Female urethral diverticulum presenting with acute urinary retention: Reporting the largest diverticulum with review of literature

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Manas Ranjan Pradhan

2012-01-01

Full Text Available Female urethral diverticulum is a rare entity with diverse spectrum of clinical manifestations. It is a very rare cause of bladder outlet obstruction and should be considered as a differential diagnosis in females presenting with acute urinary retention associated with a vaginal mass. Strong clinical suspicion combined with thorough physical examination and focused radiological investigations are vital for its diagnosis. Herein we report a case of giant urethral diverticulum presenting with acute urinary retention in a young female. It was managed by excision and urethral closure, and is the largest urethral diverticulum reported till date in the literature.

Ureteric diverticulum: A diagnostic challenge

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Rahul Kumar Gupta

2017-11-01

Full Text Available Ureteric diverticulum is a rare urological condition with only 47 cases described in the literature till 2013. A full term female infant presented with a huge cystic lump occupying almost the entire right side of the abdomen at 1 month of age. Ultrasonography and Magnetic Resonance Urography (MRU revealed right sided gross hydronephrosis with pelvis appeared folded onto itself along with left sided mild hydronephrosis. On EC scan, differential function of right sided kidney was 0.9%. With working diagnosis of right sided giant hydronephrosis secondary to pelviureteric junction obstruction, the child was posted for Anderson - Hynes pyeloplasty through right flank incision. On exploration we were surprised to find ureteric diverticula. Excision of ureteric diverticulum with proximal ureterostomy was done. Distal part of ureter was transfixed. Histopathological examination of diverticulum showed presence of fibromuscular wall suggestive of true diverticulum. Since ureterostomy was draining only few drops of clear fluid and on repeat EC scan there was no improvement in function of right kidney, right nephroureterectomy was done after 6 months.

A rare case of giant urethral calculus and multiple urethral diverticulum

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A Agarwal

2012-09-01

Full Text Available Urethral stones in adults are rare and usually encountered with urethral stricture or diverticulum. We report a 54 years old gentleman who presented with urinary retention due to a large urethral calculus impacted in bulbar urethra with multiple stones in anterior and posterior urethral diverticulum. On examination a mass of size 5.5cmx4cmx3cm was palpable at anterior perineum with a fistulous tract from which pus was oozing out. On retrograde urethrogram a large urethral calculus with bulbar diverticulum and multiple radio opacity in prostatic area were revealed. Patient was managed by suprapubic cystostomy initially and later on by external urethrotomy, diverticulectomy, urethroscopic removal of multiple stones in prostatic urethral diverticulum and urethroplasty. Journal of College of Medical Sciences-Nepal,2012,Vol-8,No-2, 46-48 DOI: http://dx.doi.org/10.3126/jcmsn.v8i2.6838

Technical note: Dynamic MRI in a complicated giant posterior urethral diverticulum

International Nuclear Information System (INIS)

Kundum, Prasad R; Gupta, Arun K; Thottom, Prasad V; Jana, Manisha

2010-01-01

Congenital posterior urethral diverticulum is an uncommon anomaly, sometimes complicated by infection or calculi formation. A conventional voiding cystourethrogram (VCUG) is the most commonly used diagnostic modality. Dynamic magnetic resonance imaging (MRI) has not been frequently described in this entity. We describe a case of posterior urethral diverticulum complicated with secondary calculi, where the patient was evaluated using dynamic MRI and conventional VCUG

A perforated diverticulum in Cushing's disease

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de Havenon, Adam; Ehrenkranz, Joel

2011-01-01

We report a case of perforated colonic diverticulum in Cushing's disease. Although perforated diverticuli have been described in patients with Cushing's syndrome secondary to exogenous glucocorticoids, this complication has not been described in patients with Cushing's disease. Patients with hypercortisolism, from either exogenous or endogenous sources, should be monitored for diverticular perforation.

Necrotic Meckel's diverticulum

International Nuclear Information System (INIS)

Gonzalez Sosa, Gabriel; Diaz Mesa, Julio; Collera Rodriguez, Simeon Antonio

2010-01-01

This is the case presentation of a patient treated in Emergency Department in March 2007 presenting with a clinical picture of surgical acute abdomen and operated on due to complicated acute appendicitis. At transoperative period presence of a Meckel's diverticulum was verified that initially becomes inflamed (acute diverticulitis) and later process evolved until necrosis affecting the blood stream of an intestinal segment in terminal ileum, cecum ant the lower third of ascending colon. Appendix was not altered and a hemicholectomy was performed. Patient had a favorable course and was discharged at 10 days. (author)

Ultrasonographic findings of right-side colonic diverticulitis: Correlation with pathologic findings

International Nuclear Information System (INIS)

Yoon, Hoi Soo; Kim, Young Hoon; Kim, Joung Sook; Cho, Woo Ho; Lim, Sung Jig; Lee, Jin Ho; Kim, Young Duk; Cha, Soon Joo

2002-01-01

To evaluate ultrasonographic (US) findings of right-side colonic diverticulitis and to correlate them with pathologic findings. Twenty nine patients with surgically (n=7) and radiographically (n=8) proven diverticulitis in the cecum and ascending colon for the past five years were included in this study, and they all underwent US due to right lower quadrant abdominal pain. US findings were analyzed by two radiologists with a special emphasis on: (1) the presence, size, and internal echo of hypoechoic lesion bulging out from the colonic wall (thickened diverticulum), (2) changes in the adjacent cecum and ascending colon, (3) changes in the adjacent mesentery, (4) accompanying fluid collection, and (5) the presence of lymphadenopathy. US finding of 18 surgically proven patients were correlated with pathologic findings. On US, 25 of 29 patients (86.2%0 were found to have thicken diverticulum with the greater dimension of 8-20 mm (mean,, 12 mm). Wall thickening of the adjacent cecum and ascending colon was seen in 28 patients (96.5%), and 22 (75.9%) of them had eccentrically thickened wall. Comparing US findings with pathologic findings in 18 surgically proven patients, all revealed to have inflamed diverticulum on surgery, but only 15 showed thickened diverticulum on US. In 12 patients, fecalith, purulent exudates, and hemorrhage were found within diverticulum on surgery. In case of diverticulitis containing fecalith, all of their echogenecities were increased. All patients showed wall thickening of the adjacent colon and increased echogenecity of the adjacent mesentery on US. Pathologic findings of these thickened walls contained nonspecific inflammatory change and hemorrhage while the mesentery with an increased echogenecity contained purulent or hemorrhagic exudates. Ultrasonography can diagnose the right-side colonic diverticulitis when there is the presence of thickened diverticulum in the area with the thickened right side colonic wall in patients with right

Invaginated meckel's diverticulum: A rare cause of small intestine intussusception in adults

International Nuclear Information System (INIS)

Rana, N. A.; Rathore, M. O.; Khan, M. U.

2013-01-01

Intussusception is commonly seen in infants. It is occasionally found in adults usually due to carcinomas, colonic diverticuli, polyps and rarely Meckel's diverticulum. An adult male presented with upper abdominal pain, nausea, anorexia and loose stools. The initial investigative workup was unremarkable and patient responded to treatment given for acute gastroenteritis. After 3 days, the pain recurred in right iliac fossa with rebound tenderness and leukocytosis. Surgery was performed with provisional diagnoses of acute appendicitis and/or acute Meckel's diverticulitis. Per-operative findings revealed invaginated Meckel's diverticulum causing non-obstructing intussusception. (author)

Angiodysplasia in gaint diverticulum of transverse duodenum causing massive gastrointestinal bleeding: a case report

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Choi, Pil Yeob; Lee, Sang Wook; Kwon, Jae Soo; Sung, Young Soon; Rho, Myoung Ho; Hwon, Oh Joon [Sungkyunkwan Univ. College of Medicine, Seoul (Korea, Republic of)

1998-12-01

The incidence of duodenal diverticulum found incidentally during upper gastrointestinal roentgenographic examination varies between 2% and 5%. The majority of cases occur along the medial aspect of the second portion of the duodenum, within 2.5 cm of the ampulla of Vater. The majority of duodenal diverticual are asymptomatic, but in some cases, complications such as diverticulitis, hemorrhage, perforation, and fistula formation occur in the third and fourth portions of the duodenum. We describe a case of giant diverticulum of the transverse duodenum, revealed by UGI and angiography, massive gastrointestinal bleeding in a 80-year-old patient.=20.

Laparoscopy in the treatment of a giant true epiphrenic diverticulum with migration of the gastrointestinal anastomosis staples

International Nuclear Information System (INIS)

AbuDaff, Nasr S.; AbuDaff, Saleh N.; Rubayaan, Abdulrahman; AbuShaaban, Azam

2009-01-01

Our case is a 62-year-old diabetic man with a long-standing history of regurgitation, halitosis, recurrent chest infection, and most recently upper gastro-intestinal bleeding. He was diagnosed 10 years earlier with an epiphrenic esophageal diverticulum, and also has a family history of this condition. Barium study revealed a 10x10 cm epiphrenic diverticula with a 4 cm neck, the lower margin of the opening lying 6 cm from the gastro-esophageal junction. Endoscopy confirmed the x-ray findings, and motility studies were within normal limits. The patient underwent laparoscopic excision of the diverticulum via the trans-abdominal approach. Histopathological examination revealed this diverticulum to be of the true type. (author)

Perforated Meckel's diverticulum in omphalocele

OpenAIRE

Jin, Hanna; Han, Ji-Won; Oh, Chaeyoun; Kim, Hyun-Young; Jung, Sung-Eun

2017-01-01

Meckel's diverticulum is a rare condition in neonates with reports of concurrent Meckel's diverticulum and omphalocele being few. Herein, we present a case of omphalocele associated with perforated Meckel's diverticulum.

Perforated Meckel's diverticulum in omphalocele

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Hanna Jin

2017-02-01

Full Text Available Meckel's diverticulum is a rare condition in neonates with reports of concurrent Meckel's diverticulum and omphalocele being few. Herein, we present a case of omphalocele associated with perforated Meckel's diverticulum.

Urethral diverticulum in pregnancy

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Qiao-Xuan Xie

2015-05-01

Full Text Available Urethral diverticulum is rare in pregnancy. There is no clear guideline on the management of urethral diverticulum in pregnancy, but most cases were managed conservatively. We report a case of urethral diverticulum in a primigravida woman, who presented with anterior vaginal swelling at 14 weeks of gestation. She was managed conservatively and the cyst (approximately 8 cm × 13 cm was aspirated during the early stage of labor. However her labor did not progress during the second stage, which resulted in an emergency cesarean section. She underwent diverticulectomy at 1 month postpartum because of the recurrence of the swelling and persistent discomfort. We believe that her dystocia may have been caused by factors other than the diverticulum. As previously described in literature, we concluded that, even in pregnant women with a large urethral diverticulum, vaginal delivery can still be considered with prior aspiration during the early stage of labor.

Unusual roentgenologic manifestations of Meckel's diverticulum

International Nuclear Information System (INIS)

Miller, K.B.; Naimark, A.; O'Connor, J.F.; Bouras, L.

1981-01-01

Five cases illustrating rare roentgenographic manifestations of Meckel's diverticulum are presented. Small bowel studies in 2 patients demonstrated a mucosal pattern identifiable as heterotopic gastric rugae, and in 2 other cases peptic ulcers were seen within the diverticulum. In 1 patient the diverticulum located in the right upper quadrant contained calcified enteroliths, and in another patient the diverticulum had fistulous communication with the appendix. (orig.)

A rare complication of Meckel's diverticulum: A fistula between Meckel's diverticulum and the appendix

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Ping-Fu Yang

2012-10-01

Full Text Available Meckel diverticulum is the most common congenital anomaly of the small intestine, occurring in about 2%–4% of the population. Meckel diverticulum results from incomplete closure of the omphalomesenteric duct. The presentation of symptomatic Meckel diverticulum includes gastrointestinal hemorrhage, intestinal obstruction, volvulus, intussusception, diverticulitis, and neoplasms. The development of fistula is an extremely rare complication. Previous literature has even shown an enterocolonic fistula, a vesicodiverticular fistula, ileorectal fistula, and fistula-in-ano. To the best of our knowledge, we present the first case of the fistula complicated between Meckel diverticulum and the appendix in a review of the English literature.

The jugular bulb diverticulum

International Nuclear Information System (INIS)

Wadin, K.; Wilbrand, H.

1986-01-01

Two hundred and forty-five temporal bone specimens were examined radiographically. Subsequently the topographic relationship between the jugular fossa and surrounding structures was evaluated in plastic casts of the specimens. Fifty-eight casts showed a high jugular fossa and in 17 a jugular bulb diverticulum was found. A diverticulum is regarded as an anomaly of the high jugular bulb and presumably has a potential for expansion. Most frequently a diverticulum was directed medially into the space between the internal acoustic meatus, the vestibular aqueduct and the posterior cranial fossa. Seven diverticula reached the level of the internal acoustic meatus. Encroachment upon the vestibular aqueduct was seen in 4 casts and both the internal acoustic meatus and the cochlear aqueduct were very close to the diverticulum. A few diverticula were directed postero-laterally close to the facial canal and the stapedius muscle. The investigation was supplemented with a selected clinical material of radiographs of temporal bones with high fossae. The results corresponded to those of the experimental investigation. The jugular bulb diverticulum is a relatively common feature and should be regarded as an anomaly with a potential to give rise to clinical symptoms consequent to its intrusion upon surrounding structures. (orig.)

Meckel’s diverticulum manifested by a subcutaneous abscess

Science.gov (United States)

Karatepe, Oguzhan; Adas, Gokhan; Altıok, Merih; Ozcan, Deniz; Kamali, Sedat; Karahan, Servet

2009-01-01

This case report describes an extremely rare complication of a Meckel’s diverticulum: enterocutaneous fistula of the diverticulum. The presence of Meckel’s diverticulum is a well known entity, but subcutaneous perforation of the diverticulum is very rare. Here we report the case of a patient with the complaint of a right lower quadrant abscess, preoperatively diagnosed as enterocutaneous fistula, which was determined intraoperatively to be a fistula resulting from Meckel’s diverticulum. PMID:20027688

Zenker's diverticulum - diagnosis and therapy

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Heindel, W; Raab, M

1987-08-01

Clinical, X-ray and endoscopic follow-up of patients operated on for Zenker's diverticulum (pharyngo-oesophageal diverticulum) via myotomy and diverticulectomy permits conclusions in respect of functional results of this therapeutic concept and the preoperative diagnosis that our study has proved to be necessary. Usually the diagnosis can be made on the basis of the characteristic anamnesis. It is confirmed by means of an oesophagogram, if necessary with a gastrointestinal passage. Besides visualisation of Zenker's diverticulum, attention must be paid especially to associated neuromuscular functional disturbances of the oesophagus. Preoperative endoscopy is necessary in individual cases only. In respect of therapy, it appears mandatory to perform a sufficiently extended (3-5 cm) myotomy of the pars transversa musculi cricopharyngei because of the frequently seen disturbance of coordination of the pharyngo-oesophageal sphincter, besides removing the diverticulum.

Large Epiphrenic Diverticulum with Perforation and Leakage below the Diaphragm

DEFF Research Database (Denmark)

Brønserud, Majken Munk; Brenøe, Anne-Sofie; Eckardt, Jens

2015-01-01

contrast revealed contrast leakage near the minor curvature of the stomach. The following esophagogastroduodenoscopy demonstrated a giant dilatation of the esophagus, as well as a second esophageal lumen originating 25 cm from the incisors. The “false” lumen of the esophagus was located parallel...... to esophagus, ending blindly in a perforation below the diaphragm. The clinical presentation and the patient’s age make it most likely, that it was a long epiphrenic diverticulum of pulsion type. The patient was treated conservatively, discharged after 10 days and has been followed in our outpatient clinic...... for 8 months, until he died of aggressive pulmonary cancer....

Perforated Solitary Diverticulitis of the Ascending Colon

Science.gov (United States)

2005-06-01

postoperative day 6. DISCUSSION Diverticuli of the right colon exist in approximately 1% to 5% of patients with diverticular disease .1-3 They are...ORIGINAL REPORTS Perforated Solitary Diverticulitis of the Ascending Colon CPT David S. Kauvar, MC, USA, MAJ, Jayson Aydelotte, MC, USA, and MAJ...Michael Harnisch, MC, USA Department of Surgery, Brooke Army Medical Center, Fort Sam Houston, Texas KEY WORDS: solitary colon diverticulum

Transcervical diverticulectomy for Killian–Jamieson diverticulum

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Sze Li Siow

2017-07-01

Full Text Available Surgery for Killian–Jamieson diverticulum of the esophagus is scarcely reported in the literature owing to the rarity of this entity. This is a case report of such a diverticulum and a description of the transcervical diverticulectomy that we performed on a 49-year-old lady. The patient was investigated for symptoms of gastroesophageal reflux disease and was diagnosed with a left-sided Killian–Jamieson diverticulum.

Computed tomography (CT) of acute diverticulitis of the cecum and ascending colon; Computertomographie bei akuter rechtsseitiger Kolondivertikulitis

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Ferstl, F.J.; Obert, R. [St. Theresienkrankenhaus Nuernberg (DE). Radiologisch-Nuklearmedizinisches Zentrum (RNZ)

2004-09-01

Acute diverticulitis of the cecum and ascending colon, also called right-sided diverticulitis, represents a relatively rare disorder in the western hemisphere. Pseudodiverticula and, less frequently, solitary congenital diverticula are regarded as the underlying causes of acute diverticulitis. We report the helical CT findings in four patients with acute right-sided colonic diverticulitis. The CT was performed with a collimation of 8 mm, a pitch of 1.5 and an increment of 8 mm, and with variable administration of intravenous, oral and rectal contrast material. In two of the four patients, the acute diverticulitis was detected in the cecum and ascending colon, respectively. In two patients, the diagnosis could be confirmed during surgery and subsequent histologic examination of the resected specimen. On the initial CT studies, acute diverticulitis was correctly diagnosed in two patients and suspected in one patient without identifying and inflamed diverticulum. In one patient, the offending diverticulum in the ascending colon caused an inflammatory pseudotumor at the level of the ileocecal region. This process was initially mistaken as Crohn's disease. The CT diagnosis of a right-sided colonic diverticulitis is based on an inflamed diverticulum in the center of pericolic inflammatory changes and a preserved wall enhancement (target sign). Other CT findings, such as fatty pericolic infiltration and colon wall thickening, are rather non-specific and can also be found in a number of different ileocolic disorders, especially in colon cancer. In selected cases, the diagnosis can only be established by follow up CT after the pericolic infiltration has markedly subsided and an offending diverticulum has emerged. (orig.)

Female urethral diverticulum containing large calculi

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Shoichi Kimura

2018-05-01

Full Text Available Urinary stones in female urethral diverticulum are rarely seen. We report a 79-year-old woman who presented with irritative lower urinary tract symptoms and vaginal cystocele with incontinence. The urethral stones in the diverticulum were successfully extracted through the trans-urethral route and anterior tension-free vaginal mesh was applied one month later. The patient has been well, with no lower urinary symptoms or incontinence for 4 months. Keywords: Female, Urethral diverticulum, Incontinence, Calculus

The first reported pediatric case of Killian-Jamieson diverticulum

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Maryam Shambayati, DO

2017-07-01

Full Text Available Esophageal diverticulum is a rare but important cause of dysphagia in children. We present a case of a two year old female with dysphagia from six months of age. Her symptoms were refractory to acid suppressive and prokinetic therapies. Upper GI revealed an anterior proximal esophageal diverticulum consistent with Killian-Jamieson Diverticulum. This was confirmed with EGD and corrected with right cervical exploration with resection of the diverticulum. There are three types of esophageal diverticula based on location in the esophagus. Killian-Jamieson diverticulum is very rare, with less than 30 cases reported, all in the elderly. This is the first reported pediatric case of Killian-Jamieson diverticulum.

Giant Inflammatory Fibroid Polyp of the Hepatic Flexure of Colon Presenting with an Acute Abdomen

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Ashish Lal Shrestha

2016-01-01

Full Text Available Background. Inflammatory Fibroid Polyp (IFP of the colon is an exceedingly rare condition. Since 1952 till now only 32 cases have been reported worldwide of which only 5 were giant (>4 cm polyps mostly found in the caecum (15 cases with only 3 in the descending colon. Case Presentation. A 36-year-old female with no previous illness presented to the emergency unit with an acute onset pain over the right hypochondrium for 3 days associated with intermittent fever and anorexia. As she had evidence of localized peritonitis she underwent a diagnostic laparoscopy and subsequently an exploratory laparotomy. A mass measuring 8 × 7 × 5 cm arising from the hepatic flexure of colon was noted. Right hemicolectomy with ileotransverse anastomosis was performed. The mass was subsequently reported to be IFP. Conclusion. IFP is a very rare condition with clinical presentation depending upon its size and location. Definitive diagnosis is possible with histopathological examination of tissue aided by immunohistochemical studies. Surgical resection has been the most common method of treatment especially for large and giant colonic IFPs owing to challenges in terms of diagnosis and technical difficulties associated with endoscopic methods.

Imaging of the female urethral diverticulum

International Nuclear Information System (INIS)

Singla, P.; Long, S.S.; Long, C.M.; Genadry, R.R.; Macura, K.J.

2013-01-01

Female urethral diverticulum is a localized out-pouching of the urethra that is becoming increasingly prevalent, but often poses a diagnostic challenge. Traditionally, conventional voiding cystourethrography has been used to make the preoperative diagnosis. With the development of higher-resolution images acquired through ultrasonography (US), computed tomography (CT), and magnetic resonance imaging (MRI), the anatomy and various abnormalities of the female urethra can be better elucidated. This article focuses on the imaging features of female urethral diverticulum, with emphasis on diagnostic pearls, particularly using MRI. Female urethral diverticulum can be best identified by their location in the posterolateral urethra and by their communication with the urethral lumen. Improved imaging techniques combined with increased physician awareness of urethral diverticulum will lead to more prompt and accurate diagnosis of this entity, leading to better treatment of affected patients

Calculi in female urethral diverticulum

DEFF Research Database (Denmark)

Hansen, B J; Hørby, J; Brynitz, S

1989-01-01

A case of two calculi found in the same urethral diverticulum in a 41-year-old woman with recurrent urinary tract infections is reported. The diagnostic procedures are discussed.......A case of two calculi found in the same urethral diverticulum in a 41-year-old woman with recurrent urinary tract infections is reported. The diagnostic procedures are discussed....

Transperineal Ultrasonographic findings of female urethral diverticulum

International Nuclear Information System (INIS)

Cho, Jin Han; Koo, Bong Sik; Nam, Ki Dong; Choi, Jong Cheol; Park, Byeong Ho; Nam, Kyung Jin; Kweon, Heon Young

1999-01-01

The purpose of the study was to explore the role of sonography for women with a suspected urethral diverticulum and to evaluate the transperineal ultrasonographic findings of female urethral diverticulum. Eight women (mean age, 44 years) who presented with urethral symptoms and clinically suspected urethral diverticula underwent transperineal ultrasonography; sagittal and coronal images were obtained. Sonography was done with either a 7-5 MHz curved array transducer or 10-5 MHz linear transducer, placed on the perineum at the level of the urethra. Ultrasonograms were assessed for the presence, size, location, shape, echogenicity, and septum. Five patients underwent voiding cystourethrography (VCUG). Results of the sonograms and VCUGs were compared with each other and with surgical findings. Longitudinally, all lesions were located in a middle third of the urethra. In axial plane, 4 diverticula wrapped around 50-100% of the urethra. 3 cases located posteriorly, and 1 case laterally. Seven diverticula contained echogenic debris. Three cases have septa in the diverticulum. The outer margin of the diverticula was smooth in 2 patients and was lobulated in 6 patients. In 3 of 5 cases who underwent VCUG, diverticula were filled with contrast, and appeared to be smaller than those of ultrasonography. In addition, all were single diverticulum in VCUG. Most urethral diverticulum were located in a middle third of the urethra, wrapped around the urethra or round posteriorly. Many cases appear unilocular or multilocular with echogenic debris. Transperineal ultrasonography is easy to operate and accurate for showing urethral diverticulum, and it may be useful for diagnosing this group of women with urethral symptoms and suspected urethral diverticulum. It provides information on the extent and location of the diverticulum, which are important in surgical excision.

An unusual case of giant ileal diverticulum–A case report

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Fang Ju Koh

Full Text Available Small bowel diverticulosis is rare with an incidence of 1–2% in the general population. It is an uncommon cause of gastrointestinal bleeding that ranges from obscure to overt bleeding. Large ileal diverticula are extremely rare and bleeding complications can result in high overall mortality.A young gentleman presented with persistent per-rectal bleeding and drop in hemoglobin level. He was recently diagnosed with acute myeloid leukemia and was undergoing chemotherapy. A computed tomography scan of the abdomen and pelvis revealed a giant ileal diverticulum. In view of on-going bleeding, he underwent double balloon enteroscopy which revealed active bleeding from an ulcer within the giant ileal diverticulum and successful hemostasis was performed with hemostatic clips.Small bowel diverticulosis though uncommon has to be considered during workup for gastrointestinal bleeding. Endoscopic treatment is a modern approach towards small bowel diverticular bleeding that is effective and less invasive. Keywords: Enteroscopy, Gastrointestinal bleeding, Small bowel diverticula, Case report

Esophageal epiphrenic diverticulum associated with diffuse esophageal spasm.

Science.gov (United States)

Matsumoto, Hideo; Kubota, Hisako; Higashida, Masaharu; Manabe, Noriaki; Haruma, Ken; Hirai, Toshihiro

2015-01-01

Esophageal diverticulum, a relatively rare condition, has been considered to be associated with motor abnormalities such as conditions that cause a lack of coordination between the distal esophagus and lower esophageal sphincter. We herein report a case of esophageal epiphrenic diverticulum associated with diffuse esophageal spasm. A 73-year-old woman presented with dysphagia and regurgitation. Imaging examinations revealed a right-sided esophageal diverticulum located about 10cm above the esophagogastric junction. High-resolution manometry revealed normal esophageal motility. However, 24-h pH monitoring revealed continuous acidity due to pooling of residue in the diverticulum. An esophageal epiphrenic diverticulum was diagnosed and resected thoracoscopically. Her dysphagia recurred 2 years later. High-resolution manometry revealed diffuse esophageal spasm. The diverticulum in the present case was considered to have been associated with diffuse esophageal spasm. The motility disorder was likely not identified at the first evaluation. In this case, the patient's symptoms spontaneously resolved without any treatment; however, longer-term follow-up is needed. Copyright © 2015 The Authors. Published by Elsevier Ltd.. All rights reserved.

Minimally invasive surgical approach to treat posterior urethral diverticulum

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Ossamah Alsowayan

2015-01-01

Full Text Available Urethral diverticulum is a localized saccular or fusiform out-pouching of the urethra. It may occur at any point along the urethra in both male and females. Male urethral diverticulum is rare, and could be either congenital or acquired, anterior or posterior. The mainstay treatment of posterior urethral diverticulum (PUD is the open surgical approach. Here we discuss our minimally invasive surgical approach (MIS in managing posterior urethral diverticulum.

Encountering Meckel's diverticulum in emergency surgery for ascaridial intestinal obstruction

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Amin Abid

2010-06-01

Full Text Available Abstract Background Meckel's diverticulum is the most common congenital anomaly of the gastrointestinal tract. In children with intestinal ascariasis, the diverticulum remains asymptomatic or rarely the Ascaris lumbricoides may lead to its complications in the presence of massive intestinal roundworm load. Given that preoperative diagnosis is seldom carried out, when Meckel's diverticulum is found at laparotomy for obstructive intestinal complications of roundworm, the diverticulum should be removed as complications may occur at any time. The aim of this study was to describe the findings of concomitant presence of Meckel's diverticulum who had surgical intervention in symptomatic intestinal ascariasis in children. Methods A retrospective case review study of 14 children who had surgical intervention for symptomatic intestinal ascariasis having the presence of concomitant Meckel's diverticulum was done. The study was done at SMHS Hospital Srinagar, Kashmir. Results A total of the 14 children who had ascaridial intestinal obstruction with concomitant presence of Meckel's diverticulum were studied. Age of children ranged from 4-12 years, male:female ratio was 1.8:1. Nine patients had asymptomatic Meckel's diverticulum, whereas 5 patients with symptomatic signs were found in the course of emergency surgery for ascaridial intestinal obstruction. Conclusion Meckel's diverticulum in intestinal ascariasis may pursue silent course or may be accompanied with complications of the diverticulitis, perforation or the gangrene. Incidental finding of the Meckel's diverticulum in the intestinal ascariasis should have removal.

CT findings in children with Meckel diverticulum

International Nuclear Information System (INIS)

Olson, Doug E.; Donnelly, Lane F.; Kim, Yong-Woo

2009-01-01

Approximately 0.04% of the general population will present with a complication related to Meckel diverticulum. The classic teaching is that symptomatic children with Meckel diverticulum present with painless rectal bleeding and are evaluated with a radionuclide scan. Our subjective experience is that we see children with Meckel diverticulum who present with abdominal pain and are evaluated by CT. We reviewed the findings on CT in children with pathologically proven Meckel diverticulum to identify characteristic patterns of presentation. Databases were searched (2004-2008) for all children who had a pathologic diagnosis of Meckel diverticulum and a CT scan performed prior to surgery. Demographics, pathology, and CT features were reviewed. CT features reviewed included: soft-tissue stranding, abnormal calcifications, bowel obstruction, free air, free peritoneal fluid, cystic mass, intussusception, obvious lead point, location, and whether a normal appendix was identified. The frequency of Meckel diverticulum encountered on CT scans was compared to that found during the same period of time on technetium pertechnetate studies. The review identified 16 subjects (mean age 9.5 years, M:F 9:7). CT findings included: soft-tissue stranding in nine (56%), small-bowel obstruction (SBO) in nine (56%), intussusception in three (19%), free fluid in ten (63%), cystic mass in four (25%), calcification in none (0%), free air in one (6%), and no abnormalities in two (13%). A normal appendix was identified in only five children (31%). There were three basic patterns of presentation of abnormalities: SBO only in five, intussusception with SBO in three, or cystic mass with inflammatory stranding in four (one with SBO). Also, 2.3 times more Meckel diverticulum was encountered on CT than on technetium pertechnetate studies. Meckel diverticulum is currently more commonly encountered in children on CT performed for abdominal pain than on technetium pertechnetate studies. There are three

Clinical Conundrum: Killian-Jamieson Diverticulum with Paraesophageal Hernia.

Science.gov (United States)

Bock, Jonathan M; Knabel, Michael J; Lew, Daniel A; Knechtges, Paul M; Gould, Jon C; Massey, Benson T

2016-08-01

Killian-Jamieson diverticulum is a outpouching of the lateral cervical esophageal wall adjacent to the insertion of the recurrent laryngeal to the larynx and is much less common in clinical practice than Zenkers Diverticulum. Surgical management of Killian-Jamieson diverticulum requires open transcervical diverticulectomy due to the proximity of the recurrent laryngeal nerve to the base of the pouch. We present a case of a Killian-Jamieson diverticulum associated with a concurrent large type III paraesophageal hernia causing significant solid-food dysphagia, post-prandial regurgitation of solid foods, and chronic cough managed with open transcervical diverticulectomy and laparoscopic paraesophageal hernia repair with Nissen fundoplication.

Colonic diverticulosis: evaluation with double contrast barium enema

International Nuclear Information System (INIS)

Ko, Jae Kook; Lee, Jong Koo; Yun, Eun Joo; Moon, Hee Jung; Shin, Hyun Ja

1997-01-01

To evaluate the pattern of colonic diverticulosis according to age and sex, and recent trend. The authors retrospectively reviewed 120 cases of colonic diverticulosis in 1,020 patients who had undergone a double contrast barium enema examination between January 1st, 1993, and December 31st, 1995, and analyzed the frequency, size, multiplicity and anatomical site, according to age and sex. Diverticulum size was classified into one of three groups : less than 5mm, 5-10mm, over 10mm in diameter. The overall incidence of colonic diverticulosis was 120 cases among 1,020 patients(11.8%) with an incidence 5.3 times higher in males than in females. Peak incidence was in the fifth decade, with 19 cases (15.8%) among males, and after the sixth decade, with four cases(3.3%) among females. Mean age was 57.7 years. Diverticulum size of 5-10mm in diameter was predominant (2% of cases); average diameter was 5-6mm. The incidence of colonic diverticulosis was 5.1 times more frequent in the right colon (101 cases) than in the left (20 cases). The overall incidence of colonic diverticulosis has continually increased; in addition it has also recently increased slightly in left-sided colon. This is thought to be due to various factors, both congenital and acquired, including longer life with good health care, constipation, irritable bowel syndrome, stress and the tendency of eating patterns to more closely resemble those of the west

Colonic diverticulosis: evaluation with double contrast barium enema

Energy Technology Data Exchange (ETDEWEB)

Ko, Jae Kook; Lee, Jong Koo; Yun, Eun Joo; Moon, Hee Jung; Shin, Hyun Ja [Korea Veterans Hospital, Seoul (Korea, Republic of)

1997-02-01

To evaluate the pattern of colonic diverticulosis according to age and sex, and recent trend. The authors retrospectively reviewed 120 cases of colonic diverticulosis in 1,020 patients who had undergone a double contrast barium enema examination between January 1st, 1993, and December 31st, 1995, and analyzed the frequency, size, multiplicity and anatomical site, according to age and sex. Diverticulum size was classified into one of three groups : less than 5mm, 5-10mm, over 10mm in diameter. The overall incidence of colonic diverticulosis was 120 cases among 1,020 patients(11.8%) with an incidence 5.3 times higher in males than in females. Peak incidence was in the fifth decade, with 19 cases (15.8%) among males, and after the sixth decade, with four cases(3.3%) among females. Mean age was 57.7 years. Diverticulum size of 5-10mm in diameter was predominant (2% of cases); average diameter was 5-6mm. The incidence of colonic diverticulosis was 5.1 times more frequent in the right colon (101 cases) than in the left (20 cases). The overall incidence of colonic diverticulosis has continually increased; in addition it has also recently increased slightly in left-sided colon. This is thought to be due to various factors, both congenital and acquired, including longer life with good health care, constipation, irritable bowel syndrome, stress and the tendency of eating patterns to more closely resemble those of the west.

Togetherness of Achalasia, Paraesophageal Diverticulum and Dextrocardia

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Hakan Demirci

2013-08-01

Full Text Available Achalasia is a disorder of motor function of the esophagus. Its treatment is the quite gratifying. Depending on increasing lower esophageal sphincter pressure, esophageal diverticula can occur in patients with achalasia. We report achalasia, paraesophageal diverticulum and also offer a patient with dextrocardia. 23 year old male patient was admitted to our outpatient clinic with following complaints; chest pain, palpitations and difficulty swallowing. The bird%u2019s beak appearance was observed to in the distal esophagus in contrast barium graphy. The diverticulum was viewed in the distal part of esophagus. Paraesophageal diverticulum situated in food scraps was viewed at 38 cm from the incisors on the endoscopy. It was diagnosed with achalasia and paraesophageal diverticulum to patient as a result of this examination. Cardiology consultation was requested for complaints of chest pain and palpitation. Dextrocardia was viewed in the transesophageal echocardiography. It was applied balloon dilation therapy to patient. The heart is usually structurally normal in the case of dextrocardia. This type of anomaly is not life-shortening effect on. They may be associated with other congenital malformations. Achalasia and paraesophageal diverticulum may be associated with dextrocardia. If congenital anomalies was detected, other possible structural diseases remind.

ENDOSCOPIC TREATMENT OF THE HYPOPHARYNGEAL (ZENKERS) DIVERTICULUM

NARCIS (Netherlands)

WOUTERS, B; VANOVERBEEK, JJM

Over the years the techniques for endoscopic treatment of Zenker's diverticulum have been improved. Initially, in 1964, we used the electrocoagulation technique as described by Dohlman, but currently we prefer to sever the tissue bridge between the diverticulum and esophagus with the CO2 laser under

Radiological diagnosis of Meckel's diverticulum

International Nuclear Information System (INIS)

Florio, F.; Palladino, M.; Stella, P.

1988-01-01

Seven patients with clinically suspected Meckel's diverticulum were examined. The symptoms of Meckel's diverticulum are variable, ranging from mild recurrent or severe acute gastrointestinal bleeding to intestinal obstruction and acute peritonitis. The authors evaluate the diagnostic results and suggest guidelines to choose the most appropriate radiological procedures, according to the clinical pattern: barium meal, enteroclysis and scintigraphy ( 99m TC) in patients with mild bleeding; mesenteric angiography in case of severe bleeding. The possibility of false negatives and positives is then discussed

A Giant Urethral Calculus.

Science.gov (United States)

Sigdel, G; Agarwal, A; Keshaw, B W

2014-01-01

Urethral calculi are rare forms of urolithiasis. Majority of the calculi are migratory from urinary bladder or upper urinary tract. Primary urethral calculi usually occur in presence of urethral stricture or diverticulum. In this article we report a case of a giant posterior urethral calculus measuring 7x3x2 cm in a 47 years old male. Patient presented with acute retention of urine which was preceded by burning micturition and dribbling of urine for one week. The calculus was pushed in to the bladder through the cystoscope and was removed by suprapubic cystolithotomy.

[Dysphagia caused by Zenker's diverticulum after total laryngectomy].

Science.gov (United States)

Morales-Salas, M; Ventura, J; Ruiz Carmona, E; Muñoz, F

2000-10-01

Zenker's diverticulum is a mucosal lined outpouching of pharynx through Lainert's space that causes dysphagia of the upper digestive tract. Multiples theories try to explain the acquired etiology of this entity, attributing its origin to a disfunction of pharynx-esophageal sphincter. A case of total larynguectomy with hypopharyngeal diverticulum and progressive dysphagia to solid food is presented. We analyze the etiopathogenic mechanisms and the definitive characteristics of this entity. We review mundial literature, being exceptional the fact of finding clinical manifestations in diverticulum of larynguectomized patients.

Esophageal leiomyoma arising in an epiphrenic diverticulum

International Nuclear Information System (INIS)

Hamilton, S.

1988-01-01

A 32-year old woman was found at surgery to have an esophageal leiomyoma arising within an epiphrenic diverticulum. These uncommon conditions may rarely occur together, causing difficulty in diagnosis of the leiomyoma. Other neoplasms may also arise in an epiphrenic diverticulum and should be borne in mind in this situation. (orig.)

Calculi in a Female Urethral Diverticulum

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Ji Sung Shim

2011-03-01

Full Text Available Urinary stones are rarely seen in the urethra and are usually encountered in men with urethral stricture or diverticulum. The case of a 52-year-old woman presented, who consulted for weak stream associated with repeated urinary infections. The diverticulum was approached via vaginal route and the extraction was successful. The patient has been well, with no dysuria, dyspareunia, incontinence for 3-month follow-ups.

Perforated duodenal diverticulum caused by Bezoar: A case report

Energy Technology Data Exchange (ETDEWEB)

Lee, Eun Jung; Moon, Sung Kyoung; Park, Seong Jin; Lim, Joo Won; Lee, Dong Ho; Ko, Young Tae [Dept. of Radiology, College of Medicine, Kyung Hee University, Seoul (Korea, Republic of)

2013-11-15

Duodenal diverticulum is common, but its perforation is a rare complication. Duodenal diverticulum perforation requires prompt treatments because of its high mortality rate. However, an accurate diagnosis is difficult to make due to nonspecific symptoms and signs. It can be misdiagnosed as pancreatitis, cholecystitis, or peptic ulcer. Herein, we report a case of perforated duodenal diverticulum caused by bezoar in a 33-year-old woman whom was diagnosed by abdomen computed tomography and ultrasonography.

Perforated duodenal diverticulum caused by Bezoar: A case report

International Nuclear Information System (INIS)

Lee, Eun Jung; Moon, Sung Kyoung; Park, Seong Jin; Lim, Joo Won; Lee, Dong Ho; Ko, Young Tae

2013-01-01

Duodenal diverticulum is common, but its perforation is a rare complication. Duodenal diverticulum perforation requires prompt treatments because of its high mortality rate. However, an accurate diagnosis is difficult to make due to nonspecific symptoms and signs. It can be misdiagnosed as pancreatitis, cholecystitis, or peptic ulcer. Herein, we report a case of perforated duodenal diverticulum caused by bezoar in a 33-year-old woman whom was diagnosed by abdomen computed tomography and ultrasonography.

[Zenker diverticulum: a case report].

Science.gov (United States)

Kocatürk, Sinan; Beriat, Güçlü Kaan; Doğan, Cem

2009-01-01

Zenker's diverticulum is a pulsion typed pharyngoeosophageal diverticle caused by the herniation of the pharyngeal mucosa, standing beside the posterior pharyngeal wall, through the Killian opening which is known as the weak area between the inferior constructor muscle's oblique fibres and transverse fibres of cricopharyngeal muscle. In patients with Zenker's diverticulum, symptoms such as disfagia, globus in the cervical area, weigh loss, regurgitation, cough, and aspiration. These patients are primarily admitted to the Gastroenterology and Othorhinolaryngology clinics with the complaint of disfagia and the diagnosis of this disease is mostly established late and the treatment is started late because the results of their physical examinations seem normal. Therefore, especially in the patients who have disfagia complaint, pharyngoeosophageal diverticle prediagnosis should be thought and that should be examined by passage graphies with barium and endoscopic methods, if needed. In this article, we presented the 67-year-old Zenker's diverticulum patient in whom we performed open diverticulectomy and posterior cricopharyngeal myotomy, and we specified the important points in choosing the patient and the type of surgery.

Abdominal colic due to ureteric diverticulum with stone formation

International Nuclear Information System (INIS)

Roodhooft, A.M.; Boven, K.; Acker, K.J. van; Gentens, P.

1987-01-01

In a 15-year-old boy right lower abdominal colicky pain was caused by intermittent obstruction of the ureter by stones which had accumulated in a ureteric diverticulum. As was shown by repeated X-rays, each of these stones had moved to the ureter and back to the diverticulum. Ureteric diverticulum mostly remains asymptomatic in children: stone formation and obstruction of the ureter by the stones is one of the instances which may cause symptoms. (orig.)

Ruptured Jejunal Diverticulum Due to a Single-Band Small Bowel Obstruction

Directory of Open Access Journals (Sweden)

Rajaraman Durai

2008-01-01

Full Text Available Jejunal diverticulosis is rare and often goes unnoticed until complications occur. The diverticula are true, acquired diverticula and often asymptomatic. Jejunal diverticulosis can be associated with diverticulosis of the duodenum, ileum, and colon. Here we describe a patient with known severe diverticular disease of the large bowel, who presented acutely with abdominal pain and signs of generalised peritonitis. Laparotomy showed ruptured jejunal diverticulosis with a single band over the terminal ileum, causing small bowel obstruction. Spontaneous perforation of a jejunal diverticulum is rare and is usually an intraoperative finding. One should exclude a precipitating cause, such as coexisting distal obstruction, stricture, or a foreign body.

Laparoscopic management of terminal ileal volvulus caused by Meckel's diverticulum.

Science.gov (United States)

Xanthis, A; Hakeem, A; Safranek, P

2015-04-01

Complications from a Meckel's diverticulum include diverticulitis, bleeding, intussusception, bowel obstruction, a volvulus, a vesicodiverticular fistula, perforation or very rarely as a tumour. We report a case where a Meckel's diverticulum presented with a terminal ileal volvulus in a 32-year-old man without the presence of a typical vitelline band or axial torsion of the diverticulum causing the volvulus. It was successfully managed laparoscopically.

Transurethral incision of urethral diverticulum in the female

DEFF Research Database (Denmark)

Miskowiak, J; Honnens de Lichtenberg, M

1989-01-01

A new technique of transurethral incision of urethral diverticulum was successfully used in two women. The method described is safe, simple and shortens operating time.......A new technique of transurethral incision of urethral diverticulum was successfully used in two women. The method described is safe, simple and shortens operating time....

Laparoscopic Meckel's diverticulumectomy following positive Meckel's diverticulum scan

International Nuclear Information System (INIS)

Mansberg, R.; Roberts, J.M.; Tan, B.

2002-01-01

Full text: Laparoscopic or 'keyhole' surgery is increasingly performed to reduce morbidity and length of hospital admissions. Laparoscopic resection of a Meckel's Diverticulum has rarely been performed as the diagnosis is only rarely made prior to surgery and most patients proceed to exploratory laparotomy. A positive Meckel's scan and subsequent laparoscopic Meckel's Diverticulumectomy is presented. A 26-year-old male tourist presented with GIT bleeding following acute alcohol ingestion. He had previously been unsuccessfully investigated in England for GIT bleeding. Following a negative gastroscopy a Meckel's Diverticulum scan was performed. The study clearly demonstrated ectopic gastrin secreting mucosa in the right iliac fossa .The following day the patient went to theatre and at laparoscopy the Meckel's diverticulum was identified and resected. Histological examination confirmed the diagnosis of a Meckel's Diverticulum. The patient returned to England 2 days later. This case illustrates how a scintigraphic diagnosis can avoid exploratory surgery and result in less invasive laparoscopic surgery. Copyright (2002) The Australian and New Zealand Society of Nuclear Medicine Inc

Meckel's Diverticulum in Children-Parameters Predicting the Presence of Gastric Heterotopia.

Science.gov (United States)

Slívová, Ivana; Vávrová, Zuzana; Tomášková, Hana; Okantey, Okaikor; Penka, Igor; Ihnát, Peter

2018-05-10

The presence of gastric ectopic mucosa in Meckel's diverticulum is associated with a higher risk of development of complications. The aim of the present study was to investigate which demographic/clinical parameters predict the presence of gastric heterotopia in Meckel's diverticulum. This was a retrospective cohort study conducted in a single institution (University Hospital Ostrava, Czech republic). All children who underwent laparoscopic/open resection of Meckel's diverticulum within a 20-year study period were included in the study. In total, 88 pediatric patients underwent analysis. The mean age of the children was 4.6 ± 4.73 years; the male-female ratio was approximately 2:1. There were 50 (56.8%) patients with asymptomatic Meckel's diverticulum in our study group. Laparoscopic resection was performed in 24 (27.3%) patients; segmental bowel resection through laparotomy was performed in 13 (14.8%) patients. Gastric heterotopia was found in 39 (44.3%) patients; resection margins of all patients were clear of gastric heterotopia. No correlation was found between the presence of gastric heterotopia and the following parameters: age, gender, maternal age, prematurity, low birth weight, perinatal asphyxia, distance from Bauhin's valve and length of Meckel's diverticulum. The width of the diverticulum base was significantly higher in patients with gastric heterotopia (2.1 ± 0.57 vs. 1.2 ± 0.41 cm; p < 0.001). According to the study outcomes, the width of the diverticulum base seems to be a significant predictive factor associated with the presence of gastric heterotopia in Meckel's diverticulum. The laparoscopic/open resection of asymptomatic MD with a wide base should therefore be recommended.

