was low. Hypermineralised infill phase lesion-types were detected. Our results emphasise close associations between HAC and ACC lesions in equine centrodistal joints and the importance of ACC lesions in the development of OA in low-motion compression-loaded equine joints.

  15. Dynamic {sup 11}C-methionine PET analysis has an additional value for differentiating malignant tumors from granulomas: an experimental study using small animal PET

    Energy Technology Data Exchange (ETDEWEB)

    Zhao, Songji; Zhao, Yan [Hokkaido University, Department of Nuclear Medicine, Graduate School of Medicine, Sapporo (Japan); Hokkaido University, Department of Tracer Kinetics and Bioanalysis, Graduate School of Medicine, Sapporo (Japan); Kuge, Yuji; Hatano, Toshiyuki [Hokkaido University, Central Institute of Isotope Science, Sapporo (Japan); Yi, Min; Kohanawa, Masashi [Hokkaido University, Department of Advanced Medicine, Graduate School of Medicine, Sapporo (Japan); Magota, Keiichi; Tamaki, Nagara [Hokkaido University, Department of Nuclear Medicine, Graduate School of Medicine, Sapporo (Japan); Nishijima, Ken-ichi [Hokkaido University, Department of Molecular Imaging, Graduate School of Medicine, Sapporo (Japan)

    2011-10-15

    We evaluated whether the dynamic profile of L-{sup 11}C-methionine ({sup 11}C-MET) may have an additional value in differentiating malignant tumors from granulomas in experimental rat models by small animal positron emission tomography (PET). Rhodococcus aurantiacus and allogenic rat C6 glioma cells were inoculated, respectively, into the right and left calf muscles to generate a rat model bearing both granulomas and tumors (n = 6). Ten days after the inoculations, dynamic {sup 11}C-MET PET was performed by small animal PET up to 120 min after injection of {sup 11}C-MET. The next day, after overnight fasting, the rats were injected with {sup 18}F-2-deoxy-2-fluoro-D-glucose ({sup 18}F-FDG), and dynamic {sup 18}F-FDG PET was performed up to 180 min. The time-activity curves, static images, and mean standardized uptake value (SUV) in the lesions were calculated. {sup 11}C-MET uptake in the granuloma showed a slow exponential clearance after an initial distribution, while the uptake in the tumor gradually increased with time. The dynamic pattern of {sup 11}C-MET uptake in the granuloma was significantly different from that in the tumor (p < 0.001). In the static analysis of {sup 11}C-MET, visual assessment and SUV analysis could not differentiate the tumor from the granuloma in all cases, although the mean SUV in the granuloma (1.48 {+-} 0.09) was significantly lower than that in the tumor (1.72 {+-} 0.18, p < 0.01). The dynamic patterns, static images, and mean SUVs of {sup 18}F-FDG in the granuloma were similar to those in the tumor (p = NS). Dynamic {sup 11}C-MET PET has an additional value for differentiating malignant tumors from granulomatous lesions, which deserves further elucidation in clinical settings. (orig.)

  16. Dynamic 11C-methionine PET analysis has an additional value for differentiating malignant tumors from granulomas: an experimental study using small animal PET

    International Nuclear Information System (INIS)

    Zhao, Songji; Zhao, Yan; Kuge, Yuji; Hatano, Toshiyuki; Yi, Min; Kohanawa, Masashi; Magota, Keiichi; Tamaki, Nagara; Nishijima, Ken-ichi

    2011-01-01

    We evaluated whether the dynamic profile of L- 11 C-methionine ( 11 C-MET) may have an additional value in differentiating malignant tumors from granulomas in experimental rat models by small animal positron emission tomography (PET). Rhodococcus aurantiacus and allogenic rat C6 glioma cells were inoculated, respectively, into the right and left calf muscles to generate a rat model bearing both granulomas and tumors (n = 6). Ten days after the inoculations, dynamic 11 C-MET PET was performed by small animal PET up to 120 min after injection of 11 C-MET. The next day, after overnight fasting, the rats were injected with 18 F-2-deoxy-2-fluoro-D-glucose ( 18 F-FDG), and dynamic 18 F-FDG PET was performed up to 180 min. The time-activity curves, static images, and mean standardized uptake value (SUV) in the lesions were calculated. 11 C-MET uptake in the granuloma showed a slow exponential clearance after an initial distribution, while the uptake in the tumor gradually increased with time. The dynamic pattern of 11 C-MET uptake in the granuloma was significantly different from that in the tumor (p 11 C-MET, visual assessment and SUV analysis could not differentiate the tumor from the granuloma in all cases, although the mean SUV in the granuloma (1.48 ± 0.09) was significantly lower than that in the tumor (1.72 ± 0.18, p 18 F-FDG in the granuloma were similar to those in the tumor (p = NS). Dynamic 11 C-MET PET has an additional value for differentiating malignant tumors from granulomatous lesions, which deserves further elucidation in clinical settings. (orig.)

  17. Pulmonary capillary haemangiomatosis: a rare cause of pulmonary hypertension.

    Science.gov (United States)

    Babu, K Anand; Supraja, K; Singh, Raj B

    2014-01-01

    Pulmonary capillary haemangiomatosis (PCH) is a rare disorder of unknown aetiology, characterised by proliferating capillaries that invade the pulmonary interstitium, alveolar septae and the pulmonary vasculature. It is often mis-diagnosed as primary pulmonary hypertension and pulmonary veno-occlusive disease. Pulmonary capillary haemangiomatosis is a locally aggressive benign vascular neoplasm of the lung. We report the case of a 19-year-old female who was referred to us in the early post-partum period with severe pulmonary artery hypertension, which was diagnosed as PCH by open lung biopsy.