Impacted Anterior Urethral Calculus Complicated by a Stone-containing Diverticulum in an Elderly Man: Outcome of Transurethral Lithotripsy without Resection of the Diverticulum

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Tie Zhou

2013-09-01

Full Text Available Introduction The prevalence of lower urinary tract symptoms (LUTS is about 20% in men aged 40 or above. Other than benign prostatic hyperplasia (BPH, urethral diverticulum or calculus is not uncommon for LUTS in men. Surgical treatment is often recommended for urethral diverticulum or calculus, but treatment for an impacted urethral calculus complicated by a stone-containing diverticulum is challenging. Materials and Methods An 82-year-old man had the persistence of LUTS despite having undergone transurethral resection of prostate for BPH. Regardless of treatment with broad spectrum antibiotics and an α-blocker, LUTS and post-void residual urine volume (100 mL did not improve although repeated urinalysis showed reduction of WBCs from 100 to 10 per high power field. Further radiology revealed multiple urethral calculi and the stone configuration suggested the existence of a diverticulum. He was successfully treated without resecting the urethral diverticulum; and a new generation of ultrasound lithotripsy (EMS, Nyon, Switzerland through a 22F offset rigid Storz nephroscope (Karl Storz, Tuttingen, Germany was used to fragment the stones. Results The operative time was 30 minutes and the stones were cleanly removed. The patient was discharged after 48 hours with no immediate complications and free of LUTS during a 2 years follow-up. Conclusions When the diverticulum is the result of a dilatation behind a calculus, removal of the calculus is all that is necessary. Compared with open surgery, ultrasound lithotripsy is less invasive with little harm to urethral mucosa; and more efficient as it absorbs stone fragments while crushing stones.

Impacted anterior urethral calculus complicated by a stone-containing diverticulum in an elderly man: outcome of transurethral lithotripsy without resection of the diverticulum.

Science.gov (United States)

Zhou, Tie; Chen, Guanghua; Zhang, Wei; Peng, Yonghan; Xiao, Liang; Xu, Chuangliang; Sun, Yinghao

2013-01-01

The prevalence of lower urinary tract symptoms (LUTS) is about 20% in men aged 40 or above. Other than benign prostatic hyperplasia (BPH), urethral diverticulum or calculus is not uncommon for LUTS in men. Surgical treatment is often recommended for urethral diverticulum or calculus, but treatment for an impacted urethral calculus complicated by a stone-containing diverticulum is challenging. An 82-year-old man had the persistence of LUTS despite having undergone transurethral resection of prostate for BPH. Regardless of treatment with broad spectrum antibiotics and an α-blocker, LUTS and post-void residual urine volume (100 mL) did not improve although repeated urinalysis showed reduction of WBCs from 100 to 10 per high power field. Further radiology revealed multiple urethral calculi and the stone configuration suggested the existence of a diverticulum. He was successfully treated without resecting the urethral diverticulum; and a new generation of ultrasound lithotripsy (EMS, Nyon, Switzerland) through a 22F offset rigid Storz nephroscope (Karl Storz, Tuttingen, Germany) was used to fragment the stones. The operative time was 30 minutes and the stones were cleanly removed. The patient was discharged after 48 hours with no immediate complications and free of LUTS during a 2 years follow-up. When the diverticulum is the result of a dilatation behind a calculus, removal of the calculus is all that is necessary. Compared with open surgery, ultrasound lithotripsy is less invasive with little harm to urethral mucosa; and more efficient as it absorbs stone fragments while crushing stones.

Perforated Meckel’s Diverticulum Lithiasis: An Unusual Cause of Peritonitis

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Umasankar Mathuram Thiyagarajan

2013-01-01

Full Text Available Meckel’s diverticulum is the commonest congenital malformation of gastrointestinal tract and represents a persistent remnant of the omphalomesenteric duct. Although it mostly remains silent, it can present as bleeding, perforation, intestinal obstruction, intussusception, and tumours. These complications, especially bleeding, tend to be more common in the paediatric group and intestinal obstruction in adults. Stone formation (lithiasis in Meckel’s diverticulum is rare. We report a case of Meckel’s diverticulum lithiasis which presented as an acute abdomen in an otherwise healthy individual. The patient underwent an exploratory laparotomy which revealed a perforated Meckel’s diverticulum with lithiasis; a segmental resection with end-to-end anastomosis of small bowel was performed. Patient recovery was delayed due to pneumonia, discharged on day 20 with no further complications at 6 months following surgery.

Perforation of Meckel's diverticulum caused by a chicken bone: a case report

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Chan Kim W

2009-02-01

Full Text Available Abstract Introduction Meckel's diverticulum represents a true diverticulum of the ileum containing all three layers of the bowel wall and is found on the wall of the distal ileum, usually about 2 feet from the ileocaecal valve. Although Meckel's diverticulum is a common congenital abnormality of the gastrointestinal tract, it is often difficult to diagnose. Patients with perforation of Meckel's diverticulum may present with right iliac fossa pain, which mimics acute appendicitis. Case presentation A 17-year-old man presented with a 3-day history of lower abdominal pain. On examination, the patient had tenderness in his right iliac fossa. A provisional diagnosis of acute appendicitis was made. The patient was taken to theatre for laparoscopy with the option of appendicectomy. The appendix was found to be normal. An inflamed and perforated Meckel's diverticulum was found to be the cause of the abdominal pain. Meckel's diverticulectomy was performed. The patient made an uneventful recovery and was discharged with further follow-up in the outpatient clinic. Conclusion Complications of Meckel's diverticulum can be fatal and early recognition leads to appropriate management. This case report highlights the importance of considering Meckel's diverticulum as a differential diagnosis of acute abdomen in a young patient.

Giant Meckel’s diverticulum compressing root of mesentery – A rare cause of ileal gangrene – Case report and review of literature

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Mohammed Farooq

2017-01-01

Conclusion: Appropriate opportunistic resection of an incidental Meckel’s diverticulum may prevent extensive surgical morbidity later. This case highlights the need to revisit guidelines for management of incidentally identified MD.

Zenker's Diverticulum: Diagnostic Approach and Surgical Management

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Carlos M. Nuño-Guzmán

2014-11-01

Full Text Available Zenker's diverticulum (ZD, also known as cricopharyngeal, pharyngoesophageal or hypopharyngeal diverticulum, is a rare condition characterized by an acquired outpouching of the mucosal and submucosal layers originating from the pharyngoesophageal junction. This false and pulsion diverticulum occurs dorsally at the pharyngoesophageal wall between the inferior pharyngeal constrictor and the cricopharyngeus muscle. The pathophysiology of ZD involves altered compliance of the cricopharyngeus muscle and raised intrabolus pressure. Decreased compliance of the upper esophageal sphincter and failure to open completely for effective bolus clearance both lead to an increase in the hypopharyngeal pressure gradient. Different open surgical techniques and transoral endoscopic approaches have been described for the management of ZD, although there is no consensus about the best option. We report the case of a 61-year-old patient with a 7-year history of dysphagia and odynophagia for solid food, which after 2 months progressed to dysphagia for liquids and after 4 months to regurgitation 2-6 h after meals. The patient experienced a 12-kg weight loss. Diagnosis was established by esophagogram, which showed a diverticulum through the posterior pharyngeal wall, suggestive of a ZD. Esophagogastroduodenoscopy showed a pouch with erythematous mucosa. Under general anesthesia, diverticulectomy and myotomy were performed. After an uneventful recovery and adequate oral intake, the patient remains free of symptoms at 4 months of follow-up.

Emphysematous cystitis and bladder trigone diverticulum in a dog

International Nuclear Information System (INIS)

Lobetti, R.G.; Goldin, J.P.

1998-01-01

A 14-month-old, male German shepherd dog was evaluated for chronic, recurrent Escherichia coli urinary tract infection. An initial diagnosis of emphysematous cystitis was made, which resolved with appropriate antibacterial therapy. The urinary tract infection, however, did not resolve and on further investigation a bladder trigone diverticulum was evident, thought to be congenital in origin. This report describes the apparent ultrasonographic and radiological changes, and surgical repair of the diverticulum, and reviews the literature with regard to both congenital bladder trigone diverticulum and emphysematous cystitis. The former has never been documented in the dog and the latter is an unusual finding in a non-diabetic dog

Huge uterine-cervical diverticulum mimicking as a cyst

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S Chufal

2012-01-01

Full Text Available Here we report an incidental huge uterine-cervical diverticulum from a total abdominal hysterectomy specimen in a perimenopausal woman who presented with acute abdominal pain. The diverticulum was mimicking with various cysts present in the lateral side of the female genital tract. Histopathological examination confirmed this to be a cervical diverticulum with communication to uterine cavity through two different openings. They can attain huge size if left ignored for long duration and present a diagnostic challenge to clinicians, radiologists, as well as pathologists because of its extreme rarity. Therefore, diverticula should also be included as a differential diagnosis. Its histopathological confirmation also highlights that diverticula can present as an acute abdomen, requiring early diagnosis with appropriate timely intervention. Immunohistochemistry CD 10 has also been used to differentiate it from a mesonephric cyst.

Gastrointestinal stromal tumor of Meckel's diverticulum: a rare cause of intestinal volvulus.

Science.gov (United States)

Cengız, Fevzi; Sun, Mehmet Ali; Esen, Özgür Sipahi; Erkan, Nazif

2012-08-01

Meckel's diverticulum is the most common congenital abnormality of the gastrointestinal tract. Most cases are asymptomatic; however, when symptomatic, it is often misdiagnosed at presentation. Common complications presenting in adults include bleeding, obstruction, diverticulitis, and perforation. Tumors within a Meckel's diverticulum are rare. Herein, we present a gastrointestinal stromal tumor arising from the Meckel's diverticulum that led to intestinal obstruction by volvulus.

Esophageal epiphrenic diverticulum associated with diffuse esophageal spasm

OpenAIRE

Matsumoto, Hideo; Kubota, Hisako; Higashida, Masaharu; Manabe, Noriaki; Haruma, Ken; Hirai, Toshihiro

2015-01-01

Introduction: Esophageal diverticulum, a relatively rare condition, has been considered to be associated with motor abnormalities such as conditions that cause a lack of coordination between the distal esophagus and lower esophageal sphincter. Presentation of case: We herein report a case of esophageal epiphrenic diverticulum associated with diffuse esophageal spasm. A 73-year-old woman presented with dysphagia and regurgitation. Imaging examinations revealed a right-sided esophageal diver...

Common Bile Duct Obstruction Secondary to a Periampullary Diverticulum

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Anastasios J. Karayiannakis

2012-07-01

Full Text Available Periampullary duodenal diverticula are not uncommon and are usually asymptomatic although complications may occasionally occur. Here, we report the case of a 72-year-old woman who presented with painless obstructive jaundice. Laboratory tests showed abnormally elevated serum concentrations of total and direct bilirubin, of alkaline phosphatase, of γ-glutamyl transpeptidase, and of aspartate and alanine aminotransferases. Serum concentrations of the tumor markers carbohydrate antigen 19-9 and carcinoembryonic antigen were normal. Abdominal ultrasonography showed dilatation of the common bile duct (CBD, but no gallstones were found either in the gallbladder or in the CBD. The gallbladder wall was normal. Computed tomography failed to detect the cause of CBD obstruction. Magnetic resonance imaging and magnetic resonance cholangiopancreatography revealed a periampullary diverticulum measuring 2 cm in diameter and compressing the CBD. The pancreatic duct was normal. Hypotonic duodenography demonstrated a periampullary diverticulum with a filling defect corresponding to the papilla. CBD compression by the diverticulum was considered as the cause of jaundice. The patient was successfully treated by surgical excision of the diverticulum. In conclusion, the presence of a periampullary diverticulum should be considered in elderly patients presenting with obstructive jaundice in the absence of CBD gallstones or of a tumor mass. Non-interventional imaging studies should be preferred for diagnosis of this condition, and surgical or endoscopic interventions should be used judiciously for the effective and safe treatment of these patients.

Duodenal diverticulum and obstructive jaundice: two case reports

International Nuclear Information System (INIS)

Lopez, J.A.; Larena, J.A.; Larrea, L.M.; Pena, J.M.

1996-01-01

Duodenal diverticulum is a common, and usually asymptomatic, pathology. The associated complications are rare, but have an elevated degree of morbidity and mortality. We present two cases of obstructive jaundice due to duodenal diverticulum. this is an unusual complication, very few cases of which have been reported in the medical literature. We describes the ultrasound (US) and abdominal computerized tomography (CT) findings. The latter led to the diagnosis in both patients. (Author) 25 refs

Diverticulum of the mitral valve, a rare cause of mitral regurgitation.

LENUS (Irish Health Repository)

Soo, Alan

2010-12-01

Non-infective mitral valve diverticulum is extremely rare. We present a case of intraoperatively diagnosed mitral valve diverticulum of a 69-year-old man presenting with mitral regurgitation who was successfully treated with mitral valve replacement.

Diverticulum of the brachiocephalic trunk - angiography and embryological explanation

Energy Technology Data Exchange (ETDEWEB)

Pfefferkorn, J.R.; Lunkenheimer, A.; Loeser, H.; Hilgenberg, F.

1983-03-01

A diverticulum of the brachiocephalic trunk is described in 5 children with unilateral absence of the pulmonary artery, in a child with tetralogy of Fallot, and in an other child with Bland-White-Garland syndrome. The diverticulum is a remnant of a contralateral ductus arteriosus, which closed after birth and represents the origin of the distal part of the sixth aortic arch.

Urethral diverticulum after laparoscopically-assisted anorectal pull-through (LAARP) for anorectal malformation: is resection of the diverticulum always necessary?

Science.gov (United States)

López, Pedro José; Guelfand, Miguel; Angel, Lorena; Paulos, Angélica; Cadena, Yair; Escala, José M; Letelier, Nelly; Zubieta, Ricardo

2010-05-01

With the increased use of minimally invasive surgery, the urethral diverticulum after anorectal surgery has become an issue. The few cases reported have been managed by surgical excision. We hereby report a case of urethral diverticulum after a laparoscopically-assisted anorectal pull-through (LAARP)procedure with a successful outcome after a period of active surveillance. A full-term boy who displayed a high anorectal malformation (ARM) and a rectoprostatic fistula underwent colostomy on the first day. He also showed associated malformations: bilateral low-grade reflux, horseshoe kidney and thoracic hemivertebrae; however, there were no signs of spinal cord tethering. Antimicrobial prophylaxis was started. At the age of 3 months, he underwent a LAARP with a 3 abdominal-port approach. After complete dissection of the distal bowel, the recto-prostatic fistula was identified and tied with metallic clips. A 10 mm trocar was inserted through the centre of the sphincteric complex, which had been previously identified under laparoscopic view during perineal electrical stimulation. The anorectal pull-through was accomplished without tension. The bladder remained stented for 14 days. On the 18th postoperative day, a voiding cystourethrogram (VCUG) showed a 15 X 5 mm image of the diverticulum at the level of the membranous urethra. After 6 months, a new VCUG showed a normal urethra with neither signs of the diverticulum nor strictures; persistence of grade 2 reflux on the right side and resolution of the reflux on the left. When the boy was one year old his colostomy was closed uneventfully. Six months later he had not come into the emergency since the operation and voided with a normal flow. This report suggests that LAARP is a feasible approach for ARM, although urethral diverticulum is a major concern. It may evolve without complications, and eventually resolve spontaneously. Active surveillance might be an option in selected asymptomatic patients; however a longer

Radiological features of Meckel's diverticulum and its complications

International Nuclear Information System (INIS)

Thurley, P.D.; Halliday, K.E.; Somers, J.M.; Al-Daraji, W.I.; Ilyas, M.; Broderick, N.J.

2009-01-01

Meckel's diverticulum is the most common congenital abnormality of the small bowel. The majority of patients with this anomaly will remain asymptomatic; however, several complications may occur, including obstruction, intussusception, perforation, diverticulitis, and gastrointestinal haemorrhage. These complications may produce a variety of different clinical features and radiological appearances. The purpose of this article is to review the potential imaging manifestations of Meckel's diverticulum and its complications and discuss the advantages and disadvantages of the imaging techniques available

Radiological features of Meckel's diverticulum and its complications

Energy Technology Data Exchange (ETDEWEB)

Thurley, P.D. [Departments of Radiology Queens Medical Centre, Nottingham University Hospitals, Nottingham (United Kingdom)], E-mail: pthurley@doctors.org.uk; Halliday, K E; Somers, J M [Departments of Radiology Queens Medical Centre, Nottingham University Hospitals, Nottingham (United Kingdom); Al-Daraji, W I; Ilyas, M [Histopathology, Queens Medical Centre, Nottingham University Hospitals, Nottingham (United Kingdom); Broderick, N J [Departments of Radiology Queens Medical Centre, Nottingham University Hospitals, Nottingham (United Kingdom)

2009-02-15

Meckel's diverticulum is the most common congenital abnormality of the small bowel. The majority of patients with this anomaly will remain asymptomatic; however, several complications may occur, including obstruction, intussusception, perforation, diverticulitis, and gastrointestinal haemorrhage. These complications may produce a variety of different clinical features and radiological appearances. The purpose of this article is to review the potential imaging manifestations of Meckel's diverticulum and its complications and discuss the advantages and disadvantages of the imaging techniques available.

Heterotopic pancreatic tissue of the stomach leading to gastric diverticulum and upper gastro-intestinal bleeding

Directory of Open Access Journals (Sweden)

Silviu Stoian

2016-11-01

Full Text Available Heterotopic pancreatic tissue of the stomach is a rare condition. Gastric diverticulum is also a rare condition, mostly located at the fornix. Therefore, the existence of a pyloric gastric diverticulum containing a submucosal tumor proved to be heterotopic pancreatic tissue of the stomach is an extremely rare condition. The patient was a young thin male with epigastralgia chronically treated for gastritis/ulcer. Following an episode of melena, he underwent gastroscopy that diagnosed antral gastric diverticulum containing a polyp. The lesion was surgically removed. The pathology report stated: heterotopic pancreatic tissue of the stomach with secondary development of a traction diverticulum. Heterotopic pancreas tissue of the stomach is a rare condition but the association with gastric diverticulum is completely unusual. The possibility of the ectopic tissue leading to secondary diverticulum development should be considered.

A diverticulum of the brachiocephalic trunk - angiography and embryological explanation

International Nuclear Information System (INIS)

Pfefferkorn, J.R.; Lunkenheimer, A.; Loeser, H.; Hilgenberg, F.

1983-01-01

A diverticulum of the brachiocephalic trunk is described in 5 children with unilateral absence of the pulmonary artery, in a child with tetralogy of Fallot, and in an other child with Bland-White-Garland syndrome. The diverticulum is a remnant of a contralateral ductus arteriosus, which closed after birth and represents the origin of the distal part of the sixth aortic arch. (orig.) [de

New technique using LigaSure for endoscopic mucomyotomy of Zenker's diverticulum

DEFF Research Database (Denmark)

Nielsen, Hans Ulrik Kjaerem; Trolle, Waldemar; Rubek, Niclas

2014-01-01

OBJECTIVES/HYPOTHESIS: The purpose of this study is to present a new approach for treatment of Zenker's diverticulum using the LigaSure (Covidien, Mansfield, MA) technique. STUDY DESIGN: A consecutive study with follow-up of 15 patients with Zenker's diverticulum endoscopically treated using...... patients were followed up 5 to 14 months after discharge. RESULTS: The median age of patients was 76 years. The diverticula measured between 2 and 7 cm. The median time of surgery was 33 minutes. All patients but one resumed oral intake within 24 hours. One patient experienced prolonged coughing...... condition. As a new operative instrument, the LigaSure technique constitutes in our opinion a valid and easy alternative for treatment of Zenker's diverticulum compared to other endoscopic techniques....

Male Urethral Diverticulum Having Multiple Stones

African Journals Online (AJOL)

muscle fibers in their wall, commonly encountered in adults, and involve the posterior urethra. Differential diagnosis for UD includes syringoceles (cystic dilatation of the Cowper's gland), sequestration cysts, epidermoid and epithelial inclusion cysts. Male Urethral Diverticulum Having Multiple Stones. Mohanty D, Garg PK, ...

Lateral Pharyngeal Diverticulum presenting with Dysphagia ...

African Journals Online (AJOL)

Lateral pharyngeal diverticulum (Pharyngocele) is the protrusion of pharyngeal mucosa through the pharyngeal wall, usually through either of two weak areas in the pharyngeal wall as an acquired or congenital case. Lateral diverticula are very rare and not to be mistaken for the rather more frequent and abundantly ...

Gastric diverticulum causing gastric outlet obstruction in the setting of duodenal atresia

Directory of Open Access Journals (Sweden)

Devashis Mukherjee

2018-04-01

Full Text Available Duodenal obstruction due to duodenal atresia occurs in 1 in 10,000 live births and is the most common type of intestinal obstruction in neonates [1–3]. Gastric outlet obstruction in the newborn period from causes other than hypertrophic pyloric stenosis is very uncommon [3]. Potential etiologies include gastric volvulus, antral web, and duplication cysts. Gastric diverticula in the infant is even more rare, with only a few case reports published, and only one describes a gastric diverticulum in the presence of a duodenal atresia [4–8]. In this report, we describe the first case of a gastric outlet obstruction due to a gastric diverticulum in the presence of duodenal atresia. Keywords: Duodenal atresia, Gastric diverticulum, Gastric outlet obstruction

Peritonitis Aguda por Diverticulo Apendicular Perforado / Acute perforated diverticulum appendiceal peritonitis

Directory of Open Access Journals (Sweden)

Martinez Villalba N

2015-11-01

Full Text Available Appendix diverticular disease is a casual finding after appendectomies or pathological studies of surgical samples. Most patients are male adults between the fourth and fifth decade of life. 16 years old male consults for a 48 hours stitch pain in right iliac fossa of moderate intensity radiating to lower abdomen with nausea and fever, without vomiting or diarrhea. Presents lower abdominal pain with muscle guarding and pain on physical examination. Bowel sounds negative. Laboratory routine study shows leukocytosis with neutrophilia. A perforated diverticulum of about 15cm diameter is found during surgery in the middle third of the cecum appendix with 200cc purulent fluid in and multiple adhesions to transverse colon, omentum and small intestine. A conventional appendectomy is performed. Acute appendix diverticulitis is a rare entity and its finding is by casualty. It is important to consider it a differential diagnosis especially in the intraoperative treatment which in most cases does not differ from conventional appendectomy.

Meckel's diverticulum: the lead point of intrauterine intussusception ...

African Journals Online (AJOL)

Meckel's diverticulum: the lead point of intrauterine intussusception with subsequent intestinal atresia in a newborn. Viet H. Le, Paul A. Perry, Allyson L. Hale, Robert L. Gates, John C. Chandler ...

Clinical relevance and prognostic value of radiographic findings in Zenker's diverticulum.

Science.gov (United States)

Mantsopoulos, Konstantinos; Psychogios, Georgios; Karatzanis, Alexander; Künzel, Julian; Lell, Michael; Zenk, Johannes; Koch, Michael

2014-03-01

The aim of this study was to evaluate the clinical relevance and prognostic value of preoperative and postoperative oesophagography in patients with Zenker's diverticulum. The medical records of 155 patients who underwent surgical treatment (with an endoscopic or transcervical approach) for Zenker's diverticulum between 1992 and 2010 in a tertiary referral centre were retrospectively evaluated. The size of the diverticula on oesophagography, recognizable muscular septum, and protection of the diverticulum were assessed relative to the surgical procedures performed. The incidence of diverticular remnants on postoperative oesophagography was also assessed relative to the surgical procedure. It was investigated whether the detection of a residual pharyngeal pouch and filling of it with contrast medium were related to the patients' immediate postoperative symptoms and the development of symptomatic recurrence. Larger diverticula (Brombart III-IV) were manageable significantly more often with endoscopic procedures (P = 0.007). Residual diverticulum and filling with contrast medium were strongly associated with prolonged dysphagia immediately postoperatively (P = 0.005 and P = 0.009, respectively). However, these parameters failed to correlate significantly with a symptomatic recurrence. Preoperative oesophagography proved to be extremely important for surgical planning, with the surgeon's personal preference seeming to be the driving indicator in many cases. Postoperative oesophagography is only useful for excluding postoperative complications in the immediate postoperative phase and did not have a prognostic value as to a recurrence of the disease.

Crouzon’s Syndrome with Life-Threatening Ear Bleed: Ruptured Jugular Vein Diverticulum Treated by Endovascular Embolization

International Nuclear Information System (INIS)

Mondel, Prabath Kumar; Anand, Sunanda; Limaye, Uday S.

2015-01-01

Crouzon’s syndrome is the commonest variety of syndromic craniosynostosis. Life-threatening ear bleed due to ruptured jugular venous diverticulum in Crouzon’s syndrome has not been described previously. In patients with syndromic craniosynostosis, definitive repair of jugular diverticulum by open surgery is fraught with high risk of bleeding, poor functional outcomes, and even death. A 24-year-old woman with Crouzon’s syndrome presented with conductive hearing loss and recurrent episodes of torrential bleeding from her left ear. On computed tomography, a defect in the roof of jugular fossa containing jugular venous diverticulum immediately inferior to the bony external auditory canal was seen. The clinical presentation, imaging features, and endovascular management of Crouzon’s syndrome due to a ruptured jugular venous diverticulum is described

Crouzon’s Syndrome with Life-Threatening Ear Bleed: Ruptured Jugular Vein Diverticulum Treated by Endovascular Embolization

Energy Technology Data Exchange (ETDEWEB)

Mondel, Prabath Kumar, E-mail: prabathmondel@gmail.com; Anand, Sunanda, E-mail: sunandaanand@gmail.com; Limaye, Uday S., E-mail: uslkem@gmail.com [Lilavati Hospital and Research Centre, Department of Interventional Neuroradiology (India)

2015-08-15

Crouzon’s syndrome is the commonest variety of syndromic craniosynostosis. Life-threatening ear bleed due to ruptured jugular venous diverticulum in Crouzon’s syndrome has not been described previously. In patients with syndromic craniosynostosis, definitive repair of jugular diverticulum by open surgery is fraught with high risk of bleeding, poor functional outcomes, and even death. A 24-year-old woman with Crouzon’s syndrome presented with conductive hearing loss and recurrent episodes of torrential bleeding from her left ear. On computed tomography, a defect in the roof of jugular fossa containing jugular venous diverticulum immediately inferior to the bony external auditory canal was seen. The clinical presentation, imaging features, and endovascular management of Crouzon’s syndrome due to a ruptured jugular venous diverticulum is described.

Jugular bulb diverticulum combined with high jugular bulb: a case report with CT and MRA findings

International Nuclear Information System (INIS)

Ko, Seog Wan

2004-01-01

Jugular bulb diverticulum is a rare condition that is characterized by the outpouching of the jugular bulb, and this can lead to hearing loss, tinnitus and vertigo. A few reports have revealed the radiologic findings about jugular bulb diverticulum, but none of them have described the MRA findings concerning this lesion. We present here the CT and MR venography findings in regards to a large high jugular blub and diverticulum we observed in a 47-year-old woman

Jugular bulb diverticulum combined with high jugular bulb: a case report with CT and MRA findings

Energy Technology Data Exchange (ETDEWEB)

Ko, Seog Wan [College of Medicine, Chonbuk National Univ., Jeonju (Korea, Republic of)

2004-12-01

Jugular bulb diverticulum is a rare condition that is characterized by the outpouching of the jugular bulb, and this can lead to hearing loss, tinnitus and vertigo. A few reports have revealed the radiologic findings about jugular bulb diverticulum, but none of them have described the MRA findings concerning this lesion. We present here the CT and MR venography findings in regards to a large high jugular blub and diverticulum we observed in a 47-year-old woman.

Imaging findings of midgut volvuIus associated with a large small-bowel diverticulum in an aduIt patient: case report

Energy Technology Data Exchange (ETDEWEB)

Kim, Jee Young; Rha, Sung Eun; Oh, Soon Nam; Bo, Seal Hwang; Byun, Jae Young [College of Medicine, The Catholic Univ. of Korea, Seoul (Korea, Republic of)

2004-05-01

Although most patients with jejunoileal diverticulum are asymptomatic, a large, small-bowel diverticulum can be associated with midgut volvulus in an adult. We present a rare case of midgut volvulus that was associated with a large, small-bowel diverticulum in a 77-year-old woman presenting with chronic recurrent abdominal pain. The CT showed the characteristic whirl sign of twisted mesentery, the small bowel loops along the superior mesenteric artery and a large sac-like small-bowel diverticulum. A small bowel series also demonstrated a corkscrew appearance of proximal jejunum, a finding suggestive of midgut volvulus, and a large jejunal diverticulum. During the laparotomy, the small bowel was seen twisted counterclockwise 270 .deg.. The mesenteric root was very shortened. A 4 cm sized diverticulum was seen on the mesenteric border of jejunum, on the portion about 40 cm distal from the Treitz ligament.

Imaging findings of midgut volvuIus associated with a large small-bowel diverticulum in an aduIt patient: case report

International Nuclear Information System (INIS)

Kim, Jee Young; Rha, Sung Eun; Oh, Soon Nam; Bo, Seal Hwang; Byun, Jae Young

2004-01-01

Although most patients with jejunoileal diverticulum are asymptomatic, a large, small-bowel diverticulum can be associated with midgut volvulus in an adult. We present a rare case of midgut volvulus that was associated with a large, small-bowel diverticulum in a 77-year-old woman presenting with chronic recurrent abdominal pain. The CT showed the characteristic whirl sign of twisted mesentery, the small bowel loops along the superior mesenteric artery and a large sac-like small-bowel diverticulum. A small bowel series also demonstrated a corkscrew appearance of proximal jejunum, a finding suggestive of midgut volvulus, and a large jejunal diverticulum. During the laparotomy, the small bowel was seen twisted counterclockwise 270 .deg.. The mesenteric root was very shortened. A 4 cm sized diverticulum was seen on the mesenteric border of jejunum, on the portion about 40 cm distal from the Treitz ligament

Radionuclide diagnosis of Meckel's diverticulum

International Nuclear Information System (INIS)

Conway, J.J.; Northwestern Univ., Chicago, IL

1980-01-01

Meckel's diverticulum can be detected with a high degree of accuracy by radionuclide scintigraphy using technetium-99m pertechnetate. The technique is without risk and should precede roentgenographic studies when the diagnosis is suspected. The method is described and the causes for false positive and false negative examinations are discussed. False negatives are rare and false positives are usually secondary to other surgical entities. Overall accuracy is 85 to 90%. (orig.) [de

A Case of Midgut Volvulus Associated with a Jejunal Diverticulum

Directory of Open Access Journals (Sweden)

Joseph Gutowski

2017-01-01

Full Text Available Midgut volvulus in adults is a rare entity that may present with intermittent colicky abdominal pain mixed with completely asymptomatic episodes. This small bowel twist may result in complications of obstruction, ischemia, hemorrhage, or perforation. With a midgut volvulus, complications may be life-threatening, and emergent surgical intervention is the mainstay of treatment. This current case involves an 80-year-old woman with intermittent abdominal pain with increasing severity and decreasing interval of time to presentation. A CAT scan revealed mesenteric swirling with possible internal hernia. A diagnostic laparoscopy followed by laparotomy revealed a midgut volvulus, extensive adhesions involving the root of the mesentery, and a large jejunal diverticulum. The adhesions were lysed enabling untwisting of the bowel, allowing placement of the small bowel in the correct anatomic position and resection of the jejunal diverticulum. This is a rare case of midgut volvulus with intermittent abdominal pain, associated with jejunal diverticulum managed successfully. A midgut volvulus should be considered in the differential diagnosis of a patient who present with a small bowel obstruction secondary to an internal hernia, especially when a swirl sign is present on the CAT scan.

Urethral obstruction from dislodged bladder Diverticulum stones: a case report

Directory of Open Access Journals (Sweden)

Okeke Linus I

2012-11-01

Full Text Available Abstract Background Secondary urethral stone although rare, commonly arises from the kidneys, bladder or are seen in patients with urethral stricture. These stones are either found in the posterior or anterior urethra and do result in acute urinary retention. We report urethral obstruction from dislodged bladder diverticulum stones. This to our knowledge is the first report from Nigeria and in English literature. Case presentation A 69 year old, male, Nigerian with clinical and radiological features of acute urinary retention, benign prostate enlargement and bladder diverticulum. He had a transurethral resection of the prostate (TURP and was lost to follow up. He re-presented with retained urethral catheter of 4months duration. The catheter was removed but attempt at re-passing the catheter failed and a suprapubic cystostomy was performed. Clinical examination and plain radiograph of the penis confirmed anterior and posterior urethral stones. He had meatotomy and antegrade manual stone extraction with no urethra injury. Conclusions Urethral obstruction can result from inadequate treatment of patient with benign prostate enlargement and bladder diverticulum stones. Surgeons in resource limited environment should be conversant with transurethral resection of the prostate and cystolithotripsy or open prostatectomy and diverticulectomy.

Zenker’s diverticulum and squamous esophageal cancer: a case report

Directory of Open Access Journals (Sweden)

Ion Dina

2017-10-01

Full Text Available Zenker’s diverticulum represents a rare esophageal lesion developed especially in the elderly population due to herniation of esophageal mucosa above the cricopharyngeus muscle. The condition leads to food retention, regurgitation, aspiration, and dysphagia in affected patients. Progressive dysphagia also characterizes malignant diseases of the esophagus like squamous esophageal carcinoma that typically appears in male patients in the seventh decade of life, with a history of cigarette smoking and alcohol abuse. We report a case of a male patient who presented with dysphagia for both solids and liquids along with significant weight loss, and who was diagnosed with medium esophageal cancer associated with Zenker’s diverticulum.

Management of congenital bladder diverticulum in children: A report of seven cases.

Science.gov (United States)

Khemakhem, Rachid; Ghorbel, Sofiane; Jlidi, Said; Nouira, Faouzi; Louati, Héla; Douira, Wiem; Chennoufi, Faouzia; Bellagha, Ibtisem; Chaouachi, Béji

2013-01-01

The purpose of the study is to present the author's experience with congenital bladder diverticula in seven pediatric patients at a developing world tertiary care center. Records of seven patients diagnosed and treated as congenital bladder diverticulum, from January 1998 to December 2009 were retrospectively reviewed for age, sex, clinical symptoms, investigative work-up, operative notes, and postoperative follow-up. All patients were males. Age at presentation ranged from six months to six years (mean three years and six months). All were manifested postnatally by urinary tract infection in four cases, bladder retention in three cases and abdominal pain in two cases. Diagnosis was suggested by ultrasound and confirmed by voiding cystourethrography (VCUG) in all cases and urethrocystoscopy in three cases. Open surgical excision of diverticulum was done in all the patients associated with ureteral reimplantation in four patients with VCUG-documented high-grade vesicoureteral reflux (VUR). Average follow-up was four years; there is a resolution of symptoms and no diverticulum recurrence at the defined mean follow-up. Recurrent urinary tract infections and voiding dysfunction in pediatric population should always be evaluated for congenital bladder diverticulum. Investigations such as abdominal ultrasound, VCUG and nuclear renal scanning, form an important part of preoperative diagnostic work-up and postoperative follow up. Diverticulectomy with ureteral reimplantation in case of high-grade reflux, provides good results without recurrence.

Atypical Presentation of Meckel's Diverticulum in a Hispanic Man: A Case Report.

Science.gov (United States)

O'Neill, Yohanis; Soler, Hiram M

2018-04-01

The incidence of Meckel's diverticulum is 2% in the general population. Although most commonly found in children as painless rectal bleeding, in adults, obstruction, inflammation, and perforation are the usual manifestations. We present the case of a 32 year old man who arrived at our institution with hematochezia and symptomatic anemia. A large Meckel's diverticulum was encountered during work-up and treated by segmental small bowel resection. A literature review, including disease presentation, pathology findings, and treatment options is discussed.

Presumed appendiceal abscess discovered to be ruptured Meckel diverticulum following percutaneous drainage

Energy Technology Data Exchange (ETDEWEB)

Yang, Jeannie C.; Ostlie, Daniel J. [Children' s Mercy Hospital, Department of Surgery, Kansas City, MO (United States); Rivard, Douglas C.; Morello, Frank P. [Children' s Mercy Hospital, Department of Radiology, Kansas City, MO (United States)

2008-08-15

A Meckel diverticulum is an embryonic remnant of the omphalomesenteric duct that occurs in approximately 2% of the population. Most are asymptomatic; however, they are vulnerable to inflammation with subsequent consequences including diverticulitis and perforation. We report an 11-year-old boy who underwent laparoscopic appendectomy for perforated appendicitis at an outside institution. During his convalescence he underwent percutaneous drainage of a presumed postoperative abscess. A follow-up drain study demonstrated an enteric fistula. The drain was slowly removed from the abdomen over a period of 1 week. Three weeks following drain removal the patient reported recurrent nausea and abdominal pain. A CT scan demonstrated a 3.7-cm rim-enhancing air-fluid level with dependent contrast consistent with persistent enteric fistula and abscess. Exploratory laparoscopy was performed, at which time a Meckel diverticulum was identified and resected. This case highlights the diagnostic challenge and limitations of conventional radiology in complicated Meckel diverticulum. (orig.)

Cardiac diverticulum and omphalocele: Cantrell's pentalogy or syndrome.

NARCIS (Netherlands)

Halbertsma, F.J.; Oort, A.M. van; Staak, F.H.J.M. van der

2002-01-01

Omphaloceles and left ventricular diverticulums are rare disorders. Although either is known to occur on its own, the combination is highly suggestive of the so-called pentalogy of Cantrell. This syndrome is a combination of deformities involving midline structures, with exteriorisation of the

Dural diverticulum with a symptomatic cerebrospinal fluid leak

Directory of Open Access Journals (Sweden)

Nicholas Armstrong, MD

2016-03-01

Full Text Available A case report of a 63-year-old female patient with a cervical spinal dural diverticulum and intracranial hypotension secondary to a symptomatic CSF leak after minor trauma. The patient responded well after the cervical approach epidural blood patch procedure.

Scintigraphic evaluation of Zenker's diverticulum

Energy Technology Data Exchange (ETDEWEB)

Valenza, Venanzio; Perotti, Germano; Di Giuda, Daniela [Institute of Nuclear Medicine, Policlinico A. Gemelli, Catholic University of Sacred Heart, Largo Gemelli 8, 00168, Rome (Italy); Castrucci, Gioacchino [Department of Surgery, Bel Colle Hospital, Viterbo (Italy); Celi, Giuseppe; Restaino, Gennaro [Institute of Radiology, Catholic University of Sacred Heart, Rome (Italy)

2003-12-01

Zenker's diverticulum (ZD) is a rare pathology, with a prevalence of between 0.01% and 0.11%. Definitive diagnosis of ZD can be accomplished by contrast radiographic examination (barium oesophagogram, BE); oesophageal manometry (ME) is recommended mainly for those patients suffering from dysphagia and/or gastro-oesophageal reflux. The aims of the present study were to assess whether oropharyngo-oesophageal scintigraphy (OPES) is able (a) to visualise ZD and (2) to demonstrate the corresponding alteration in the swallowing phases. We studied 16 patients (nine male, seven female, mean age 67.4 years), and 17 healthy volunteers (ten male, seven female, mean age 53 years) as a control group. All the patients underwent ME, BE and OPES. Nine patients underwent surgery and six of them were re-evaluated after 6 months. We administered 10 ml of water with 37 MBq of technetium-99m colloid through a straw, acquiring 480 sequential images (0.125 s/frame for a total of 60 s) with the patient standing in front of the gamma camera in the 80 right anterior oblique position. Two static images were performed at the end of the dynamic phase, before and after ingestion of 100 ml of unlabelled water to evaluate the presence of inflammation (persistence of radioactivity in the diverticulum or oesophagus). Study of the sequential scintigraphic images and time-activity curves permitted both qualitative (diverticulum visualisation, multiple deglutitions, reflux, presence of inflammation) and quantitative analyses [oral, pharyngeal and oesophageal transit times and retention indexes, tracheal aspiration percentage] of swallowing disorders. OPES showed a good correlation with the results of other diagnostic techniques usually performed in patients with this pathology, and especially with ME in the evaluation of oropharyngeal phase disorders. Furthermore, OPES is a sensitive and simple technique that is well tolerated and entails a low irradiation dose for patients. (orig.)

Congenital Diverticular Disease of the Entire Colon

Directory of Open Access Journals (Sweden)

A. Patel

2013-01-01

Full Text Available Congenital or true colonic diverticulosis is a rare condition typified by the preservation of the colonic wall architecture within the diverticular outpouching. Cases of multiple jejunal diverticula have been reported as well as cases of solitary giant diverticula of the colon. There have been no reports in the literature of pancolonic congenital diverticulosis.

Management of congenital bladder diverticulum in children: A report of seven cases

Directory of Open Access Journals (Sweden)

Rachid Khemakhem

2013-01-01

Full Text Available Background: The purpose of the study is to present the author′s experience with congenital bladder diverticula in seven pediatric patients at a developing world tertiary care center. Materials and Methods: Records of seven patients diagnosed and treated as congenital bladder diverticulum, from January 1998 to December 2009 were retrospectively reviewed for age, sex, clinical symptoms, investigative work-up, operative notes, and postoperative follow-up. Results: All patients were males. Age at presentation ranged from six months to six years (mean three years and six months. All were manifested postnatally by urinary tract infection in four cases, bladder retention in three cases and abdominal pain in two cases. Diagnosis was suggested by ultrasound and confirmed by voiding cystourethrography (VCUG in all cases and urethrocystoscopy in three cases. Open surgical excision of diverticulum was done in all the patients associated with ureteral reimplantation in four patients with VCUG-documented high-grade vesicoureteral reflux (VUR. Average follow-up was four years; there is a resolution of symptoms and no diverticulum recurrence at the defined mean follow-up. Conclusion: Recurrent urinary tract infections and voiding dysfunction in pediatric population should always be evaluated for congenital bladder diverticulum. Investigations such as abdominal ultrasound, VCUG and nuclear renal scanning, form an important part of preoperative diagnostic work-up and postoperative follow up. Diverticulectomy with ureteral reimplantation in case of high-grade reflux, provides good results without recurrence.

Prevalence and distribution of colonic diverticula assessed with CT colonography (CTC)

Energy Technology Data Exchange (ETDEWEB)

De Cecco, Carlo Nicola [University of Rome ' ' Sapienza' ' - Polo Pontino, Department of Radiological Sciences, Oncology and Pathology, Latina (Italy); Medical University of South Carolina, Department of Radiology and Radiological Sciences, Charleston, SC (United States); Ciolina, Maria; Rengo, Marco; Bellini, Davide; Muscogiuri, Giuseppe; Iafrate, Franco; Laghi, Andrea [University of Rome ' ' Sapienza' ' - Polo Pontino, Department of Radiological Sciences, Oncology and Pathology, Latina (Italy); Annibale, Bruno [University of Rome ' ' Sapienza' ' - Sant' Andrea Hospital, Department of Digestive and Liver Disease, Rome (Italy); Maruotti, Antonello [University ' ' Roma Tre' ' , Department of Public Institutions, Economy and Society, Rome (Italy); University of Southampton, Southampton Statistical Sciences Research Institute and School of Mathematics, Southampton (United Kingdom); Saba, Luca [Azienda Ospedaliera Universitaria di Cagliari, Department of Radiology, Cagliari (Italy)

2016-03-15

This study aimed to evaluate the prevalence of colonic diverticula according to age, gender, distribution, disease extension and symptoms with CT colonography (CTC). The study population included 1091 consecutive patients who underwent CTC. Patients with diverticula were retrospectively stratified according to age, gender, clinical symptoms and colonic segment involvement. Extension of colonic diverticula was evaluated using a three-point quantitative scale. Using this data, a multivariate regression analysis was applied to investigate the existence of any correlation among variables. Colonic diverticula were observed in 561 patients (240 men, mean age 68 ± 12 years). Symptomatic uncomplicated diverticular disease (SUDD) was present in 47.4 % of cases. In 25.6 % of patients ≤40 years, at least one diverticulum in the colon was observed. Prevalence of right-sided diverticula in patients >60 years was 14.2 % in caecum and 18.5 % in ascending colon. No significant difference was found between symptomatic and asymptomatic patients regarding diverticula prevalence and extension. No correlation was present between diverticula extension and symptoms. The incidence of colonic diverticula appears to be greater than expected. Right colon diverticula do not appear to be an uncommon finding, with their prevalence increasing with patient age. SUDD does not seem to be related to diverticula distribution and extension. (orig.)

Prevalence and distribution of colonic diverticula assessed with CT colonography (CTC)

International Nuclear Information System (INIS)

De Cecco, Carlo Nicola; Ciolina, Maria; Rengo, Marco; Bellini, Davide; Muscogiuri, Giuseppe; Iafrate, Franco; Laghi, Andrea; Annibale, Bruno; Maruotti, Antonello; Saba, Luca

2016-01-01

This study aimed to evaluate the prevalence of colonic diverticula according to age, gender, distribution, disease extension and symptoms with CT colonography (CTC). The study population included 1091 consecutive patients who underwent CTC. Patients with diverticula were retrospectively stratified according to age, gender, clinical symptoms and colonic segment involvement. Extension of colonic diverticula was evaluated using a three-point quantitative scale. Using this data, a multivariate regression analysis was applied to investigate the existence of any correlation among variables. Colonic diverticula were observed in 561 patients (240 men, mean age 68 ± 12 years). Symptomatic uncomplicated diverticular disease (SUDD) was present in 47.4 % of cases. In 25.6 % of patients ≤40 years, at least one diverticulum in the colon was observed. Prevalence of right-sided diverticula in patients >60 years was 14.2 % in caecum and 18.5 % in ascending colon. No significant difference was found between symptomatic and asymptomatic patients regarding diverticula prevalence and extension. No correlation was present between diverticula extension and symptoms. The incidence of colonic diverticula appears to be greater than expected. Right colon diverticula do not appear to be an uncommon finding, with their prevalence increasing with patient age. SUDD does not seem to be related to diverticula distribution and extension. (orig.)

Incidental Finding of a Neuroendocrine Tumor Arising from Meckel Diverticulum During Hernia Repair - A Case Report and Literature Review.

Science.gov (United States)

Bacalbasa, Nicolae; Costin, Radu; Orban, Carmen; Iliescu, Laura; Hurjui, Ioan; Hurjui, Marcela; Niculescu, Nicoleta; Cristea, Mirela; Balescu, Irina

2016-04-01

Meckel diverticulum is the most common abnormality of the gastrointestinal tract arising from an incomplete obliteration of the vitelline duct during the intrauterine life. Although tumor development in Meckel diverticulum is not a common situation, it can occur due to the persistence of cellular islets with gastric, pancreatic or intestinal origin. The presence of a neuroendocrine tumor arising from Meckel diverticulum is even scarcer. We present the case of a 59-year-old patient in whom a Meckel diverticulum was found during surgery for inguinal hernia; the histopathological and immunohistochemical studies revealed the presence of a well-differentiated neuroendocrine tumor with low mitotic index. Copyright© 2016 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved.

Sodium pertechnetate scintigraphy in detection of Meckel's diverticulum

DEFF Research Database (Denmark)

Poulsen, K A; Qvist, N

2000-01-01

OBJECTIVE: To evaluate the results of 99mTc-Na-pertechnetate scintigraphy in children presenting with symptoms suspicious of Meckel's diverticulum (MD). METHOD: Retrospective study. A total of 55 99mTc-Na-pertechnetate scintigraphies in 53 patients were compared with the results from surgery and ...

Axial Torsion of Gangrenous Meckel's Diverticulum Causing Small ...

African Journals Online (AJOL)

dividing the band. Resection and anastomosis of the small bowel including the MD was performed. We hereby report a rare and unusual complication of a MD. Although treatment outcome is generally good, pre-operative diagnosis is often difficult. Key words: Axial torsion, Meckel's diverticulum, small bowel obstruction.

Medical image of the week: killian-jamieson diverticulum

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Meenakshisundaram C

2014-11-01

Full Text Available No abstract available. Article truncated after 150 words. An 89 year old female nursing home resident with a past medical history of hypertension and coronary artery disease was admitted with generalized weakness and vomiting for two days. Chest x-ray revealed consolidation in the left lung suggestive of pneumonia and she was started on broad spectrum antibiotics. Due to worsening consolidation in both lung fields (Figure 1 a video swallow was done for possible aspiration, which revealed contrast retained within the proximal esophagus within a diverticula in the anterior aspect (Figure 2. After excision of the diverticulum her pneumonia resolved and she was discharged back to the nursing home. Killian-Jamieson diverticulum is a mucosal protrusion through a muscular gap in the anterolateral wall of the cervical esophagus; inferior to the cricopharyngeus and lateral to the longitudinal muscle of the esophagus just below its insertion on the posterior lamina of cricoid cartilage (gap also known as Killian-Jamieson space. This differentiates ...

Inverted Meckel's diverticulum as a cause of occult lower gastrointestinal hemorrhage

Institute of Scientific and Technical Information of China (English)

Omar M Rashid; Joseph K Ku; Masayuki Nagahashi; Akimitsu Yamada; Kazuaki Takabe

2012-01-01

Meckel's diverticulum is a common asymptomatic congenital gastrointestinal anomaly,but rarely it can present with hemorrhage.Over the last few years inverted Meckel's diverticulum has been reported in the literature with increasing frequency as an occult source of lower gastrointestinal hemorrhage.Here,we report a case of a 54-year-old male,who was referred for surgical evaluation with persistent anemia and occult blood per rectum after a work up which failed to localize the source over 12 mo,including upper and capsule endoscopy,colonoscopy,enteroclysis,Meckel scan,and tagged nuclear red blood cell scan.An abdominal computed tomography scan showed a possible mid-ileal intussusception and intraluminal mass.During the abdominal exploration,inverted Meckel's diverticulum was diagnosed and resected.We review the literature,discuss the forms in which the disease presents,the diagnostic modalities utilized,pathological findings,and treatment.Although less than 40 cases have been reported in the English literature from 1978 to 2005,19 cases have been reported in the last 6 years alone (2006-2012) due to improved diagnostic modalities.Successful diagnosis and treatment of this disease requires a high index of clinical suspicion,which is becoming increasingly relevant to general gastroenterologists.

Rectal diverticulum in a terrier dog: A case report

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Hossein Kazemi Mehrjerdi

2013-03-01

Full Text Available Rectal diverticulum is a rare condition in dogs characterized by formation of a pouch orsac due to hernial protrusion of the mucous membranes through a defect in the muscularcoat of the rectum. A 12-year-old male terrier dog was admitted with a history of a leftperineal swelling, dyschezia and tenesmus during the last five months. Digital rectalexamination identified a weakness in the left pelvic diaphragm and feces-filled sac withinthe lateral wall of the rectum. Positive contrast radiography showed a marked solitarydiverticulum (3.5×4×4.5 cm with wide-orifice neck arising from the left rectal wall.Using a lateral approach, a large rectal diverticulum was found and diverticulectomyfollowing standard herniorrhaphy was performed. The dog recovered uneventfully with nosigns of dyschezia during the next three years. Diverticulectomy by lateral approach andperineal herniorrhaphy produced excellent results.

Meckel's diverticulum: the lead point of intrauterine intussusception ...

African Journals Online (AJOL)

management of a newborn with intrauterine intussusception of a Meckel's diverticulum as a cause of the vascular malformation leading to ileal atresia. To our knowledge, this is the fifth case report of this phenomenon. In all cases, definitive management required ... dense collection of small bowel and a small rim of proximal.

Small bowel volvulus with jejunal diverticulum: Primary or secondary?

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Shen, Xiao-Fei; Guan, Wen-Xian; Cao, Ke; Wang, Hao; Du, Jun-Feng

2015-09-28

Small bowel volvulus, which is torsion of the small bowel and its mesentery, is a medical emergency, and is categorized as primary or secondary type. Primary type often occurs without any apparent intrinsic anatomical anomalies, while the secondary type is common clinically and could be caused by numerous factors including postoperative adhesions, intestinal diverticulum, and/or tumors. Here, we report a rare case of a 60-year-old man diagnosed with small bowel volvulus using multidetector computed tomography (MDCT) angiography. Further discovery by laparotomy showed one jejunal diverticulum, longer corresponding mesentery with a narrower insertion, and a lack of mesenteric fat. This case report includes several etiological factors of small bowel volvulus, and we discuss the possible cause of small bowel volvulus in this patient. We also highlight the importance of MDCT angiography in the diagnosis of volvulus and share our experience in treating this disease.

MRI detection of posterior urethral diverticulum following surgical repair of anorectal malformations

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Ishan Kumar

2017-09-01

Full Text Available Aim: To identify and to assess imaging and clinical features of Posterior urethral diverticula (PUD in a single-centre series and include a brief review of literature. Materials and method: Post operative MRI of 140 children from north India were retrospectively reviewed who underwent surgical repair for anorectal malformation (ARM along with the Hospital records. Results: Ten cases had MRI features of posterior urethral diverticulum. All of these patients had undergone primary abdominoperineal pull through (APPT procedure. The lesions ranged between 6 mm and 38 mm in size. Two of these lesions were missed in the post operative MRI report. Only one of these patients was symptomatic and presented with dribbling of urine and gross bilateral vesicoureteric reflux in which the diverticulum was excised surgically. Conclusion: PUD is an under-recognised entity and can be identified in preclinical stage on MRI. Careful assessment of urethra and periurethral structures should be a mandatory step in MRI evaluation of post repair ARM cases. An observational conservative approach in selected asymptomatic patients can be an effective management strategy. Keywords: Posterior urethral diverticulum, MRI, Anorectal malformation

Sigmoid Sinus Diverticulum, Dehiscence, and Venous Sinus Stenosis: Potential Causes of Pulsatile Tinnitus in Patients with Idiopathic Intracranial Hypertension?

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Lansley, J A; Tucker, W; Eriksen, M R; Riordan-Eva, P; Connor, S E J

2017-09-01

Pulsatile tinnitus is experienced by most patients with idiopathic intracranial hypertension. The pathophysiology remains uncertain; however, transverse sinus stenosis and sigmoid sinus diverticulum/dehiscence have been proposed as potential etiologies. We aimed to determine whether the prevalence of transverse sinus stenosis and sigmoid sinus diverticulum/dehiscence was increased in patients with idiopathic intracranial hypertension and pulsatile tinnitus relative to those without pulsatile tinnitus and a control group. CT vascular studies of patients with idiopathic intracranial hypertension with pulsatile tinnitus ( n = 42), without pulsatile tinnitus ( n = 37), and controls ( n = 75) were independently reviewed for the presence of severe transverse sinus stenosis and sigmoid sinus diverticulum/dehiscence according to published criteria. The prevalence of transverse sinus stenosis and sigmoid sinus diverticulum/dehiscence in patients with idiopathic intracranial hypertension with pulsatile tinnitus was compared with that in the nonpulsatile tinnitus idiopathic intracranial hypertension group and the control group. Further comparisons included differing degrees of transverse sinus stenosis (50% and 75%), laterality of transverse sinus stenosis/sigmoid sinus diverticulum/dehiscence, and ipsilateral transverse sinus stenosis combined with sigmoid sinus diverticulum/dehiscence. Severe bilateral transverse sinus stenoses were more frequent in patients with idiopathic intracranial hypertension than in controls ( P tinnitus within the idiopathic intracranial hypertension group. Sigmoid sinus dehiscence (right- or left-sided) was also more common in patients with idiopathic intracranial hypertension compared with controls ( P = .01), but there was no significant association with pulsatile tinnitus within the idiopathic intracranial hypertension group. While our data corroborate previous studies demonstrating increased prevalence of sigmoid sinus diverticulum

Massive Submucosal Ganglia in Colonic Inertia.

Science.gov (United States)

Naemi, Kaveh; Stamos, Michael J; Wu, Mark Li-Cheng

2018-02-01

- Colonic inertia is a debilitating form of primary chronic constipation with unknown etiology and diagnostic criteria, often requiring pancolectomy. We have occasionally observed massively enlarged submucosal ganglia containing at least 20 perikarya, in addition to previously described giant ganglia with greater than 8 perikarya, in cases of colonic inertia. These massively enlarged ganglia have yet to be formally recognized. - To determine whether such "massive submucosal ganglia," defined as ganglia harboring at least 20 perikarya, characterize colonic inertia. - We retrospectively reviewed specimens from colectomies of patients with colonic inertia and compared the prevalence of massive submucosal ganglia occurring in this setting to the prevalence of massive submucosal ganglia occurring in a set of control specimens from patients lacking chronic constipation. - Seven of 8 specimens affected by colonic inertia harbored 1 to 4 massive ganglia, for a total of 11 massive ganglia. One specimen lacked massive ganglia but had limited sampling and nearly massive ganglia. Massive ganglia occupied both superficial and deep submucosal plexus. The patient with 4 massive ganglia also had 1 mitotically active giant ganglion. Only 1 massive ganglion occupied the entire set of 10 specimens from patients lacking chronic constipation. - We performed the first, albeit distinctly small, study of massive submucosal ganglia and showed that massive ganglia may be linked to colonic inertia. Further, larger studies are necessary to determine whether massive ganglia are pathogenetic or secondary phenomena, and whether massive ganglia or mitotically active ganglia distinguish colonic inertia from other types of chronic constipation.

Juxta-Ampullary Intraluminal Diverticulum and Acute Pancreatitis

OpenAIRE

Echenique-Elizondo M

2004-01-01

CONTEXT: Acute pancreatitis is usually due to well-known causes, such as biliary lithiasis and alcohol consumption. Anatomic abnormalities may represent a less frequent but important etiological factor. CASE REPORT: The case of a 27 year old women complaining of acute pancreatitis associated with a large duodenal juxta-papillary diverticulum is presented. CONCLUSIONS: Anatomic causes of pancreatitis must be considered in the diagnosis of the etiology of acute pancreatitis.

Sigmoid sinus diverticulum and pulsatile tinnitus - Analysis of CT scans from 15 cases

International Nuclear Information System (INIS)

Liu, Zhaohui; Wang, Zhenchang; Xian, Junfang; Wang, Yongzhe; Liang, Xihong; Chen, Chengfang; Gong, Shusheng; Ma, Xiaobo; Li, Yi

2013-01-01

Background: Although the imaging features of sigmoid sinus diverticulum induced pulsatile tinnitus (PT) have been presented in some extent, detailed imaging findings still have not been systematically evaluated and precise diagnostic radiographic criteria has not been established. Purpose: To examine the computed tomography (CT) characteristics of sigmoid sinus diverticulum accompanied with PT. Material and Methods: Fifteen PT patients with sigmoid sinus diverticula proven by surgery were recruited after consenting. CT images of 15 patients were obtained and analyzed, including features of diverticula, brain venous systems, integrity of the sigmoid plate, and the degree of temporal bone pneumatization. Results: Sigmoid sinus diverticulum was located on the same side of PT in 15 patients. Diverticula originated at the superior curve of the sigmoid sinus in 11 patients and the descending segment of the sigmoid sinus in four patients. Sigmoid sinus diverticula focally eroded into the adjacent mastoid air cells in 12 patients and mastoid cortex in three patients. Among eight patients with unilateral dominant brain venous systems, the diverticula were seen on the dominant side in seven patients and non-dominant side in one patient. In contrast, the other seven patients showed co-dominant brain venous systems, with three presenting diverticula on the right side and four on the left. More notably, dehiscent sigmoid plate on the PT side was demonstrated in all patients. In addition, temporal bone hyper-pneumatization was found in nine patients, good and moderate pneumatization in three patients, respectively. Conclusion: Dehiscent sigmoid plate and extensive temporal bone pneumatization are two important imaging characteristics of the PT induced by sigmoid sinus diverticulum

Sigmoid sinus diverticulum and pulsatile tinnitus - Analysis of CT scans from 15 cases

Energy Technology Data Exchange (ETDEWEB)

Liu, Zhaohui; Wang, Zhenchang; Xian, Junfang; Wang, Yongzhe; Liang, Xihong [Dept. of Radiology, Capital Medical Univ., Beijing Tongren Hospital, Beijing (China); Chen, Chengfang; Gong, Shusheng; Ma, Xiaobo; Li, Yi [Dept. of Otolaryngology Head and Neck Surgery, Capital Medical Univ., Beijing Tongren Hospital, Beijing (China)

2013-09-15

Background: Although the imaging features of sigmoid sinus diverticulum induced pulsatile tinnitus (PT) have been presented in some extent, detailed imaging findings still have not been systematically evaluated and precise diagnostic radiographic criteria has not been established. Purpose: To examine the computed tomography (CT) characteristics of sigmoid sinus diverticulum accompanied with PT. Material and Methods: Fifteen PT patients with sigmoid sinus diverticula proven by surgery were recruited after consenting. CT images of 15 patients were obtained and analyzed, including features of diverticula, brain venous systems, integrity of the sigmoid plate, and the degree of temporal bone pneumatization. Results: Sigmoid sinus diverticulum was located on the same side of PT in 15 patients. Diverticula originated at the superior curve of the sigmoid sinus in 11 patients and the descending segment of the sigmoid sinus in four patients. Sigmoid sinus diverticula focally eroded into the adjacent mastoid air cells in 12 patients and mastoid cortex in three patients. Among eight patients with unilateral dominant brain venous systems, the diverticula were seen on the dominant side in seven patients and non-dominant side in one patient. In contrast, the other seven patients showed co-dominant brain venous systems, with three presenting diverticula on the right side and four on the left. More notably, dehiscent sigmoid plate on the PT side was demonstrated in all patients. In addition, temporal bone hyper-pneumatization was found in nine patients, good and moderate pneumatization in three patients, respectively. Conclusion: Dehiscent sigmoid plate and extensive temporal bone pneumatization are two important imaging characteristics of the PT induced by sigmoid sinus diverticulum.

Intussusception secondary to Meckel's diverticulum in a 3-month-old girl. Case report

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I. Camacho-Guerrero

2018-04-01

Full Text Available A 3-month-old female patient is presented, with ileo-ileal intussusception secondary to Meckel's diverticulum. The patient underwent emergency surgery due to a diagnosis of intestinal obstruction secondary to intussusception. Resumen: Se reporta caso de paciente femenino de 3 meses de edad, con una intususcepción intestinal íleo-ileal secundario a divertículo de Meckel, intervenida quirúrgicamente de urgencia por diagnóstico de obstrucción intestinal secundario a una invaginación intestinal. Keywords: Intussusception, Meckel's diverticulum, Palabras clave: Intususcepción intestinal, Divertículo Meckel

Severe Hemoperitoneum Following Rupture of Uterine Diverticulum due to Pregnancy: a Case Report

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Yaghmaei Minoo

2009-06-01

Full Text Available Uterovaginal malformations, occur in 0.16% of women and contribute to the problems of infertility, recurrent pregnancy loss, dysmenorrhea, dyspareunia, amenorrhea and a poor outcome in pregnancy. True diverticulum is an exceedingly rare anomaly and is like a tubular formation connected to uterine cavity that ends in a cul-de sac and It is not classified as any of mullerian duct anomalies. In this article a case of uterine diverticulum rupture due to pregnancy in a 19 years old woman with nausea, vomiting and abdominal pain is reported. Although rare, in complicated pregnancy we should think to genital tract anomalies.

Obscure bleeding colonic duplication responds to proton pump inhibitor therapy.

Science.gov (United States)

Jacques, Jérémie; Projetti, Fabrice; Legros, Romain; Valgueblasse, Virginie; Sarabi, Matthieu; Carrier, Paul; Fredon, Fabien; Bouvier, Stéphane; Loustaud-Ratti, Véronique; Sautereau, Denis

2013-09-21

We report the case of a 17-year-old male admitted to our academic hospital with massive rectal bleeding. Since childhood he had reported recurrent gastrointestinal bleeding and had two exploratory laparotomies 5 and 2 years previously. An emergency abdominal computed tomography scan, gastroscopy and colonoscopy, performed after hemodynamic stabilization, were considered normal. High-dose intravenous proton pump inhibitor (PPI) therapy was initiated and bleeding stopped spontaneously. Two other massive rectal bleeds occurred 8 h after each cessation of PPI which led to a hemostatic laparotomy after negative gastroscopy and small bowel capsule endoscopy. This showed long tubular duplication of the right colon, with fresh blood in the duplicated colon. Obscure lower gastrointestinal bleeding is a difficult medical situation and potentially life-threatening. The presence of ulcerated ectopic gastric mucosa in the colonic duplication explains the partial efficacy of PPI therapy. Obscure gastrointestinal bleeding responding to empiric anti-acid therapy should probably evoke the diagnosis of bleeding ectopic gastric mucosa such as Meckel's diverticulum or gastrointestinal duplication, and gastroenterologists should be aware of this potential medical situation.

Efficacy of Combined Laparoscopic and Hysteroscopic Repair of Post-Cesarean Section Uterine Diverticulum: A Retrospective Analysis

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Cuilan Li

2016-01-01

Full Text Available Background. Diverticulum, one of the long-term sequelae of cesarean section, can cause abnormal uterine bleeding and increase the risk of uterine scar rupture. In this study, we aimed to evaluate the efficacy of combined laparoscopic and hysteroscopic repair, a newly occurring method, treating post-cesarean section uterine scar diverticulum. Methods. Data relating to 40 patients with post-cesarean section uterine diverticulum who underwent combined laparoscopic and hysteroscopic repair were retrospectively analyzed. Preoperative clinical manifestations, size of uterine defects, thickness of the lower uterine segment (LUS, and duration of menstruation were compared with follow-up findings at 1, 3, and 6 months after surgery. Results. The average preoperative length and width of uterine diverticula and thickness of the lower uterine segment were recorded and analyzed. The average durations of menstruations at 1, 3, and 6 months after surgery were significantly shorter than the preoperative one (p<0.05, respectively. At 6 months after surgery, the overall success improvement rate of surgery was 90% (36/40. Three patients (3/40 = 7.5% developed partial improvement, and 1/40 (2.5% was lost to follow-up. Conclusions. Our findings showed that combined treatment with laparoscopy and hysteroscopy was an effective method for the repair of post-cesarean section uterine diverticulum.

Meckels diverticulum in children: A 12 years experience in Amir-Kabir children's hospital

OpenAIRE

Pediatric; Acute abdomen; Meckel's diverticulum

1999-01-01

Meckels Diverticulum is the most common congenital anomaly of GI tract. Complications develop in about 4% of cases as an acute abdomen. During the last 12 years, 58 patients with Meckel's diverticulum were treated in Amir-Kabir children's hospital. The majority of our cases (84%, 49 from 58) were under 6 years of age, with boys outnumbering girls (4:1). Intestinal obstruction was the most common form of presentation, included 60% of symptomatic patients and lower GI bleeding was the...

Killian-Jamieson Diverticulum Mimicking a Thyroid Nodule on Ultrasonography: A Case Report

International Nuclear Information System (INIS)

Kim, Eun Soo; Lee, Kwan Seop; Yoon, Hoi Soo; Jeon, Eui Yong; Hwang, Hee Sung; Koh, Sung Hye; Kim, Min Jeong; Jang, Kyung Mi; Lee, Myung Jun; Lee, Yul

2007-01-01

Thyroid ultrasonography is widely used for diagnosis and cytologic evaluation of thyroid nodules. We encountered a case of Killian-Jamieson diverticulum, which was differentiated from a thyroid nodule using ultrasonography

A Rare Case of Strangulated Meckel%u2019s Diverticulum in an Incarcerated Ventral Incisional Hernia

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Murat Kilic

2014-02-01

Full Text Available Incisional or postoperative hernia, one of the most common surgical procedure in general surgery practice, mostly occurs in the first years following abdominal operations. Incarceration or strangulation is a serious complication of these hernias, and mostly requires emergent surgery. Meckel%u2019s diverticulum, the most frequent congenital anomaly of the gastrointestinal tract, is rarely found within a hernial sac and this unusual condition is called as Littre%u2019s hernia. In addition, preoperative diagnosis of this unusual condition is rather difficult and it is almost always first discovered during operation. A small number of cases of strangulated Meckel%u2019s Diverticulum in an incarcerated ventral incisional hernia have been reported in the literature. Herein, we report a strangulated Meckel%u2019s Diverticulum through a ventral incisional hernia in a 65 year-old woman who presented with clinical signs of intestinal obstruction.

Enterovesical fistula, a rare complication of Meckel’s diverticulum: A case report

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Bourguiba M.A.

2017-01-01

Conclusion: Vesico-diverticular fistula resulting from a perforated Meckel's diverticulum is a rare complication. To our knowledge, this is only the fourth reported case which is not associated to inflammatory bowel disease.

Traction esophageal diverticulum: a rare cause of gastro-intestinal bleeding.

Science.gov (United States)

Ballehaninna, Umashankar K; Shaw, Jason P; Brichkov, Igor

2012-12-01

Esophageal diverticula are uncommon lesions that are usually classified according to their location (cervical, thoracic, or epiphrenic), or underlying pathogenesis (pulsion or traction), and their morphology (true or false).The majority of esophageal diverticula are acquired lesions that occur predominantly in elderly adults. Pulsion, or false, diverticula are the most commonly encountered type of esophageal diverticula noticed at the level of cricopharyngeus muscle, occur as a localized outpouchings that lacks a muscular coat, and as such their wall is formed entirely by mucosa and submucosa. True, or traction, esophageal diverticulum (TED) is seen in the middle one third of the thoracic esophagus in a peribronchial location, occurs secondary to mediastinal inflammatory lesions such as tuberculosis or histoplasmosis. The resultant desmoplastic reaction in the paraesophageal tissue causes full thickness pinching on the esophageal wall, producing a conical, broad-mouthed true diverticulum. They often project to the right side because subcarinal lymph nodes in this area are closely associated with the right anterior wall of the esophagus. TED usually presents with symptoms such as dysphagia, postural regurgitation, belching, retrosternal pain, heartburn, and epigastric pain. As in patients with pharyngoesophageal (Zenker's) diverticula, pulmonary symptoms are often present but underestimated in TED patients. These symptoms range from mild nocturnal cough to life-threatening massive aspiration. In this particular report we describe a rare case of TED presenting as a symptomatic upper gastrointestinal bleeding. Diagnostic evaluation of TED includes chest X-ray, barium esophagogram and manometry. A significant proportion of lower esophageal diverticula are associated with motility disorders. Management of TED include treating the underlying cause sometimes a surgical resection of diverticulum along with esophageal myotomy is necessitated in symptomatic patients.

First isolation of microorganisms from the gut diverticulum of Aedes aegypti (Diptera: Culicidae: new perspectives for an insect-bacteria association

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Desiely Silva Gusmão

2007-12-01

Full Text Available We show for the first time that the ventral diverticulum of the mosquito gut (impermeable sugar storage organ harbors microorganisms. The gut diverticulum from newly emerged and non-fed Aedes aegypti was dissected under aseptic conditions, homogenized and plated on BHI medium. Microbial isolates were identified by sequencing of 16S rDNA for bacteria and 28S rDNA for yeast. A direct DNA extraction from Ae. aegypti gut diverticulum was also performed. The bacterial isolates were: Bacillus sp., Bacillus subtilis and Serratia sp. The latter was the predominant bacteria found in our isolations. The yeast species identified was Pichia caribbica.

Female urethral diverticulum. Clinical aspects and a presentation of 15 cases

DEFF Research Database (Denmark)

Jensen, L M; Aabech, J; Lundvall, F

1996-01-01

OBJECTIVE: Fifteen patients with female urethral diverticulum (FUD) were referred during nine years. In order to point out the symptomatology and findings and to evaluate the treatment we have reviewed these patients. METHODS: A retrospective analysis of 15 women treated with transvaginal...

Female urethral diverticulum. Clinical aspects and a presentation of 15 cases

DEFF Research Database (Denmark)

Jensen, L M; Aabech, J; Lundvall, F

1996-01-01

OBJECTIVE: Fifteen patients with female urethral diverticulum (FUD) were referred during nine years. In order to point out the symptomatology and findings and to evaluate the treatment we have reviewed these patients. METHODS: A retrospective analysis of 15 women treated with transvaginal diverti...

Treatment of Zenker's diverticulum through a flexible endoscope with a transparent oblique-end hood attached to the tip and a monopolar forceps

NARCIS (Netherlands)

Christiaens, P.; de Roock, W.; van Olmen, A.; Moons, V.; D'Haens, G.

2007-01-01

Zenker's diverticulum was commonly treated by means of external transcervical diverticulectomy, myotomy or diverticulopexy, or by means of an endoscopic myotomy through a rigid endoscope. Gastroenterologists first described flexible endoscopic therapy for Zenker's diverticulum in 1995. In our

CT findings of early right colonic diverticulitis

International Nuclear Information System (INIS)

Lee, Jong Hwa; Ham, Su Yeon; Whang, Kang Ik

1998-01-01

The purpose of this study is to investigate the CT findings of acute right colonic diverticulitis, and to determine the difference between these and published reports describing left colonic, especially sigmoid, diverticulitis. Inflamed diverticula were visible in all cases, and were solitary. Nine cases occurred in the ascending colon and four in the cecum; in particular, eleven occurred around the ileocecal valve. In three cases, the inflamed diverticulum was less than 1 cm in diameter; in five cases, 1-2 cm; in three, 2-3 cm, and in two, 3-4 cm. These were able to be classified into two major forms. In three cases it was nodular with hyperattenuation and some inhomogeneity, and ten shows the target form with thick walls and a central cavity. In five of these target lesions, the wall pattern was partially or completely inhomogeneous, or multilayered. The material filling the central cavity were gas in five cases, fecalith in two, and fluid in three. Abnormal pericoloic fat infiltrations were seen in twelve cases (92%), segmental colonic wall thickening in eleven (85%), other not-inflamed diverticula in five (38%), mesenteric lymph node enlargement in three (23%), free pericecal fluid collection in three (23%), and perirenal fascial thickening in two (15%). The complications such as remote abscess cavity, colonic obstruction, fistula or perforation were not found. On barium colon study, diverticulitis was in all cases confirmed by the presence of barium in the deformed diversiculum. Among CT findings for acute right colonic diverticulitis, the most important and pathognomonic is inflamed diverticula; the forms of these vary, and include gangrenous diverticulitis. The CT findings of early right colonic diverticulitis in Koreans might not, however, reveal the complications which sigmoid diverticulitis frequently involves; in patients with right lower quadrant pain imaging studies are performed promptly, and for the mesentery, the anatomical base between right and

Impacted “Phytobezoar” at the Base of Meckle's Diverticulum | Gupta ...

African Journals Online (AJOL)

Bezoars have been known to cause obstruction of any portion of the gastrointestinal tract. This case report describes a patient with a surgically treated bezoar impacted at the base of Meckel's diverticulum causing acute intestinal obstruction. In the absence of prior gastric surgery this makes one of the rarest causes of ...

Mediastinal tuberculosis presenting as traction diverticulum of the esophagus

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Rastogi Anurag

2007-01-01

Full Text Available A 7-year-old male presented with history of low-grade fever, epigastric pain and dysphagia. Ultrasound of abdomen and thorax revealed presence of paraesophageal lymphadenopathy. ′Barium swallow′ and computerized tomography scan thorax with oral contrast suggested a provisional diagnosis of paraesophageal diverticulum. Esophagoscopy was normal. Endoscopic ultrasonography with biopsy confirmed tuberculosis. The patient was started on four-drug antitubercular treatment.

A PELVIC MASS - BLADDER DIVERTICULUM WITH HEMORRHAGE IN EHLERS-DANLOS PATIENT

NARCIS (Netherlands)

BADE, JJ; YPMA, AFGVM; VANELK, P; MENSINK, HJA

We report on a case of haemorrhage in a large bladder diverticulum, impressing as a pelvic mass, in a patient with the Ehlers-Danlos syndrome. A review of the literature revealed 14 other cases of bladder diverticula and the Ehlers-Danlos Syndrome. Conservative treatment is first choice, unless

An Unusual Case of Colon Perforation Complicating Acute Pancreatitis

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Anthony A. Aghenta

2009-08-01

Full Text Available Colonic complications of severe acute pancreatitis occur rarely. Although there have been several theories on how pancreatic pseudocysts rupture into the colon, the exact pathogenesis remains unknown. We report an unusual case of pseudocysts complicating severe acute pancreatitis presenting with colonic perforation in a 71-year-old man with a history of chronic mesenteric ischemia. Pressure effects from a giant pseudocyst and intravascular volume depletion with acute insult on chronic mesenteric ischemia are highlighted as possible etiologic factors.

Endoscopic ultrasound with double-balloon endoscopy for the diagnosis of inverted Meckel’s diverticulum: a case report

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Araki Akihiro

2012-09-01

Full Text Available Abstract Introduction Inverted Meckel’s diverticulum has usually been misdiagnosed in the cases based on computed tomography images presented in the literature. The final diagnosis was made intra-operatively or by pathology reports after surgery. Despite this, preoperative diagnosis could be made successfully by using endoscopic ultrasound with double-balloon endoscopy prior to surgery. Case presentation A 60-year-old Japanese woman with severe anemia complained of several episodes of black stool over the preceding 2 years. Abdominal computed tomography showed a 3.0-cm low-density tumor in the ileum, suggesting a diagnosis of intestinal lipoma. Examination of the tumor by endoscopic ultrasound with double-balloon endoscopy revealed a hypo-echoic layer corresponding to the muscularis propria, and a hyper-echoic layer corresponding to the fat tissue. These findings, which suggested that the tumor included areas outside the intestinal serosa, are not typical for a lipoma, despite the existence of a hyper-echoic layer corresponding to fatty tissue. We then considered a diagnosis of inverted Meckel’s diverticulum. Conclusion Lipoma and inverted Meckel’s diverticulum are difficult to differentially diagnose by computed tomography. Polypectomy is the preferred therapeutic approach when a lipoma is present; however, polypectomy in a patient with Meckel’s diverticulum requires full-thickness resection. Situations where polypectomy is performed without preparing for full-thickness resection can be avoided by first making a precise diagnosis using double-balloon endoscopy and endoscopic ultrasound.

Intraluminal duodenal diverticulum: CT and gadoxetic acid-enhanced MRI findings

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Kim, Jeong Myeong; Lee, Nam Kyung; Kim, Suk; Kim, Dong Uk; Kim, Tae Un [Dept. of Radiology, Pusan National University Hospital, Pusan National University School of Medicine, Busan (Korea, Republic of)

2015-03-15

Intraluminal duodenal diverticulum (IDD) is a rare congenital anomaly. IDD can become symptomatic in 20% to 25% of cases when complicated by intestinal obstruction, pancreatitis, or hemorrhage. We report the case of a 21-year-old female presenting with IDD mimicking duodenoduodenal intussusception. We describe the imaging features of IDD on the gadoxetic acid-enhanced magnetic resonance image as well as computed tomography.

Urethral Diverticulum Calculi in a Male: A Case Report

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Emil Gadimaliyev

2013-01-01

Full Text Available A 42-year-old male presented to the urology department, complaining of frequency and dysuria. A large number of calculi were revealed on IVU and USS. On endoscopic investigation, there were 3 stones ( cm found in the bladder and 5 more ( cm in the diverticulum of the posterior urethra. All of the stones were successfully broken down via a transurethral approach. This paper contains a detailed description of the case.

Giant T-shaped duplication of the transverse colon. A case report.

Science.gov (United States)

Trotovsek, Blaz; Hribernik, Marija; Gvardijancic, Diana; Jelenc, Franc

2006-01-01

A case of long diverticular colonic duplication producing acute abdominal pain in a 6-year-old girl is presented. Physical examination showed no signs of acute abdomen at the initial presentation. After a pain-free interval, there was a sudden onset of severe abdominal pain and a large tumor in the lower abdomen was observed. A plain x-ray showed an enormously dilated colonic pouch filled with gas. Excision of the T-shaped duplication and small part of the transverse colon was successful. Because of extensive fibrotic changes in the colon near the opening of duplication, a resection margin of at least 2 cm is recommended.

Bleeding Meckel’s diverticulum in a 4-month-old infant: Treatment with laparoscopic diverticulectomy. A case report and review of the literature

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J Rainer Poley

2009-04-01

Full Text Available J Rainer Poley1, Thomas E Thielen2, Jeffrey C Pence31Clinical Professor of Pediatrics, Section of Pediatric Gastroenterology, Hepatology and Nutrition; 2Resident in Pediatrics; 3Assistant Professor of Surgery and Pediatrics, Section of Pediatric Surgery, Brody School of Medicine, East Carolina University, Greenville, NC, USAAbstract: A bleeding Meckel’s diverticulum is presented in a 4-month-old African American infant. This event is rare at this age, and our patient is only the second 4-month-old infant reported in the English literature. The infant presented with painless frank rectal bleeding, the blood being maroon-colored, and clots were found in the diaper. There was also anemia, with an hemoglobin of less than 8 gm/dl. The color of the blood suggested a bleeding site in the ileocecal region, a Meckel’s diverticulum was suspected, which was then confirmed by an isotope scan. A typical Meckel’s diverticulum was found on laparoscopic surgery, was excised, and the infant made an uneventful recovery. Keywords: infant-bleeding Meckel’s diverticulum, laparoscopic diverticulectomy

The value of repeat scintigraphy in patients with a high clinical suspicion for Meckel diverticulum after a negative or equivocal first Meckel scan

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Vali, Reza; Daneman, Alan; McQuattie, Susan; Shammas, Amer [Hospital for Sick Children, Diagnostic Imaging, Toronto (Canada)

2015-09-15

Technetium {sup 99m}Tc-pertechnetate is the most common and accurate noninvasive method of preoperative investigation for Meckel diverticulum. Despite introducing various methods to increase the sensitivity of the study, there are many case reports of false-negative Meckel scans. A repeat scan is sometimes requested in patients with a high suspicion for Meckel diverticulum and negative or equivocal first Meckel scan. The purpose of this retrospective study is to evaluate the value of repeat scintigraphy for these patients. Seven hundred fifty-three Meckel scans were recorded retrospectively. In 33 cases (22 male and 11 female; mean age: 6.8 years), the Meckel scintigraphy was repeated either due to a high clinical suspicion of Meckel diverticulum and a negative study (n = 21) or due to equivocal findings in the first scan (n = 12). The study was interpreted as positive if an abnormal focal activity was identified in the abdomen and pelvis during the procedure. The results were correlated with pathology and clinical symptoms. Seven out of 12 (58%) equivocal studies were positive on the second study. Six of them were proven to be positive at operation (confirmed by pathology) while one of them was negative on laparoscopy. From 21 negative first scans with a high suspicion for Meckel diverticulum, three (14%) were positive on the second study. All three were proven to be Meckel diverticulum on pathology. Repeat Meckel scans in patients with equivocal findings on the first study or a negative result with a high clinical suspicion for a Meckel diverticulum are useful especially in cases in which the first study had been done without appropriate preparation. (orig.)

Phytobezoar in a jejunal diverticulum as a cause of small bowel obstruction: a case report

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Rauf Fozia

2011-09-01

Full Text Available Abstract Introduction Phytobezoars are concretions of poorly digested fruit and vegetable fibers found in the alimentary tract. Previous gastric resection, gastrojejunostomy, or pyloroplasty predispose people to bezoar formation. Small-bowel bezoars normally come from the stomach, and primary small-bowel bezoars are very rare. They are seen only in patients with underlying small-bowel diseases such as diverticula, strictures, or tumors. Primary small-bowel bezoars almost always present as intestinal obstructions, although it is a very rare cause, being responsible for less than 3% of all small-bowel obstructions in one series. Jejunal diverticula are rare, with an incidence of less than 0.5%. They are usually asymptomatic pseudodiverticula of pulsion type, and complications are reported in 10% to 30% of patients. A phytobezoar in a jejunal diverticulum is an extremely rare presentation. Case presentation A 78-year-old Pakistani man presented to our clinic with small-bowel obstruction. Upon exploration, we found a primary small-bowel bezoar originating in a jejunal diverticulum and causing jejunal obstruction. Resection and anastomosis of the jejunal segment harboring the diverticulum was performed, and our patient had an uneventful recovery. Conclusion Primary small-bowel bezoars are very rare but must be kept in mind as a possible cause of small-bowel obstruction.

Successful Radiofrequency Catheter Ablation for Wolff-Parkinson-White Syndrome Within the Neck of a Coronary Sinus Diverticulum

Science.gov (United States)

Jang, Sung-Won; Kim, Dong-Bin; Kwon, Bum-Jun; Cho, Eun-Joo; Shin, Woo-Seung; Kim, Ji-Hoon; Jin, Seung-Won; Oh, Yong-Seog; Lee, Man-Young; Kim, Jae-Hyung

2009-01-01

Posteroseptal accessory pathways are often associated with coronary sinus diverticula. These diverticula contain myocardial coats which serve as a bypass tract. We report a 54-year-old woman who underwent radiofrequency (RF) catheter ablation for Wolff-Parkinson-White (WPW) syndrome. The surface electrocardiography (ECG) demonstrated pre-excitation, indicating a posteroseptal accessory pathway. A catheter ablation via a transaortic approach failed to ablate the accessory pathway. Coronary sinus venography revealed the presence of a diverticulum near the ostium. An electrogram in the neck of the diverticulum showed the coronary sinus myocardial extension potential, which was successfully ablated by delivery of RF energy. PMID:19949625

Laparoscopic treatment of a phytobezoar in the duodenal diverticulum - Report of a case.

Science.gov (United States)

Pergel, Ahmet; Yucel, Ahmet Fikret; Aydin, Ibrahim; Sahin, Dursun Ali

2012-01-01

Primer small intestine bezoar is seen rarely. It frequently arises from underlying small intestine pathologies (diverticle, tumor, stricture etc.). We report a very rare case of disopyrobezoar in the duodenal diverticulum, a kind of phytobezoar caused by persimmons, which was treated laparoscopically. The 47-year-old patient applied to polyclinic with complaints of epigastric tenderness, occasional distension, and acid regurgitation. In endoscopical examination, impacted bezoar was determined in the diverticulum in the duodenum. Because it is too hard, it was unable to remove endoscopically. On the abdominal tomography, a smooth-bounded non-homogeneous mass including gas and soft tissue areas in the 2nd portion of the duodenum was detected. A barium meal confirmed the presence of a 5cm diameter diverticulum on the lateral wall of the second portion of the duodenum. It also showed an intraluminalfilling defect as well as the mottled appearance of the bezoar. Learned from history of the patient, that the patient consumed over persimmon in childhood. Generally, duodenal diverticles are asymptomatic. Surgical treatment is rarely necessary because of complications such as bleeding, perforation, abdominal pain, bezoar formation. As well as using methods such as gastric lavage, enzymatic dissolution, endoscopical fragmentation in the treatment of phytobezoar, their chances of success are low because its structure is rigid. Usually, surgical intervention is required. For the treatments of bezoar cases located in the small intestine, laparoscopic surgical method is a safe and feasible method in selected cases. Copyright © 2012 Surgical Associates Ltd. Published by Elsevier Ltd. All rights reserved.

Effects of a high jugular fossa and jugular bulb diverticulum on the inner ear

International Nuclear Information System (INIS)

Wadin, K.; Thomander, L.; Wilbrand, H.; Uppsala Univ.

1986-01-01

From a series of patients undergoing routine radiographic examination, 112 temporal bones with a high jugular fossa were selected. Among these, 43 jugular bulb diverticula were found. The structures affected by a high fossa or diverticulum were recorded and correlated to the clinical symptoms of the patient. The vestibule was suspected to be affected in five patients. Two of these patients had tinnitus and vertigo, and three had hearing loss. In one of the latter the hearing loss was most marked in the supine position. The cochlea was close to the fossa in three patients, all of whom had tinnitus. Four patients had a defect of the posterior semicircular canal. One of them lost his hearing after a severe fit of coughing, became unsteady and showed signs of a fistula. The internal acoustic meatus and the mastoid portion of the facial canal were affected in two and four patients, respectively, who had no recorded symptoms. Twelve of 34 patients with Meniere's disease and a high jugular fossa on the side of the diseased ear had a dehiscence of the vestibular aqueduct caused by the fossa or diverticulum, compared with nine of 58 patients in the unselected material. For comparison and demonstration of topographic relationships, 58 casts of unselected radiograhed temporal bone specimens with high jugular fossae or diverticula were investigated. In patients with a high jugular fossa or jugular bulb diverticulum, tomographic assessment may be of value. (orig.)

Localized Giant Inflammatory Polyposis of the Ileocecum Associated with Crohn’s Disease: Report of a Case

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Yuichi Fumimoto

2008-04-01

Full Text Available Although inflammatory polyposis is one of the common complications in patients with inflammatory bowel disease, it is rare that each poly grows up to more than 1.5 cm. We describe a case of localized giant inflammatory polyposis of the ileocecum associated with Crohn’s disease. A 40-year-old man who had been followed for 28 years because of Crohn’s disease was hospitalized for right lower abdominal pain after meals. Barium enema and colonoscopy showed numerous worm-like polyps in the ascending colon which grew up to the hepatic flexure of the colon from the ileocecum, causing an obstruction of the ileocecal orifice. Since histology of a biopsy specimen taken from the giant polyps showed no dysplasia, he was diagnosed with ileus due to the localized giant inflammatory polyposis. A laparoscopically assisted ileocecal resection was performed. The resected specimen showed that the giant polyps grew up into the ileocecum. Histological examination revealed inflammatory polyposis without neoplasm. Generally, conservative treatment is indicated for localized giant inflammatory polyposis because this lesion is regarded as benign. However, occasionally serious complications arise, requiring surgical treatment.

[Right-side aortic arch with aberrant left subclavian artery and Kommerell's diverticulum. A cause of vascular ring].

Science.gov (United States)

Tamayo-Espinosa, Tania; Erdmenger-Orellana, Julio; Becerra-Becerra, Rosario; Balderrabano-Saucedo, Norma; Segura-Standford, Begoña

The right-side aortic arch may be associated with aberrant left subclavian artery, in some cases this artery originates from an aneurismal dilation of the aorta called Kommerell's diverticulum. A report is presented on 2 cases of vascular ring formed by a right-side aortic arch, anomalous left subclavian artery, Kommerell's diverticulum and left patent ductus arteriosus. A review the literature was also performed as regards the embryological development and the imaging methods used to help in the diagnosis of this rare vascular anomaly. Copyright © 2017 Instituto Nacional de Cardiología Ignacio Chávez. Publicado por Masson Doyma México S.A. All rights reserved.

Changes in colonic motility induced by sennosides in dogs: evidence of a prostaglandin mediation.

OpenAIRE

Staumont, G; Fioramonti, J; Frexinos, J; Bueno, L

1988-01-01

The effects of sennosides on colonic motility were investigated in eight conscious dogs chronically fitted with two strain gauge transducers in the proximal colon, an intracolonic silicone catheter and a polyethylene catheter implanted in a branch of the right colonic artery. Oral sennosides (30 mg/kg) inhibited colonic motility for 12 to 18 h after a three to six hours delay, and associated with giant contractions and diarrhoea. The minimal oral dose of sennosides to produce such changes var...

Acute gaseous peritonitis after rupture of a retroperitoneal rectal diverticulum in a dog.

Science.gov (United States)

Saulnier-Troff, F G; De Busscher, V; Hamaide, A

2008-07-01

An 11-year-old, entire male coton de tulear was presented on emergency with acute and severe depression, acute abdominal pain and vomiting of 24 hours duration. Historical complaints included right perineal swelling, dyschezia and tenesmus of 18 months duration. Abdominal ultrasonography and radiography suggested a pneumoperitoneum and positive-contrast colonography showed leakage of contrast medium into the caudal abdomen and the presence of a large retroperitoneal pouch. Exploratory laparotomy allowed the visualisation of faecal leakage from the retroperitoneal space into the peritoneal cavity. Using a perineal approach, a large necrotised rectal diverticulum filled with faeces was found over the retroperitoneal structures. A standard herniorrhaphy was then performed. The dog recovered uneventfully and dyschezia did not recur at the nine month follow-up. Rectal diverticulum rupture associated with peritonitis has not been described in the veterinary literature, to the authors' knowledge, and should be considered as a rare differential diagnosis in dogs being presented with gaseous peritonitis.

Changes in colonic motility induced by sennosides in dogs: evidence of a prostaglandin mediation.