  18. A case of relapsed lung abscess caused by Eubacterium brachy infection following an initial diagnosis of pulmonary actinomycosis

    Directory of Open Access Journals (Sweden)

    Hideaki Yamakawa

    2017-01-01

    Full Text Available We report a rare case of lung abscess due to Eubacterium brachy. In this case, an analysis of the aspirate from frank pus revealed Gram-positive coccobacilli. We initially strongly suspected lung abscess associated with actinomycosis because of the chronic/recurrent clinical course and radio-pathological findings such as a granuloma lesion. Although a biochemical analysis revealed Actinomyces sp., 16S rRNA gene sequencing and a phylogenetic tree analysis of the isolated strain confirmed the presence of E. brachy. Some cases previously diagnosed as actinomycosis might be correctly diagnosed as E. brachy infection. Clinicians should be aware that additional studies using 16S rRNA gene sequencing are needed to clarify whether pulmonary infection associated with E. brachy is a similar entity to that of chronic granulomatous infection disease in pulmonary actinomycosis.

  19. Subchondral chitosan/blood implant-guided bone plate resorption and woven bone repair is coupled to hyaline cartilage regeneration from microdrill holes in aged rabbit knees.

    Science.gov (United States)

    Guzmán-Morales, J; Lafantaisie-Favreau, C-H; Chen, G; Hoemann, C D

    2014-02-01

    Little is known of how to routinely elicit hyaline cartilage repair tissue in middle-aged patients. We tested the hypothesis that in skeletally aged rabbit knees, microdrill holes can be stimulated to remodel the bone plate and induce a more integrated, voluminous and hyaline cartilage repair tissue when treated by subchondral chitosan/blood implants. New Zealand White rabbits (13 or 32 months old, N = 7) received two 1.5 mm diameter, 2 mm depth drill holes in each knee, either left to bleed as surgical controls or press-fit with a 10 kDa (distal hole: 10K) or 40 kDa (proximal hole: 40K) chitosan/blood implant with fluorescent chitosan tracer. Post-operative knee effusion was documented. Repair tissues at day 0 (N = 1) and day 70 post-surgery (N = 6) were analyzed by micro-computed tomography, and by histological scoring and histomorphometry (SafO, Col-2, and Col-1) at day 70. All chitosan implants were completely cleared after 70 days, without increasing transient post-operative knee effusion compared to controls. Proximal control holes had worse osteochondral repair than distal holes. Both implant formulations induced bone remodeling and improved lateral integration of the bone plate at the hole edge. The 40K implant inhibited further bone repair inside 50% of the proximal holes, while the 10K implant specifically induced a "wound bloom" reaction, characterized by decreased bone plate density in a limited zone beyond the initial hole edge, and increased woven bone (WB) plate repair inside the initial hole (P = 0.016), which was accompanied by a more voluminous and hyaline cartilage repair (P holes with a biodegradable subchondral implant that elicits bone plate resorption followed by anabolic WB repair within a 70-day repair period. Copyright © 2013 Osteoarthritis Research Society International. Published by Elsevier Ltd. All rights reserved.

  20. Spontaneous hyaline cartilage regeneration can be induced in an osteochondral defect created in the femoral condyle using a novel double-network hydrogel.

    Science.gov (United States)

    Yokota, Masashi; Yasuda, Kazunori; Kitamura, Nobuto; Arakaki, Kazunobu; Onodera, Shin; Kurokawa, Takayuki; Gong, Jian-Ping

    2011-02-22

    Functional repair of articular osteochondral defects remains a major challenge not only in the field of knee surgery but also in tissue regeneration medicine. The purpose is to clarify whether the spontaneous hyaline cartilage regeneration can be induced in a large osteochondral defect created in the femoral condyle by means of implanting a novel double-network (DN) gel at the bottom of the defect. Twenty-five mature rabbits were used in this study. In the bilateral knees of each animal, we created an osteochondral defect having a diameter of 2.4-mm in the medial condyle. Then, in 21 rabbits, we implanted a DN gel plug into a right knee defect so that a vacant space of 1.5-mm depth (in Group I), 2.5-mm depth (in Group II), or 3.5-mm depth (in Group III) was left. In the left knee, we did not apply any treatment to the defect to obtain the control data. All the rabbits were sacrificed at 4 weeks, and the gross and histological evaluations were performed. The remaining 4 rabbits underwent the same treatment as used in Group II, and real-time PCR analysis was performed at 4 weeks. The defect in Group II was filled with a sufficient volume of the hyaline cartilage tissue rich in proteoglycan and type-2 collagen. The Wayne's gross appearance and histology scores showed that Group II was significantly greater than Group I, III, and Control (p hyaline cartilage regeneration can be induced in vivo in an osteochondral defect created in the femoral condyle by means of implanting the DN gel plug at the bottom of the defect so that an approximately 2-mm deep vacant space was intentionally left in the defect. This fact has prompted us to propose an innovative strategy without cell culture to repair osteochondral lesions in the femoral condyle.