Science.gov (United States)

Staumont, G; Fioramonti, J; Frexinos, J; Bueno, L

1988-01-01

The effects of sennosides on colonic motility were investigated in eight conscious dogs chronically fitted with two strain gauge transducers in the proximal colon, an intracolonic silicone catheter and a polyethylene catheter implanted in a branch of the right colonic artery. Oral sennosides (30 mg/kg) inhibited colonic motility for 12 to 18 h after a three to six hours delay, and associated with giant contractions and diarrhoea. The minimal oral dose of sennosides to produce such changes varied from 5 to 15 mg/kg. Intracolonic sennosides at the minimal effective dose and at 30 mg/kg reproduced the effects of oral sennosides, but with a shorter latency (0.5-1.5 h). Intracolonic PGE2 (100 micrograms/kg) in viscous gel medium or intra-arterial PGE2 (10 micrograms/h) inhibited colonic motility and induced giant contractions often associated with defecation. The colonic motor changes induced by intracolonic sennosides at the minimal effective dose, but not those induced by intracolonic PGE2, were blocked by intra-arterial indomethacin (10 micrograms/h) or piroxicam (5 micrograms/h). These results suggest that colonic motor actions of sennosides are mediated through a local prostaglandins synthesis, as they were blocked by cyclooxygenase inhibitor and reproduced by PGE2. PMID:3197991

Laparoscopic treatment of a phytobezoar in the duodenal diverticulum – Report of a case

Science.gov (United States)

Pergel, Ahmet; Yucel, Ahmet Fikret; Aydin, Ibrahim; Sahin, Dursun Ali

2012-01-01

INTRODUCTION Primer small intestine bezoar is seen rarely. It frequently arises from underlying small intestine pathologies (diverticle, tumor, stricture etc.). We report a very rare case of disopyrobezoar in the duodenal diverticulum, a kind of phytobezoar caused by persimmons, which was treated laparoscopically. PRESENTATION OF CASE The 47-year-old patient applied to polyclinic with complaints of epigastric tenderness, occasional distension, and acid regurgitation. In endoscopical examination, impacted bezoar was determined in the diverticulum in the duodenum. Because it is too hard, it was unable to remove endoscopically. On the abdominal tomography, a smooth-bounded non-homogeneous mass including gas and soft tissue areas in the 2nd portion of the duodenum was detected. A barium meal confirmed the presence of a 5 cm diameter diverticulum on the lateral wall of the second portion of the duodenum. It also showed an intraluminalfilling defect as well as the mottled appearance of the bezoar. Learned from history of the patient, that the patient consumed over persimmon in childhood. DISCUSSION Generally, duodenal diverticles are asymptomatic. Surgical treatment is rarely necessary because of complications such as bleeding, perforation, abdominal pain, bezoar formation. As well as using methods such as gastric lavage, enzymatic dissolution, endoscopical fragmentation in the treatment of phytobezoar, their chances of success are low because its structure is rigid. Usually, surgical intervention is required. CONCLUSION For the treatments of bezoar cases located in the small intestine, laparoscopic surgical method is a safe and feasible method in selected cases. PMID:22659120

Manometria Anorretal no Divertículo de Reto Anorectal Manometry in Rectal Diverticulum

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Carlos Augusto Real Martinez

2010-03-01

Full Text Available Divertículo localizado no reto é um achado excepcional, estimando-se que existam pouco mais de 50 casos publicados. A doença apresenta aspectos controversos, quanto a ser de origem congênita ou adquirida. Recentemente, distúrbios defecação vêm sendo relacionado à maior possibilidade do desenvolvimento da doença. Contudo, até a presente data, as alterações manométricas em portadores de divertículo do reto ainda não foram estudadas. OBJETIVO: O objetivo do presente estudo é demonstrar os resultados de estudo eletromanométrico anorretal, realizado em dois doentes portadores divertículo do reto. CASUÍSTICA E MÉTODO: Um homem e uma mulher, com 56 e 58 anos, respectivamente, foram submetidos à colonoscopia, enema opaco, ultrassonografia endorretal e ressonância magnética da pelve, para confirmação e documentação diagnóstica de divertículo localizado no reto. Os enfermos foram submetidos à eletromanometria anorretal com cateter de oito canais sob perfusão de água a 0,3 ml/min/canal, através de sistema de infusão capilar pneumático e hidráulico. RESULTADOS: O resultado dos exames em ambos os doentes mostrou perfil pressórico esfincteriano normal, tanto em repouso, como em contração voluntária máxima, não se encontrando assimetrias esfincterianas. O reflexo reto-anal inibitório encontrava-se presente e dentro de valores normais, assim como a sensibilidade e complacência retal. A análise pelo vetor volume não mostrou alterações significativas concluindo-se por estudo manométrico ano-retal normal. CONCLUSÃO: O estudo manométrico anorretal não demonstrou existência de distúrbios pressóricos nos esfíncteres anorretais reforçando a possibilidade de que o divertículo de reto possa ter origem congênita, desenvolvendo-se em pontos onde exista maior fraqueza da parede retal.Diverticulum located in the rectum is an exceptional find with fewer than 50 cases published. The etiology of the diverticulum of

Anatomohistological characteristics of Meckel's diverticulum in human fetuses

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Pavlović Snežana

2008-01-01

Full Text Available Background/Aim. Meckel's diverticulum (MD is the most frequent anomaly of the small intestine. It appears after incomplete obliteration of the omphalomesenteric or viteline duct which normally obliterates and disappears by the 9th week of gestation. The majority of MD do not give rise to any clinical symptoms and are encounted either incidentally, at examination or intervention, or due to complications which may occur (obstruction, hemorrhagy, rupture, and are described in many clinical reports. The aim of the study was to find out the incidence of MD in fetuses when the development of the alimentary tract is already finished. Methods. The investigation was performed on 150 human fetuses of different sex and gastational age, using microdissection method. The cases with MD were photographed, described, their positions and dimensions were registered. The samples of MD taken for histological investigation were dyed with hematoksilin eosin method. Results. Meckel's diverticulum was found in five fetuses (three male and two female; in one case the fibrous band was found. All of them were located on animesenteric margine of the small intestine at the average distance of 92.5 mm from the ileocecal junction. They were of different shape and dimensions, but of the normal constitution of the small intestine. Conclusion. The incidence of MD was 3.3%, and 4% of all the anomalies of the intestines connected to the disappearance of the viteline duct. It was more frequent in the male, located on antimesenteric margine of the small intestine, at the destination which highly correlated to the age of the fetus. Meckel's diverticule were of different shapes and dimensions but of the typical constitution of the small intestine. .

Association of two respiratory congenital anomalies: tracheal diverticulum and cystic adenomatoid malformation of the lung

International Nuclear Information System (INIS)

Restrepo, S.; Villamil, M.A.; Rojas, I.C.; Lemos, D.F.; Echeverri, S.; Angarita, M.; Triana, G.

2004-01-01

Many associations of congenital anomalies of the respiratory system have been reported, but the combination of tracheal diverticulum and cystic adenomatoid malformation (CCAM) is unique. We present a patient with these two anomalies and analyze their embryological correlation. (orig.)

Adenocarcinoma arising in female urethral diverticulum

International Nuclear Information System (INIS)

Patanaphan, V.; Prempree, T.; Sewchand, W.; Hafiz, M.A.; Jaiwatana, J.

1983-01-01

Cancer arising from a female urethral diverticulum is rare, and because of its rarity, a review of the medical literature reveals significant nonuniformity in its management. We report an additional 2 cases of this disease, one of which has an even rarer feature of being mucin-producing. The management of our 2 cases is presented in detail and in line with the management of female urethral cancer. From our extensive literature search, diverticulectomy alone showed poor results with the highest rate of recurrence (67%). Extensive surgery, either in the form of cystourethrectomy or anterior exenteration, offered results comparable with those of combined therapy (diverticulectomy and full course of irradiation for early cases; preoperative irradiation followed by cystourethrectomy for late cases). Individualization of radiation treatment and cooperative effort between urologist and radiation oncologist are essential if best results are to be achieved

Axial torsion of meckel's diverticulum causing small bowel obstruction in adult: A case report

Energy Technology Data Exchange (ETDEWEB)

Youn, In Kyung; Lee, Su Lim; Ku, Young Mi [Dept. of Radiology, Uijeongbu St. Mary' s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu (Korea, Republic of)

2016-02-15

Meckel's diverticulum (MD) is the most common congenital abnormality of the gastrointestinal tract that is prevalent in 2–3% of the population. The lifetime risk of complications is estimated at 4%. Small bowel obstruction is the second most common complication of MD. Among the causes of bowel obstruction, axial torsion of MD is the rarest complication. Urgent surgical treatment is needed in cases of small bowel obstruction associated with torsion of MD. Pre-operative diagnosis of MD as a cause of small bowel obstruction is difficult, because the diagnosis can be made only if the diverticulum is delineated at the site of obstruction. We reported a case of axial torsion of MD with necrosis that caused proximal small bowel perforation in a 21 year old male.

Karyotype analysis of a male exhibiting Meckel's diverticulum and aural atresia

Energy Technology Data Exchange (ETDEWEB)

Frizzell, B.; Hicks, M.F. (David Lipscomb Univ., Nashville, TN (United States))

Patau's Syndrome is caused by inheritance of an extra chromosome 13. It is characterized primarily by severe mental retardation, cleft palate, and retarded growth. Most fetuses expressing Patau's Syndrome spontaneously abort, and those that are born usually die before one year. Both Meckel's diverticulum and aural atresia are defects found in patients with Patau's at levels higher than those in the general population. An otherwise asymptomatic male expressing only Meckel's diverticulum and aural atresia has a female sibling whose son expressed Patau's syndrome. Twenty percent of patients with Patau's show a translocation of part of chromosome 13 to another D chromosome. If a translocation were the cause of the expression of Patau's in this family, it is possible that the normal male inherited a balanced translocation and the Patau's male received an unbalanced translocation. A karyotype analysis of the non-Patau's male was done to determine if such a translocation were present.

[A case of enterolith ileus secondary to acute pancreatitis associated with a juxtapapillary duodenal diverticulum].

Science.gov (United States)

Morii, Shinji; Doi, Yoko; Makita, Tomoo; Takeda, Shinichiro; Miura, Seiki; Kaneko, Takaaki; Saito, Shuichi; Okabe, Shinichiro

2015-05-01

A 63-year-old woman with abdominal pain was referred to our hospital. Her pancreatic enzymes were elevated, and an abdominal computed tomography (CT) scan showed an enlarged pancreas, consistent with pancreatitis, and gas collection containing an impacted stone adjacent to Vater's papilla. This finding raised the suspicion of a duodenal diverticulum. A subsequent ERCP showed a juxtapapillary duodenal diverticulum (JPDD) filled with calculi and pus. The pancreatitis improved with 2 weeks of conservative treatment. Subsequently, the patient underwent resection of the uterus and bilateral adnexa to remove a large ovarian cyst that was also identified on the admission CT scan. On the third postoperative day, she developed abdominal pain and vomiting. CT revealed small bowel obstruction caused by an enterolith expelled from JPDD. Enterotomy was performed to remove the stone. To our knowledge, only three similar cases have been previously reported in Japan.

Mesonephroid adenocarcinoma in urethral diverticulum treated with diverticulectomy. Case report and review of the literature

DEFF Research Database (Denmark)

Jacobsen, F; Sørensen, Flemming Brandt; Nielsen, J B

1989-01-01

A case of mesonephroid adenocarcinoma in an urethral diverticulum treated with diverticulectomy in a 53 year old female is reported. To our knowledge 26 cases of similar tumours have been reported in the literature. A review of symptoms, management and possible relationship to nephroid metaplasia...

Long-term results using LigaSure™ 5 mm instrument for treatment of Zenker's diverticulum

DEFF Research Database (Denmark)

Andersen, Michelle Fog; Trolle, Waldemar; Anthonsen, Kristian

2017-01-01

The purpose of the present study was to evaluate the long-term results and patient's satisfaction of a new approach using the LigaSure™ 5 mm instrument for treatment of Zenker's diverticulum (ZD) and to compare with other long-term results using traditional treatment modalities. Between December ...... to traditional endoscopic techniques and is now the standard treatment method for ZD in our departments.......The purpose of the present study was to evaluate the long-term results and patient's satisfaction of a new approach using the LigaSure™ 5 mm instrument for treatment of Zenker's diverticulum (ZD) and to compare with other long-term results using traditional treatment modalities. Between December......%) reported no symptoms at all. Our results suggest that endoscopic management of ZD with the LigaSure™ 5 mm instrument is a minimally invasive, fast and safe method with solid long-term outcome with relief of symptoms and patient satisfaction. This new operative instrument was not found inferior...

Preliminary evaluation of helical CT colonography in detection of colonic diseases compared with double contrast barium enema

International Nuclear Information System (INIS)

Zhai Xiaoli; Zhang Lei; Zhai Renyou; Li Jie; Wang Yajie; Ding Yi

2000-01-01

Objective: To evaluate helical CT colonography in regard to technology principles, limitations, and clinical applications. Methods: Fifty-six patients underwent volume scanning using helical CT. The diseases included adenocarcinoma 39, adenomatous polyp 3, multiple diverticular 7, mucocele of appendix 1, and normal colon 6. All cases had been compared with double contrast barium enema (DCBE), proved by histology except the 6 normal colon and the 7 multiple diverticular. All CTC images were reconstructed using shaded surface display (SSD) on workstation. Then, perspective images such as the ones from DCBE were generated via ray sum. The images could clearly demonstrate the extent and detail of the disorder by using 'CUT' software, 'revolve' function, and zoom. Results: CTC correctly demonstrated 3-5 mm diverticulum, 3 mm ulcer, and 6 mm polyps. Not only show colon straitness clearly, CTC is also very sensitive to demonstrate the stenotic end of masses. In these cases, discovery rate of CTC is 100.0%, the rate of DCBE is 88.6%; CTC is more sensitive than DCBE in cases of tumor nodules. Ray sum can show the boundary of colonic mass extending to both proximal and distal ends, its discovery rate is 62.6%. Accuracy of localization for CTC is 100.0%. Conclusion: CTC is a novel technique for detecting colonic diseases. It is a safe, accurate, and non-invasive means for detection of lesions and is an efficient complement for DCBE. Further development in CTC technique is expected in the future

Laparoscopic diverticulectomy with the aid of intraoperative gastrointestinal endoscopy to treat epiphrenic diverticulum

OpenAIRE

Lei Yu; Ji-xiang Wu; Xiao-hong Chen; Yun-Feng Zhang; Ji Ke

2016-01-01

OBJECTIVE: Most researchers believe that the presence of large epiphrenic diverticulum (ED) with severe symptoms should lead to the consideration of surgical options. The choice of minimally invasive techniques and whether Heller myotomy with antireflux fundoplication should be employed after diverticulectomy became points of debate. The aim of this study was to describe how to perform laparoscopic transhiatal diverticulectomy (LTD) and oesophagomyotomy with the aid of intraoperative gastroin...

Endoscopically removed giant submucosal lipoma

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Jovanović Ivan

2007-01-01

Full Text Available Background. Although uncommon, giant submucosal colon lipomas merit attention as they are often presented with dramatic clinical features such as bleeding, acute bowel obstruction, perforation and sometimes may be mistaken for malignancy. There is a great debate in the literature as to how to treat them. Case report. A patient, 67-year old, was admitted to the Clinic due to a constipation over the last several months, increasing abdominal pain mainly localized in the left lower quadrant accompanied by nausea, vomiting and abdominal distension. Physical examination was unremarkable and the results of the detailed laboratory tests and carcinoembryonic antigen remained within normal limits. Colonoscopy revealed a large 10 cm long, and 4 to 5 cm in diameter, mobile lesion in his sigmoid colon. Conventional endoscopic ultrasound revealed 5 cm hyperechoic lesion of the colonic wall. Twenty MHz mini-probe examination showed that lesion was limited to the submucosa. Since polyp appeared too large for a single transaction, it was removed piecemeal. Once the largest portion of the polyp has been resected, it was relatively easy to place the opened snare loop around portions of the residual polyp. Endoscopic resection was carried out safely without complications. Histological examination revealed the common typical histological features of lipoma elsewhere. The patient remained stable and eventually discharged home. Four weeks later he suffered no recurrent symptoms. Conclusion. Colonic lipomas can be endoscopically removed safely eliminating unnecessary surgery.

Effects of a high jugular fossa and jugular bulb diverticulum on the inner ear. A clinical and radiologic investigation

Energy Technology Data Exchange (ETDEWEB)

Wadin, K.; Thomander, L.; Wilbrand, H.

From a series of patients undergoing routine radiographic examination, 112 temporal bones with a high jugular fossa were selected. Among these, 43 jugular bulb diverticula were found. The structures affected by a high fossa or diverticulum were recorded and correlated to the clinical symptoms of the patient. The vestibule was suspected to be affected in five patients. Two of these patients had tinnitus and vertigo, and three had hearing loss. In one of the latter the hearing loss was most marked in the supine position. The cochlea was close to the fossa in three patients, all of whom had tinnitus. Four patients had a defect of the posterior semicircular canal. One of them lost his hearing after a severe fit of coughing, became unsteady and showed signs of a fistula. The internal acoustic meatus and the mastoid portion of the facial canal were affected in two and four patients, respectively, who had no recorded symptoms. Twelve of 34 patients with Meniere's disease and a high jugular fossa on the side of the diseased ear had a dehiscence of the vestibular aqueduct caused by the fossa or diverticulum, compared with nine of 58 patients in the unselected material. For comparison and demonstration of topographic relationships, 58 casts of unselected radiograhed temporal bone specimens with high jugular fossae or diverticula were investigated. In patients with a high jugular fossa or jugular bulb diverticulum, tomographic assessment may be of value.

Fiberoptic endoscopic-assisted diverticulotomy: a novel technique for the management of Zenker's diverticulum.

Science.gov (United States)

Altman, Jason I; Genden, Eric M; Moche, Jason

2005-05-01

Endoscopic diverticulotomy is rapidly becoming the procedure of choice for treatment of Zenker's diverticulum. The endoscopic approach has resulted in significant decreases in patient morbidity, time to resumption of oral intake, and overall cost as compared with open treatment. However, a small but significant patient population is unable to accommodate the rigid laryngoscope and therefore requires open treatment. We present a novel technique, flexible fiberoptic endoscopic-assisted diverticulotomy, for the management of patients who are unable to undergo rigid endoscopy.

Phytobezoar impaction in a Meckel’s diverticulum; a rare cause of bowel obstruction: Case report and review of literature

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Bassem Abou Hussein

2017-01-01

Conclusion: Complicated Meckel’s diverticulum can have different clinical presentations and can cause bowel obstruction. An association with bezoars impaction is possible and it should be suspected in adult patients presenting with bowel obstruction of unknown causes especially those with high vegetarian diet.

A Right-sided Aortic Arch with Kommerell's Diverticulum of the Aberrant Left Subclavian Artery Presenting with Syncope

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Ming-Hsun Yang

2009-05-01

Full Text Available A right-sided aortic arch with an aneurysm of the aberrant subclavian artery is a rare disease. We report a case of Kommerell's diverticulum of an aberrant left subclavian artery in a patient with a right-sided aortic arch. Fewer than 50 cases have been reported in the literature. A number of operative strategies are described. Right thoracotomy provides good exposure and avoids the morbidity associated with bilateral thoracotomy or sternotomy and thoracotomy. In our patient with symptoms of dysphagia, syncope, and left subclavian steal syndrome, a left thoracotomy was used. The repair was accomplished by division of a left ligamentum arteriosum, obliteration of the Kommerell's aneurysm, and an aorto-subclavian bypass. Postoperative complications included left vocal cord palsy and Horner's syndrome. Hoarseness and left ptosis recovered spontaneously 3 months after surgery, and the patient remained symptom-free at the 1-year follow-up. We believe a left thoracotomy for direct repair of Kommerell's diverticulum is a simple and safe method without the increased morbidity found in other procedures.

Wireless Capsule Endoscopy Detects Meckel’s Diverticulum in a Child with Unexplained Intestinal Blood Loss

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I. Xinias

2012-10-01

Full Text Available Meckel’s diverticulum (MD is the most common congenital anomaly of the gastrointestinal (GI tract, affecting about 2% of the population. Most cases of Meckel’s diverticula are asymptomatic. The diagnosis of symptomatic MD is often difficult to make. We report the case of an 8-year-old boy who presented with GI bleeding due to MD. The diagnostic difficulties after an initial negative endoscopic evaluation and the diagnostic value of the various endoscopic procedures are discussed. The patient had suffered from bright red stools for 20 h before hospital admission. GI scintigraphy with 99mTc-Na-pertechnetate was negative for heterotopic gastric tissue in the small bowel area. Colonoscopy performed in order to exclude Crohn’s disease was also negative. He was placed on ranitidine at a dose of 6 mg/kg body weight twice daily. The patient remained asymptomatic over a period of 6 months before he was readmitted due to macroscopic rectal bleeding. Upper endoscopy and colonoscopy used to investigate the source of bleeding showed normal macroscopic findings. Radiolabeling of blood constituents with 99mTc on delayed imaging showed radionucleotide concentration in the ascending and transverse colon suggestive of a lesion in the ileocecal area. Further investigation with the use of wireless capsule endoscopy revealed a MD. Wireless capsule endoscopy may thus be indicated for patients with GI blood loss when other diagnostic methods, such as upper and lower endoscopy and colonoscopy, have failed to identify the source of bleeding.

Endoscopic resection of large colonic lipomas assisted by a prototype single-use endoloop device

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Ahmad Khosravi Khorashad

2011-01-01

Full Text Available Colonic lipomas are benign adipose tumors that do not usually cause symptoms. Giant colonic lipoma (GCL is an uncommon finding at endoscopy which may lead to iron deficiency anemia (IDA with or without macroscopic ulceration. The choice of therapeutic procedure to treat symptomatic GCLs has been controversial. A case of GCL presented with occult bleeding and IDA is reported in this article. IDA resolved following the successful removal of the GCL by a combination of endoloop ligation and snare cautery technique.

Surgical management of bladder transitional cell carcinoma in a vesicular diverticulum: case report.

LENUS (Irish Health Repository)

Raheem, Omer A

2011-08-01

We report a case of primary transitional cell carcinoma (TCC) of a bladder diverticum along with a literature review. A 55-year-old male presented with painless gross hematuria. A histological diagnosis of TCC within a bladder diverticulum was made following cystoscopical examination. Initially transurethral resection of bladder tumour with subsequent intravesical chemotherapy followed. As a result of recurrence and in view of bladder-sparing therapy, a distal partial cystectomy was performed. This report demonstrates that conservative bladder-sparing treatment can be achieved and subsequently followed by vigilant cystoscopy.

Surgical management of bladder transitional cell carcinoma in a vesicular diverticulum: case report.

LENUS (Irish Health Repository)

Raheem, Omer A

2012-02-01

We report a case of primary transitional cell carcinoma (TCC) of a bladder diverticum along with a literature review. A 55-year-old male presented with painless gross hematuria. A histological diagnosis of TCC within a bladder diverticulum was made following cystoscopical examination. Initially transurethral resection of bladder tumour with subsequent intravesical chemotherapy followed. As a result of recurrence and in view of bladder-sparing therapy, a distal partial cystectomy was performed. This report demonstrates that conservative bladder-sparing treatment can be achieved and subsequently followed by vigilant cystoscopy.

Heterotopic pancreas in Meckel′s diverticulum in a 7-year-old child with intussusception and recurrent gastrointestinal bleeding: Case report and literature review focusing on diagnostic controversies

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Guanà Riccardo

2014-01-01

Full Text Available Meckel′s diverticulum, the most common congenital abnormality of the small intestine, may be associated to heterotopic pancreas, often diagnosed incidentally on histopathological examination. Intussusception affects infants between the ages of 5 and 9 months, but it may also occur in older children, teenagers and adults, and in some cases can be derived by a Meckel′s diverticulum resulting in acute abdomen. We analyse the management and the recent literature on similar cases, describing diagnostic options. In May 2013, a 7-year-old girl admitted to our hospital with recurrent gastrointestinal bleeding, was discovered to have an ileoileal intussusception with a leading Meckel′s diverticulum with heterotopic pancreatic tissue. This association is rare evidence in children and its proper management can be controversial, in particular from a diagnostic point of view. In such cases, preoperative radiological diagnosis can be only suspected in the presence of suggestive signs, more often depicted by ultrasound or computed tomography scan. During laparotomy an accurate exploration of all ileum is recommended, for the possibility to find others heterotopic segments.

Giant pseudopolyposis in ulcerative colitis: Case report and review of literature

OpenAIRE

Marques, Inês; Lagos, Ana; Reis, Jorge; Medeiros, Filomena; Pinto, António; Neves, Beatriz

2012-01-01

Localized giant pseudopolyposis is an extremely rare feature of pseudopolyposis complicating inflammatory bowel disease. It represents a localized exuberant collection of pseudopolyps, which may simulate neoplasms such as polypoid cancer. We report a case of a 23-year-old man with the diagnosis of ulcerative colitis, who presented with symptoms of subacute large bowel obstruction. At colonoscopy a large polypoid lesion was found in the transverse colon, causing almost complete luminal obstruc...

A study of the usefulness of CT in diagnosis of diverticulitis of the right colon and acute appendicitis

International Nuclear Information System (INIS)

Watanabe, Jota; Watanabe, Hideo; Tohyama, Taiji; Kushihata, Fumiki; Kobayashi, Nobuaki

2003-01-01

It is difficult to differentiate between diverticulitis of the right colon and acute appendicitis based on pathological and hematological findings. This study was designed to investigate the usefulness of CT in differentiation between the both diseases and indications of operation. Eight cases of right colon diverticulitis and 39 cases of acute appendicitis undergone abdominal plain CT scan before surgery were enrolled in the study. As for diverticulitis cases, diverticulum was visualized on abdominal CT scan in seven (87.5%) out of the eight cases. Of 39 cases of acute appendicitis, the appendix vermiformis was able to be visualized on abdominal CT scan in 26 (66.7%) cases. Some correlations between CT findings and postoperative pathological diagnosis of appendicitis were observed. A comparison was made on acute appendicitis cases by dividing them into two groups; namely, the non-surgery group comprising of cases pathologically diagnosed as non-inflammatory and catarrhal' and the surgery group comprising of cases diagnosed as 'phlegmonous and gangrenous' after surgery. Statistically significant difference was noted between both groups in two factors, whole-circumferential thickening of the appendiceal wall and fading panniculus adiposus around the appendix. It is concluded that abdominal CT scan is useful for differential diagnosis between right colon diverticulitis and acute appendicitis, and further that CT diagnosis of acute appendicitis well reflects the severity of the disease and contribute to decide indication of operation. (author)

Divertículo epifrénico Epinephrine diverticulum

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Moraima Emilia Vallés Gamboa

2011-06-01

Full Text Available El divertículo epifrénico provocado por el aumento de la presión intraesofágica a causa de alteraciones motoras subyacentes es raro; representa cerca del 10 % de todos los divertículos esofágicos. Se presenta el caso de una paciente de 65 años de edad, que ingresó en el Servicio de Cirugía General con ictericia obstructiva por pancreatitis crónica. Se le realizó una triple derivación de Catell y durante la evolución posoperatoria comenzó a presentar vómitos que contenían alimentos sin digerir, fétidos, ingeridos con horas o días de antelación. Se le realizó una radiografía baritada de esófago, estómago y duodeno, con buen pase de contraste al duodeno, y se observó la presencia de un divertículo epifrénico de gran tamaño, responsable de los síntomas. Fue intervenida quirúrgicamente utilizando como vía de acceso una incisión media previa y vía transhiatal. Se practicó una vagotomía, diverticulectomía, miotomía esofágica extendida, procedimiento antirreflujo y yeyunostomía temporal para la alimentación precoz. La evolución fue favorable y la paciente está hoy asintomática.The epinephrine diverticulum due to the increase of intraesophageal pressure by underlying motor alterations is a rare entity; it accounts for around the 10% of all esophageal diverticula. This is the case of a female patient aged 65 admitted in the General Surgery Service presenting with obstructive jaundice by chronic pancreatitis. A triple Catell's bypass was carried out and during the postoperative course had vomiting containing non-digested fetid foods, ingested many hours or days ago. Barium radiography of esophagus, stomach and duodenum was obtained with a good contrast passage, verifying the presence of a very large epinephrine diverticulum causing the symptoms. She was operated on using as approach route a previous middle incision and trans-hiatal route. A vagotomy, diverticulectomy, extended esophageal myotomy, anti

Browse Title Index

African Journals Online (AJOL)

Items 151 - 200 of 488 ... Vol 8, No 1 (2011), Genitourinary complications as initial presentation of inherited epidermolysis bullosa, Abstract. M Arifi, S Arifi, K Demni, MA Bouhafs, R Belkacem, M Barahioui. Vol 9, No 1 (2012), Giant bladder diverticulum : A rare cause of bladder outlet obstruction in children, Abstract.

Staged management of giant traumatic abdominal wall defect: A rare case report

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Somendra Bansal

2013-12-01

Full Text Available Blunt traumatic abdominal wall disruptions associated with evisceration (abdominal wall injury grade type VI are very rare. We describe a case of large traumatic abdominal wall disruption with bowel evisceration and complete transection of jejunum and sigmoid colon that occurred after a 30-year-old male sustained run over injury to abdomen. Abdominal exploration and primary end to end jejuno-jejunal and colo-colic anastomosis were done. Staged management of giant abdominal wall defect was performed without any plastic reconstruction with good clinical outcome.

Giant grains

International Nuclear Information System (INIS)

Leitch-Devlin, M.A.; Millar, T.J.; Williams, D.A.

1976-01-01

Infrared observations of the Orion nebula have been interpreted by Rowan-Robinson (1975) to imply the existence of 'giant' grains, radius approximately 10 -2 cm, throughout a volume about a parsec in diameter. Although Rowan-Robinson's model of the nebula has been criticized and the presence of such grains in Orion is disputed, the proposition is accepted, that they exist, and in this paper situations in which giant grains could arise are examined. It is found that, while a giant-grain component to the interstellar grain density may exist, it is difficult to understand how giant grains arise to the extent apparently required by the Orion nebula model. (Auth.)

Dissection of Retroesophageal Aortic Diverticulum and Descending Aorta in a Patient with Right Aortic Arch: Magnetic Resonance Demonstration

International Nuclear Information System (INIS)

Ko, S.-F.; Ng, S.-H.; Fu, Morgan; Lo, P.-H.; Cheng, Y.-F.; Lee, T.-Y.

1996-01-01

An acute aortic dissection involved the retroesophageal aortic diverticulum (RAD) and descending thoracic aorta in a patient with right aortic arch. The RAD, which was separated into false and true lumens by an intimal flap-the classic diagnostic sign of aortic dissection-was overlooked on transesophageal echocardiography and computed tomography but was clearly depicted on magnetic resonance imaging (MRI). It was found that MRI can delineate the anatomy of a congenital arch anomaly complicated by great vessels disease

Massive pyuria as an unusual presentation of giant infected urachal ...

African Journals Online (AJOL)

Urachal remnants (URs) are manifestations of an incomplete regression of the urachus; therefore, there may be different types of remnants such as cyst, sinus tract, diverticulum or patent urachus. The clinical presentation of a urachal anomaly includes umbilical discharge, lower abdominal pain and urinary tract infection, ...

Endoscopic needle-knife treatment for symptomatic esophageal Zenker's diverticulum: A meta-analysis and systematic review.

Science.gov (United States)

Li, Lian Yong; Yang, Yong Tao; Qu, Chang Min; Liang, Shu Wen; Zhong, Chang Qing; Wang, Xiao Ying; Chen, Yan; Spandorfer, Robert M; Christofaro, Sarah; Cai, Qiang

2018-04-01

The aim of this study was to assess the efficacy and safety following endoscopic management of Zenker's diverticulum (ZD) using a needle-knife technique. A systematic search of PubMed, Embase and Cochrane library databases was performed. All original studies reporting efficacy and safety of needle-knife technique for treatment of ZD were included. Pooled event rates across studies were expressed with summative statistics. Main outcomes, such as rates of immediate symptomatic response (ISR), adverse events and recurrence, were extracted, pooled and analyzed. Heterogeneity among studies was assessed using the R statistic. The random effects model was used and results were expressed with forest plots and summative statistics. Thirteen studies included 589 patients were enrolled. Pooled event rates for ISR, overall complication, bleeding and perforation were 88% (95% confidence interval [CI] 79-94%), 13% (95% CI 8-22%), 5% (95% CI 3-10%) and 7% (95% CI 4-12%), respectively. The pooled data demonstrated an overall recurrence rate of 14% (95% CI 9-21%). Diverticulum size of at least 4 cm and less than 4 cm demonstrated pooled adverse event rates of 17% (95% CI 10-27%) and 7% (95% CI 2-18%), respectively. When using diverticuloscope as an accessory, pooled ISR and adverse events rates were 84% (95% CI 58-95%) and 10% (95% CI 3-26%), respectively. Flexible endoscopic procedures using needle-knife offers a relatively safe and effective treatment of symptomatic ZD, especially for ZD of <4 cm in diameter. © 2018 Chinese Medical Association Shanghai Branch, Chinese Society of Gastroenterology, Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine and John Wiley & Sons Australia, Ltd.

An unusual case in which a perforated Meckel's diverticulum became trapped in a pericecal hernia: A rare complication of Meckel's diverticulum

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Satohiko Yanagisawa

2015-05-01

Full Text Available An 11-year-old boy had previously been diagnosed with repeated Meckel's diverticulitis at another hospital. Emergency laparoscopy was performed under general anesthesia, and an inflammatory mass was seen in the ileocecal region of the mesentery. However, no Meckel's diverticulum (MD was observed, and so the patient was diagnosed with lymphadenitis. Three days after the operation, he developed anemia and gastrointestinal bleeding of unknown origin. Thus, he was transferred to our hospital for further investigation and to have his gastrointestinal bleeding treated. Based on imaging scans obtained at the previous hospital, a paraduodenal hernia was suspected, but no paraduodenal hernia was detected during emergency surgery, despite the fact that the full length of the normal small intestine could be traced. However, an inflammatory mass was observed, and the ileum appeared to be incarcerated in a pericecal hernia. We could not identify which portion of the intestine had become entrapped or reduce the hernia due to adhesion. The inflammatory mass was removed by ileocecal resection, and a pathological examination revealed that the entrapped portion of the intestine was an MD that had branched off from the small intestine immediately proximal to the ileocecal valve. The MD had perforated in the hernia sac, which had caused the patient's bleeding.

Allometry indicates giant eyes of giant squid are not exceptional.

Science.gov (United States)

Schmitz, Lars; Motani, Ryosuke; Oufiero, Christopher E; Martin, Christopher H; McGee, Matthew D; Gamarra, Ashlee R; Lee, Johanna J; Wainwright, Peter C

2013-02-18

The eyes of giant and colossal squid are among the largest eyes in the history of life. It was recently proposed that sperm whale predation is the main driver of eye size evolution in giant squid, on the basis of an optical model that suggested optimal performance in detecting large luminous visual targets such as whales in the deep sea. However, it is poorly understood how the eye size of giant and colossal squid compares to that of other aquatic organisms when scaling effects are considered. We performed a large-scale comparative study that included 87 squid species and 237 species of acanthomorph fish. While squid have larger eyes than most acanthomorphs, a comparison of relative eye size among squid suggests that giant and colossal squid do not have unusually large eyes. After revising constants used in a previous model we found that large eyes perform equally well in detecting point targets and large luminous targets in the deep sea. The eyes of giant and colossal squid do not appear exceptionally large when allometric effects are considered. It is probable that the giant eyes of giant squid result from a phylogenetically conserved developmental pattern manifested in very large animals. Whatever the cause of large eyes, they appear to have several advantages for vision in the reduced light of the deep mesopelagic zone.

Right Ventricular Outflow Tract Tachycardia with Structural Abnormalities of the Right Ventricle and Left Ventricular Diverticulum

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Bortolo Martini

2015-01-01

Full Text Available A 43-year-old woman presented to the emergency room with a sustained ventricular tachycardia (VT. ECG showed a QRS in left bundle branch block morphology with inferior axis. Echocardiography, ventricular angiography, and cardiac magnetic resonance imaging (CMRI revealed a normal right ventricle and a left ventricular diverticulum. Electrophysiology studies with epicardial voltage mapping identified a large fibrotic area in the inferolateral layer of the right ventricular wall and a small area of fibrotic tissue at the anterior right ventricular outflow tract. VT ablation was successfully performed with combined epicardial and endocardial approaches.

Kynurenic acid inhibits intestinal hypermotility and xanthine oxidase activity during experimental colon obstruction in dogs.

Science.gov (United States)

Kaszaki, J; Palásthy, Z; Erczes, D; Rácz, A; Torday, C; Varga, G; Vécsei, L; Boros, M

2008-01-01

Kynurenic acid (KynA), an endogenous antagonist of N-methyl-d-aspartate (NMDA) glutamate receptors, protects the central nervous system in excitotoxic neurological diseases. We hypothesized that the inhibition of enteric glutamate receptors by KynA may influence dysmotility in the gastrointestinal tract. Group 1 of healthy dogs served as the sham-operated control, in group 2, the animals were treated with KynA, while in groups 3 and 4 mechanical colon obstruction was maintained for 7 h. Group 4 was treated with KynA at the onset of ileus. Hemodynamics and motility changes were monitored, and the activities of xanthine oxidoreductase (XOR) and myeloperoxidase (MPO) were determined from tissue samples. Colon obstruction induced a hyperdynamic circulatory reaction, significantly elevated the motility index and increased the mucosal leucocyte accumulation and the XOR activity. The KynA treatment augmented the tone of the colon, permanently decreased the motility index of the giant colonic contractions and reduced the increases in XOR and MPO activities. These effects were concomitant with the in vitro inhibition of XOR activity. In conclusion, KynA antagonizes the obstruction-induced motility responses and XOR activation in the colon. Inhibition of enteric NMDA receptors may provide an option to influence intestinal hypermotility and inflammatory changes.

Genomic diversification of giant enteric symbionts reflects host dietary lifestyles

KAUST Repository

Ngugi, David

2017-08-24

Herbivorous surgeonfishes are an ecologically successful group of reef fish that rely on marine algae as their principal food source. Here, we elucidated the significance of giant enteric symbionts colonizing these fishes regarding their roles in the digestive processes of hosts feeding predominantly on polysiphonous red algae and brown Turbinaria algae, which contain different polysaccharide constituents. Using metagenomics, single-cell genomics, and metatranscriptomic analyses, we provide evidence of metabolic diversification of enteric microbiota involved in the degradation of algal biomass in these fishes. The enteric microbiota is also phylogenetically and functionally simple relative to the complex lignocellulose-degrading microbiota of terrestrial herbivores. Over 90% of the enzymes for deconstructing algal polysaccharides emanate from members of a single bacterial lineage,

Zapping Zenker’s Diverticulum: Gastroscopic Treatment

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Chris JJ Mulder

1999-01-01

Full Text Available Zenker’s diverticulum (ZD is a common cause of dysphagia in the elderly. Many symptomatic elderly are poor candidates for surgery and/or ear, nose and throat treatment. The author’s first experiences with gastroscopic treatment by cutting the Zenker bridge to allow an overflow have recently been published. Only patients with contraindications for general anesthesia were accepted to the pilot group. However, the author now treats all ZD patients in this manner. One hundred and twenty-five patients (male to female ratio 1.6 were referred for treatment from 1993 to 1997. After introduction of the gastroscope into the esophagus, a nasogastric tube was positioned to treat a ZD bridge with a height of less than 1 cm. The ZD bridge was divided by argon plasma coagulation, if necessary, in combination with monopolar forceps, Savary dilator and/or precut needle. All patients received antibiotics, topical anesthesia to the throat, if necessary, and intravenous midazolam, if possible. Radiography was performed after treatment. Normalization of the diet was allowed when the x-ray showed no signs of leakage. All patients referred for treatment were treated successfully. The median age was 77 years (range 41 to 100 years. Symptomatic improvement was seen in all patients after treatment. Complications included subcutaneous emphysema (n=17, mediastinal emphysema (n=5 and bleeding (n=2. One patient (95 years of age died in her nursing home 27 days after treatment due to massive pulmonary embolism. The thirty-day mortality rate was otherwise zero. Three patients had been previously treated by surgeons and 12 by ear, nose and throat physicians, without sufficient improvement; all were adequately treated by the author. The mean number of treatment sessions was 1.8. This approach seems safe and effective. Treatment of every patient was possible and was carried out, even in patients in very poor condition, without general anesthesia.

THE REDSHIFT DISTRIBUTION OF GIANT ARCS IN THE SLOAN GIANT ARCS SURVEY

International Nuclear Information System (INIS)

Bayliss, Matthew B.; Gladders, Michael D.; Koester, Benjamin P.; Oguri, Masamune; Hennawi, Joseph F.; Sharon, Keren; Dahle, Haakon

2011-01-01

We measure the redshift distribution of a sample of 28 giant arcs discovered as a part of the Sloan Giant Arcs Survey. Gemini/GMOS-North spectroscopy provides precise redshifts for 24 arcs, and 'redshift desert' constrains for the remaining 4 arcs. This is a direct measurement of the redshift distribution of a uniformly selected sample of bright giant arcs, which is an observable that can be used to inform efforts to predict giant arc statistics. Our primary giant arc sample has a median redshift z = 1.821 and nearly two-thirds of the arcs, 64%, are sources at z ∼> 1.4, indicating that the population of background sources that are strongly lensed into bright giant arcs resides primarily at high redshift. We also analyze the distribution of redshifts for 19 secondary strongly lensed background sources that are not visually apparent in Sloan Digital Sky Survey imaging, but were identified in deeper follow-up imaging of the lensing cluster fields. Our redshift sample for the secondary sources is not spectroscopically complete, but combining it with our primary giant arc sample suggests that a large fraction of all background galaxies that are strongly lensed by foreground clusters reside at z ∼> 1.4. Kolmogorov-Smirnov tests indicate that our well-selected, spectroscopically complete primary giant arc redshift sample can be reproduced with a model distribution that is constructed from a combination of results from studies of strong-lensing clusters in numerical simulations and observational constraints on the galaxy luminosity function.

Giant CP stars

International Nuclear Information System (INIS)

Loden, L.O.; Sundman, A.

1989-01-01

This study is part of an investigation of the possibility of using chemically peculiar (CP) stars to map local galactic structure. Correct luminosities of these stars are therefore crucial. CP stars are generally regarded as main-sequence or near-main-sequence objects. However, some CP stars have been classified as giants. A selection of stars, classified in literature as CP giants, are compared to normal stars in the same effective temperature interval and to ordinary 'non giant' CP stars. There is no clear confirmation of a higher luminosity for 'CP giants', than for CP stars in general. In addition, CP characteristics seem to be individual properties not repeated in a component star or other cluster members. (author). 50 refs., 5 tabs., 3 figs

Torsion of Atypical Meckel’s Diverticulum Treated by Laparoscopic-Assisted Surgery

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Atsushi Kohga

2017-01-01

Full Text Available Introduction. Meckel’s diverticulum (MD is the most common congenital anomaly of the intestine, with an incidence of 2~4%. Of those, only 2% of patients with MD are symptomatic. Torsion of MD is extremely rare, and only a dozen cases have been previously reported. Case Report. The patient was a 49-year-old male who presented to our emergency room with a chief complaint of lower abdominal pain. Computed tomography imaging revealed an irregular polycystic mass connected to the small intestine that measured 7.5 cm in a diameter. A laparoscopic-assisted partial resection of the jejunum was performed. The lesion was found to have caused torsion and was located 130 cm from the ileocecal valve. The specimen was polycystic in appearance and showed communicating links with the submucosal layer of jejunum but not with the lumen. The pathological diagnosis was a torsion of an atypical presentation of MD. Conclusion. This case was different from typical cases of MD in that it was located on significantly oral side and had the appearance of polycystic morphology.

Association between idiopathic intracranial hypertension and sigmoid sinus dehiscence/diverticulum with pulsatile tinnitus: a retrospective imaging study

Energy Technology Data Exchange (ETDEWEB)

Zhaohui, Liu; Qing, Li [Capital Medical University, Beijing Tongren Hospital, Department of Radiology, Beijing (China); Cheng, Dong; Xiao, Wang; Xiaoyi, Han; Pengfei, Zhao; Han, Lv; Zhenchang, Wang [Capital Medical University, Beijing Friendship Hospital, Department of Radiology, Beijing (China)

2015-07-15

The mechanism of occurrence of sigmoid sinus dehiscence/diverticulum (SSDD) in pulsatile tinnitus (PT) patients remains under debate. Its association with idiopathic intracranial hypertension (IIH) lacks evidence, which is important for therapeutic planning and improving the clinical outcome. This study aimed to evaluate the association between SSDD and IIH by comparing the prevalence of several established imaging features of IIH between PT patients with SSDD and healthy volunteers. Thirty-three unilateral PT patients with SSDD identified on CT images and 33 age- and sex-matched healthy volunteers underwent T1-weighted volumetric magnetic resonance imaging (MRI). The optic nerve, pituitary gland, transverse sinus, and ventricles were assessed. The prevalence of established IIH imaging features was compared between the two groups. Furthermore, the PT patients were divided into two subgroups: PT patients with dehiscence only and PT patients with diverticulum. The same statistical analysis was performed on each pathophysiologic entity respectively. The PT patients with SSDD showed a significantly higher prevalence of empty sella (P < 0.001), flattened posterior sclera (P = 0.001), vertical tortuosity of the optic nerve (P = 0.001), protrusion of the optic nerve (P = 0.006), transverse sinus stenosis (P = 0.011), and distension of the optic nerve sheath (P = 0.000). There were no significant differences between the PT and control groups in the maximum widths of the third and fourth ventricles and the lateral ventricle size. In contrast to controls, the imaging findings persisted in both of pathophysiologic entities, except for transverse sinus stenosis. Several IIH imaging features occur more frequently in PT patients with SSDD than in healthy individuals, which suggests a potential correlation between SSDD with PT and IIH. (orig.)

Association between idiopathic intracranial hypertension and sigmoid sinus dehiscence/diverticulum with pulsatile tinnitus: a retrospective imaging study

International Nuclear Information System (INIS)

Zhaohui, Liu; Qing, Li; Cheng, Dong; Xiao, Wang; Xiaoyi, Han; Pengfei, Zhao; Han, Lv; Zhenchang, Wang

2015-01-01

The mechanism of occurrence of sigmoid sinus dehiscence/diverticulum (SSDD) in pulsatile tinnitus (PT) patients remains under debate. Its association with idiopathic intracranial hypertension (IIH) lacks evidence, which is important for therapeutic planning and improving the clinical outcome. This study aimed to evaluate the association between SSDD and IIH by comparing the prevalence of several established imaging features of IIH between PT patients with SSDD and healthy volunteers. Thirty-three unilateral PT patients with SSDD identified on CT images and 33 age- and sex-matched healthy volunteers underwent T1-weighted volumetric magnetic resonance imaging (MRI). The optic nerve, pituitary gland, transverse sinus, and ventricles were assessed. The prevalence of established IIH imaging features was compared between the two groups. Furthermore, the PT patients were divided into two subgroups: PT patients with dehiscence only and PT patients with diverticulum. The same statistical analysis was performed on each pathophysiologic entity respectively. The PT patients with SSDD showed a significantly higher prevalence of empty sella (P < 0.001), flattened posterior sclera (P = 0.001), vertical tortuosity of the optic nerve (P = 0.001), protrusion of the optic nerve (P = 0.006), transverse sinus stenosis (P = 0.011), and distension of the optic nerve sheath (P = 0.000). There were no significant differences between the PT and control groups in the maximum widths of the third and fourth ventricles and the lateral ventricle size. In contrast to controls, the imaging findings persisted in both of pathophysiologic entities, except for transverse sinus stenosis. Several IIH imaging features occur more frequently in PT patients with SSDD than in healthy individuals, which suggests a potential correlation between SSDD with PT and IIH. (orig.)

[Urethral diverticulum. Our casuistic and the literatura review].

Science.gov (United States)

Ramírez Backhaus, M; Trassierra Villa, M; Broseta Rico, E; Gimeno Argente, V; Arlandis Guzmán, S; Alonso Gorrea, M; Jiménez Cruz, J F

2007-09-01

The possible etiopathogenic factors, symptoms, diagnostic methods, surgical management and complications of the urethral diverticula are reviewed. A retrospective study of the clinical charts with urethral diverticula diagnosis during the period 1986-2006 was carried out. In the last 20 years a total of 19 patients have been treated for this pathology: 15 females and 4 males. Five of the females started with a sensation of vaginal mass; the rest were diagnosed of micturitional (irritative) syndrome, urinary incontinence or urinary infection. In the case of males, 3 of them had a palpable tumour in the penis. The most used diagnostic method was retrograde and voiding cystourethrography; urethrography with double-occlusion balloon catheter was used in 5 cases and urethroscopy in 4 patients; other techniques of image diagnosis like magnetic resonance imaging were necessary for the most complex cases. The treatment was the excision of the diverticulum, except for one of the females who rejected the treatment. The evolution in all treated women was successful, according to follow up 2 years after the treatment. In males, two of them had complex recurrent diverticula. Urethral diverticula are nosologic entities of difficult diagnosis, due to their low prevalence and their unspecific clinic, therefore diagnosis is sometimes incidental. The etiopathogenity is acquired in most cases and its surgical treatment is more challenging in males than in females probably linked to the fact that diverticula appear in urethras with previous surgery, endourologic manipulation or associated injuries.

Rapid formation of gas giants, ice giants and super-Earths

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Boss, A P [DTM, Carnegie Institution of Washington, 5241 Broad Branch Road, NW, Washington, DC 20015 (United States)], E-mail: boss@dtm.ciw.edu

2008-08-15

Giant planets might have been formed by either of the two basic mechanisms, top-down (disk instability) or bottom-up (core accretion). The latter mechanism is the most generally accepted mechanism and it begins with the collisional accumulation of solid cores that may then accrete sufficient gas to become gas giants. The former mechanism is more heretical and begins with the gravitational instability of the protoplanetary disk gas, leading to the formation of self-gravitating protoplanets, within which the dust settles to form a solid core. The disk instability mechanism has been thought of primarily as a mechanism for the formation of gas giants, but if it occurs in a disk that is being photoevaporated by the ultraviolet radiation from nearby massive stars, then the outer gaseous protoplanets can be photoevaporated as well and stripped of their gaseous envelopes. The result would then be ice giants (cold super-Earths), such as the objects discovered recently by microlensing orbiting two presumed M dwarf stars. M dwarfs that form in regions of future high-mass star formation would be expected to produce cold super-Earths orbiting at distances of several astronomical units (AU) and beyond, while M dwarfs that form in regions of low-mass star formation would be expected to have gas giants at those distances. Given that most stars are born in the former rather than in the latter regions, M dwarfs should have significantly more super-Earths than gas giants on orbits of several AU or more.

Rapid formation of gas giants, ice giants and super-Earths

International Nuclear Information System (INIS)

Boss, A P

2008-01-01

Giant planets might have been formed by either of the two basic mechanisms, top-down (disk instability) or bottom-up (core accretion). The latter mechanism is the most generally accepted mechanism and it begins with the collisional accumulation of solid cores that may then accrete sufficient gas to become gas giants. The former mechanism is more heretical and begins with the gravitational instability of the protoplanetary disk gas, leading to the formation of self-gravitating protoplanets, within which the dust settles to form a solid core. The disk instability mechanism has been thought of primarily as a mechanism for the formation of gas giants, but if it occurs in a disk that is being photoevaporated by the ultraviolet radiation from nearby massive stars, then the outer gaseous protoplanets can be photoevaporated as well and stripped of their gaseous envelopes. The result would then be ice giants (cold super-Earths), such as the objects discovered recently by microlensing orbiting two presumed M dwarf stars. M dwarfs that form in regions of future high-mass star formation would be expected to produce cold super-Earths orbiting at distances of several astronomical units (AU) and beyond, while M dwarfs that form in regions of low-mass star formation would be expected to have gas giants at those distances. Given that most stars are born in the former rather than in the latter regions, M dwarfs should have significantly more super-Earths than gas giants on orbits of several AU or more

Giant Cell Arteritis

Science.gov (United States)

Giant cell arteritis is a disorder that causes inflammation of your arteries, usually in the scalp, neck, and arms. ... arteries, which keeps blood from flowing well. Giant cell arteritis often occurs with another disorder called polymyalgia ...

Small cell carcinoma of the urinary bladder diverticulum: A case report and review of the literature

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Wu Xu Dong

2013-01-01

Full Text Available Small cell carcinoma of the urinary bladder is very rare. Small cell carcinoma of the urinary bladder is a mass with swiftly aggressive and metastatic, and with a poor prognosis. Due to its scarcity, no forward-looking researches assessing the most effective treatment have been issued in the medical literature. It can happen either in connection with urothelial (transitional cell carcinoma or in a pure form. Its treatment should include surgery, chemotherapy and radiotherapy. In this article,we report a case occurring in a mixed form in the urinary bladder diverticulum and we concisely review the published literature with respect to the clinical manifestation, pathology,differential diagnosis, treatment and prognosis.

Isolated inferior mesenteric portal hypertension with giant inferior mesenteric vein and anomalous inferior mesenteric vein insertion

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G Raghavendra Prasad

2013-01-01

Full Text Available Extrahepatic portal hypertension is not an uncommon disease in childhood, but isolated inferior mesenteric portal varices and lower gastrointestinal (GI bleed have not been reported till date. A 4-year-old girl presented with lower GI bleed. Surgical exploration revealed extrahepatic portal vein obstruction with giant inferior mesenteric vein and colonic varices. Inferior mesenteric vein was joining the superior mesenteric vein. The child was treated successfully with inferior mesenteric - inferior vena caval anastomosis. The child was relieved of GI bleed during the follow-up.

Colon cancer

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Colorectal cancer; Cancer - colon; Rectal cancer; Cancer - rectum; Adenocarcinoma - colon; Colon - adenocarcinoma; Colon carcinoma ... eat may play a role in getting colon cancer. Colon cancer may be linked to a high-fat, ...

20 years' experience in the management of Zenker's diverticulum in a third-level hospital Experiencia de 20 años en el manejo del divertículo de Zenker en un hospital de 3er nivel

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J. Ruiz-Tovar

2006-06-01

Full Text Available Zenker's diverticulum arises in the posterior wall of the pharynx, above the cricopharyngeal muscle, secondary to a functional cricopharyngeal disorder. We describe our experience with the management of Zenker's diverticulum from 1985 to this day in a third-level hospital. We review clinical data from 27 patients (78% males with a mean age of 60.4 years. The most common clinical manifestations were dysphagia, regurgitation, syalorrhea, cough, and weight loss. All cases were diagnosed using an esophagogram. A diverticulectomy with cricopharingeal myotomy was performed in 74% of patients. Complications developed in 5 cases (21%, and the recurrence rate was 4% (1 of 3 cases, where myotomy was not performed.

Feasibility and usefulness of using swallow contrast-enhanced ultrasound to diagnose Zenker's diverticulum: preliminary results.

Science.gov (United States)

Cui, Xin-Wu; Ignee, Andre; Baum, Ulrich; Dietrich, Christoph F

2015-04-01

Zenker's diverticulum (ZD) may be misdiagnosed on conventional ultrasound as a thyroid nodule or other lesion. A barium esophagram is usually used to confirm the diagnosis; however, this procedure exposes the patient to radiation. The aim of this study was to evaluate the feasibility of using swallow contrast-enhanced ultrasound (swallow-CEUS) to diagnose ZD. Ten consecutive patients with ZD (7 men and 3 women, aged 67 ± 11 y) were included in the study. In 4 patients, ZD was incidentally found on head and neck ultrasound, and in 6 patients, ZD was suspected because of dysphagia. All lesions could be detected on conventional ultrasound before swallow-CEUS. Ten healthy volunteers (8 men and 2 women, aged 60 ± 12 y) were chosen as a control group. Written informed consent was obtained. With the patient in the sitting or upright position, conventional ultrasound was performed first to image the lesion, then the patient was asked to swallow ultrasound contrast agent (UCA) (2-4 drops of SonoVue diluted with about 200 mL of tap water). Transity of the contrast agent in the esophagus was imaged with CEUS. Retention of the UCA in the diverticulum was monitored for at least 3 min. All patients underwent a barium esophagram as the gold standard. Swallow-CEUS revealed that in all patients (100%), the UCA was transported from the pharynx to the esophagus while the patient swallowed. ZD appeared as a pouch-shaped structure at the posterior pharyngo-esophageal junction that retained UCA longer than 3 min. The barium esophagram confirmed the diagnosis of ZD in all patients. For the 10 volunteers, no abnormal structure (retaining UCA) was detected during or after swallowing of UCA. With the advantages of no radiation and bedside availability, swallow-CEUS may become a method of choice in confirmation of the diagnosis of ZD, especially when ZD is suspected on conventional ultrasound. Copyright © 2015 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier

Traumatic tracheal diverticulum corrected with resection and anastomosis during one-lung ventilation and total intravenous anesthesia in a cat.

Science.gov (United States)

Sayre, Rebecca S; Lepiz, Mauricio; Wall, Corey; Thieman-Mankin, Kelley; Dobbin, Jennifer

2016-11-01

This report describes the clinical findings and diagnostic images of a traumatic intrathoracic tracheal avulsion with a tracheal diverticulum in a cat. Furthermore, a complete description of the tracheal resection and anastomosis using one-lung ventilation (OLV) with total and partial intravenous anesthesia is made. A 3-year-old neutered male domestic shorthair cat weighing 6.8 kg was presented to the University Teaching Hospital for evaluation of increased respiratory noise 3 months following unknown trauma. Approximately 12 weeks prior to presentation, the cat had been seen by the primary care veterinarian for respiratory distress. At that time, the cat had undergone a tracheal ballooning procedure for a distal tracheal stricture diagnosed by tracheoscopy. The tracheal ballooning had provided only temporary relief. At presentation to our institution, the cat had increased respiratory effort with harsh upper airway noise auscultated during thoracic examination. The remainder of the physical examination was normal. Diagnostics included a tracheoscopy and a thoracic computed tomographic examination. The cat was diagnosed with tracheal avulsion, pseudotrachea with a tracheal diverticulum, and stenosis of the avulsed tracheal ends. Surgical correction of the tracheal stricture via a thoracotomy was performed using OLV with total and partial intravenous anesthesia. The cat recovered uneventfully and at last follow-up was active and doing well. This case report describes OLV using standard anesthesia equipment that is available at most private practices. Furthermore, this case describes the computed tomographic images of the intrathoracic tracheal avulsion and offers a positive outcome for tracheal resection and anastomosis. © Veterinary Emergency and Critical Care Society 2015.

Sepsis-Associated Encephalopathy in a Child with the Torsion of Meckel s Diverticulum

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Esra Gurkas

2016-05-01

Full Text Available Sepsis-associated encephalopathy (SEA is a diffuse brain dysfunction secondary to the systemic response to infection and is associated with high mortality rate. We report a 4-year-old boy with SEA. He presented with abdominal pain and vomiting. On the second day of admission, he developed consciousness disturbance with impaired attention, confusion and delirium. Routine laboratory tests, brain magnetic resonance imaging and cerebrospinal fluid examination were normal. Electroencephalography (EEG showed high-voltage slow wave activity on the right hemisphere with epileptiform discharge. He immediately underwent surgery and a torsed, gangrenous Meckel%u2019s diverticulum with extension of ischemia to adjacent small bowel was seen and resected. His consciousness had become normal by the third day and he was discharged without any sequela. To overcome a poor prognosis in patients with SEA, the early recognition of the symptoms of SEA and also appropriate treatment of the underlying cause are essential.

MRI of acquired posterior urethral diverticulum following surgery for anorectal malformations

Energy Technology Data Exchange (ETDEWEB)

Podberesky, Daniel J.; Anton, Christopher G. [Cincinnati Children' s Hospital Medical Center, Department of Radiology, Cincinnati, OH (United States); Weaver, Nicholas C. [Cincinnati Children' s Hospital Medical Center, Department of Radiology, Cincinnati, OH (United States); Vanderbilt University, Nashville, TN (United States); Lawal, Taiwo [Cincinnati Children' s Hospital Medical Center, Department of Surgery, Cincinnati, OH (United States); University College Hospital, Department of Surgery, Ibadan (Nigeria); Hamrick, Miller C.; Pena, Alberto; Levitt, Marc A. [Cincinnati Children' s Hospital Medical Center, Department of Surgery, Cincinnati, OH (United States); Alam, Shumyle [Cincinnati Children' s Hospital Medical Center, Department of Urology, Cincinnati, OH (United States)

2011-09-15

Posterior urethral diverticulum (PUD) is one of the most common postoperative complications associated with anorectal malformation (ARM) correction. To describe our MRI protocol for evaluating acquired PUD following ARM surgery, and associated imaging findings. Two radiologists retrospectively reviewed 61 pelvic MRI examinations performed for postoperative ARM for PUD identification and characteristics. Associated clinical, operative and cystoscopy reports were also reviewed and compared to MRI. An abnormal retrourethral focus suspicious for PUD was identified at MRI in 13 patients. Ten of these patients underwent subsequent surgery or cystoscopy, and PUD was confirmed in five. All of the confirmed PUD cases appeared as cystic lesions that were at least 1 cm in diameter in two imaging planes. Four of the false-positive cases were punctate retrourethral foci that were visible only on a single MRI plane. One patient had a seminal vesical cyst mimicking a PUD. Pelvic MRI can be a useful tool in the postoperative assessment of suspected PUD associated with ARM. Radiologists should have a high clinical suspicion for a postoperative PUD when a cystic lesion posterior to the bladder/posterior urethra is encountered on two imaging planes in these patients. (orig.)

MRI of acquired posterior urethral diverticulum following surgery for anorectal malformations

International Nuclear Information System (INIS)

Podberesky, Daniel J.; Anton, Christopher G.; Weaver, Nicholas C.; Lawal, Taiwo; Hamrick, Miller C.; Pena, Alberto; Levitt, Marc A.; Alam, Shumyle

2011-01-01

Posterior urethral diverticulum (PUD) is one of the most common postoperative complications associated with anorectal malformation (ARM) correction. To describe our MRI protocol for evaluating acquired PUD following ARM surgery, and associated imaging findings. Two radiologists retrospectively reviewed 61 pelvic MRI examinations performed for postoperative ARM for PUD identification and characteristics. Associated clinical, operative and cystoscopy reports were also reviewed and compared to MRI. An abnormal retrourethral focus suspicious for PUD was identified at MRI in 13 patients. Ten of these patients underwent subsequent surgery or cystoscopy, and PUD was confirmed in five. All of the confirmed PUD cases appeared as cystic lesions that were at least 1 cm in diameter in two imaging planes. Four of the false-positive cases were punctate retrourethral foci that were visible only on a single MRI plane. One patient had a seminal vesical cyst mimicking a PUD. Pelvic MRI can be a useful tool in the postoperative assessment of suspected PUD associated with ARM. Radiologists should have a high clinical suspicion for a postoperative PUD when a cystic lesion posterior to the bladder/posterior urethra is encountered on two imaging planes in these patients. (orig.)

Colonic lymphoid follicles associated with colonic neoplasms

International Nuclear Information System (INIS)

Glick, S.N.; Teplick, S.K.; Ross, W.M.

1986-01-01

The authors prospectively evaluated 62 patients over 40 years old in whom lymphoid follicles were demonstrated on double-contrast enema examinations. Eighteen patients (29%) had no current radiographic evidence of, or history of, colonic neoplasms. Forty-four patients (71%) had an associated neoplasm. Fourteen patients had associated colonic carcinoma, and ten patients had a history of a previously resected colon cancer. One patient had previously undergone resection for ''polyps.'' Twenty-two patients had an associated ''polyp.'' There were no clinical or radiographic features that could reliably distinguish the neoplastic from the nonneoplastic groups. However, lymphoid follicles in the left colon or diffusely involving the colon were more likely to be associated with a colonic neoplasm. Lymphoid follicles were almost always identified near a malignant lesion

Severe acute abdomen caused by symptomatic Meckel's diverticulum in three children with trisomy 18.

Science.gov (United States)

Hayashi, Anri; Kumada, Tomohiro; Furukawa, Oki; Nozaki, Fumihito; Hiejima, Ikuko; Shibata, Minoru; Kusunoki, Takashi; Fujii, Tatsuya

2015-10-01

Meckel's diverticulum (MD) is the most prevalent congenital anomaly of the gastrointestinal tract and often presents a diagnostic challenge. Patients with trisomy 18 frequently have MD, but the poor prognosis and lack of consensus regarding management for neonates has meant that precise information on the clinical manifestations in infants and children with MD is lacking. We describe the cases of three children with trisomy 18 who developed symptomatic MD. Intussusception was diagnosed in Patient 1, intestinal volvulus in Patient 2, and gastrointestinal bleeding in Patient 3. All three patients underwent surgical treatment and only the Patient 1 died due to pulmonary hypertensive crisis. The other two patients experienced no further episodes of abdominal symptoms. In patients with trisomy 18, although consideration of postoperative complications and prognosis after surgical treatment is necessary, symptomatic MD should carry a high index of suspicion in patients presenting with acute abdomen. © 2015 Wiley Periodicals, Inc.

CT Findings of Colonic Complications Associated with Colon Cancer

International Nuclear Information System (INIS)

Kim, Sang Won; Shin, Hyeong Cheol; Kim, Il Young; Kim, Young Tong; Kim, Chang Jin

2010-01-01

A broad spectrum of colonic complications can occur in patients with colon cancer. Clinically, some of these complications can obscure the presence of underlying malignancies in the colon and these complications may require emergency surgical management. The complications of the colon that can be associated with colon cancer include obstruction, perforation, abscess formation, acute appendicitis, ischemic colitis and intussusception. Although the majority of these complications only rarely occur, familiarity with the various manifestations of colon cancer complications will facilitate making an accurate diagnosis and administering prompt management in these situations. The purpose of this pictorial essay is to review the CT appearance of the colonic complications associated with colon cancer

CT Findings of Colonic Complications Associated with Colon Cancer

Energy Technology Data Exchange (ETDEWEB)

Kim, Sang Won; Shin, Hyeong Cheol; Kim, Il Young; Kim, Young Tong; Kim, Chang Jin [Cheonan Hospital, Soonchunhyang University, Cheonan (Korea, Republic of)

2010-04-15

A broad spectrum of colonic complications can occur in patients with colon cancer. Clinically, some of these complications can obscure the presence of underlying malignancies in the colon and these complications may require emergency surgical management. The complications of the colon that can be associated with colon cancer include obstruction, perforation, abscess formation, acute appendicitis, ischemic colitis and intussusception. Although the majority of these complications only rarely occur, familiarity with the various manifestations of colon cancer complications will facilitate making an accurate diagnosis and administering prompt management in these situations. The purpose of this pictorial essay is to review the CT appearance of the colonic complications associated with colon cancer.

Forced diuresis 18F-fluorodeoxyglucose positron emission tomography/contrast enhanced in detection of carcinoma of urinary bladder diverticulum

International Nuclear Information System (INIS)

Soundararajan, Ramya; Singh, Harmandeep; Arora, Saurabh; Nayak, Brusabhanu; Shamim, Shamim Ahmed; Bal, Chandrasekhar; Kumar, Rakesh

2015-01-01

Urinary bladder diverticular carcinomas are uncommon with a lesser incidence of 0.8–10% and its diagnosis still remains a challenge. Cystoscopy is the most reliable method, but evaluating diverticulum with narrow orifices is difficult. Before the initiation of appropriate treatment, proper detection of bladder diverticular carcinoma and its locoregional and distant sites of involvement is necessary. Here, we present a case of 48-year-old male with urinary bladder diverticular carcinoma detected by forced diuretic 18 F-fluorodeoxyglucose positron emission tomography/computerized tomography ( 18 F-FDG PET/CT). This case also highlights the significance of forced diuretic 18 F-FDG PET/CT in the detection, staging, and response evaluation of bladder diverticular carcinoma

Giant pulses of pulsar radio emission

OpenAIRE

Kuzmin, A. D.

2007-01-01

Review report of giant pulses of pulsar radio emission, based on our detections of four new pulsars with giant pulses, and the comparative analysis of the previously known pulsars with giant pulses, including the Crab pulsar and millisecond pulsar PSR B1937+21.

Giant Oil Fields - The Highway to Oil: Giant Oil Fields and their Importance for Future Oil Production

International Nuclear Information System (INIS)

Robelius, Fredrik

2007-01-01

Since the 1950s, oil has been the dominant source of energy in the world. The cheap supply of oil has been the engine for economic growth in the western world. Since future oil demand is expected to increase, the question to what extent future production will be available is important. The belief in a soon peak production of oil is fueled by increasing oil prices. However, the reliability of the oil price as a single parameter can be questioned, as earlier times of high prices have occurred without having anything to do with a lack of oil. Instead, giant oil fields, the largest oil fields in the world, can be used as a parameter. A giant oil field contains at least 500 million barrels of recoverable oil. Only 507, or 1 % of the total number of fields, are giants. Their contribution is striking: over 60 % of the 2005 production and about 65 % of the global ultimate recoverable reserve (URR). However, giant fields are something of the past since a majority of the largest giant fields are over 50 years old and the discovery trend of less giant fields with smaller volumes is clear. A large number of the largest giant fields are found in the countries surrounding the Persian Gulf. The domination of giant fields in global oil production confirms a concept where they govern future production. A model, based on past annual production and URR, has been developed to forecast future production from giant fields. The results, in combination with forecasts on new field developments, heavy oil and oil sand, are used to predict future oil production. In all scenarios, peak oil occurs at about the same time as the giant fields peak. The worst-case scenario sees a peak in 2008 and the best-case scenario, following a 1.4 % demand growth, peaks in 2018

A Case of Sigmoid Colon Tuberculosis Mimicking Colon Cancer

OpenAIRE

Yu, Seong-Min; Park, Jong-Hwan; Kim, Min-Dae; Lee, Hee-Ryong; Jung, Peel; Ryu, Tae-Hyun; Choi, Seung-Ho; Lee, Il-Seon

2012-01-01

Tuberculosis of the sigmoid colon is a rare disorder. An 80-year-old man visited Bongseng Memorial Hospital for medical examination. A colonoscopy was performed, and a lesion in the sigmoid colon that was suspected to be colon cancer was found. A biopsy was performed, and tuberculous enteritis with chronic granulomatous inflammation was diagnosed. Intestinal tuberculosis is most frequent in the ileocecal area, followed by the ascending colon, transverse colon, duodenum, stomach, and sigmoid c...

Excitation of giant resonances in heavy ion collisions

International Nuclear Information System (INIS)

Kuehn, W.

1991-01-01

Introduction: What are Giant Resonances? General Features of Giant Resonances, Macroscopic Description and Classification, Basic Excitation Mechanisms, Decay Modes, Giant Resonances Built on Excited States, Relativistic Coulomb Excitation of Giant Resonances, Experimental Situation. (orig.)

Floret-like multinucleated giant cells in neurofibroma

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Golka Dariusz

2007-12-01

Full Text Available Abstract This short report discusses a case of neurofibroma containing floret-like multinucleated giant cells. This being the second such case in the literature. Floret-like multinucleated giant cells have been reported in gynaecomastia and neurofibroma in neurofibromatosis type 1. These cells have been reported in uncommon soft tissue tumours including pleomorphic lipoma, giant cell collagenoma, giant cell fibroblastoma and giant cell angiofibroma. We recommend these cells to be interpreted carefully keeping in mind the rare malignant change in neurofibromas. Immunohistochemistry would help in defining the nature of such cells.

Appendiceal diverticulum associated with chronic appendicitis

OpenAIRE

Zubieta-O’Farrill, Gregorio; Guerra-Mora, José Raúl; Gudiño-Chávez, Andrés; Gonzalez-Alvarado, Carlos; Cornejo-López, Gilberto Bernabe; Villanueva-Sáenz, Eduardo

2014-01-01

INTRODUCTION: Appendiceal diverticulosis is a rare entity, with a global incidence between 0.004% and 2.1% of all appendectomies. It has been related with an elevated risk of perforation in comparison to acute appendicitis, as well as an increased risk for synchronic appendicular cancer in 48% of the cases, and colonic cancer in 43%. The incidence of chronic appendicitis has been reported in 1.5% of all appendicitis cases. PRESENTATION OF CASE: We present a 73-year-old female, with no rele...

Nanodielectrics with giant permittivity

Indian Academy of Sciences (India)

Following the prediction, during the last couple of years we have investigated the effect of giant permittivity in one-dimensional systems of conventional metals and conjugated polymer chains. In this article, we have tried to summarize the works on giant permittivity and finally the fabrication of nanocapacitor using metal ...

From red giants to planetary nebulae

International Nuclear Information System (INIS)

Kwok, S.

1982-01-01

The transition from red giants to planetary nebulae is studied by comparing the spectral characteristics of red giant envelopes and planetary nebulae. Observational and theoretical evidence both suggest that remnants of red giant envelopes may still be present in planetary nebula systems and should have significant effects on their formation. The dynamical effects of the interaction of stellar winds from central stars of planetary nebulae with the remnant red giant envelopes are evaluated and the mechanism found to be capable of producing the observed masses and momenta of planetary nebulae. The observed mass-radii relation of planetary nebulae may also be best explained by the interacting winds model. The possibility that red giant mass loss, and therefore the production of planetary nebulae, is different between Population I and II systems is also discussed

A modified Rendezvous ERCP technique in duodenal diverticulum.

Science.gov (United States)

Odabasi, Mehmet; Yildiz, Mehmet Kamil; Abuoglu, Haci Hasan; Eris, Cengiz; Ozkan, Erkan; Gunay, Emre; Aktekin, Ali; Muftuoglu, Ma Tolga

2013-11-16

To postoperative endoscopic retrograde cholangiopancreatography (ERCP) failure, we describe a modified Rendezvous technique for an ERCP in patients operated on for common bile duct stone (CBDS) having a T-tube with retained CBDSs. Five cases operated on for CBDSs and having retained stones with a T-tube were referred from other hospitals located in or around Istanbul city to the ERCP unit at the Haydarpasa Numune Education and Research Hospital. Under sedation anesthesia, a sterile guide-wire was inserted via the T-tube into the common bile duct (CBD) then to the papilla. A guide-wire was held by a loop snare and removed through the mouth. The guide-wire was inserted into the sphincterotome via the duodenoscope from the tip to the handle. The duodenoscope was inserted down to the duodenum with a sphincterotome and a guide-wire in the working channel. With the guidance of a guide-wire, the ERCP and sphincterotomy were successfully performed, the guide-wire was removed from the T-tube, the stones were removed and the CBD was reexamined for retained stones by contrast. An ERCP can be used either preoperatively or postoperatively. Although the success rate in an isolated ERCP treatment ranges from up to 87%-97%, 5%-10% of the patients require two or more ERCP treatments. If a secondary ERCP fails, the clinicians must be ready for a laparoscopic or open exploration. A duodenal diverticulum is one of the most common failures in an ERCP, especially in patients with an intradiverticular papilla. For this small group of patients, an antegrade cannulation via a T-tube can improve the success rate up to nearly 100%. The modified Rendezvous technique is a very easy method and increases the success of postoperative ERCP, especially in patients with large duodenal diverticula and with intradiverticular papilla.

Meckel's diverticulum in children: Our 12-year experience

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Kamal Nain Rattan

2016-01-01

Full Text Available Background: Meckel's diverticulum (MD is the one of the most common congenital malformation of gastrointestinal tract and has varied clinical presentations. We are presenting here our 12-year experiences with MD in children at tertiary care hospital in North India. It highlights the fact that isolated gangrene of MD can occur, and it is associated with increased morbidity. Materials and Methods: This retrospective study is conducted by analysing the medical records of the patients who were operated for MD in the last 12 years in paediatric surgery department at our hospital. Results: Sixty-five patients were operated for MD in study period; in this 52 were males and 13 were females with mean age of presentation 3.2 years. The most common presentation was intestinal obstruction seen in 86.1% (56 cases. Intestinal haemorrhage was seen in 4.6% (3 cases and diverticulitis in 3% (2 cases. Perforation of the gut with peritonitis was present in 6.1% (four cases. Cause of obstruction was intussusception in 21.4% (12 cases, fibrous band connected to umbilicus in 17.8% (10 cases, volvulus in 17.8% (10 cases, kinking in 16.0% (9 cases, knotting in 14.2% (8 cases and herniation of gut below in 12.5% (7 cases. Isolated gangrene of MD was present in ten cases with intestinal obstruction. The ectopic gastric mucosa was seen in three and pancreatic mucosa in two cases. Mortality and morbidity during the study were one and three cases, respectively. Conclusion: MD may remain clinically silent for lifetime, or it may have life-threatening complications. In our series, intestinal obstruction and not the haemorrhage was the most common presentation. Isolated gangrene of MD with obstruction was present in significant numbers, which we failed to find in literature.

Tratamento cirúrgico do divertículo de Zenker: diverticulopexia versus diverticulectomia Surgical treatment of Zenker diverticulum: diverticulopexy versus diverticulectomy

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Nelson Adami Aandreollo

2007-12-01

.BACKGROUND: Pharyngoesophageal diverticulum, known as Zenker, is an acquired herniation in the pharyngeal mucous through a muscular defect between the oblique fibers of the constrictor muscle of the pharynx and the transverse fibers of the cricopharyngeal muscle. AIM: A non-randomized retrospective study was performed, comparing the results of the diverticulopexy and diverticulectomy, both associated to the cricopharyngeal myotomy, in the Zenker diverticulum treatment. METHODS: Forty patients were submitted to surgical treatment between 1989 and 2003, of which 38 (95% were followed. Twenty-eight patients were males (70%, with an average age of 62,5 years (21 to 85 years. Twenty-four patients (60% were submitted to diverticulopexy or elevation, and sixteen to the diverticulectomy or resection, through left cervicotomy, followed by cricopharyngeal myotomy. RESULTS: Excellent results (Visick I were found in 84,6% of the patients submitted to the diverticulectomy and 66,6% of the patients submitted to the diverticulopexy. General analysis showed that 27 cases (11 resections and 16 elevations - 72,9% presented Visick I; 8 cases (2 resections and 6 elevations - 21,6% presented Visick II; and 2 cases (elevations - 5,4% presented Visick III. No cases were registered under Visick IV classification. The incidence of postoperative complications recorded in the two groups was similar (P > 0,05. The presence of malignant neoplasia was verified in a case submitted to resection (2,5%. CONCLUSION: The cricopharyngeal myotomy and diverticulopexy is suitable in geriatric patients, small diverticulum, and patients with operatory risk. Diverticulectomy is a good option in cases of larger diverticulum and young patients to prevent the risk of malignant transformation. This casuistic presented better results with diverticulectomy than diverticulopexy.

Giant multipole resonances: an experimental review

International Nuclear Information System (INIS)

Bertrand, F.E.

1979-01-01

During the past several years experimental evidence has been published for the existance of nondipole giant resonances. These giant multipole resonances, the so-called new giant resonances were first observed through inelastic hadron and electron scattering and such measurements have continued to provide most of the information in this field. A summary is provided of the experimental evidence for these new resonances. The discussion deals only with results from inelastic scattering and only with the electric multipoles. Emphasis is placed on the recent observations of the giant monopole resonance. Results from recent heavy-ion and pion inelastic scattering are discussed. 38 references

Giant dipole resonance in hot nuclei

International Nuclear Information System (INIS)

Mau, N.V.

1993-01-01

Giant resonances built on an excited state of the nucleus at a finite temperature T are studied. The following questions are investigated: how long such collective effects occur in a nucleus when T increases. How the properties of the giant resonances vary when the temperature increases. How the study of giant resonances in hot nuclei can give information on the structure of the nucleus in a highly excited state. The special case of the giant dipole resonance is studied. Some of the experimental results are reviewed and in their theoretical interpretation is discussed. (K.A.). 56 refs., 20 figs., 4 tabs

Electrified BPS giants: BPS configurations on giant gravitons with static electric field

International Nuclear Information System (INIS)

Ali-Akbari, Mohammad; Sheikh-Jabbari, Mohammad Mahdi

2007-01-01

We consider D3-brane action in the maximally supersymmetric type IIB plane-wave background. Upon fixing the light-cone gauge, we obtain the light-cone Hamiltonian which is manifestly supersymmetric. The 1/2 BPS solutions of this theory (solutions which preserve 16 supercharges) are either of the form of spherical three branes, the giant gravitons, or zero size point like branes. We then construct specific classes of 1/4 BPS solutions of this theory in which static electric field on the brane is turned on. These solutions are deformations about either of the two 1/2 BPS solutions. In particular, we study in some detail 1/4 BPS configurations with electric dipole on the three sphere giant, i.e. BIons on the giant gravitons, which we hence call BIGGons. We also study BPS configurations corresponding to turning on a background uniform constant electric field. As a result of this background electric field the three sphere giant is deformed to squashed sphere, while the zero size point like branes turn into circular or straight fundamental strings in the plane-wave background, with their tension equal to the background electric field

Giant cells around bone biomaterials: Osteoclasts or multi-nucleated giant cells?

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Miron, Richard J; Zohdi, Hamoon; Fujioka-Kobayashi, Masako; Bosshardt, Dieter D

2016-12-01

Recently accumulating evidence has put into question the role of large multinucleated giant cells (MNGCs) around bone biomaterials. While cells derived from the monocyte/macrophage lineage are one of the first cell types in contact with implanted biomaterials, it was originally thought that specifically in bone tissues, all giant cells were bone-resorbing osteoclasts whereas foreign body giant cells (FBGCs) were found associated with a connective tissue foreign body reaction resulting in fibrous encapsulation and/or material rejection. Despite the great majority of bone grafting materials routinely found with large osteoclasts, a special subclass of bone biomaterials has more recently been found surrounded by large giant cells virtually incapable of resorbing bone grafts even years after their implantation. While original hypotheses believed that a 'foreign body reaction' may be taking place, histological data retrieved from human samples years after their implantation have put these original hypotheses into question by demonstrating better and more stable long-term bone volume around certain bone grafts. Exactly how or why this 'special' subclass of giant cells is capable of maintaining long-term bone volume, or methods to scientifically distinguish them from osteoclasts remains extremely poorly studied. The aim of this review article was to gather the current available literature on giant cell markers and differences in expression patterns between osteoclasts and MNGCs utilizing 19 specific markers including an array of CD-cell surface markers. Furthermore, the concept of now distinguishing between pro-inflammatory M1-MNGCs (previously referred to as FBGCs) as well as wound-healing M2-MNGCs is introduced and discussed. This review article presents 19 specific cell-surface markers to distinguish between osteoclasts and MNGCs including an array of CD-cell surface markers. Furthermore, the concept of now distinguishing between pro-inflammatory M1-MNGCs (often

Giant Planets: Good Neighbors for Habitable Worlds?

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Georgakarakos, Nikolaos; Eggl, Siegfried; Dobbs-Dixon, Ian

2018-04-01

The presence of giant planets influences potentially habitable worlds in numerous ways. Massive celestial neighbors can facilitate the formation of planetary cores and modify the influx of asteroids and comets toward Earth analogs later on. Furthermore, giant planets can indirectly change the climate of terrestrial worlds by gravitationally altering their orbits. Investigating 147 well-characterized exoplanetary systems known to date that host a main-sequence star and a giant planet, we show that the presence of “giant neighbors” can reduce a terrestrial planet’s chances to remain habitable, even if both planets have stable orbits. In a small fraction of systems, however, giant planets slightly increase the extent of habitable zones provided that the terrestrial world has a high climate inertia. In providing constraints on where giant planets cease to affect the habitable zone size in a detrimental fashion, we identify prime targets in the search for habitable worlds.

Should the Endangered Status of the Giant Panda Really Be Reduced? The Case of Giant Panda Conservation in Sichuan, China.

Science.gov (United States)

Ma, Ben; Lei, Shuo; Qing, Qin; Wen, Yali

2018-05-03

The International Union for Conservation of Nature (IUCN) reduced the threat status of the giant panda from “endangered” to “vulnerable” in September 2016. In this study, we analyzed current practices for giant panda conservation at regional and local environmental scales, based on recent reports of giant panda protection efforts in Sichuan Province, China, combined with the survey results from 927 households within and adjacent to the giant panda reserves in this area. The results showed that household attitudes were very positive regarding giant panda protection efforts. Over the last 10 years, farmers’ dependence on the natural resources provided by giant panda reserves significantly decreased. However, socio-economic development increased resource consumption, and led to climate change, habitat fragmentation, environmental pollution, and other issues that placed increased pressure on giant panda populations. This difference between local and regional scales must be considered when evaluating the IUCN status of giant pandas. While the status of this species has improved in the short-term due to positive local attitudes, large-scale socio-economic development pressure could have long-term negative impacts. Consequently, the IUCN assessment leading to the classification of giant panda as “vulnerable” instead of “endangered”, should not affect its conservation intensity and effort, as such actions could negatively impact population recovery efforts, leading to the extinction of this charismatic species.

Should the Endangered Status of the Giant Panda Really Be Reduced? The Case of Giant Panda Conservation in Sichuan, China

Directory of Open Access Journals (Sweden)

Ben Ma

2018-05-01

Full Text Available The International Union for Conservation of Nature (IUCN reduced the threat status of the giant panda from “endangered” to “vulnerable” in September 2016. In this study, we analyzed current practices for giant panda conservation at regional and local environmental scales, based on recent reports of giant panda protection efforts in Sichuan Province, China, combined with the survey results from 927 households within and adjacent to the giant panda reserves in this area. The results showed that household attitudes were very positive regarding giant panda protection efforts. Over the last 10 years, farmers’ dependence on the natural resources provided by giant panda reserves significantly decreased. However, socio-economic development increased resource consumption, and led to climate change, habitat fragmentation, environmental pollution, and other issues that placed increased pressure on giant panda populations. This difference between local and regional scales must be considered when evaluating the IUCN status of giant pandas. While the status of this species has improved in the short-term due to positive local attitudes, large-scale socio-economic development pressure could have long-term negative impacts. Consequently, the IUCN assessment leading to the classification of giant panda as “vulnerable” instead of “endangered”, should not affect its conservation intensity and effort, as such actions could negatively impact population recovery efforts, leading to the extinction of this charismatic species.

A search for lithium-rich giant stars

International Nuclear Information System (INIS)

Brown, J.A.; Sneden, C.; Lambert, D.L.; Dutchover, E. Jr.

1989-01-01

Lithium abundances or upper limits have been determined for 644 bright G-K giant stars selected from the DDO photometric catalog. Two of these giants possess surface lithium abundances approaching the cosmic value of the interstellar medium and young main-sequence stars, and eight more giants have Li contents far in excess of standard predictions. At least some of these Li-rich giants are shown to be evolved to the stage of having convectively mixed envelopes, either from the direct evidence of low surface carbon isotope ratios, or from the indirect evidence of their H-R diagram positions. Suggestions are given for the unique conditions that might have allowed these stars to produce or accrete new lithium for their surface layers, or simply to preserve from destruction their initial lithium contents. The lithium abundance of the remaining stars demonstrates that giants only very rarely meet the expectations of standard first dredge-up theories; the average extra Li destruction required is about 1.5 dex. The evolutionary states of these giants and their average masses are discussed briefly, and the Li distribution of the giants is compared to predictions of Galactic chemical evolution. 110 refs

Balloon-assisted enteroscopy for suspected Meckel’s diverticulum and indefinite diagnostic imaging workup

Science.gov (United States)

Gomes, Guilherme Francisco; Bonin, Eduardo Aimore; Noda, Rafael William; Cavazzola, Leandro Totti; Bartholomei, Thiago Ferreira

2016-01-01

Meckel’s diverticulum (MD) is estimated to affect 1%-2% of the general population, and it represents a clinically silent finding of a congenital anomaly in up to 85% of the cases. In adults, MD may cause symptoms, such as overt occult lower gastrointestinal bleeding. The diagnostic imaging workup includes computed tomography scan, magnetic resonance imaging enterography, technetium 99m scintigraphy (99mTc) using either labeled red blood cells or pertechnetate (known as the Meckel’s scan) and angiography. The preoperative detection rate of MD in adults is low, and many patients ultimately undergo exploratory laparoscopy. More recently, however, endoscopic identification of MD has been possible with the use of balloon-assisted enteroscopy via direct luminal access, which also provides visualization of the diverticular ostium. The aim of this study was to review the diagnosis by double-balloon enteroscopy of 4 adults with symptomatic MD but who had negative diagnostic imaging workups. These cases indicate that balloon-assisted enteroscopy is a valuable diagnostic method and should be considered in adult patients who have suspected MD and indefinite findings on diagnostic imaging workup, including negative Meckel’s scan. PMID:27803776

Macroscopic description of isoscalar giant multipole resonances

International Nuclear Information System (INIS)

Nix, J.R.; Sierk, A.J.

1980-01-01

On the basis of a simple macroscopic model, we calculate the isoscalar giant-resonance energy as a function of mass number and multipole degree. The restoring force is determined from the distortion of the Fermi surface, and the inertia is determined for the incompressible, irrotational flow of nucleons with unit effective mass. With no adjustable parameters, the resulting closed expression reproduces correctly the available experimental data, namely the magnitude and dependence upon mass number of the giant quadrupole energy and the magnitude of the giant octupole energy for 208 Pb. We also calculate the isoscalar giant-resonance width as a function of mass number and multipole degree for various macroscopic damping mechanisms, including two-body viscosity, one-body dissipation, and modified one-body dissipation. None of these damping mechanisms reproduces correctly all features of the available experimental data, namely the magnitude and dependence upon mass number of the giant quadrupole width and the magnitude of the giant octupole width for 208 Pb

Tests of the Giant Impact Hypothesis

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Jones, J. H.

1998-01-01

The giant impact hypothesis has gained popularity as a means of explaining a volatile-depleted Moon that still has a chemical affinity to the Earth. As Taylor's Axiom decrees, the best models of lunar origin are testable, but this is difficult with the giant impact model. The energy associated with the impact would be sufficient to totally melt and partially vaporize the Earth. And this means that there should he no geological vestige of Barber times. Accordingly, it is important to devise tests that may be used to evaluate the giant impact hypothesis. Three such tests are discussed here. None of these is supportive of the giant impact model, but neither do they disprove it.

Hadron excitation of giant resonances

International Nuclear Information System (INIS)

Morsch, H.-P.

1985-01-01

A review is given on giant resonance studies in heavy nuclei using scattering of different hadronic probes. Concerning isoscalar giant resonances compression modes are discussed with the possibility to obtain more detailed structure information. From detailed studies of α scattering the distribution of isoscalar strengths of multipolarity up to L=6 was obtained. Some recent aspects of heavy ion excitation of collective modes are mentioned. The possibility to study isovector giant resonances in hadron charge exchange reactions is discussed. Finally, a comparison is made between α and 200 MeV proton scattering from which isoscalar and spin-isospin continuum response are extracted. (orig.)

YOUNG SOLAR SYSTEM's FIFTH GIANT PLANET?

International Nuclear Information System (INIS)

Nesvorný, David

2011-01-01

Studies of solar system formation suggest that the solar system's giant planets formed and migrated in the protoplanetary disk to reach the resonant orbits with all planets inside ∼15 AU from the Sun. After the gas disk's dispersal, Uranus and Neptune were likely scattered by the gas giants, and approached their current orbits while dispersing the transplanetary disk of planetesimals, whose remains survived to this time in the region known as the Kuiper Belt. Here we performed N-body integrations of the scattering phase between giant planets in an attempt to determine which initial states are plausible. We found that the dynamical simulations starting with a resonant system of four giant planets have a low success rate in matching the present orbits of giant planets and various other constraints (e.g., survival of the terrestrial planets). The dynamical evolution is typically too violent, if Jupiter and Saturn start in the 3:2 resonance, and leads to final systems with fewer than four planets. Several initial states stand out in that they show a relatively large likelihood of success in matching the constraints. Some of the statistically best results were obtained when assuming that the solar system initially had five giant planets and one ice giant, with the mass comparable to that of Uranus and Neptune, and which was ejected to interstellar space by Jupiter. This possibility appears to be conceivable in view of the recent discovery of a large number of free-floating planets in interstellar space, which indicates that planet ejection should be common.

Young Solar System's Fifth Giant Planet?

Science.gov (United States)

Nesvorný, David

2011-12-01

Studies of solar system formation suggest that the solar system's giant planets formed and migrated in the protoplanetary disk to reach the resonant orbits with all planets inside ~15 AU from the Sun. After the gas disk's dispersal, Uranus and Neptune were likely scattered by the gas giants, and approached their current orbits while dispersing the transplanetary disk of planetesimals, whose remains survived to this time in the region known as the Kuiper Belt. Here we performed N-body integrations of the scattering phase between giant planets in an attempt to determine which initial states are plausible. We found that the dynamical simulations starting with a resonant system of four giant planets have a low success rate in matching the present orbits of giant planets and various other constraints (e.g., survival of the terrestrial planets). The dynamical evolution is typically too violent, if Jupiter and Saturn start in the 3:2 resonance, and leads to final systems with fewer than four planets. Several initial states stand out in that they show a relatively large likelihood of success in matching the constraints. Some of the statistically best results were obtained when assuming that the solar system initially had five giant planets and one ice giant, with the mass comparable to that of Uranus and Neptune, and which was ejected to interstellar space by Jupiter. This possibility appears to be conceivable in view of the recent discovery of a large number of free-floating planets in interstellar space, which indicates that planet ejection should be common.

Giant multipole resonances: perspectives after ten years

International Nuclear Information System (INIS)

Bertrand, F.E.

1980-01-01

Nearly ten years ago evidence was published for the first of the so-called giant multipole resonances, the giant quadrupole resonance. During the ensuing years research in this field has spread to many nuclear physics laboratories throughout the world. The present status of electric giant multipole resonances is reviewed. 24 figures, 1 table

Solitary ulcerated congenital giant juvenile xanthogranuloma

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Su Yuen Ng

2015-01-01

Full Text Available A 3-month-old female patient with a giant ulcerated nodule over the back since birth was diagnosed as congenital giant juvenile xanthogranuloma (JXG based on clinical and histopathological examination. Congenital giant JXG with ulceration at birth is a rare presentation of JXG and commonly misdiagnosed. This case emphasizes the importance of being aware of the myriad presentations of JXG in order to make a correct diagnosis and avoid unnecessary investigations or treatment.

Giant resonances in heavy-ion reactions

International Nuclear Information System (INIS)

Hussein, M.S.

1982-11-01

The several roles of multipole giant resonances in heavy-ion reactions are discussed. In particular, the modifications in the effective ion-ion potencial due to the virtual excitation of giant resonances at low energies, are considered and estimated for several systems. Real excitation of giant resonances in heavy-ion reactions at intermediate energies are then discussed and their importance in the approach phase of deeply inelastic processes in emphasized. Several demonstrative examples are given. (Author) [pt

Acquired urethral diverticulum in a man with paraplegia presenting with a scrotal mass: a case report

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El Ammari Jalal Eddine

2012-11-01

Full Text Available Abstract Introduction Male urethral diverticula are rare. Patients with paraplegia may present with acquired diverticula as a result of prolonged catheterization. Diverticula may be asymptomatic or lead to lower urinary tract symptoms. Rarely, the diverticulum may initially present as a scrotal mass. Case presentation We report the case of a male 45-year-old Arab with paraplegia who presented with a mass in the peno-scrotal junction. He had in his medical history iterative prolonged urethral catheterizations associated with urine leakage through the urethral meatus upon applying compression. Diagnosis confirmation of urethral diverticula is obtained by retrograde urethrography. The patient underwent a diverticulectomy with urethroplasty. Conclusion Male acquired urethral diverticula can be found in patients who have a spinal cord injury because of prolonged urethral catheterization. Clinical presentations are different and sometimes can be misleading. Retrograde urethrography is the key to diagnosis and open surgery is the treatment of reference.

Swiss roll operation for giant fibroadenoma.

Science.gov (United States)

Soomro, Saleem A; Memon, Sohail A; Mohammad, Noor; Maher, Mumtaz

2009-01-01

Fibroadenoma 5 cm or more is called giant fibroadenoma. Giant fibroadenoma can distort the shape of breast and causes asymmetry, so it should be excised. There are several techniques for excision of giant fibroadenoma. In our technique we remove them through cosmetically acceptable circumareolar incision to maintain the shape and symmetry of breast. The objectives were to assess the cosmetic results of Swiss roll operation for giant fibroadenoma. The study was conducted for six years from January, 2002 to December, 2007. Seventy patients of giant fibroadenoma were included in this study. They were diagnosed on history and clinical examination supported by ultrasound and postoperative histopathological examination. Data were collected from outpatient department and operation theatre. Swiss roll operation was performed under general anaesthesia. Mean tumor size was 6.38 cm. Three cm and 4 cm incisions were used for tumour 6 cm in size respectively. Skin closed with Vicryl 3/0 subcuticular stitches. Sixteen out of 70 patients had no scar while others hadminimal scar. All patients had normal shape and symmetry of breast. On histopathology fibroadenoma was confirmed. Giant fibroadenoma should be removed through cosmetically acceptable cicumareolar incision especially in unmarried young females who have small breast. Swiss-roll operation is superior in maintaining the shape and symmetry of breast. No major complication was found in our series except seroma formation in 10 patients.

Giant serpentine intracranial aneurysm: a case report

International Nuclear Information System (INIS)

Park, Jae Seong; Lee, Myeong Sub; Kim, Myung Soon; Kim, Dong Jin; Park, Joong Wha; Whang, Kum

2001-01-01

The authors present a case of giant serpentine aneurysm (a partially thrombosed aneurysm containing tortuous vascular channels with a separate entrance and outflow pathway). Giant serpentine aneurysms form a subgroup of giant intracranial aneurysms, distinct from saccular and fusiform varieties, and in this case, too, the clinical presentation and radiographic features of CT, MR imaging and angiography were distinct

Stellar oscillations in planet-hosting giant stars

Energy Technology Data Exchange (ETDEWEB)

Hatzes, Artie P; Zechmeister, Mathias [Thueringer Landessternwarte, Sternwarte 5, D-07778 (Germany)], E-mail: artie@tls-tautenburg.de

2008-10-15

Recently a number of giant extrasolar planets have been discovered around giant stars. These discoveries are important because many of these giant stars have intermediate masses in the range 1.2-3 Msun. Early-type main sequence stars of this mass range have been avoided by radial velocity planet search surveys due the difficulty of getting the requisite radial velocity precision needed for planet discoveries. Thus, giant stars can tell us about planet formation for stars more massive than the sun. However, the determination of stellar masses for giant stars is difficult due to the fact that evolutionary tracks for stars covering a wide range of masses converge to the same region of the H-R diagram. We report here on stellar oscillations in three planet-hosting giant stars: HD 13189, {beta} Gem, and {iota} Dra. Precise stellar radial velocity measurements for these stars show variations whose periods and amplitudes are consistent with solar-like p-mode oscillations. The implied stellar masses for these objects based on the characteristics of the stellar oscillations are consistent with the predictions of stellar isochrones. An investigation of stellar oscillations in planet hosting giant stars offers us the possibility of getting an independent determination of the stellar mass for these objects which is of crucial importance for extrasolar planet studies.

Giant nuclear resonances

International Nuclear Information System (INIS)

Snover, K.A.

1989-01-01

Giant nuclear resonances are elementary mods of oscillation of the whole nucleus, closely related to the normal modes of oscillation of coupled mechanical systems. They occur systematically in most if not all nuclei, with oscillation energies typically in the range 10-30 MeV. One of the best - known examples is the giant electric dipole (El) resonance, in which all the protons and all the neutrons oscillate with opposite phase, producing a large time - varying electric dipole moment which acts as an effective antenna for radiating gamma ray. This paper discusses this mode as well as quadrupole and monopole modes

Measuring Precise Radii of Giants Orbiting Giants to Distinguish Between Planet Evolution Models

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Grunblatt, Samuel; Huber, Daniel; Lopez, Eric; Gaidos, Eric; Livingston, John

2017-10-01

Despite more than twenty years since the initial discovery of highly irradiated gas giant planets, the mechanism for planet inflation remains unknown. However, proposed planet inflation mechanisms can now be separated into two general classes: those which allow for post-main sequence planet inflation by direct irradiation from the host star, and those which only allow for slowed cooling of the planet over its lifetime. The recent discovery of two inflated warm Jupiters orbiting red giant stars with the NASA K2 Mission allows distinction between these two classes, but uncertainty in the planet radius blurs this distinction. Observing transits of these planets with the Spitzer Space Telescope would reduce stellar variability and thus planet radius uncertainties by approximately 50% relative to K2, allowing distinction between the two planet inflation model classes at a 3-sigma level. We propose to observe one transit of both known warm Jupiters orbiting red giant stars, K2-97b and EPIC228754001.01, to distinguish between planet model inflation classes and measure the planetary heating efficiency to 3-sigma precision. These systems are benchmarks for the upcoming NASA TESS Mission, which is predicted to discover an order of magnitude more red giant planet systems after launching next year.

Outcomes of colon resection in patients with metastatic colon cancer.

Science.gov (United States)

Moghadamyeghaneh, Zhobin; Hanna, Mark H; Hwang, Grace; Mills, Steven; Pigazzi, Alessio; Stamos, Michael J; Carmichael, Joseph C

2016-08-01

Patients with advanced colorectal cancer have a high incidence of postoperative complications. We sought to identify outcomes of patients who underwent resection for colon cancer by cancer stage. The National Surgical Quality Improvement Program database was used to evaluate all patients who underwent colon resection with a diagnosis of colon cancer from 2012 to 2014. Multivariate logistic regression analysis was performed to investigate patient outcomes by cancer stage. A total of 7,786 colon cancer patients who underwent colon resection were identified. Of these, 10.8% had metastasis at the time of operation. Patients with metastatic disease had significantly increased risks of perioperative morbidity (adjusted odds ratio [AOR]: 1.44, P = .01) and mortality (AOR: 3.72, P = .01). Patients with metastatic disease were significantly younger (AOR: .99, P colon cancer have metastatic disease. Postoperative morbidity and mortality are significantly higher than in patients with localized disease. Published by Elsevier Inc.

Antegrade Colonic Lavage in Acute Colonic Obstruction

OpenAIRE

Foster, Michael E.; Johnson, Colin D.

1986-01-01

Conventional management of acute left sided colonic obstruction employs some form of proximal colostomy. Intraoperative antegrade colonic irrigation relieves proximal faecal loading and may permit safer primary resection and anastomosis. The results of a pilot study are presented, and are shown to be favourable.

Determination of giant resonance strengths

International Nuclear Information System (INIS)

Serr, F.E.

1983-01-01

Using theoretical strength functions to describe the different giant resonances expected at excitation energies of the order of (60-85)/Asup(1/3) MeV, we calculate the double differential cross sections d 2 sigma/dΩ dE associated with the reactions 208 Pb(α, α') and 90 Zr(α, α') (Esub(α) = 152 MeV). The angular distributions for the giant quadrupole and giant monopole resonances obtained from fits to these spectra, making simple, commonly used assumptions for the peak shapes and background, are compared to the original angular distributions. The differences between them are an indication of some of the uncertainties affecting the giant resonance strengths extracted from hadron inelastic scattering data. Fits to limited angular regions lead to errors of up to 50% in the value of the energy-weighted sum rule, depending on the angles examined. While it seems possible to extract the correct EWSR for the GMR by carrying out the analyses at 0 0 , no single privileged angle seems to exist in the case of the GQR. (orig.)

CMB lensing and giant rings

Energy Technology Data Exchange (ETDEWEB)

Rathaus, Ben; Itzhaki, Nissan, E-mail: nitzhaki@post.tau.ac.il, E-mail: ben.rathaus@gmail.com [Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics and Astronomy, Tel-Aviv University, Ramat-Aviv, 69978 (Israel)

2012-05-01

We study the CMB lensing signature of a pre-inationary particle (PIP), assuming it is responsible for the giant rings anomaly that was found recently in the WMAP data. Simulating Planck-like data we find that generically the CMB lensing signal to noise ratio associated with such a PIP is quite small and it would be difficult to cross correlate the temperature giant rings with the CMB lensing signal. However, if the pre-inationary particle is also responsible for the bulk flow measured from the local large scale structure, which happens to point roughly at the same direction as the giant rings, then the CMB lensing signal to noise ratio is fairly significant.

Role of nature reserves in giant panda protection.

Science.gov (United States)

Kang, Dongwei; Li, Junqing

2018-02-01

Giant panda (Ailuropoda melanoleuca) is a flagship species in nature conservation of the world; to protect this species, 67 nature reserves have been established in China. To evaluate the protection effect of giant panda nature reserves, we analyzed the variation of giant panda number and habitat area of 23 giant panda nature reserves of Sichuan province based on the national survey data released by State Forestry Administration and Sichuan Forestry Department. Results showed that from the third national survey to the fourth, giant panda number and habitat area of 23 giant panda nature reserves of Sichuan province failed to realize the significant increase. Furthermore, we found that the total population growth rate of 23 nature reserves in the last 12 years was lower than those of the province total of Sichuan and the national total of China, and the total habitat area of the 23 nature reserves was decreasing in the last 12 years, but the province total and national total were all increasing. We propose that giant panda protection should pay more attention to how to improve the protective effects of nature reserves.

Modeling Impacts of Climate Change on Giant Panda Habitat

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Melissa Songer

2012-01-01

Full Text Available Giant pandas (Ailuropoda melanoleuca are one of the most widely recognized endangered species globally. Habitat loss and fragmentation are the main threats, and climate change could significantly impact giant panda survival. We integrated giant panda habitat information with general climate models (GCMs to predict future geographic distribution and fragmentation of giant panda habitat. Results support a major general prediction of climate change—a shift of habitats towards higher elevation and higher latitudes. Our models predict climate change could reduce giant panda habitat by nearly 60% over 70 years. New areas may become suitable outside the current geographic range but much of these areas is far from the current giant panda range and only 15% fall within the current protected area system. Long-term survival of giant pandas will require the creation of new protected areas that are likely to support suitable habitat even if the climate changes.

Giant lobelias exemplify convergent evolution

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Givnish Thomas J

2010-01-01

Full Text Available Abstract Giant lobeliads on tropical mountains in East Africa and Hawaii have highly unusual, giant-rosette growth forms that appear to be convergent on each other and on those of several independently evolved groups of Asteraceae and other families. A recent phylogenetic analysis by Antonelli, based on sequencing the widest selection of lobeliads to date, raises doubts about this paradigmatic example of convergent evolution. Here I address the kinds of evidence needed to test for convergent evolution and argue that the analysis by Antonelli fails on four points. Antonelli's analysis makes several important contributions to our understanding of lobeliad evolution and geographic spread, but his claim regarding convergence appears to be invalid. Giant lobeliads in Hawaii and Africa represent paradigmatic examples of convergent evolution.

Surgical treatment for giant incisional hernia

DEFF Research Database (Denmark)

Eriksson, A; Rosenberg, J; Bisgaard, T

2014-01-01

INTRODUCTION: Repair for giant incisional hernias is a challenge due to unacceptable high morbidity and recurrence rates. Several surgical techniques are available, but all are poorly documented. This systematic review was undertaken to evaluate the existing literature on repair for giant...... % with a wide range between studies of 4-100 %. The mortality ranged from 0 to 5 % (median 0 %) and recurrence rate ranged from 0 to 53 % (median 5 %). Study follow-up ranged from 15 to 97 months (median 36 months). Mesh repair should always be used for patients undergoing repair for a giant hernia......, and the sublay position may have advantages over onlay positioning. To avoid tension, it may be advisable to use a mesh in combination with a component separation technique. Inlay positioning of the mesh and repair without a mesh should be avoided. CONCLUSIONS: Evidence to optimise repair for giant hernias...

A study of the colonic transit function by dual radionuclide colon scintigraphy

International Nuclear Information System (INIS)

Yang Weidong; Sun Buzhou; Song Changyi; Lu Jinyan; Wang Shejiao; Zheng Xianghong; Huang Lin; Lei Yamei

1999-01-01

Objective: To establish a new, simple and noninvasive method which can quantitatively analyze the colonic transit function by dual radionuclide colon scintigraphy. Methods: 24 patients with constipation and 32 normal controls were studied. Na 131 I was sealed into capsule made by polyvinylchloride which can not be digested and absorbed in gastrointestinal tract. Patients and normal volunteers swallow 131 I capsules and drink 99 Tc m labelled sulfur colloid solution at the same time. The static image was acquired at the regular time, then calculate the Geometric Center values (GC). Results: 1) The capsules can be clearly located through the colonic contour shown by 99 Tc m labeled sulfur colloid when it reached the large bowel. 2) The transiting time from mouth to cecum, through colon and through whole gastrointestinal in normal people were (6.61 +- 1.94), (36.61 +- 10.51) and (42.72 +- 10.02) h, respectively, in constipation group were (8.03 +- 3.63), (65.50 +- 28.40) and (74.05 +- 28.17) h, respectively. There was no significant difference (P > 0.05) in two groups compared with each other. But the transiting time through colon and whole gastrointestinal in constipation was slower than that in normal people, with significant difference (P < 0.01). 3) Through examination the colonic transit abnormality can be divided into three patterns: whole colon transit delay, right-colon transit delay and left-colon transit delay. Conclusions: This method is a simple, physiologic and quantitative in evaluating the colonic transit, it can also stage the colonic dyskinesia of the patients

Static electromagnetic properties of giant resonances

International Nuclear Information System (INIS)

Koo, W.K.

1986-03-01

Static electric monopole and quadrupole matrix elements, which are related to the mean square radius and quadrupole moment respectively, are derived for giant resonances of arbitrary multipolarity. The results furnish information on the size and shape of the nucleus in the excited giant states. (author)

ROBOTIC SURGERY FOR GIANT PRESACRAL DUMBBELL-SHAPE SCHWANNOMA

Directory of Open Access Journals (Sweden)

Farid Yudoyono

2015-03-01

Full Text Available Objective: To demonstrate the feasibility of using da Vinci robotic surgical system to perform spinal surgery. Methods: Magnetic resonance imaging (MRI of a 29-year-old female patient complaining right pelvic pain for 1 month revealed a 17x8x10 cm non-homogeneous dumbbell shape encapsulated mass with cystic change located in the pelvic cavity and caused an anterior displacement of urinary bladder and colon. Results: There was no systemic complication and pain decrease 24 hours after surgery and during 2 years of follow up. The patient started a diet 6 hours after the surgery and was discharged 72 hours after the surgery. The pathological diagnosis of the tumor was schwannoma. Conclusions: Giant dumbbell shape presacral schwannomas are rare tumours and their surgical treatment is challenging because of the complex anatomy of the presacral. Clinical application of da Vinci robotic surgical system in the spinal surgical field is currently confined to the treatment of some specific diseases or procedures. However, robotic surgery is expected to play a practical future role as it is minimally invasive. The advent of robotic technology will prove to be a boon to the neurosurgeon.

Colon interposition

International Nuclear Information System (INIS)

Isolauri, J.; Tampere Univ. Central Hospital; Paakkala, T.; Arajaervi, P.; Markkula, H.

1987-01-01

Colon interposition was carried out in 12 patients with oesophageal carcinoma and on 38 patients with benign oesophageal disease an average of 71 months before the radiographic examination. Various ischaemic changes including 'jejunization', loss of haustration and stricture formation were observed in 15 cases. In 12 patients one or several diverticula were seen in the colon graft. Reflux was observed in 17 cases in supine position. Double contrast technique in the examination of interposed colon is recommended. (orig.)

Percutaneous nephroscopic management of an isolated giant renal hydatid cyst guided by single-incision laparoscopy using conventional instruments: the Santosh-PGI technique.

Science.gov (United States)

Kumar, Santosh; Choudhary, Gautam R; Pushkarna, Arawat; Najjapa, Bhuvnesh; Ht, Vatasla

2013-11-01

Isolated renal hydatid rarely presents, but when it does occur, it requires surgical treatment. We report our experience with a novel technique involving percutaneous management of a giant renal hydatid cyst with single-incision laparoscopic assistance. First we performed retrograde ureteropyelogram, which did not show any communication between the cyst and the calyceal. A Veress needle was used for pneumoperitoneum. Three conventional laparoscopic trocars used. Under laparoscopic guidance, we punctured the cyst. The scolicidal solution used was 10% povidone-iodine. The endocyst was removed under vision with grasping forceps through the nephroscope. A Portex drain was placed into the cyst cavity. Percutaneous aspiration and instillation of scolicidal agents followed by re-aspiration have been previously reported. This is an attractive procedure because of its acceptable success rates and reduced morbidity. In our case, simple aspiration of the cyst would not have been successful because the cyst was full of daughter cysts. Also, a blind percutaneous puncture of the cyst and dilatation could have perforated the colon or the mesocolon, which is often wrapped over the surface of such giant cysts thereby making laparoscopic guidance and mobilization of the colon imperative. We devised this unique treatment method for this patient involving three conventional ports at a single umbilical site. We believe this is the first reported case of its kind in the world. Not only this technique is minimally invasive, it is also cost-effective, as only conventional laparoscopic ports and instruments are used during the procedure. © 2013 Japan Society for Endoscopic Surgery, Asia Endosurgery Task Force and Wiley Publishing Asia Pty Ltd.

LITHIUM-RICH GIANTS IN GLOBULAR CLUSTERS

Energy Technology Data Exchange (ETDEWEB)

Kirby, Evan N.; Cohen, Judith G. [California Institute of Technology, 1200 E. California Boulevard, MC 249-17, Pasadena, CA 91125 (United States); Guhathakurta, Puragra [UCO/Lick Observatory and Department of Astronomy and Astrophysics, University of California, 1156 High Street, Santa Cruz, CA 95064 (United States); Zhang, Andrew J. [The Harker School, 500 Saratoga Avenue, San Jose, CA 95129 (United States); Hong, Jerry [Palo Alto High School, 50 Embarcadero Road, Palo Alto, CA, 94301 (United States); Guo, Michelle [Stanford University, 450 Serra Mall, Stanford, CA 94305 (United States); Guo, Rachel [Irvington High School, 41800 Blacow Road, Fremont, CA 94538 (United States); Cunha, Katia [Observatório Nacional, São Cristóvão Rio de Janeiro (Brazil)

2016-03-10

Although red giants deplete lithium on their surfaces, some giants are Li-rich. Intermediate-mass asymptotic giant branch (AGB) stars can generate Li through the Cameron–Fowler conveyor, but the existence of Li-rich, low-mass red giant branch (RGB) stars is puzzling. Globular clusters are the best sites to examine this phenomenon because it is straightforward to determine membership in the cluster and to identify the evolutionary state of each star. In 72 hours of Keck/DEIMOS exposures in 25 clusters, we found four Li-rich RGB and two Li-rich AGB stars. There were 1696 RGB and 125 AGB stars with measurements or upper limits consistent with normal abundances of Li. Hence, the frequency of Li-richness in globular clusters is (0.2 ± 0.1)% for the RGB, (1.6 ± 1.1)% for the AGB, and (0.3 ± 0.1)% for all giants. Because the Li-rich RGB stars are on the lower RGB, Li self-generation mechanisms proposed to occur at the luminosity function bump or He core flash cannot explain these four lower RGB stars. We propose the following origin for Li enrichment: (1) All luminous giants experience a brief phase of Li enrichment at the He core flash. (2) All post-RGB stars with binary companions on the lower RGB will engage in mass transfer. This scenario predicts that 0.1% of lower RGB stars will appear Li-rich due to mass transfer from a recently Li-enhanced companion. This frequency is at the lower end of our confidence interval.

Giant Urinary Bladder and Bilateral Giant Hydronephrosis due to Bladder Neck Obstruction: One Case Report and Literature Review

Directory of Open Access Journals (Sweden)

Mohammed Fadl Tazi

2012-01-01

Full Text Available Bilateral hydronephrosis secondary to urinary obstruction leads to a buildup of back pressure in the urinary tract and may lead to impairment of renal function. Cases of giant hydronephrosis are rare and usually contain no more than 1-2 litres of fluid in the collecting system. Here, we report a rarely seen case with giant urinary bladder and bilateral giant hydronephrosis due to bladder neck obstruction which contains 4000 mL fluid in the collecting system of the kidney mimicking an ascites in an adult male.

Giant cell arteritis of fallopian tube.

Science.gov (United States)

Azzena, A; Altavilla, G; Salmaso, R; Vasoin, F; Pellizzari, P; Doria, A

1994-01-01

One case of giant cells arteritis involving tubaric arteries in a postmenopausal woman is described. The patient was 59 years old and presented with asthenia, anemia, fever, weight loss, an abdominal palpable mass and elevated erythrocyte sedimentation rate. Exploratory laparotomy revealed a large ovarian cyst of 14 cm in diameter. Extensive giant cell arteritis, Horton's type, of the small-sizes arteries was found unexpectedly in the fallopian tube of the patient who had had a prior ovariectomy. Giant cell arteritis of the female genital tract is a rare finding in elderly women and may occur as an isolated finding or as part of generalised arteritis.

Staged Closure of Giant Omphalocele using Synthetic Mesh

OpenAIRE

Parida, Lalit; Pal, Kamalesh; Al Buainain, Hussah; Elshafei, Hossam

2014-01-01

Giant omphalocele is difficult to manage and is associated with a poor outcome. A male newborn presented to our hospital with a giant omphalocele. We performed a staged closure of giant omphalocele using synthetic mesh to construct a silo and then mesh abdominoplasty in the neonatal period that led to a successful outcome within a reasonable period of hospital stay.

Enfermedad Diverticular del Colon

Directory of Open Access Journals (Sweden)

Gonzalo López Escobar

1991-06-01

Full Text Available

Los divertículos del colon han sido reconocidos por varios observadores desde hace más de un siglo, pero en su mayor parte se trataba de casos aislados, hoy se la considera como la enfermedad del siglo XX, la de la era moderna y de los países industrializados y de avanzada tecnología (5,18,33.

Según el diccionario de la Real Academia Española (11, divertículo, del latín, diverticulum, quiere decir desviación de un camino; y desde el punto de vista anatómico, apéndice hueco y terminado en fondo de saco. (Gráfica No. 1.

Goligher (17 lo define como la “posada al borde del camino, probablemente un lugar, a menudo, de mala reputación”.

Historia

Según Hackford (18, el proceso fué descrito brevemente por Littre a comienzos del siglo XVIII; pero se le atribuye a Cruveilhier la primera descripción como proceso patológico en 1849, quien, además, mencionó: “encontramos, no rara vez, en el sigmoide, entre las bandas de fibras musculares longitudinales, una serie de pequeños tumores piriformes oscuros, que están formados por hernias de la mucosa a través de brechas en la capa muscular” (17.

Fleischman en 1815 hizo la primera observación de la enfermedad y empleó el término divertículo (45.

Rokitansky en 1.849, habló de una enfermedad adquirida y consideró que su causa consistía en la constipación (45.

Virchowen 1853 describió la perisigmoiditis (45.

En 1859 Sidney Jones informó de una fístula colo-vesical debida a diverticulitis (5,45.

Loomis en 1870 describe una peritonitis como resultante de una diverticulitis (45.

En 1877 Ball describió la anatomía patológica de la enfermedad y presentó dos casos de fístula colovesical debidas a diverticulitis (9. Cripps en 1.888 popularizó la colostomía de desviación como tratamiento para la fístula colovesical(18...

Giant microelectronics

International Nuclear Information System (INIS)

Della Sala, D.; Privato, C.; Di Lazzaro, P.; Fortunato, G.

1999-01-01

Giant microelectronics, on which the technology of flat liquid-crystal screens is based, is an example of fruitful interaction among independently-developed technologies, in this case thin film micro devices and laser applications. It typifies the interdisciplinary approach needed to produce innovations in microelectronics [it

Giant prolactinomas in women

DEFF Research Database (Denmark)

Delgrange, Etienne; Raverot, Gerald; Bex, Marie

2014-01-01

OBJECTIVE: To characterise distinctive clinical features of giant prolactinomas in women. DESIGN: A multicentre, retrospective case series and literature review. METHODS: We collected data from 15 female patients with a pituitary tumour larger than 4 cm and prolactin levels above 1000 μg/l and id......OBJECTIVE: To characterise distinctive clinical features of giant prolactinomas in women. DESIGN: A multicentre, retrospective case series and literature review. METHODS: We collected data from 15 female patients with a pituitary tumour larger than 4 cm and prolactin levels above 1000 μg....../l and identified 19 similar cases from the literature; a gender-based comparison of the frequency and age distribution was obtained from a literature review. RESULTS: The initial PubMed search using the term 'giant prolactinomas' identified 125 patients (13 women) responding to the inclusion criteria. The female......:male ratio was 1:9. Another six female patients were found by extending the literature search, while our own series added 15 patients. The median age at diagnosis was 44 years in women compared with 35 years in men (Pwomen (n=34), we...

CT in colon cancer

International Nuclear Information System (INIS)

Fujita, Nobuyuki; Hasegawa, Takashi; Kubo, Kozo; Ogawa, Hajime; Sato, Yukihiko; Tomita, Masayoshi; Hanawa, Makoto; Matsuzawa, Tohru; Nishioka, Ken

1990-01-01

CT pictures from 59 lesions of advanced colon cancer including rectal cancer were reviewed to evaluate a role of CT in preoperative staging diagnosis. CT findings were recorded following general rules for clinical and pathological studies on cancer of colon rectum and anus, proposed by Japanese society for cancer of colon and rectum. Tumors were detected in 90% of advanced colon cancers. Sensitivity in local extension (S factor) was 58.0%. Sensitivity in lymphonode involvement (N factor) was 50.0%. Sensitivity in final staging diagnosis, dividing colon cancer into two groups below st II and above st III, was 63.3%. Further study should be necessitated to provide useful information for preoperative staging diagnosis of colon cancer. (author)

Observing giant panda habitat and forage abundance from space

NARCIS (Netherlands)

Wang, T.

2009-01-01

Giant pandas are obligate bamboo grazers. The bamboos favoured by giant
pandas are typical forest understorey plants. Therefore, the availability and
abundance of understorey bamboo is a key factor in determining the quantity
and quality of giant panda food resources. However,

Metastatic giant basal cell carcinoma: a case report.

Science.gov (United States)

Bellahammou, Khadija; Lakhdissi, Asmaa; Akkar, Othman; Rais, Fadoua; Naoual, Benhmidou; Elghissassi, Ibrahim; M'rabti, Hind; Errihani, Hassan

2016-01-01

Basal cell carcinoma is the most common skin cancer, characterised by a slow growing behavior, metastasis are extremely rare, and it occurs in less than 0, 1% of all cases. Giant basal cell carcinoma is a rare form of basal cell carcinoma, more aggressive and defined as a tumor measuring more than 5 cm at its largest diameter. Only 1% of all basal cell carcinoma develops to a giant basal cell carcinoma, resulting of patient's negligence. Giant basal cell carcinoma is associated with higher potential of metastasis and even death, compared to ordinary basal cell carcinoma. We report a case of giant basal cell carcinoma metastaticin lung occurring in a 79 years old male patient, with a fatal evolution after one course of systemic chemotherapy. Giant basal cell carcinoma is a very rare entity, early detection of these tumors could prevent metastasis occurrence and improve the prognosis of this malignancy.

Giant Chancroid

Directory of Open Access Journals (Sweden)

Bhushan Kumar

1980-01-01

Full Text Available A case of giant chancroid following rupture of inguinal bubo and having systemic symptoms is described. Response with sulfa and streptomycin combination was excellent and the lesion healed completely in 3 weeks. Early diagnosis and treatment of chancroid will prevent this debilitating complication.

Giant cystic craniopharyngiomas

International Nuclear Information System (INIS)

Young, S.C.; Zimmerman, R.A.; Nowell, M.A.; Bilaniuk, L.T.; Hackney, D.B.; Grossman, R.I.; Goldberg, H.I.

1987-01-01

Three cases of giant cystic craniopharyngiomas with large areas of extension beyond the suprasellar area are presented. The magnetic resonance (MR) appearance in one case is described. These giant tumors had large, multilobulated cysts that comprised the bulk of the tumors. In one case, there was an unusual extension of the large tumor cyst into the lateral ventricle. In two cases, the tumors extended to the level of the foramen magnum. On CT, the cyst contents of these two tumors were hyperdense and became hypodense postoperatively. All three tumors harbored calcifications in the form of clumps in the suprasellar region and rim calcifications around the cysts. None of the tumors exhibited contrast enhancement. A literature review of the radiographic features of craniopharyngiomas is discussed. (orig.)

On Landau Vlasov simulations of giant resonances

International Nuclear Information System (INIS)

Pi, M.; Schuck, P.; Suraud, E.; Gregoire, C.; Remaud, B.; Sebille, F.

1987-05-01

We present VUU calculations of giant resonances obtained in energetic heavy ion collisions. Also is considered the case of the giant dipole in 40 Ca and the possibility of studying the effects of rotation on such collective modes

Globally intertwined evolutionary history of giant barrel sponges

Science.gov (United States)

Swierts, Thomas; Peijnenburg, Katja T. C. A.; de Leeuw, Christiaan A.; Breeuwer, Johannes A. J.; Cleary, Daniel F. R.; de Voogd, Nicole J.

2017-09-01

Three species of giant barrel sponge are currently recognized in two distinct geographic regions, the tropical Atlantic and the Indo-Pacific. In this study, we used molecular techniques to study populations of giant barrel sponges across the globe and assessed whether the genetic structure of these populations agreed with current taxonomic consensus or, in contrast, whether there was evidence of cryptic species. Using molecular data, we assessed whether giant barrel sponges in each oceanic realm represented separate monophyletic lineages. Giant barrel sponges from 17 coral reef systems across the globe were sequenced for mitochondrial (partial CO1 and ATP6 genes) and nuclear (ATPsβ intron) DNA markers. In total, we obtained 395 combined sequences of the mitochondrial CO1 and ATP6 markers, which resulted in 17 different haplotypes. We compared a phylogenetic tree constructed from 285 alleles of the nuclear intron ATPsβ to the 17 mitochondrial haplotypes. Congruent patterns between mitochondrial and nuclear gene trees of giant barrel sponges provided evidence for the existence of multiple reproductively isolated species, particularly where they occurred in sympatry. The species complexes in the tropical Atlantic and the Indo-Pacific, however, do not form separate monophyletic lineages. This rules out the scenario that one species of giant barrel sponge developed into separate species complexes following geographic separation and instead suggests that multiple species of giant barrel sponges already existed prior to the physical separation of the Indo-Pacific and tropical Atlantic.

Colonic locomotion

NARCIS (Netherlands)

Dodou, D.

2006-01-01

The most effective screening method for colonic cancer is colonoscopy. However, colonoscopy cannot be easily embraced by the population because of the related pain intensity. Robotic devices that pull themselves forward through the colon are a possible alternative. The main challenge for such

Multipole giant resonances in highly excited nuclei

International Nuclear Information System (INIS)

Xia Keding; Cai Yanhuang

1989-01-01

The isoscalar giant surface resonance and giant dipole resonance in highly excited nuclei are discussed. Excitation energies of the giant modes in 208 Pb are calculated in a simplified model, using the concept of energy wieghted sum rule (EWSR), and the extended Thomas-Fermi approximation at the finite temperature is employed to describe the finite temperature is employed to describe the finite temperature equilibrium state. It is shown that EWSR and the energy of the resonance depend only weakly on temperature in the system. This weak dependence is analysed

Evidence for deformation effect on the giant monopole resonance

International Nuclear Information System (INIS)

Buenerd, M.; Lebrun, D.; Martin, P.; de Saintignon, P.; Perrin, C.

1980-01-01

The giant monopole resonance in the region of deformed nuclei has been investigated by inelastic scattering of 108.5 MeV 3 He at very small scattering angles. Evidence is reported for coupling between the giant monopole and giant quadrupole vibrations, based both on energy shift and transition strength

Fatal canine distemper virus infection of giant pandas in China.

Science.gov (United States)

Feng, Na; Yu, Yicong; Wang, Tiecheng; Wilker, Peter; Wang, Jianzhong; Li, Yuanguo; Sun, Zhe; Gao, Yuwei; Xia, Xianzhu

2016-06-16

We report an outbreak of canine distemper virus (CDV) infection among endangered giant pandas (Ailuropoda melanoleuca). Five of six CDV infected giant pandas died. The surviving giant panda was previously vaccinated against CDV. Genomic sequencing of CDV isolated from one of the infected pandas (giant panda/SX/2014) suggests it belongs to the Asia-1 cluster. The hemagglutinin protein of the isolated virus and virus sequenced from lung samples originating from deceased giant pandas all possessed the substitutions V26M, T213A, K281R, S300N, P340Q, and Y549H. The presence of the Y549H substitution is notable as it is found at the signaling lymphocytic activation molecule (SLAM) receptor-binding site and has been implicated in the emergence of highly pathogenic CDV and host switching. These findings demonstrate that giant pandas are susceptible to CDV and suggest that surveillance and vaccination among all captive giant pandas are warranted to support conservation efforts for this endangered species.

Colonic diverticulosis is not a risk factor for colonic adenoma.

Science.gov (United States)

Hong, Wandong; Dong, Lemei; Zippi, Maddalena; Stock, Simon; Geng, Wujun; Xu, Chunfang; Zhou, Mengtao

2018-01-01

Colonic diverticulosis may represent a risk factor for colonic adenomas by virtue of the fact that evolving data suggest that these 2 conditions may share common risk factors such as Western dietary pattern and physical inactivity. This study aims to investigate the association between colonic diverticulosis and colonic adenomas in mainland China. We conducted a cross-sectional study on patients who underwent colonoscopic examination between October 2013 and December 2014 in a university hospital in mainland China. Age, gender, colonic adenomas, advanced adenomas, and distribution of diverticulosis were recorded during the procedures. Multivariate logistic regression and stratified analysis were used to evaluate the associations between the prevalence of diverticulosis and age, sex, and presence of colonic adenomas and advanced adenomas. A total of 17,456 subjects were enrolled. The prevalence of colonic diverticulosis and adenoma was 2.4% and 13.2%, respectively. With regard to distribution of diverticula, most (365/424, 86.1%) were right-sided. Multiple logistic regression analysis suggested that age and male gender were independent risk factors for adenoma and advanced adenoma. There was no relationship between diverticulosis or location of diverticulosis and presence of adenoma and advanced adenoma adjusting by age and gender. In a stratified analysis according to age and gender, similar results were also noted. There was no statistical relationship between diverticulosis and the risk of adenoma and advanced adenoma. Our results may not be generalized to the Western population due to the fact that left-sided diverticular cases were very small in our study.

Giants among larges: how gigantism impacts giant virus entry into amoebae.

Science.gov (United States)

Rodrigues, Rodrigo Araújo Lima; Abrahão, Jônatas Santos; Drumond, Betânia Paiva; Kroon, Erna Geessien

2016-06-01

The proposed order Megavirales comprises the nucleocytoplasmic large DNA viruses (NCLDV), infecting a wide range of hosts. Over time, they co-evolved with different host cells, developing various strategies to penetrate them. Mimiviruses and other giant viruses enter cells through phagocytosis, while Marseillevirus and other large viruses explore endocytosis and macropinocytosis. These differing strategies might reflect the evolution of those viruses. Various scenarios have been proposed for the origin and evolution of these viruses, presenting one of the most enigmatic issues to surround these microorganisms. In this context, we believe that giant viruses evolved independently by massive gene/size gain, exploring the phagocytic pathway of entry into amoebas. In response to gigantism, hosts developed mechanisms to evade these parasites. Copyright © 2016 Elsevier Ltd. All rights reserved.

Colonic angiodysplasia

International Nuclear Information System (INIS)

Vallee, C.; Legmann, P.; Garnier, T.; Levesque, M.

1984-01-01

The main clinical, endoscopic and radiographic findings in thirty documented cases of colonic angiodysplasia or vacular ectasia are described. We emphasise the association with colonic diverticulosis and cardiovascular pathology, describe the histological changes, summarize the present physiopathological hypothesis, and consider the various therapeutic approaches. (orig.)

Literature review of giant gartersnake (Thamnophis gigas) biology and conservation

Science.gov (United States)

Halstead, Brian J.; Wylie, Glenn D.; Casazza, Michael L.

2015-08-03

This report reviews the available literature on giant gartersnakes (Thamnophis gigas) to compile existing information on this species and identify knowledge gaps that, if addressed, would help to inform conservation efforts for giant gartersnakes.  Giant gartersnakes comprise a species of semi-aquatic snake precinctive to wetlands in the Central Valley of California.  The diversion of surface water and conversion of wetlands to agricultural and other land uses resulted in the loss of more than 90 percent of natural giant gartersnake habitats.  Because of this habitat loss, giant gartersnakes are now listed by the United States and California Endangered Species Acts as Threatened.  Most extant populations occur in the rice-growing regions of the Sacramento Valley, which comprises the northern portion of the giant gartersnake’s former range.  The huge demand for water in California for agriculture, industry, recreation, and other human consumption, combined with periodic severe drought, places remaining giant gartersnake habitats at increased risk of degradation and loss.  This literature review summarizes the available information on giant gartersnake distribution, habitat relations, behavior, demography, and other aspects of its biology relevant to conservation.  This information is then compiled into a graphical conceptual model that indicates the importance of different aspects of giant gartersnake biology for maintaining positive population growth, and identifies those areas for which important information relevant for conservation is lacking.  Directing research efforts toward these aspects of giant gartersnake ecology will likely result in improvements to conserving this unique species while meeting the high demands for water in California.

Collisional damping of giant monopole and quadrupole resonances

International Nuclear Information System (INIS)

Yildirim, S.; Gokalp, A.; Yilmaz, O.; Ayik, S.

2001-01-01

Collisional damping widths of giant monopole and quadrupole excitations for 120 Sn and 208 Pb at zero and finite temperatures are calculated within Thomas-Fermi approximation by employing the microscopic in-medium cross-sections of Li and Machleidt and the phenomenological Skyrme and Gogny forces, and are compared with each other. The results for the collisional widths of giant monopole and quadrupole vibrations at zero temperature as a function of the mass number show that the collisional damping of giant monopole vibrations accounts for about 30 - 40% of the observed widths at zero temperature, while for giant quadrupole vibrations it accounts for only 20 - 30% of the observed widths at zero temperature. (orig.)

Giant cell phlebitis: a potentially lethal clinical entity.

Science.gov (United States)

Kunieda, Takeshige; Murayama, Masanori; Ikeda, Tsuneko; Yamakita, Noriyoshi

2012-08-01

An 83-year-old woman presented to us with a 4-week history of general malaise, subjective fever and lower abdominal pain. Despite the intravenous infusion of antibiotics, her blood results and physical condition worsened, resulting in her sudden death. Autopsy study revealed that the medium-sized veins of the mesentery were infiltrated by eosinophil granulocytes, lymphocytes, macrophages and multinucleated giant cells; however, the arteries were not involved. Microscopically, venous giant cell infiltration was observed in the gastrointestinal tract, bladder, retroperitoneal tissues and myocardium. The final diagnosis was giant cell phlebitis, a rare disease of unknown aetiology. This case demonstrates for the first time that giant cell phlebitis involving extra-abdominal organs, including hearts, can cause serious morbidity.

Hirschsprung's Disease-Related Giant Sigmoid Volvulus Complicated by Refractory Hypertension in an Elderly Man.

Science.gov (United States)

Wu, Shaohan; Sun, Xiaofang; Yu, Yawei; Shen, Yiyu

2018-04-20

BACKGROUND Sigmoid volvulus (SV) is a life-threatening condition occasionally seen in adults. Adult Hirschsprung's disease (HD)-related SV is rarely complicated by difficult-to-control hypertension. In this report we present the case of an elderly man with a rare constellation of HD, SV, and refractory hypertension. CASE REPORT An 82-year-old man had long-term constipation, moderate abdominal pain, and progressive abdominal distension. A CT scan revealed the typical "coffee bean sign". Blood pressure was abnormal high. Subsequently, the patient's condition deteriorated. Therefore, he underwent a Hartmann's procedure. A giant and redundant sigmoid colon (length more than 60 cm, maximal diameter about 15 cm) was demonstrated to be the cause of SV during the process of surgery. Moreover, abdominal compartment syndrome caused by SV resulted in his high and refractory blood pressure (BP). Postoperative pathological results revealed HD in his sigmoid colon. CONCLUSIONS SV is rarely combined with conditions like refractory hypertension or HD among the elderly. Clinical features of SV typically present with long-term constipation, severe abdominal pain, and progressive abdominal distension. The "coffee bean sign" could be observed in imaging examinations. It is important to note that the management of SV is to relieve the obstruction and prevent recurrence, no matter which therapy is used in elderly patients with Hirschsprung's disease.

A prognostic analysis of 895 cases of stage III colon cancer in different colon subsites.

Science.gov (United States)

Zhang, Yan; Ma, Junli; Zhang, Sai; Deng, Ganlu; Wu, Xiaoling; He, Jingxuan; Pei, Haiping; Shen, Hong; Zeng, Shan

2015-09-01

Stage III colon cancer is currently treated as an entity with a unified therapeutic principle. The aim of the retrospective study is to explore the clinicopathological characteristics and outcomes of site-specific stage III colon cancers and the influences of tumor location on prognosis. Eight hundred ninety-five patients with stage III colon cancer treated with radical operation and subsequent adjuvant chemotherapy (5-fluorouracil/oxaliplatin) were divided into seven groups according to colon segment (cecum, ascending colon, hepatic flexure, transverse colon, splenic flexure, descending colon, and sigmoid colon). Expression of excision repair cross-complementing group 1 (ERCC1) and thymidylate synthase (TS) was examined by immunohistochemistry. We assessed if differences exist in patient characteristics and clinic outcomes between the seven groups. There were significant differences in tumor differentiation (P Cancer (AJCC) tumor-node-metastasis (TNM) stage (P colon. Cox regression analyses identified that tumor location was an independent prognostic factor for RFS and OS. Stage III colon cancer located proximally carried a poorer survival than that located distally. Different efficacies of FOLFOX adjuvant chemotherapy may be an important factor affecting survival of site-specific stage III colon cancers.

Colonic lipoma

International Nuclear Information System (INIS)

Siddiqui, M.S.; Khatri, A.R.; Quraishy, M.S.; Fatima, L.; Muzaffar, S.

2003-01-01

Lipoma of the colon is rare and may lead to intestinal obstruct. We have presented two cases of colonic lipoma. Both were elderly females, one presented with diarrhea and the other with sub-acute intestinal obstruction. After colonoscopy surgical removal was done. Histopathology revealed lipoma. (author)

Multispin giant magnons

International Nuclear Information System (INIS)

Bobev, N. P.; Rashkov, R. C.

2006-01-01

We investigate giant magnons from classical rotating strings in two different backgrounds. First we generalize the solution of Hofman and Maldacena and investigate new magnon excitations of a spin chain which are dual to a string on RxS 5 with two nonvanishing angular momenta. Allowing string dynamics along the third angle in the five sphere, we find a dispersion relation that reproduces the Hofman and Maldacena one and the one found by Dorey for the two spin case. In the second part of the paper we generalize the two 'spin' giant magnon to the case of β-deformed AdS 5 xS 5 background. We find agreement between the dispersion relation of the rotating string and the proposed dispersion relation of the magnon bound state on the spin chain

Giant Congenital Melanocytic Naevi: review of literature

Directory of Open Access Journals (Sweden)

A. Marchesi

2012-04-01

Full Text Available giant congenital pigmented naevi is a great reconstructive challenge for the pediatric and plastic surgeons. due to the increased risk of malignant transformation in such lesions, many procedures have been used to remove giant congenital naevi like dermoabrasion, laser treatment or surgical excision combined with reconstruction through skin expansion or skin grafting; among these, only a complete excision can offer an efficacious treatment. in our centre we use the “tissue expansion” technique in order to achieve a sufficient quantity of normal skin to perform a both staged and radical excision of these giant lesions.

Management of Colonic Volvulus

Science.gov (United States)

Gingold, Daniel; Murrell, Zuri

2012-01-01

Colonic volvulus is a common cause of large bowel obstruction worldwide. It can affect all parts of the colon, but most commonly occurs in the sigmoid and cecal areas. This disease has been described for centuries, and was studied by Hippocrates himself. Currently, colonic volvulus is the third most common cause of large bowel obstruction worldwide, and is responsible for ∼15% of large bowel obstructions in the United States. This article will discuss the history of colonic volvulus, and the predisposing factors that lead to this disease. Moreover, the epidemiology and diagnosis of each type of colonic volvulus, along with the various treatment options will be reviewed. PMID:24294126

Fatal canine distemper virus infection of giant pandas in China

Science.gov (United States)

Feng, Na; Yu, Yicong; Wang, Tiecheng; Wilker, Peter; Wang, Jianzhong; Li, Yuanguo; Sun, Zhe; Gao, Yuwei; Xia, Xianzhu

2016-01-01

We report an outbreak of canine distemper virus (CDV) infection among endangered giant pandas (Ailuropoda melanoleuca). Five of six CDV infected giant pandas died. The surviving giant panda was previously vaccinated against CDV. Genomic sequencing of CDV isolated from one of the infected pandas (giant panda/SX/2014) suggests it belongs to the Asia-1 cluster. The hemagglutinin protein of the isolated virus and virus sequenced from lung samples originating from deceased giant pandas all possessed the substitutions V26M, T213A, K281R, S300N, P340Q, and Y549H. The presence of the Y549H substitution is notable as it is found at the signaling lymphocytic activation molecule (SLAM) receptor-binding site and has been implicated in the emergence of highly pathogenic CDV and host switching. These findings demonstrate that giant pandas are susceptible to CDV and suggest that surveillance and vaccination among all captive giant pandas are warranted to support conservation efforts for this endangered species. PMID:27310722

CT findings of colonic diverticulitis

International Nuclear Information System (INIS)

Sasaki, Shigeru; Ohba, Satoru; Mizutani, Masaru

1998-01-01

Although colonic diverticulitis has no indication for operation, but in some mistaken cases were operated with a diagnosis of acute appendicitis. We evaluated the CT findings of colonic diverticulitis about 19 cases and of asymptomatic colonic diverticula about 15 cases retrospectively. Diagnosis was confirmed of barium enema and operation. CT are complementary methods of examination that can delineated the range of thickening of the colon and the extension of inflammatory changes around the colon. We also believe that CT findings of colonic diverticulitis are useful for differentiating from a diagnosis of appendicitis. (author)

Giant urinary bladder calculus: Case report | Otieno | East African ...

African Journals Online (AJOL)

A vertical calculus weighing more than 100 g is categorised as a giant urinary bladder stone. Giant urinary bladder stones are very rare and very few cases have been reported in English literature and only one case from Africa. This is a case report of a patient with a giant urinary bladder calculus presenting as a rectal ...

Giant cell angiofibroma or localized periorbital lymphedema?

Science.gov (United States)

Lynch, Michael C; Chung, Catherine G; Specht, Charles S; Wilkinson, Michael; Clarke, Loren E

2013-12-01

Giant cell angiofibroma represents a rare soft tissue neoplasm with a predilection for the orbit. We recently encountered a mass removed from the lower eyelid of a 56-year-old female that histopathologically resembled giant cell angiofibroma. The process consisted of haphazardly arranged CD34-positive spindled and multinucleated cells within an edematous, densely vascular stroma. However, the patient had recently undergone laryngectomy and radiotherapy for a laryngeal squamous cell carcinoma. A similar mass had arisen on the contralateral eyelid, and both had developed several months post-therapy. Lymphedema of the orbit can present as tumor-like nodules and in some cases may share histopathologic features purported to be characteristic of giant cell angiofibroma. A relationship between giant cell angiofibroma and lymphedema has not been established, but our case suggests there may be one. The potential overlap of these two conditions should be recognized, as should other entities that may enter the differential diagnosis. © 2013 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

[Giant paraovarian cyst in childhood - Case report].

Science.gov (United States)

Torres, Janina P; Íñiguez, Rodrigo D

2015-01-01

Paraovarian cysts are very uncommon in children To present a case of giant paraovarian cyst case in a child and its management using a modified laparoscopic-assisted technique A 13-year-old patient with a 15 day-history of intermittent abdominal pain, located in the left hemiabdomen and associated with progressive increase in abdominal volume. Diagnostic imaging was inconclusive, describing a giant cystic formation that filled up the abdomen, but without specifying its origin. Laboratory tests and tumor markers were within normal range. Video-assisted transumbilical cystectomy, a modified laparoscopic procedure with diagnostic and therapeutic intent, was performed with a successful outcome. The histological study reported giant paraovarian cyst. Cytology results were negative for tumor cells. The patient remained asymptomatic during the postoperative follow-up. The video-assisted transumbilical cystectomy is a safe procedure and an excellent diagnostic and therapeutic alternative for the treatment of giant paraovarian cysts. Copyright © 2015. Publicado por Elsevier España, S.L.U.

[Tissular expansion in giant congenital nevi treatment].

Science.gov (United States)

Nguyen Van Nuoi, V; Francois-Fiquet, C; Diner, P; Sergent, B; Zazurca, F; Franchi, G; Buis, J; Vazquez, M-P; Picard, A; Kadlub, N

2014-08-01

Surgical management of giant melanotic naevi remains a surgical challenge. Tissue expansion provides tissue of the same quality for the repair of defects. The aim of this study is to review tissular expansion for giant melanotic naevi. We conducted a retrospective study from 2000 to 2012. All children patients who underwent a tissular expansion for giant congenital naevi had been included. Epidemiological data, surgical procedure, complication rate and results had been analysed. Thirty-tree patients had been included; they underwent 61 procedures with 79 tissular-expansion prosthesis. Previous surgery, mostly simple excision had been performed before tissular expansion. Complete naevus excision had been performed in 63.3% of the cases. Complications occurred in 45% of the cases, however in 50% of them were minor. Iterative surgery increased the complication rate. Tissular expansion is a valuable option for giant congenital naevus. However, complication rate remained high, especially when iterative surgery is needed. Copyright © 2013 Elsevier Masson SAS. All rights reserved.

Giant Serous Cystadenoma of the Pancreas (⩾10 cm: The Clinical Features and CT Findings

Directory of Open Access Journals (Sweden)

Qing-Yu Liu

2016-01-01

Full Text Available Purpose. To report the clinical features and CT manifestations of giant pancreatic serous cystadenoma (≥10 cm. Methods. We retrospectively reviewed the clinical features and CT findings of 6 cases of this entity. Results. All 6 patients were symptomatic. The tumors were 10.2 cm–16.5 cm (median value, 13.0 cm. CT imaging revealed that all 6 cases showed microcystic appearances (n=5 or mixed microcystic and macrocystic appearances (n=1. Five patients with tumors at the distal end of the pancreas received distal pancreatectomy. Among these 5 patients, 2 patients underwent partial transverse colon resection or omentum resection due to close adhesion. One patient whose tumor was located in the pancreatic head underwent pancreaticoduodenectomy; however, due to encasement of the portal and superior mesenteric veins, the tumor was incompletely resected. One patient had abundant draining veins on the tumor surface and suffered large blood loss (700 mL. After 6–49 months of follow-up the 6 patients showed no tumor recurrence or signs of malignant transformation. Conclusions. Giant pancreatic serous cystadenoma necessitates surgical resection due to large size, symptoms, uncertain diagnosis, and adjacent organ compression. The relationship between the tumors and the neighboring organs needs to be carefully assessed before operation on CT image.

AGB [asymptotic giant branch]: Star evolution

International Nuclear Information System (INIS)

Becker, S.A.

1987-01-01

Asymptotic giant branch stars are red supergiant stars of low-to-intermediate mass. This class of stars is of particular interest because many of these stars can have nuclear processed material brought up repeatedly from the deep interior to the surface where it can be observed. A review of recent theoretical and observational work on stars undergoing the asymptotic giant branch phase is presented. 41 refs

Divertículo faringoesofagiano: avaliação dos resultados do tratamento Pharyngoesophageal diverticulum: evaluation of treatment results

Directory of Open Access Journals (Sweden)

Maria Aparecida Coelho de Arruda Henry

2013-04-01

Full Text Available OBJETIVO: Avaliar a evolução pós-operatória de pacientes com divertículo faringoesofagiano submetidos aos tratamentos cirúrgico e endoscópico. MÉTODOS: Foram analisados de maneira retrospectiva 36 pacientes com divertículo faringo-esofagiano atendidos no Hospital das Clínicas da Faculdade de Medicina de Botucatu - UNESP. Os pacientes foram distribuídos em dois grupos, na dependência do tratamento: grupo 1 (n=24 - diverticulectomia associada á miotomia do cricofaríngeo, através de cervicotomia esquerda; grupo 2 (n=12 - diverticulostomia endoscópica usando grampeador linear. RESULTADOS: A mortalidade operatória foi nula em ambos os grupos. Complicações precoces: grupo 1 - dois pacientes desenvolveram fistula cervical e outros dois, rouquidão; grupo 2 - sem complicações. Complicações tardias: grupo 1 - sem complicações: grupo 2: recidiva da disfagia em quatro pacientes (p=0,01. O seguimento médio foi 33 meses para o grupo 1 e 28 meses para o grupo 2. CONCLUSÃO: Os dois procedimentos foram eficazes na remissão da disfagia. O tratamento cirúrgico apresentou superioridade em relação ao endoscópico, com resolução da disfagia com um único procedimento. O tratamento endoscópico deve ser reservado para os mais idosos e portadores de comorbidades.OBJECTIVE: To evaluate the postoperative outcome of patients with pharyngoesophageal diverticulum submitted to surgical and endoscopic treatments. METHODS: We retrospectively analyzed 36 patients with pharyngo-esophageal diverticulum treated at the Hospital of the Medical School of Botucatu - UNESP. Patients were divided into two groups, depending on the treatment: group 1 (n = 24: diverticulectomy associated myotomy through a left cervicotomy; group 2 (n = 12: endoscopic diverticulostomy with linear stapler. RESULTS: Operative mortality was zero in both groups. Early complications: group 1- two patients developed cervical fistula and two, hoarseness; group 2 - none. Late

Nutritional evaluation of the giant grassropper (Zonocerus ...

African Journals Online (AJOL)

The biological value of giant grasshopper protein (Zonocerus variegatus) was evaluated by comparing the weight gained, food efficiency ratio (FER), protein efficiency ratio (PER) of rats fed standard laboratory chow with that of rats fed giant grasshopper, Soyabean(Glycine max) and crayfish. The effect of high fibre content ...

RE-INFLATED WARM JUPITERS AROUND RED GIANTS

Energy Technology Data Exchange (ETDEWEB)

Lopez, Eric D. [Institute for Astronomy, Royal Observatory Edinburgh, University of Edinburgh, Blackford Hill, Edinburgh (United Kingdom); Fortney, Jonathan J. [Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States)

2016-02-10

Since the discovery of the first transiting hot Jupiters, models have sought to explain the anomalously large radii of highly irradiated gas giants. We now know that the size of hot Jupiter radius anomalies scales strongly with a planet's level of irradiation and numerous models like tidal heating, ohmic dissipation, and thermal tides have since been developed to help explain these inflated radii. In general, however, these models can be grouped into two broad categories: models that directly inflate planetary radii by depositing a fraction of the incident irradiation into the interior and models that simply slow a planet's radiative cooling, allowing it to retain more heat from formation and thereby delay contraction. Here we present a new test to distinguish between these two classes of models. Gas giants orbiting at moderate orbital periods around post-main-sequence stars will experience enormous increases to their irradiation as their host stars move up the sub-giant and red-giant branches. If hot Jupiter inflation works by depositing irradiation into the planet's deep interiors then planetary radii should increase in response to the increased irradiation. This means that otherwise non-inflated gas giants at moderate orbital periods of >10 days can re-inflate as their host stars evolve. Here we explore the circumstances that can lead to the creation of these “re-inflated” gas giants and examine how the existence or absence of such planets can be used to place unique constraints on the physics of the hot Jupiter inflation mechanism. Finally, we explore the prospects for detecting this potentially important undiscovered population of planets.

Giant duodenal ulcers

Institute of Scientific and Technical Information of China (English)

Eric Benjamin Newton; Mark R Versland; Thomas E Sepe

2008-01-01

Giant duodenal ulcers (GDUs) are a subset of duodenal ulcers that have historically resulted in greater morbidity than usual duodenal ulcers. Until recently,few cases had been successfully treated with medical therapy. However, the widespread use of endoscopy,the introduction of H-2 receptor blockers and proton pump inhibitors, and the improvement in surgical techniques all have revolutionized the diagnosis,treatment and outcome of this condition. Nevertheless,GDUs are still associated with high rates of morbidity,mortality and complications. Thus, surgical evaluation of a patient with a GDU should remain an integral part of patient care. These giant variants, while usually benign, can frequently harbor malignancy. A careful review of the literature highlights the important differences when comparing GDUs to classical peptic ulcers and why they must be thought of differently than their more common counterpart.

Colon Trauma: Evidence-Based Practices.

Science.gov (United States)

Yamamoto, Ryo; Logue, Alicia J; Muir, Mark T

2018-01-01

Colon injury is not uncommon and occurs in about a half of patients with penetrating hollow viscus injuries. Despite major advances in the operative management of penetrating colon wounds, there remains discussion regarding the appropriate treatment of destructive colon injuries, with a significant amount of scientific evidence supporting segmental resection with primary anastomosis in most patients without comorbidities or large transfusion requirement. Although literature is sparse concerning the management of blunt colon injuries, some studies have shown operative decision based on an algorithm originally defined for penetrating wounds should be considered in blunt colon injuries. The optimal management of colonic injuries in patients requiring damage control surgery (DCS) also remains controversial. Studies have recently reported that there is no increased risk compared with patients treated without DCS if fascial closure is completed on the first reoperation, or that a management algorithm for penetrating colon wounds is probably efficacious for colon injuries in the setting of DCS as well.

Colonic Diverticulitis in the Elderly

Directory of Open Access Journals (Sweden)

Chien-Kuo Liu

2009-03-01

Full Text Available Diverticular disease of the colon is a disease that mainly affects the elderly and presents in 50–70% of those aged 80 years or older. The most common complication is colonic diverticulitis. Eighty percent of patients who present with colonic diverticulitis are aged 50 years and older. Diagnosis and treatment of colonic diverticulitis in the elderly is more difficult and complicated owing to more comorbid conditions. Computed tomography is recommended for diagnosis when colonic diverticulitis is suspected. Most patients admitted with acute colonic diverticulitis respond to conservative treatment, but 15–30% of patients require surgery. Because surgery for acute colonic diverticulitis carries significant rates of morbidity and mortality, conservative treatment is recommended in the elderly. Conservative treatment of colonic diverticulitis with antibiotics, bowel rest, possibly including parenteral alimentation, is usually applied for 1–2 weeks. In the absence of a response to conservative treatment, frequent recurrence or complications (abscesses, fistulas, bowel obstructions, and free perforations, surgery is indicated.

Multifocal tenosynovial giant cell tumors in a child with Noonan syndrome

Energy Technology Data Exchange (ETDEWEB)

Meyers, Arthur B. [Children' s Hospital of Wisconsin, Department of Radiology, Milwaukee, WI (United States); Nemours Children' s Health System/Nemours Children' s Hospital, Department of Radiology, Orlando, FL (United States); Awomolo, Agboola O. [Children' s Hospital of Wisconsin, Department of Radiology, Milwaukee, WI (United States); Szabo, Sara [Medical College of Wisconsin and Children' s Hospital of Wisconsin, Department of Pathology, Milwaukee, WI (United States); Cincinnati Children' s Hospital Medical Center, Division of Pathology and Laboratory Medicine, Cincinnati, OH (United States)

2017-03-15

Noonan syndrome is a genetic disorder with variable expression of distinctive facial features, webbed neck, chest deformity, short stature, cryptorchidism and congenital heart disease. The association of Noonan syndrome and giant cell granulomas of the mandible is widely reported. However, Noonan syndrome may also be associated with single or multifocal tenosynovial giant cell tumors, also referred to as pigmented villonodular synovitis. We report a child with Noonan syndrome, giant cell granulomas of the mandible and synovial and tenosynovial giant cell tumors involving multiple joints and tendon sheaths who was initially misdiagnosed with juvenile idiopathic arthritis. It is important for radiologists to be aware of the association of Noonan syndrome and multifocal giant cell lesions, which can range from the more commonly described giant cell granulomas of the mandible to isolated or multifocal intra- or extra-articular tenosynovial giant cell tumors or a combination of all of these lesions. (orig.)

Multifocal tenosynovial giant cell tumors in a child with Noonan syndrome.

Science.gov (United States)

Meyers, Arthur B; Awomolo, Agboola O; Szabo, Sara

2017-03-01

Noonan syndrome is a genetic disorder with variable expression of distinctive facial features, webbed neck, chest deformity, short stature, cryptorchidism and congenital heart disease. The association of Noonan syndrome and giant cell granulomas of the mandible is widely reported. However, Noonan syndrome may also be associated with single or multifocal tenosynovial giant cell tumors, also referred to as pigmented villonodular synovitis. We report a child with Noonan syndrome, giant cell granulomas of the mandible and synovial and tenosynovial giant cell tumors involving multiple joints and tendon sheaths who was initially misdiagnosed with juvenile idiopathic arthritis. It is important for radiologists to be aware of the association of Noonan syndrome and multifocal giant cell lesions, which can range from the more commonly described giant cell granulomas of the mandible to isolated or multifocal intra- or extra-articular tenosynovial giant cell tumors or a combination of all of these lesions.

Multifocal tenosynovial giant cell tumors in a child with Noonan syndrome

International Nuclear Information System (INIS)

Meyers, Arthur B.; Awomolo, Agboola O.; Szabo, Sara

2017-01-01

Noonan syndrome is a genetic disorder with variable expression of distinctive facial features, webbed neck, chest deformity, short stature, cryptorchidism and congenital heart disease. The association of Noonan syndrome and giant cell granulomas of the mandible is widely reported. However, Noonan syndrome may also be associated with single or multifocal tenosynovial giant cell tumors, also referred to as pigmented villonodular synovitis. We report a child with Noonan syndrome, giant cell granulomas of the mandible and synovial and tenosynovial giant cell tumors involving multiple joints and tendon sheaths who was initially misdiagnosed with juvenile idiopathic arthritis. It is important for radiologists to be aware of the association of Noonan syndrome and multifocal giant cell lesions, which can range from the more commonly described giant cell granulomas of the mandible to isolated or multifocal intra- or extra-articular tenosynovial giant cell tumors or a combination of all of these lesions. (orig.)

Giant Panda habitat selection in the Foping Nature Reserve, China

NARCIS (Netherlands)

Liu, X.; Toxopeus, A.G.; Skidmore, A.K.; Shao, X.; Dang, D.; Wang, T.; Prins, H.H.T.

2005-01-01

Little is known about habitat selection of the giant panda (Ailuropoda melanoleuca), especially about the relationship between giant panda presence and bamboo and tree structures. We presented data on giant panda habitat use and selection in Foping Nature Reserve (NR), China. We used 1,066

Gamma graphic findings in giant hepatic hemangioma

International Nuclear Information System (INIS)

Cano, R.; Morales, R.; Mendoza, P.; Ramirez, E.; Aguilar, C.

1994-01-01

The aim of the present work is to describe gamma graphic findings in patients with giant hepatic hemangiomas, when evaluated with 99m Tc red blood cell (RBC) imaging. Three patients with clinical suspicion of giant hepatic hemangiomas, who had had, ultrasound and computed tomography were studied with RBC using in vivo labelling with pyrophosphate. All cases had dynamic and static views. All cases showed hypoperfusion in dynamics views and over perfusion in delayed studies. Surgery confirmed diagnosis in two cases. 99m Tc RBC is a good method for diagnosis of giant hepatic hemangioma, which generally needs surgical treatment. (Authors). 24 refs., 2 figs

Totally thrombosed giant anterior communicating artery aneurysm

Directory of Open Access Journals (Sweden)

V R Roopesh Kumar

2015-01-01

Full Text Available Giant anterior communicating artery aneurysmsarerare. Apatient presented with visual dysfunction, gait ataxia and urinary incontinence. MRI showed a giant suprasellar mass.At surgery, the lesion was identified as being an aneurysm arising from the anterior communicating artery.The difficulty in preoperative diagnosis and relevant literature are reviewed.

New properties of giant resonances in highly excited nuclei

International Nuclear Information System (INIS)

Morsch, H.P.

1991-01-01

Studies on the giant dipole resonance in very hot nuclei investigated in heavy ion-induced particle-γ coincidence experiments are reviewed. A signature is found in the γ-decay of excited nuceli which shows direct decay of the giant dipole resonance. This provides a new dimension in giant resonance studies and the possibility to study the dependence of giant resonance energy, width and sum rule strength on excitation energy and rotation of the system. Further, the fact that the giant resonance splits in deformed nuclei provides a unique way to get information on the shape of hot nuclei. First results are obtained on the following questions: (i)What is the nuclear shape at high temperature (T≥2 MeV)? (ii)Is there a phase transition in the nuclear shape at T∼1.7 MeV? (iii)Does motional narrowing exist in hot nuclei? (author). 19 refs., 11 figs

Logical hypothesis: Low FODMAP diet to prevent diverticulitis

Science.gov (United States)

Uno, Yoshiharu; van Velkinburgh, Jennifer C

2016-01-01

Despite little evidence for the therapeutic benefits of a high-fiber diet for diverticulitis, it is commonly recommended as part of the clinical management. The ongoing uncertainty of the cause(s) of diverticulitis confounds attempts to determine the validity of this therapy. However, the features of a high-fiber diet represent a logical contradiction for colon diverticulitis. Considering that Bernoulli’s principle, by which enlarged diameter of the lumen leads to increased pressure and decreased fluid velocity, might contribute to development of the diverticulum. Thus, theoretically, prevention of high pressure in the colon would be important and adoption of a low FODMAP diet (consisting of fermentable oligosaccharides, disaccharides, monosaccharides, and polyols) may help prevent recurrence of diverticulitis. PMID:27867683

Statistical decay of giant resonances

International Nuclear Information System (INIS)

Dias, H.; Teruya, N.; Wolynec, E.

1986-01-01

Statistical calculations to predict the neutron spectrum resulting from the decay of Giant Resonances are discussed. The dependence of the resutls on the optical potential parametrization and on the level density of the residual nucleus is assessed. A Hauser-Feshbach calculation is performed for the decay of the monople giant resonance in 208 Pb using the experimental levels of 207 Pb from a recent compilation. The calculated statistical decay is in excelent agreement with recent experimental data, showing that the decay of this resonance is dominantly statistical, as predicted by continuum RPA calculations. (Author) [pt

Statistical decay of giant resonances

International Nuclear Information System (INIS)

Dias, H.; Teruya, N.; Wolynec, E.

1986-02-01

Statistical calculations to predict the neutron spectrum resulting from the decay of Giant Resonances are discussed. The dependence of the results on the optical potential parametrization and on the level density of the residual nucleus is assessed. A Hauser-Feshbach calculation is performed for the decay of the monopole giant resonance in 208 Pb using the experimental levels of 207 Pb from a recent compilation. The calculated statistical decay is in excellent agreement with recent experimental data, showing that decay of this resonance is dominantly statistical, as predicted by continuum RPA calculations. (Author) [pt

Generation of an inducible colon-specific Cre enzyme mouse line for colon cancer research.

Science.gov (United States)

Tetteh, Paul W; Kretzschmar, Kai; Begthel, Harry; van den Born, Maaike; Korving, Jeroen; Morsink, Folkert; Farin, Henner; van Es, Johan H; Offerhaus, G Johan A; Clevers, Hans

2016-10-18

Current mouse models for colorectal cancer often differ significantly from human colon cancer, being largely restricted to the small intestine. Here, we aim to develop a colon-specific inducible mouse model that can faithfully recapitulate human colon cancer initiation and progression. Carbonic anhydrase I (Car1) is a gene expressed uniquely in colonic epithelial cells. We generated a colon-specific inducible Car1 CreER knock-in (KI) mouse with broad Cre activity in epithelial cells of the proximal colon and cecum. Deletion of the tumor suppressor gene Apc using the Car1 CreER KI caused tumor formation in the cecum but did not yield adenomas in the proximal colon. Mutation of both Apc and Kras yielded microadenomas in both the cecum and the proximal colon, which progressed to macroadenomas with significant morbidity. Aggressive carcinomas with some invasion into lymph nodes developed upon combined induction of oncogenic mutations of Apc, Kras, p53, and Smad4 Importantly, no adenomas were observed in the small intestine. Additionally, we observed tumors from differentiated Car1-expressing cells with Apc/Kras mutations, suggesting that a top-down model of intestinal tumorigenesis can occur with multiple mutations. Our results establish the Car1 CreER KI as a valuable mouse model to study colon-specific tumorigenesis and metastasis as well as cancer-cell-of-origin questions.

Asteroseismology of 16,000 Kepler Red Giants

DEFF Research Database (Denmark)

Yu, Jie; Huber, Daniel; Bedding, Timothy R.

2018-01-01

(sigma(M) = 7.8%), radius (sigma(R) = 2.9%), and thus surface gravity (sigma(log g) = 0.01 dex). Thanks to the large red giant sample, we confirm that red-giant-branch (RGB) and helium-core-burning (HeB) stars collectively differ in the distribution of oscillation amplitude, granulation power, and width...

Giant hydronephrosis mimicking progressive malignancy

Science.gov (United States)

Schrader, Andres Jan; Anderer, Georgia; von Knobloch, Rolf; Heidenreich, Axel; Hofmann, Rainer

2003-01-01

Background Cases of giant hydronephroses are rare and usually contain no more than 1–2 litres of fluid in the collecting system. We report a remarkable case of giant hydronephrosis mimicking a progressive malignant abdominal tumour. Case presentation A 78-year-old cachectic woman presented with an enormous abdominal tumour, which, according to the patient, had slowly increased in diameter. Medical history was unremarkable except for a hysterectomy >30 years before. A CT scan revealed a giant cystic tumour filling almost the entire abdominal cavity. It was analysed by two independent radiologists who suspected a tumour originating from the right kidney and additionally a cystic ovarian neoplasm. Subsequently, a diagnostic and therapeutic laparotomy was performed: the tumour presented as a cystic, 35 × 30 × 25 cm expansive structure adhesive to adjacent organs without definite signs of invasive growth. The right renal hilar vessels could finally be identified at its basis. After extirpation another tumourous structure emerged in the pelvis originating from the genital organs and was also resected. The histopathological examination revealed a >15 kg hydronephrotic right kidney, lacking hardly any residual renal cortex parenchyma. The second specimen was identified as an ovary with regressive changes and a large partially calcified cyst. There was no evidence of malignant growth. Conclusion Although both clinical symptoms and the enormous size of the tumour indicated malignant growth, it turned out to be a giant hydronephrosis. Presumably, a chronic obstruction of the distal ureter had caused this extraordinary hydronephrosis. As demonstrated in our case, an accurate diagnosis of giant hydronephrosis remains challenging due to the atrophy of the renal parenchyma associated with chronic obstruction. Therefore, any abdominal cystic mass even in the absence of other evident pathologies should include the differential diagnosis of a possible hydronephrosis. Diagnostic

Transverse loop colostomy and colonic motility.

Science.gov (United States)

Pucciani, F; Ringressi, M N; Maltinti, G; Bechi, P

2014-11-01

The motility of the defunctionalized colon, distal to transverse loop colostomy, has never been studied "in vivo." The aim of our study was to evaluate the influence of transverse loop colostomy on colonic motility. Thirteen patients were examined before stoma closure by means of clinical evaluation and colonic manometry; we studied both the right and distal colon in both fasting and fed patients in order to detect motor activity. Quantitative and qualitative manometric analyses showed that the diverted colon had motor activity even if no regular colonic motor pattern was observed. The spreading of aboral propagated contractions (PCs) was sometimes recorded from the right colon to the distal colon. The response of the proximal and distal colon to a standard meal, when compared to fasting values, increased more than 40 and 35 %, respectively. Stool and gas ejections from the colostomy were never related to a particular type of colonic motility: Motor quiescence such as PCs was chaotically related to stool escape. In conclusion, motility of the defunctionalized colon is preserved in patients with transverse loop colostomy.

Modeling and simulation of flow field in giant magnetostrictive pump

Science.gov (United States)

Zhao, Yapeng; Ren, Shiyong; Lu, Quanguo

2017-09-01

Recent years, there has been significant research in the design and analysis of giant magnetostrictive pump. In this paper, the flow field model of giant magnetostrictive pump was established and the relationship between pressure loss and working frequency of piston was studied by numerical simulation method. Then, the influence of different pump chamber height on pressure loss in giant magnetostrictive pump was studied by means of flow field simulation. Finally, the fluid pressure and velocity vector distribution in giant magnetostrictive pump chamber were simulated.

Revealing the microstructure of the giant component in random graph ensembles

Science.gov (United States)

Tishby, Ido; Biham, Ofer; Katzav, Eytan; Kühn, Reimer

2018-04-01

The microstructure of the giant component of the Erdős-Rényi network and other configuration model networks is analyzed using generating function methods. While configuration model networks are uncorrelated, the giant component exhibits a degree distribution which is different from the overall degree distribution of the network and includes degree-degree correlations of all orders. We present exact analytical results for the degree distributions as well as higher-order degree-degree correlations on the giant components of configuration model networks. We show that the degree-degree correlations are essential for the integrity of the giant component, in the sense that the degree distribution alone cannot guarantee that it will consist of a single connected component. To demonstrate the importance and broad applicability of these results, we apply them to the study of the distribution of shortest path lengths on the giant component, percolation on the giant component, and spectra of sparse matrices defined on the giant component. We show that by using the degree distribution on the giant component one obtains high quality results for these properties, which can be further improved by taking the degree-degree correlations into account. This suggests that many existing methods, currently used for the analysis of the whole network, can be adapted in a straightforward fashion to yield results conditioned on the giant component.

Surgical management of giant posterior communicating artery aneurysms.

Science.gov (United States)

Velat, Gregory J; Zabramski, Joseph M; Nakaji, Peter; Spetzler, Robert F

2012-09-01

Giant posterior communicating artery (PCoA) aneurysms (> 25 mm) are rare lesions associated with a poor prognosis and high rates of morbidity and mortality. To review the clinical results of giant PCoA aneurysms surgically treated at our institution, focusing on operative nuances. All cases of giant PCoA aneurysms treated surgically at our institution were identified from a prospectively maintained patient database. Patient demographic factors, medical comorbidities, rupture status, neurological presentation, clinical outcomes, and surgical records were critically reviewed. From 1989 to 2010, 11 patients (10 women) underwent surgical clipping of giant PCoA aneurysms. Presenting signs and symptoms included cranial nerve palsies, diminished mental status, headache, visual changes, and seizures. Five aneurysms were ruptured on admission. All aneurysms were clipped primarily except 1, which was treated by parent artery sacrifice and extracranial-to-intracranial bypass after intraoperative aneurysm rupture. Perioperative morbidity and mortality rates were 36% (4 of 11) and 18.3% (2 of 11), respectively. Excellent or good clinical outcomes, defined as modified Rankin Scale scores ≤ 2, were achieved in 86% (5 of 6) of patients available for long-term clinical follow-up (mean, 12.5 ± 13.6 months). Giant PCoA aneurysms are rare vascular lesions that may present with a variety of neurological signs and symptoms. These lesions can be successfully managed surgically with satisfactory morbidity and mortality rates. To the best of our knowledge, this is the largest surgical series of giant PCoA aneurysms published to date.

Percutaneous drainage of colonic diverticular abscess: is colon resection necessary?

Science.gov (United States)

Gaertner, Wolfgang B; Willis, David J; Madoff, Robert D; Rothenberger, David A; Kwaan, Mary R; Belzer, George E; Melton, Genevieve B

2013-05-01

Recurrent diverticulitis has been reported in up to 30% to 40% of patients who recover from an episode of colonic diverticular abscess, so elective interval resection is traditionally recommended. The aim of this study was to review the outcomes of patients who underwent percutaneous drainage of colonic diverticular abscess without subsequent operative intervention. This was an observational study. This investigation was conducted at a tertiary care academic medical center and a single-hospital health system. Patients treated for symptomatic colonic diverticular abscess from 2002 through 2007 were included. The primary outcomes measured were complications, recurrence, and colectomy-free survival. Two hundred eighteen patients underwent percutaneous drainage of colonic diverticular abscesses. Thirty-two patients (15%) did not undergo subsequent colonic resection. Abscess location was pelvic (n = 9) and paracolic (n = 23), the mean abscess size was 4.2 cm, and the median duration of percutaneous drainage was 20 days. The comorbidities of this group of patients included severe cardiac disease (n = 16), immunodeficiency (n = 7), and severe pulmonary disease (n = 6). Freedom from recurrence at 7.4 years was 0.58 (95% CI 0.42-0.73). All recurrences were managed nonoperatively. Recurrence was significantly associated with an abscess size larger than 5 cm. Colectomy-free survival at 7.4 years was 0.17 (95% CI 0.13-0.21). This study was limited by its retrospective, nonexperimental design and short follow-up. In selected patients, observation after percutaneous drainage of colonic diverticular abscess appears to be a safe and low-risk management option.

Think big--giant genes in bacteria.

Science.gov (United States)

Reva, Oleg; Tümmler, Burkhard

2008-03-01

Long genes should be rare in archaea and eubacteria because of the demanding costs of time and resources for protein production. The search in 580 sequenced prokaryotic genomes, however, revealed 0.2% of all genes to be longer than 5 kb (absolute number: 3732 genes). Eighty giant bacterial genes of more than 20 kb in length were identified in 47 taxa that belong to the phyla Thermotogae (1), Chlorobi (3), Planctomycetes (1), Cyanobacteria (2), Firmicutes (7), Actinobacteria (9), Proteobacteria (23) or Euryarchaeota (1) (number of taxa in brackets). Giant genes are strain-specific, differ in their tetranucleotide usage from the bulk genome and occur preferentially in non-pathogenic environmental bacteria. The two longest bacterial genes known to date were detected in the green sulfur bacterium Chlorobium chlorochromatii CaD3 encoding proteins of 36 806 and 20 647 amino acids, being surpassed in length only by the human titin coding sequence. More than 90% of bacterial giant genes either encode a surface protein or a polyketide/non-ribosomal peptide synthetase. Most surface proteins are acidic, threonine-rich, lack cystein and harbour multiple amino acid repeats. Giant proteins increase bacterial fitness by the production of either weapons towards or shields against animate competitors or hostile environments.

Giant viruses of amoebas: an update

Directory of Open Access Journals (Sweden)

Sarah eAherfi

2016-03-01

Full Text Available During the 12 past years, five new or putative virus families encompassing several members, namely Mimiviridae, Marseilleviridae, pandoraviruses, faustoviruses, and virophages were described. In addition, Pithovirus sibericum and Mollivirus sibericum represent type strains of putative new giant virus families. All these viruses were isolated using amoebal coculture methods. These giant viruses were linked by phylogenomic analyses to other large DNA viruses. They were then proposed to be classified in a new viral order, the Megavirales, on the basis of their common origin, as shown by a set of ancestral genes encoding key viral functions, a common virion architecture, and shared major biological features including replication inside cytoplasmic factories. Megavirales is increasingly demonstrated to stand in the tree of life aside Bacteria, Archaea and Eukarya, and the megavirus ancestor is suspected to be as ancient as cellular ancestors. In addition, giant amoebal viruses are visible under a light microscope and display many phenotypic and genomic features not found in other viruses, while they share other characteristics with parasitic microbes. Moreoever, these organisms appear to be common inhabitants of our biosphere, and mimiviruses and marseilleviruses were isolated from human samples and associated to diseases. In the present review, we describe the main features and recent findings on these giant amoebal viruses and virophages.

Spatial Memory in Captive Giant Anteaters (Myrmecophaga tridactyla

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Stephanie M. Allard

2014-08-01

Full Text Available The type of learning exhibited during foraging has been studied in a large number of species. Species that feed on food sources that temporally vary in quality could be well suited for exhibiting evidence of spatial learning. The foraging strategies of captive giant anteaters were examined using an experimental foraging task. Two giant anteaters were exposed to a modified radial arm maze in order to determine whether or not they would demonstrate evidence of spatial learning. Both subjects demonstrated significant improvement in performance by visiting baited feeders more consistently across learning trials. A disruption in performance occurred when the task was reversed, indicating that giant anteaters may use spatial learning to locate food sources. Obtaining a more sound understanding of the cognitive abilities of giant anteaters may help to enhance their welfare in captive settings.

Laparoscopic colectomy for transverse colon carcinoma.

Science.gov (United States)

Zmora, O; Bar-Dayan, A; Khaikin, M; Lebeydev, A; Shabtai, M; Ayalon, A; Rosin, D

2010-03-01

Laparoscopic resection of transverse colon carcinoma is technically demanding and was excluded from most of the large trials of laparoscopic colectomy. The aim of this study was to assess the safety, feasibility, and outcome of laparoscopic resection of carcinoma of the transverse colon. A retrospective review was performed to identify patients who underwent laparoscopic resection of transverse colon carcinoma. These patients were compared to patients who had laparoscopic resection for right and sigmoid colon carcinoma. In addition, they were compared to a historical series of patients who underwent open resection for transverse colon cancer. A total of 22 patients underwent laparoscopic resection for transverse colon carcinoma. Sixty-eight patients operated for right colon cancer and 64 operated for sigmoid colon cancer served as comparison groups. Twenty-four patients were identified for the historical open group. Intraoperative complications occurred in 4.5% of patients with transverse colon cancer compared to 5.9% (P = 1.0) and 7.8% (P = 1.0) of patients with right and sigmoid colon cancer, respectively. The early postoperative complication rate was 45, 50 (P = 1.0), and 37.5% (P = 0.22) in the three groups, respectively. Conversion was required in 1 (5%) patient in the laparoscopic transverse colon group. The conversion rate and late complications were not significantly different in the three groups. There was no significant difference in the number of lymph nodes harvested in the laparoscopic and open groups. Operative time was significantly longer in the laparoscopic transverse colectomy group when compared to all other groups (P = 0.001, 0.008, and transverse colectomy, respectively). The results of laparoscopic colon resection for transverse colon carcinoma are comparable to the results of laparoscopic resection of right or sigmoid colon cancer and open resection of transverse colon carcinoma. These results suggest that laparoscopic resection of transverse

Colon and rectal cancer survival by tumor location and microsatellite instability: the Colon Cancer Family Registry.

Science.gov (United States)

Phipps, Amanda I; Lindor, Noralane M; Jenkins, Mark A; Baron, John A; Win, Aung Ko; Gallinger, Steven; Gryfe, Robert; Newcomb, Polly A

2013-08-01

Cancers in the proximal colon, distal colon, and rectum are frequently studied together; however, there are biological differences in cancers across these sites, particularly in the prevalence of microsatellite instability. We assessed the differences in survival by colon or rectal cancer site, considering the contribution of microsatellite instability to such differences. This is a population-based prospective cohort study for cancer survival. This study was conducted within the Colon Cancer Family Registry, an international consortium. Participants were identified from population-based cancer registries in the United States, Canada, and Australia. Information on tumor site, microsatellite instability, and survival after diagnosis was available for 3284 men and women diagnosed with incident invasive colon or rectal cancer between 1997 and 2002, with ages at diagnosis ranging from 18 to 74. Cox regression was used to calculate hazard ratios for the association between all-cause mortality and tumor location, overall and by microsatellite instability status. Distal colon (HR, 0.59; 95% CI, 0.49-0.71) and rectal cancers (HR, 0.68; 95% CI, 0.57-0.81) were associated with lower mortality than proximal colon cancer overall. Compared specifically with patients with proximal colon cancer exhibiting no/low microsatellite instability, patients with distal colon and rectal cancers experienced lower mortality, regardless of microsatellite instability status; patients with proximal colon cancer exhibiting high microsatellite instability had the lowest mortality. Study limitations include the absence of stage at diagnosis and cause-of-death information for all but a subset of study participants. Some patient groups defined jointly by tumor site and microsatellite instability status are subject to small numbers. Proximal colon cancer survival differs from survival for distal colon and rectal cancer in a manner apparently dependent on microsatellite instability status. These

Hepatic Giant Cell Arteritis and Polymyalgia Rheumatica

Directory of Open Access Journals (Sweden)

Donald R Duerksen

1994-01-01

Full Text Available Polymyalgia rheumatica (PMR is a clinical syndrome of the elderly characterized by malaise, proximal muscle aching and stiffness, low grade fever, elevated erythrocyte sedimentation rare and the frequent association with temporal giant cell arteritis. The authors describe a case of PMR associated with hepatic giant cell arteritis. This lesion has been described in two other clinical reports. The distribution of the arteritis may be patchy; in this report, diagnosis was made with a wedge biopsy performed after an initial nonspecific percutaneous liver biopsy. The authors review the spectrum of liver involvement in PMR and giant cell arteritis. Hepatic abnormalities respond to systemic corticosteroids, and patients with hepatic arteritis have a good prognosis.

Giant Interfrontal Encephalocele in an Infant: A Rare Entity.

Science.gov (United States)

Faheem, Mohd; Singh, Sunil Kumar; Ojha, Bal Krishna; Chandra, Anil; Srivastava, Chhitij; Jaiswal, Manish; Zeeshan, Qazi

2016-01-01

Interfrontal encephalocele is one of the rare varieties of anterior encephalocele, and a giant interfrontal encephalocele is extremely rare. The authors could find only one case report of giant interfrontal encephalocele in the literature. Anterior encephaloceles are more prevalent in South-East Asia and some northern parts of India. Giant encephalocele poses a great challenge to neurosurgeons and neuroanesthetists during surgery, as these infants usually have a low birth weight and a large sac, thus making the infant prone to hypothermia and blood loss among other risks. We encountered a patient with a giant interfrontal encephalocele aged 1 month. The rarity of this case prompted us to this report. © 2016 S. Karger AG, Basel.

Spectral Flattening at Low Frequencies in Crab Giant Pulses

Science.gov (United States)

Meyers, B. W.; Tremblay, S. E.; Bhat, N. D. R.; Shannon, R. M.; Kirsten, F.; Sokolowski, M.; Tingay, S. J.; Oronsaye, S. I.; Ord, S. M.

2017-12-01

We report on simultaneous wideband observations of Crab giant pulses with the Parkes radio telescope and the Murchison Widefield Array (MWA). The observations were conducted simultaneously at 732 and 3100 MHz with Parkes and at 120.96, 165.76, and 210.56 MHz with the MWA. Flux density calibration of the MWA data was accomplished using a novel technique based on tied-array beam simulations. We detected between 90 and 648 giant pulses in the 120.96-210.56 MHz MWA subbands above a 5.5σ threshold, while in the Parkes subbands we detected 6344 and 231 giant pulses above a threshold of 6σ at 732 and 3100 MHz, respectively. We show, for the first time over a wide frequency range, that the average spectrum of Crab giant pulses exhibits a significant flattening at low frequencies. The spectral index, α, for giant pulses evolves from a steep, narrow distribution with a mean α =-2.6 and width {σ }α =0.5 between 732 and 3100 MHz to a wide, flat distribution of spectral indices with a mean α =-0.7 and width {σ }α =1.4 between 120.96 and 165.76 MHz. We also comment on the plausibility of giant pulse models for fast radio bursts based on this spectral information.

Semimicroscopic description of the giant quadrupole resonances in deformed nuclei

International Nuclear Information System (INIS)

Kurchev, G.; Malov, L.A.; Nesterenko, V.O.; Soloviev, V.G.

1976-01-01

The calculation results of the giant quadrupole isoscalar and isovector resonances performed within the random phase approximation are represented. The strength functions for E2-transitions are calculated for doubly even deformed nuclei in the regions 150 (<=) A < 190 and 228 (<=) A < 248 in the energy interval (0-40) MeV. The following integral characteristics of giant quadrupole resonances are obtained: the position, widths, the contribution to the energy weighted sum rule and the contribution to the total cross section of photoabsorption. The calculations have shown that giant quadrupole resonances are common for all the considered nuclei. The calculated characteristics of the isoscalar giant quadrupole resonance agree with the available experimental data. The calculations also show that the semimicroscopic theory can be successfully applied for the description of giant multipole resonances

Management of giant paraesophageal hernia.

Science.gov (United States)

Awais, O; Luketich, J D

2009-04-01

Management of giant paraesophageal hernia remains one of the most difficult challenges faced by surgeons treating complex benign esophageal disorders. These large hernias are acquired disorders; therefore, they invariably present in elderly patients. The dilemma that surgeons faced in the open surgical era was the risk of open surgery in this elderly, sick patient population versus the life threatening catastrophic complications, nearly 30% in some series, observed with medical management. During the 1990s, it was clearly recognized that laparoscopic surgery led to decreased morbidity with a quicker recovery. This has lead to a 6-fold increase in the surgical management of giant paraesophageal hernias over the last decade compared to a period of five decades of open surgery; however, this has not necessarily translated into better outcomes. One of the major issues with giant paraesophageal hernias is recognizing short esophagus and performing a lengthening procedure, if needed. Open series which report liberal use of Collis gastroplasty leading to a tension-free intraabdominal fundoplication have shown the best anatomic and clinical outcomes. As we duplicate the open experience laparoscopically, the principle of identifying a shortened esophagus and constructing a neo-esophagus must be honored for the success of the operation. The benefits of laparoscopy are obvious but should not come at the cost of a lesser operation. This review will illustrate that laparoscopic repair of giant paraesophageal hernia at experienced centers can be performed safely with similar outcomes to open series when the fundamental principles of the operation are maintained.

An Act of Colonization

DEFF Research Database (Denmark)

Rasmussen, Anders Bo

When Gideon Welles, U.S. Secretary of the Navy, sat down to write his diary entry on September 26, 1862, his thoughts turned once more to colonization. President Lincoln was an ardent proponent of colonization, “the government-promoted settlement of black Americans in Africa or some other location....... Croix. Thus, when the Lincoln administration seriously considered colonization plans in 1862, Danish Charge d’Affaires Waldemar Raasløff offered free transport for freedmen to the Caribbean island, where there was a “distinct lack of laborers.” As a small first step towards colonization, Denmark...

The minimum area requirements (MAR) for giant panda: an empirical study.

Science.gov (United States)

Qing, Jing; Yang, Zhisong; He, Ke; Zhang, Zejun; Gu, Xiaodong; Yang, Xuyu; Zhang, Wen; Yang, Biao; Qi, Dunwu; Dai, Qiang

2016-12-08

Habitat fragmentation can reduce population viability, especially for area-sensitive species. The Minimum Area Requirements (MAR) of a population is the area required for the population's long-term persistence. In this study, the response of occupancy probability of giant pandas against habitat patch size was studied in five of the six mountain ranges inhabited by giant panda, which cover over 78% of the global distribution of giant panda habitat. The probability of giant panda occurrence was positively associated with habitat patch area, and the observed increase in occupancy probability with patch size was higher than that due to passive sampling alone. These results suggest that the giant panda is an area-sensitive species. The MAR for giant panda was estimated to be 114.7 km 2 based on analysis of its occupancy probability. Giant panda habitats appear more fragmented in the three southern mountain ranges, while they are large and more continuous in the other two. Establishing corridors among habitat patches can mitigate habitat fragmentation, but expanding habitat patch sizes is necessary in mountain ranges where fragmentation is most intensive.

MALToma of the Transverse colon, Ascending colon and Caecum: A ...

African Journals Online (AJOL)

TNHJOURNALPH

RESULT. We herein report a case of a 40-year-old male with mucosa - associated lymphoid tissue. [MALT] lymphoma of the transverse colon, ascending colon and caecum. He presented with severe abdominal pains and a centrally located huge abdominal mass for which a surgical resection was done. Histologically.

Giant first-forbidden resonances

International Nuclear Information System (INIS)

Krmpotic, F.; Nakayama, K.; Sao Paulo Univ.; Pio Galeao, A.; Sao Paulo Univ.

1983-01-01

Recent experimental data on first-forbidden charge-exchange resonances are discussed in the framework of a schematic model. We also evaluate the screening of the weak coupling constants induced by both the giant resonances and the δ-isobar. It is shown that the last effect does not depend on the multipolarity of the one-particle moment. Due to the same reason, the fraction of the reaction strength pushed up into the δ-resonance region is always the same regardless of the quantum numbers carried by the excitation. Simple expressions are derived for the dependence of the excitation energies of the first-forbidden giant resonances on the mass number and isospin of the target. The model reproduces consistently both the Gamow-Teller and the first-forbidden resonances. (orig.)

Giant resonances: reaction theory approach

International Nuclear Information System (INIS)

Toledo Piza, A.F.R. de; Foglia, G.A.

1989-09-01

The study of giant resonances through the use of reaction theory approach is presented and discussed. Measurements of cross-sections to the many available decay channels following excitation of giant multipole resonances (GMR) led one to view these phenomena as complicated dynamical syndromes so that theoretical requirements for their study must be extended beyond the traditional bounds of nuclear structure models. The spectra of decay products following GMR excitation in heavy nuclei are well described by statistical model (Hauser-Feshback, HF) predictions indicated that spreading of the collective modes plays a major role in shaping exclusive cross-sections. (A.C.A.S.) [pt

Migration of accreting giant planets

Science.gov (United States)

Robert, C.; Crida, A.; Lega, E.; Méheut, H.

2017-09-01

Giant planets forming in protoplanetary disks migrate relative to their host star. By repelling the gas in their vicinity, they form gaps in the disk's structure. If they are effectively locked in their gap, it follows that their migration rate is governed by the accretion of the disk itself onto the star, in a so-called type II fashion. Recent results showed however that a locking mechanism was still lacking, and was required to understand how giant planets may survive their disk. We propose that planetary accretion may play this part, and help reach this slow migration regime.

Generation of an inducible colon-specific Cre enzyme mouse line for colon cancer research

NARCIS (Netherlands)

Tetteh, Paul W.; Kretzschmar, Kai; Begthel, Harry; Van Den Born, Maaike; Korving, Jeroen; Morsink, Folkert; Farin, Henner; Van Es, Johan H.; Offerhaus, G. Johan A; Clevers, Hans

2016-01-01

Current mouse models for colorectal cancer often differ significantly from human colon cancer, being largely restricted to the small intestine. Here, we aim to develop a colon-specific inducible mouse model that can faithfully recapitulate human colon cancer initiation and progression. Carbonic

Evolving colon injury management: a review.

Science.gov (United States)

Greer, Lauren T; Gillern, Suzanne M; Vertrees, Amy E

2013-02-01

The colon is the second most commonly injured intra-abdominal organ in penetrating trauma. Management of traumatic colon injuries has evolved significantly over the past 200 years. Traumatic colon injuries can have a wide spectrum of severity, presentation, and management options. There is strong evidence that most non-destructive colon injuries can be successfully managed with primary repair or primary anastomosis. The management of destructive colon injuries remains controversial with most favoring resection with primary anastomosis and others favor colonic diversion in specific circumstances. The historical management of traumatic colon injuries, common mechanisms of injury, demographics, presentation, assessment, diagnosis, management, and complications of traumatic colon injuries both in civilian and military practice are reviewed. The damage control revolution has added another layer of complexity to management with continued controversy.

What is the role of giant cells in AL-amyloidosis?

DEFF Research Database (Denmark)

Olsen, K E; Sletten, K; Sandgren, O

1999-01-01

of some cases of systemic AL-amyloidosis. Based on these findings and electron microscopic studies, it is discussed whether the giant cells actively participate in amyloid fibril formation by uptake and modification of the precursor protein or the giant cells are part of a foreign body reaction. Included....... In this work it is shown that that there is a difference between localized and systemic amyloidosis in respect to accompanying giant cells which constantly are found associated with amyloid deposits in localized AL-amyloidosis. In addition, giant cells were found together with amyloid deposits in lymph nodes...

Juvenile giant fibroadenoma

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Vipul Yagnik

2011-07-01

Full Text Available Fibroadenomas are benign solid tumor associated with aberration of normal lobular development. Juvenile giant fibroadenoma is usually single and >5 cm in size /or >500 gms in weight. Important differential diagnoses are: phyllodes tumor and juvenile gigantomastia. Simple excision is the treatment of choice.

Spin isovector giant resonances in (n,p) reactions

International Nuclear Information System (INIS)

Spicer, B.M.

1997-01-01

The present status of the study of spin-flip isovector giant resonances, using the (n,p) charge exchange reaction, is reviewed. After a brief history of the discovery of these giant resonances, a critical appraisal of the interpretation of the data in terms of giant resonances is given, along with some of the theoretical advances that impact on the interpretation of these data. A sampling of the results obtained for typical targets is given, followed by the interpretation of these results. A brief statement is made concerning the way forward in experimental technique for nuclear structure research using charge exchange reactions

Giant Planets Can Act as Stabilizing Agents on Debris Disks

Energy Technology Data Exchange (ETDEWEB)

Muñoz-Gutiérrez, M. A.; Pichardo, B.; Peimbert, A., E-mail: mmunoz.astro@gmail.com [Instituto de Astronomía, Universidad Nacional Autónoma de México, Apdo. postal 70-264 Ciudad Universitaria, México (Mexico)

2017-07-01

We have explored the evolution of a cold debris disk under the gravitational influence of dwarf-planet-sized objects (DPs), both in the presence and absence of an interior giant planet. Through detailed long-term numerical simulations, we demonstrate that when the giant planet is not present, DPs can stir the eccentricities and inclinations of disk particles, in linear proportion to the total mass of the DPs; on the other hand, when the giant planet is included in the simulations, the stirring is approximately proportional to the mass squared. This creates two regimes: below a disk mass threshold (defined by the total mass of DPs), the giant planet acts as a stabilizing agent of the orbits of cometary nuclei, diminishing the effect of the scatterers; above the threshold, the giant contributes to the dispersion of the particles.

TRAP-Positive Multinucleated Giant Cells Are Foreign Body Giant Cells Rather Than Osteoclasts: Results From a Split-Mouth Study in Humans.

Science.gov (United States)

Lorenz, Jonas; Kubesch, Alica; Korzinskas, Tadas; Barbeck, Mike; Landes, Constantin; Sader, Robert A; Kirkpatrick, Charles J; Ghanaati, Shahram

2015-12-01

This study compared the material-specific tissue response to the synthetic, hydroxyapatite-based bone substitute material NanoBone (NB) with that of the xenogeneic, bovine-based bone substitute material Bio-Oss (BO). The sinus cavities of 14 human patients were augmented with NB and BO in a split-mouth design. Six months after augmentation, bone biopsies were extracted for histological and histomorphometric investigation prior to dental implant insertion. The following were evaluated: the cellular inflammatory pattern, the induction of multinucleated giant cells, vascularization, the relative amounts of newly formed bone, connective tissue, and the remaining bone substitute material. NB granules were well integrated in the peri-implant tissue and were surrounded by newly formed bone tissue. Multinucleated giant cells were visible on the surfaces of the remaining granules. BO granules were integrated into the newly formed bone tissue, which originated from active osteoblasts on their surface. Histomorphometric analysis showed a significantly higher number of multinucleated giant cells and blood vessels in the NB group compared to the BO group. No statistical differences were observed in regard to connective tissue, remaining bone substitute, and newly formed bone. The results of this study highlight the different cellular reactions to synthetic and xenogeneic bone substitute materials. The significantly higher number of multinucleated giant cells within the NB implantation bed seems to have no effect on its biodegradation. Accordingly, the multinucleated giant cells observed within the NB implantation bed have characteristics more similar to those of foreign body giant cells than to those of osteoclasts.

Provirophages and transpovirons as the diverse mobilome of giant viruses.

Science.gov (United States)

Desnues, Christelle; La Scola, Bernard; Yutin, Natalya; Fournous, Ghislain; Robert, Catherine; Azza, Saïd; Jardot, Priscilla; Monteil, Sonia; Campocasso, Angélique; Koonin, Eugene V; Raoult, Didier

2012-10-30

A distinct class of infectious agents, the virophages that infect giant viruses of the Mimiviridae family, has been recently described. Here we report the simultaneous discovery of a giant virus of Acanthamoeba polyphaga (Lentille virus) that contains an integrated genome of a virophage (Sputnik 2), and a member of a previously unknown class of mobile genetic elements, the transpovirons. The transpovirons are linear DNA elements of ~7 kb that encompass six to eight protein-coding genes, two of which are homologous to virophage genes. Fluorescence in situ hybridization showed that the free form of the transpoviron replicates within the giant virus factory and accumulates in high copy numbers inside giant virus particles, Sputnik 2 particles, and amoeba cytoplasm. Analysis of deep-sequencing data showed that the virophage and the transpoviron can integrate in nearly any place in the chromosome of the giant virus host and that, although less frequently, the transpoviron can also be linked to the virophage chromosome. In addition, integrated fragments of transpoviron DNA were detected in several giant virus and Sputnik genomes. Analysis of 19 Mimivirus strains revealed three distinct transpovirons associated with three subgroups of Mimiviruses. The virophage, the transpoviron, and the previously identified self-splicing introns and inteins constitute the complex, interconnected mobilome of the giant viruses and are likely to substantially contribute to interviral gene transfer.

Infection and Proliferation of Giant Viruses in Amoeba Cells.

Science.gov (United States)

Takemura, Masaharu

2016-01-01

Acanthamoeba polyphaga mimivirus, the first discovered giant virus with genome size and particle size much larger than previously discovered viruses, possesses several genes for translation and CRISPER Cas system-like defense mechanism against virophages, which co-infect amoeba cells with the giant virus and which inhibit giant virus proliferation. Mimiviruses infect amoeba cells by phagocytosis and release their DNA into amoeba cytoplasm through their stargate structure. After infection, giant virion factories (VFs) form in amoeba cytoplasm, followed by DNA replication and particle formation at peripheral regions of VF. Marseilleviruses, the smallest giant viruses, infect amoeba cells by phagocytosis or endocytosis, form larger VF than Mimivirus's VF in amoeba cytoplasm, and replicate their particles. Pandoraviruses found in 2013 have the largest genome size and particle size among all viruses ever found. Pandoraviruses infect amoeba cells by phagocytosis and release their DNA into amoeba cytoplasm through their mouth-like apical pores. The proliferation of Pandoraviruses occurs along with nucleus disruption. New virions form at the periphery of the region formerly occupied by the amoeba cell nucleus.

Diffuse-type giant cell tumor of the subcutaneous thigh

International Nuclear Information System (INIS)

Sanghvi, D.A.; Purandare, N.C.; Jambhekar, N.A.; Agarwal, A.; Agarwal, M.G.

2007-01-01

Diffuse-type giant cell tumor is an extra-articular form of pigmented villonodular synovitis. The localized form of this lesion (tenosynovial giant cell tumor) is frequent, representing the most common subset arising from the synovium of a joint, bursa or tendon sheath, with 85% of cases occurring in the fingers. The less frequent diffuse-type giant cell tumors are commonly located in the periarticular soft tissues, but on rare occasions these lesions can be purely intramuscular or subcutaneous We report the case of a 26-year-old female with diffuse-type giant cell tumor of the subcutaneous thigh, remote from a joint, bursa or tendon sheath. A review of the literature did not reveal any similar description of a diffuse-type giant cell tumor completely within the subcutaneous thigh, remote from a joint, bursa or tendon sheath. These lesions were initially regarded as inflammatory or reactive processes, but since the identification of clonal abnormalities in these patients, and in view of their capacity for autonomous growth, they are now widely considered to represent benign neoplasms. (orig.)

in Chinese giant salamander ( Andrias davidianus , Blanchard, 1871)

African Journals Online (AJOL)

A disease in farmed Chinese giant salamander (Andrias davidianus) was a common event, being an economically important threat for Chinese farms. Based on the clinical signs, epizootiology and pathogens belonging to the genus, Ranavirus was suspected as the possible etiology. Although in a cultured Chinese giant ...

Giant aneurysm in a left coronary artery fistula

DEFF Research Database (Denmark)

Frestad, Daria; Helqvist, Steffen; Helvind, Morten

2013-01-01

Congenital coronary artery fistula complicated with giant coronary artery aneurysm is a very rare condition. In this case report, we present a 65-year-old woman, referred to us with a continuous heart murmur, occasional atypical chest pain and few episodes of fainting. A giant aneurysm...

Probing giant magnetoresistance with THz spectroscopy

DEFF Research Database (Denmark)

Jin, Zuanming; Tkach, Alexander; Casper, Frederick

2014-01-01

We observe a giant magnetoresistance effect in CoFe/Cu-based multistack using THz time-domain spectroscopy. The magnetic field-dependent dc conductivity, electron scattering time, as well as spin-asymmetry parameter of the structure are successfully determined. © 2014 OSA.......We observe a giant magnetoresistance effect in CoFe/Cu-based multistack using THz time-domain spectroscopy. The magnetic field-dependent dc conductivity, electron scattering time, as well as spin-asymmetry parameter of the structure are successfully determined. © 2014 OSA....

Giant Condyloma Acuminatum: A Surgical Riddle

Directory of Open Access Journals (Sweden)

Shukla

2016-08-01

Full Text Available Giant condyloma acuminatum (GCA commonly known as Buschke-Lowenstein tumor (BLT is a rare sexually transmitted disease, which is always preceded by condyloma accuminata and linked to human papillomavirus (HPV. Most commonly affected sites are male and female genitalia, anal and perianal regions. Giant condyloma acuminatum is well-known as slow growing but locally destructive with a high rate of recurrence and increased frequency of malignant transformation. Surgical management is considered to be the best among all the options.

Overtones of isoscalar giant resonances studied in direct particle decay measurements

NARCIS (Netherlands)

Hunyadi, M; van den Berg, AM; Csatlos, M; Csige, L; Davids, B; Garg, U; Gulyas, J; Harakeh, MN; de Huu, MA; Krasznahorkay, A; Sohler, D; Wortche, HJ

The isoscalar giant dipole resonance (ISGDR), which is the lowest-energy overtone mode of the isoscalar giant resonances, has been studied in some medium-heavy and heavy nuclei in coincidence measurements. The observation of the direct nucleon decay channels significantly helped to enhance giant

Asteroseismic Diagram for Subgiants and Red Giants

Energy Technology Data Exchange (ETDEWEB)

Gai, Ning; Tang, Yanke [College of Physics and Electronic information, Dezhou University, Dezhou 253023 (China); Yu, Peng [College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 401331 (China); Dou, Xianghua, E-mail: ning_gai@163.com, E-mail: tyk450@163.com [Shandong Provincial Key Laboratory of Biophysics, Dezhou University, Dezhou 253023 (China)

2017-02-10

Asteroseismology is a powerful tool for constraining stellar parameters. NASA’s Kepler mission is providing individual eigenfrequencies for a huge number of stars, including thousands of red giants. Besides the frequencies of acoustic modes, an important breakthrough of the Kepler mission is the detection of nonradial gravity-dominated mixed-mode oscillations in red giants. Unlike pure acoustic modes, mixed modes probe deeply into the interior of stars, allowing the stellar core properties and evolution of stars to be derived. In this work, using the gravity-mode period spacing and the large frequency separation, we construct the ΔΠ{sub 1}–Δ ν asteroseismic diagram from models of subgiants and red giants with various masses and metallicities. The relationship ΔΠ{sub 1}–Δ ν is able to constrain the ages and masses of the subgiants. Meanwhile, for red giants with masses above 1.5 M {sub ⊙}, the ΔΠ{sub 1}–Δ ν asteroseismic diagram can also work well to constrain the stellar age and mass. Additionally, we calculate the relative “isochrones” τ , which indicate similar evolution states especially for similar mass stars, on the ΔΠ{sub 1}–Δ ν diagram.

Carotenoids and colon cancer.

Science.gov (United States)

Slattery, M L; Benson, J; Curtin, K; Ma, K N; Schaeffer, D; Potter, J D

2000-02-01

Carotenoids have numerous biological properties that may underpin a role for them as chemopreventive agents. However, except for beta-carotene, little is known about how dietary carotenoids are associated with common cancers, including colon cancer. The objective of this study was to evaluate associations between dietary alpha-carotene, beta-carotene, lycopene, lutein, zeaxanthin, and beta-cryptoxanthin and the risk of colon cancer. Data were collected from 1993 case subjects with first primary incident adenocarcinoma of the colon and from 2410 population-based control subjects. Dietary data were collected from a detailed diet-history questionnaire and nutrient values for dietary carotenoids were obtained from the US Department of Agriculture-Nutrition Coordinating Center carotenoid database (1998 updated version). Lutein was inversely associated with colon cancer in both men and women [odds ratio (OR) for upper quintile of intake relative to lowest quintile of intake: 0.83; 95% CI: 0.66, 1.04; P = 0.04 for linear trend]. The greatest inverse association was observed among subjects in whom colon cancer was diagnosed when they were young (OR: 0.66; 95% CI: 0.48, 0.92; P = 0.02 for linear trend) and among those with tumors located in the proximal segment of the colon (OR: 0.65; 95% CI: 0.51, 0.91; P lettuce, tomatoes, oranges and orange juice, carrots, celery, and greens. These data suggest that incorporating these foods into the diet may help reduce the risk of developing colon cancer.

[Treatment of giant acoustic neuromas].

Science.gov (United States)

Samprón, Nicolás; Altuna, Xabier; Armendáriz, Mikel; Urculo, Enrique

2014-01-01

To analyze the treatment modality and outcome of a series of patients with giant acoustic neuromas, a particular type of tumour characterised by their size (extracanalicular diameter of 4cm or more) and high morbidity and mortality. This was a retrospective unicentre study of patients with acoustic neuromas treated in a period of 12 years. In our institutional series of 108 acoustic neuromas operated on during that period, we found 13 (12%) cases of giant acoustic neuromas. We reviewed the available data of these cases, including presentation and several clinical, anatomical, and microsurgical aspects. All patients were operated on by the same neurosurgeon and senior author (EU) using the suboccipital retrosigmoid approach and complete microsurgical removal was achieved in 10 cases. In one case, near total removal was deliberately performed, in another case a CSF shunt was placed as the sole treatment measure, and in the remaining case no direct treatment was given. One patient died in the immediate postoperative period. One year after surgery, 4 patients showed facial nerve function of iii or more in the House-Brackman scale. The 4 most important prognostic characteristics of giant acoustic neuromas are size, adhesion to surrounding structures, consistency and vascularity. Only the first of these is evident in neuroimaging. Giant acoustic neuromas are characterised by high morbidity at presentation as well as after treatment. Nevertheless, the objective of complete microsurgical removal with preservation of cranial nerve function is attainable in some cases through the suboccipital retrosigmoid approach. Copyright © 2014 Sociedad Española de Neurocirugía. Published by Elsevier España. All rights reserved.

Isoscalar giant resonances

Energy Technology Data Exchange (ETDEWEB)

Youngblood, D. H. [Texas A and M Univ., College Station (USA). Cyclotron Inst.; Ikegami, H.; Muraoka, M. [eds.

1980-01-01

The current status of the knowledges of giant quadrupole resonance (GQR), low energy octupole resonance (LEOR), and giant monopole resonance (GMR), is described. In the lowest order of multipole resonance, both isoscalar and isovector modes can occur. The characteristics of the GQR in light nuclei are apparent in the experimental result for Mg-24. All of the isoscalar E2 strength are known in Mg-24. The Goldhaber-Teller model is preferred over the Steinwedel-Jensen model for the giant dipole resonance (GDR) transition density. A few interesting and puzzling features have been seen in Pb-208. There is some conflict between inelastic alpha and electron scatterings. About LEOR, the RPA calculation of Liu and Brown was compared to the data for 3/sup -/ strength in Ca-40, Zr-90 and Pb-208. The calculation was employed the residual interaction of the Skyrme type. The agreement in Zr-90 was excellent. The effect of quadrupole deformation on the LEOR in Sm isotopes was large. The inelastic alpha scattering data on Al-27, Ca-40, Ti-48, Ni-58, Zn-64 and 66, Zr-90, Sn-116, 118, 120 and 124, Sm-144, 148 and 154, and Pb-208 were utilized in order to identify the GMR, and the GMR parameters were obtained. The GMR exhausting a large fraction of the sum rule was apparent in the nuclei with mass larger than 90. The splitting of the GDR and the broadening of the GQR in permanently deformed nuclei were established. The splitting of GMR was seen in Sm-154. The studies with heavy ions are also described.

Colon diversion versus primary colonic repair in gunshot abdomen with penetrating colon injury in Libyan revolution conflict 2011 (a single center experience).

Science.gov (United States)

Mansor, Salah; Bendardaf, Rashed; Bougrara, Muftah; Hagam, Mohamed

2014-09-01

The objective of this study is comparing colon diversion versus primary repair in penetrating colon gunshot injuries. A retrospective study of 63 cases of gunshot abdomen with penetrating colon injury were admitted to Al-jalla Hospital in 2011 in Benghazi, Libya. After surgical intervention, these patients were observed for any postoperative complications. During the study period, 63 eligible patients included, 62 (98.4%) were males and 1 (1.6%) was female. And the mean age was 29.24 years. Eighteen patients had an injury on the right side of the colon, while 16, 6, 11, 6, 2, 3, and 1 patients had an injury on the transverse, left, sigmoid, rectum, right transverse, left transverse, and total colonic injury, respectively. In the first group, 23 patients (36.5%) was treated with colon diversion, (2 with Hartmann's operation, 21 with loop colostomy). In the second group, 40 patients (63.4 %) was treated with primary repair. Eighteen (28.5%) with right hemicolectomy, 5 (7.9%) with transverse colon resection and anastomosis, and 17 (26.9%) with simple repair. We evaluate the rate of postoperative complication and compare the postoperative morbidity between both groups. In our study, there was no significant statistical difference between types of operations and rate of complications (P = 0.18). We could not see any advantage of the diversion over the primary repair. To reduce risk of the psychological trauma, complications of colostomy, unnecessary repeated hospitalization, decrease of economic cost, and complications of stoma revision operation, we should consider that the primary repair of penetrating colon injuries is an acceptable alternative method of treatment over the colostomy.

Resting site use of giant pandas in Wanglang Nature Reserve.

Science.gov (United States)

Kang, Dongwei; Wang, Xiaorong; Li, Junqing

2017-10-23

Little is known about the resting sites used by the giant panda (Ailuropoda melanoleuca), which restricts our understanding of their resting habits and limits conservation efforts. To enhance our understanding of resting site requirements and factors affecting the resting time of giant pandas, we investigated the characteristics of resting sites in the Wanglang Nature Reserve, Sichuan Province, China. The results indicated that the resting sites of giant pandas were characterised by a mean slope of 21°, mean nearest tree size of 53.75 cm, mean nearest shrub size of 2.82 cm, and mean nearest bamboo number of 56. We found that the resting sites were closer to bamboo than to trees and shrubs, suggesting that the resting site use of giant pandas is closely related to the presence of bamboo. Considering that giant pandas typically rest near a large-sized tree, protection of large trees in the forests is of considerable importance for the conservation of this species. Furthermore, slope was found to be an important factor affecting the resting time of giant pandas, as they tended to rest for a relatively longer time in sites with a smaller degree of slope.

Giant pediatric cervicofacial lymphatic malformations.

Science.gov (United States)

Benazzou, Salma; Boulaadas, Malik; Essakalli, Leila

2013-07-01

Lymphatic malformations (LMs) are benign lesions. Most of them are found in head and neck regions as asymptomatic mass, but giant lymphangiomas may affect breathing or swallowing and constitute a major therapeutic challenge. A retrospective analysis of giant head and neck LMs with impairment of respiration or swallow for the past 11 years was performed in the Department of Maxillofacial Surgery and ENT of the Avicenne Medical University Center. Seven patients with large and extensive LMs of the head and neck were identified. There were 3 males and 4 females with a mean age of 6 years. The predominant reason for referral was airway compromise necessitating tracheostomy (57%) and dysphagia (43%). Three patients had macrocystic lesions; others were considered mixed or microcystic. All the patients underwent surgical excision as a primary treatment modality. Complete surgical resection was realized in 4 patients, and subtotal resection in 3 patients. Of 7 patients, 4 patients had complications including nerve damage and recurrence of the disease. The majority of the patients underwent only a single surgical procedure. Cervicofacial LMs in children should be managed in multidisciplinary setting. Surgery remains the first treatment for managing giant, life-threatening lesions.

Percolation with multiple giant clusters

International Nuclear Information System (INIS)

Ben-Naim, E; Krapivsky, P L

2005-01-01

We study mean-field percolation with freezing. Specifically, we consider cluster formation via two competing processes: irreversible aggregation and freezing. We find that when the freezing rate exceeds a certain threshold, the percolation transition is suppressed. Below this threshold, the system undergoes a series of percolation transitions with multiple giant clusters ('gels') formed. Giant clusters are not self-averaging as their total number and their sizes fluctuate from realization to realization. The size distribution F k , of frozen clusters of size k, has a universal tail, F k ∼ k -3 . We propose freezing as a practical mechanism for controlling the gel size. (letter to the editor)

[Giant intradiploic infratentorial epidermoid cyst].

Science.gov (United States)

Alberione, F; Caire, F; Fischer-Lokou, D; Gueye, M; Moreau, J J

2007-10-01

Epidermoid cysts are benign, uncommon lesions (1% of all intracranial tumors). Their localization is intradiploic in 25% of cases, and exceptionally subtentorial. We report here a rare case of giant intradiploic infratentorial epidermoid cyst. A 74-year old patient presented with recent diplopia and sindrome cerebellar. CT scan and MR imaging revealed a giant osteolytic extradural lesion of the posterior fossa (5.2 cm x 3.8 cm) with a small area of peripheral enhancement after contrast injection. Retrosigmoid suboccipital craniectomy allowed a satisfactory removal of the tumor, followed by an acrylic cranioplasty. The outcome was good. Neuropathological examination confirmed an epidermoid cyst. We review the literature and discuss our case.

Giant Low Surface Brightness Galaxies

Science.gov (United States)

Mishra, Alka; Kantharia, Nimisha G.; Das, Mousumi

2018-04-01

In this paper, we present radio observations of the giant low surface brightness (LSB) galaxies made using the Giant Metrewave Radio Telescope (GMRT). LSB galaxies are generally large, dark matter dominated spirals that have low star formation efficiencies and large HI gas disks. Their properties suggest that they are less evolved compared to high surface brightness galaxies. We present GMRT emission maps of LSB galaxies with an optically-identified active nucleus. Using our radio data and archival near-infrared (2MASS) and near-ultraviolet (GALEX) data, we studied morphology and star formation efficiencies in these galaxies. All the galaxies show radio continuum emission mostly associated with the centre of the galaxy.

Lineage fusion in Galápagos giant tortoises.

Science.gov (United States)

Garrick, Ryan C; Benavides, Edgar; Russello, Michael A; Hyseni, Chaz; Edwards, Danielle L; Gibbs, James P; Tapia, Washington; Ciofi, Claudio; Caccone, Adalgisa

2014-11-01

Although many classic radiations on islands are thought to be the result of repeated lineage splitting, the role of past fusion is rarely known because during these events, purebreds are rapidly replaced by a swarm of admixed individuals. Here, we capture lineage fusion in action in a Galápagos giant tortoise species, Chelonoidis becki, from Wolf Volcano (Isabela Island). The long generation time of Galápagos tortoises and dense sampling (841 individuals) of genetic and demographic data were integral in detecting and characterizing this phenomenon. In C. becki, we identified two genetically distinct, morphologically cryptic lineages. Historical reconstructions show that they colonized Wolf Volcano from Santiago Island in two temporally separated events, the first estimated to have occurred ~199 000 years ago. Following arrival of the second wave of colonists, both lineages coexisted for approximately ~53 000 years. Within that time, they began fusing back together, as microsatellite data reveal widespread introgressive hybridization. Interestingly, greater mate selectivity seems to be exhibited by purebred females of one of the lineages. Forward-in-time simulations predict rapid extinction of the early arriving lineage. This study provides a rare example of reticulate evolution in action and underscores the power of population genetics for understanding the past, present and future consequences of evolutionary phenomena associated with lineage fusion. © 2014 John Wiley & Sons Ltd.

Lipase polystyrene giant amphiphiles.

Science.gov (United States)

Velonia, Kelly; Rowan, Alan E; Nolte, Roeland J M

2002-04-24

A new type of giant amphiphilic molecule has been synthesized by covalently connecting a lipase enzyme headgroup to a maleimide-functionalized polystyrene tail (40 repeat units). The resulting biohybrid forms catalytic micellar rods in water.

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.

Oxygen abundances in halo giants. I - Giants in the very metal-poor globular clusters M92 and M15 and the metal-poor halo field

Science.gov (United States)

Sneden, Christopher; Kraft, Robert P.; Prosser, Charles F.; Langer, G. E.

1991-12-01

Oxygen, iron, vanadium, and scandium abundances are derived for very metal-poor giants in the globular clusters M92 and M15, and giants of comparable metallicity in the local halo field. The forbidden O I line dublet (6300, 6363) and nearby metallic lines in spectra are analyzed using line analysis and spectral synthesis codes. The Fe/H abundance for M92 is estimated at -2.25 +/-0.02 based on nine giants with a range of 500 K in effective temperature. No evidence for star-to-star variations in the Fe/H abundance was found. O-rich and O-poor stars appear intermixed in the H-R diagram. O - N nuclear synthesis and mixing to the surface are proposed as the best explanation for the low-oxygen giants. The nitrogen abundances obtained earlier for nine of the ten halo field giants in this sample are incompatible with the very large nitrogen abundances expected of the O/Fe abundance of about + 1.2 in halo field subdwarfs, as found by Abia and Rebolo (1989), and not more than 0.6 in halo giants, as found in this and other studies.

Construction and analysis of a giant gartersnake (Thamnophis gigas) population projection model

Science.gov (United States)

Rose, Jonathan P.; Ersan, Julia S. M.; Wylie, Glenn D.; Casazza, Michael L.; Halstead, Brian J.

2018-03-19

The giant gartersnake (Thamnophis gigas) is a state and federally threatened species precinctive to California. The range of the giant gartersnake has contracted in the last century because its wetland habitat has been drained for agriculture and development. As a result of this habitat alteration, giant gartersnakes now largely persist in and near rice agriculture in the Sacramento Valley, because the system of canals that conveys water for rice growing approximates historical wetland habitat. Many aspects of the demography of giant gartersnakes are unknown, including how individuals grow throughout their life, how size influences reproduction, and how survival varies over time and among populations. We studied giant gartersnakes throughout the Sacramento Valley of California from 1995 to 2016 using capture-mark-recapture to study the growth, reproduction, and survival of this threatened species. We then use these data to construct an Integral Projection Model, and analyze this demographic model to understand which vital rates contribute most to the growth rate of giant gartersnake populations. We find that giant gartersnakes exhibit indeterminate growth; growth slows as individuals’ age. Fecundity, probability of reproduction, and survival all increase with size, although survival may decline for the largest female giant gartersnakes. The population growth rate of giant gartersnakes is most influenced by the survival and growth of large adult females, and the size at which 1 year old recruits enter the population. Our results indicate that management actions benefitting these influential demographic parameters will have the greatest positive effect on giant gartersnake population growth rates, and therefore population persistence. This study informs the conservation and management of giant gartersnakes and their habitat, and illustrates the effectiveness of hierarchical Bayesian models for the study of rare and elusive species.

Giant scrotal elephantiasis.

Science.gov (United States)

Kuepper, Daniel

2005-02-01

How much can a man carry? Penoscrotal elephantiasis is a debilitating syndrome. This is a case report of a patient with giant genital elephantiasis secondary to long-standing lymphogranuloma venereum infection in Ethiopia. Complete surgical resection of the pathologic tissue and penile reconstruction was undertaken with good cosmetic and functional results.

Pectin-based colon-specific drug delivery

OpenAIRE

Shailendra Shukla; Deepak Jain; Kavita Verma; Shiddarth Verma

2011-01-01

Colon-specific drug delivery have a great importance in the delivery of drugs for the treatment of local colonic, as well as systemic diseases like Crohn′s disease, ulcerative colitis, colorectal cancer, amoebiasis, asthma, arthritis and inflammation which can be achieved by targeted delivery of drug to colon. Specific systemic absorption in the colon gave interesting possibilities for the delivery of protein and peptides. It contains relatively less proteolytic enzyme activities in the colon...

Mismatch between the eye and the optic lobe in the giant squid.

Science.gov (United States)

Liu, Yung-Chieh; Liu, Tsung-Han; Yu, Chun-Chieh; Su, Chia-Hao; Chiao, Chuan-Chin

2017-07-01

Giant squids ( Architeuthis ) are a legendary species among the cephalopods. They live in the deep sea and are well known for their enormous body and giant eyes. It has been suggested that their giant eyes are not adapted for the detection of either mates or prey at distance, but rather are best suited for monitoring very large predators, such as sperm whales, at distances exceeding 120 m and at a depth below 600 m (Nilsson et al. 2012 Curr. Biol. 22 , 683-688. (doi:10.1016/j.cub.2012.02.031)). However, it is not clear how the brain of giant squids processes visual information. In this study, the optic lobe of a giant squid ( Architeuthis dux , male, mantle length 89 cm), which was caught by local fishermen off the northeastern coast of Taiwan, was scanned using high-resolution magnetic resonance imaging in order to examine its internal structure. It was evident that the volume ratio of the optic lobe to the eye in the giant squid is much smaller than that in the oval squid ( Sepioteuthis lessoniana ) and the cuttlefish ( Sepia pharaonis ). Furthermore, the cell density in the cortex of the optic lobe is significantly higher in the giant squid than in oval squids and cuttlefish, with the relative thickness of the cortex being much larger in Architeuthis optic lobe than in cuttlefish. This indicates that the relative size of the medulla of the optic lobe in the giant squid is disproportionally smaller compared with these two cephalopod species. This morphological study of the giant squid brain, though limited only to the optic lobe, provides the first evidence to support that the optic lobe cortex, the visual information processing area in cephalopods, is well developed in the giant squid. In comparison, the optic lobe medulla, the visuomotor integration centre in cephalopods, is much less developed in the giant squid than other species. This finding suggests that, despite the giant eye and a full-fledged cortex within the optic lobe, the brain of giant

Surgical treatment of an acquired posterior urethral diverticulum with cystoscopy assisted robotic technique.

Science.gov (United States)

Guneri, Cagri; Kirac, Mustafa; Biri, Hasan

2017-03-01

A 42-year-old man with a history of recurrent urethral stenosis, recurrent urinary tract infection and macroscopic hematuria has referred to our clinic. He underwent several internal urethrotomies and currently using clean intermittent self-catheterization. During the internal urethrotomy, we noted a large posterior urethral diverticulum (UD) between verumontanum and bladder neck. His obstructive symptoms were resolved after the catheter removal. But perineal discomfort, urgency and dysuria were prolonged about 3-4 weeks. Urinalysis and urine culture confirmed recurrent urinary tract infections. Due to this conditions and symptoms, we planned a surgical approach which was planned as transperitoneal robotic-assisted laparoscopic approach. This technique is still applied for the diverticulectomy of the bladder. In addition to this we utilized the cystoscopy equipments for assistance. During this process, cystoscope was placed in the UD to help the identification of UD from adjacent tissues like seminal vesicles by its movement and translumination. Operating time was 185 min. On the post-operative third day he was discharged. Foley catheter was removed after 2 weeks. Urination was quite satisfactory. His perineal discomfort was resolved. The pathology report confirmed epidermoid (tailgut) cyst of the prostate. Urethrogram showed no radiologic signs of UD after 4 weeks. Irritative and obstructive symptoms were completely resolved after 3 months. No urinary incontinence, erectile dysfunction or retrograde ejaculation was noted. While posterior UD is an extremely rare situation, surgical treatment of posterior UD remains uncertain. To our knowledge, no above-mentioned cystoscopy assisted robotic technique for the treatment was described in the literature.

Excitation and photon decay of giant resonances excited by intermediate energy heavy ions

International Nuclear Information System (INIS)

Bertrand, F.E.; Beene, J.R.

1987-01-01

Inelastic scattering of medium energy heavy ions provides very large cross sections and peak-to-continuum ratios for excitation of giant resonances. For energies above about 50 MeV/nucleon, giant resonances are excited primarily through Coulomb excitation, which is indifferent to isospin, thus providing a good probe for the study of isovector giant resonances. The extremely large cross sections available from heavy ion excitation permit the study of rare decay modes of the giant resonances. In particular, recent measurements have been made of the photon decay of giant resonances following excitation by 22 and 84 MeV/nucleon 17 O projectiles. The singles results at 84 MeV/nucleon yield peak cross sections for the isoscalar giant quadrupole resonance and the isovector giant dipole resonance of approximately 0.8 and 3 barns/sr, respectively. Data on the ground state decay of the isoscalar giant quadrupole and isovector giant dipole resonances are presented and compared with calculations. Decays to low-lying excited states are also discussed. Preliminary results from an experiment to isolate the 208 Pb isovector quadrupole resonance using its gamma decay are presented. 22 refs., 19 figs., 1 tab

Complications of acromegaly: thyroid and colon.

Science.gov (United States)

Tirosh, Amit; Shimon, Ilan

2017-02-01

In acromegaly the long-term exposure to high growth hormone (GH) and insulin-like growth factor-1 (IGF-1) levels may result in specific complications in different human organs, including the thyroid gland and the colon. We will review here the evidence available regarding the characteristic thyroid and colon complications in acromegaly. This review summarizes the published data observing noncancerous structural abnormalities (thyroid nodules, colonic polyps) and thyroid and colon cancer in patients diagnosed with acromegaly. Thyroid micro-carcinomas are probably over-diagnosed among acromegalic patients. In regard to colon cancer, there is no sufficient data to suggest that colon cancer risk is higher in acromegaly compared to the general population.

Giant calculus: review and report of a case.

Science.gov (United States)

Woodmansey, Karl; Severine, Anthony; Lembariti, Bakari S

2013-01-01

Dental calculus is a common oral finding. The term giant calculus is used to describe unusually large deposits of dental calculus. Several extreme cases have been reported in the dental literature. The specific etiology of these cases remains uncertain. This paper reviews previously reported cases, and presents another extreme example of giant calculus.

External coating of colonic anastomoses

DEFF Research Database (Denmark)

Pommergaard, Hans-Christian; Achiam, Michael Patrick; Rosenberg, Jacob

2012-01-01

Colon anastomotic leakage remains both a frequent and serious complication in gastrointestinal surgery. External coating of colonic anastomoses has been proposed as a means to lower the rate of this complication. The aim of this review was to evaluate existing studies on external coating of colonic...

Three cases giant panda attack on human at Beijing Zoo

OpenAIRE

Zhang, Peixun; Wang, Tianbing; Xiong, Jian; Xue, Feng; Xu, Hailin; Chen, Jianhai; Zhang, Dianying; Fu, Zhongguo; Jiang, Baoguo

2014-01-01

Panda is regarded as Chinese national treasure. Most people always thought they were cute and just ate bamboo and had never imagined a panda could be vicious. Giant panda attacks on human are rare. There, we present three cases of giant panda attacks on humans at the Panda House at Beijing Zoo from September 2006 to June 2009 to warn people of the giant panda’s potentially dangerous behavior.

Three cases giant panda attack on human at Beijing Zoo.

Science.gov (United States)

Zhang, Peixun; Wang, Tianbing; Xiong, Jian; Xue, Feng; Xu, Hailin; Chen, Jianhai; Zhang, Dianying; Fu, Zhongguo; Jiang, Baoguo

2014-01-01

Panda is regarded as Chinese national treasure. Most people always thought they were cute and just ate bamboo and had never imagined a panda could be vicious. Giant panda attacks on human are rare. There, we present three cases of giant panda attacks on humans at the Panda House at Beijing Zoo from September 2006 to June 2009 to warn people of the giant panda's potentially dangerous behavior.

Carbon isotope ratios in field Population II giant stars

International Nuclear Information System (INIS)

Sneden, C.; Pilachowski, C.A.; Vandenberg, D.A.; Kitt Peak National Observatory, Tucson, AZ; Victoria Univ., Canada)

1986-01-01

Carbon isotope ratios have been derived from high-resolution spectra of the CH G-band in 15 very metal-poor Population II giant stars and two similar dwarf stars. Many of the giants possess very low C-12/C-13 ratios, some approaching the CN cycle equilibrium value. The metal-poor dwarfs do not have detectable CH-13 features; thus the low carbon isotope ratios in the giants probably are due to their internal evolutions. These results strongly support the idea that at least part of the anomalously low C/N values in Population II giants arises from very efficient mixing of their envelopes into the CN cycle burning layers. Detailed calculations of the expected CNO surface abundances in Population II giants in different evolutionary states have been performed. These computations demonstrate that the observed carbon isotope ratios cannot be produced during the first dredge-up mixing phases in low-mass, low metal abundance stars. Numerical experiments show that theoretical and observational results can be brought into agreement with artificially induced extra mixing. An agent to provoke this additional mixing has not been identified with certainty yet, although internal stellar rotation is a promising candidate. 63 references

Giant proximity effect and critical opalescence in EuS

Science.gov (United States)

Charlton, Timothy; Ramos, Silvia; Quintanilla, Jorge; Suter, Andreas; Moodera, Jagadeesh

2015-03-01

The proximity effect is a type of wetting phenomenon where an ordered state, usually magnetism or superconductivity, ``leaks'' from one material into an adjacent one over some finite distance. For superconductors, the characteristic range is of the order of the coherence length, usually hundreds of nm. Nevertheless much longer, ``giant'' proximity effects have been observed in cuprate perovskite junctions. Such giant proximity effects can be understood by taking into account the divergence of the pairing susceptibility in the non-superconducting material when it is itself close to a superconducting instability: a superconducting version of critical opalescence. Since critical opalescence occurs in all second order phase transitions, giant proximity effects are expected to be general, therefor there must be a giant ferromagnetic proximity effect. Compared to its superconducting counterpart, the giant ferromagnetic proximity effect has the advantage that the order parameter (magnetization) can be observed directly. We have fabricated Co/EuS thin films and measured the magnetization profiles as a function of temperature using the complementary techniques of low energy muon relaxation and polarized neutron reflectivity. Details of the proximity effect near TCEuS will be presented.

Epidemiology, genetic, natural history and clinical presentation of giant cerebral aneurysms.

Science.gov (United States)

Lonjon, M; Pennes, F; Sedat, J; Bataille, B

2015-12-01

Giant cerebral aneurysms represent 5% of intracranial aneurysms, and become symptomatic between 40 and 70 years with a female predominance. In the paediatric population, the giant aneurysm rate is higher than in the adult population. Classified as saccular, fusiform and serpentine, the natural history of giant cerebral aneurysms is characterized by thrombosis, growth and rupture. The pathogenesis of these giant aneurysms is influenced by a number of risk factors, including genetic variables. Genome-wide association studies have identified some chromosomes highlighting candidate genes. Although these giant aneurysms can occur at the same locations as their smaller counterparts, a predilection for the cavernous location has been observed. Giant aneurysms present with symptoms caused by a mass effect depending on their location or by rupture; ischemic manifestations rarely reveal the aneurysm. If the initial clinical descriptions have been back up by imagery, the clinical context with a pertinent analysis of the risk factors remain the cornerstone for the management decisions of these lesions. Five year cumulative rupture rates for patients with giant aneurysm were 40% for those located on the anterior part of circle of Willis and 50% for those on the posterior part. The poor outcome of untreated patients justifies the therapeutic risks. Copyright © 2015. Published by Elsevier Masson SAS.

Giant Cell Angiofibroma in Unusual Localization: A Case Report

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Emel Ebru Pala

2012-01-01

Full Text Available Giant cell angiofibroma (GCA was initially described as a potentially recurrent tumor in the orbit of adults. However, it is now recognized that it can also present in other locations. The morphological hallmark is a richly vascularized patternless spindle cell proliferation containing pseudovascular spaces and floret like multinucleate giant cells. Our case was a 32-years-old female complaining of painless solitary nodule arising on the occipital region of the scalp, which was diagnosed as giant cell angiofibroma. We report the case because of its extremely rare localization.

Giant Epidermoid Cyst of the Thigh

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NH Mohamed Haflah

2011-11-01

Full Text Available Epidermoid cyst is a common benign cutaneous swelling frequently encountered in surgical practice. It usually presents as a painless lump frequently occurring in hairbearing areas of the body particularly the scalp, scrotum, neck, shoulder and back. Giant epidermoid cysts commonly occur in hairy areas such as the scalp. We present here the case of a rare occurrence of a giant epidermoid cyst in the less hairy area of the right upper thigh mimicking a soft tissue sarcoma. Steps are highlighted for the management of this unusual cyst.

Giant HII regions as distance indicators

International Nuclear Information System (INIS)

Melnick, Jorge; Terlevich, Robert; Moles, Mariano

1987-01-01

The correlations between the integrated Hβ luminosities, the velocity widths of the nebular lines and the metallicities of giant HII regions and HII galaxies are demonstrated to provide powerful distance indicators. They are calibrated on a homogeneous sample of giant HII regions with well determined distances and applied to distant HII galaxies to obtain a value of H 0 =95+-10 for the Hubble parameter, consistent with the value obtained by the Tully-Fisher technique. The effect of Malmquist bias and other systematic effects on the HII region method are discussed in detail. (Author)

Radiological evaluation of G-I tract diverticulum in Korean

International Nuclear Information System (INIS)

Sung, Ki Jun; Park, Joong Wha; Hong, In Soo; Kim, Myung Soon

1986-01-01

We reviewed 887 cases of esophagogram, 8863 cases of UGI series, 174 cases of small bowel series and 1926 cases of double contrast barium enema performed at the department of Radiology, Wonju College of Medicine from Jan. 1982 to Dec. 1984 to analyzed diverticular disease pattern of the GI tract in Korean. The results were as follows: 1. Esophageal diverticular. The incidence was 3.27% and the sex ratio of male to female was 2.22:1 Age distribution was relatively even and most common in 5th decade. Most of them showed single in number, above 6mm sized and common in middle one third of both lateral side of esophagus. 2. Stomach diverticular. The incidence was 0.07% and the sex ratio of male to female was equal. Multiplicity was single in all cases. Most of them were above 11mm sized and common in gastric fundic area of greater curvature site of stomach. 3. Duodenal diverticular. The incidence was 1.51% and relatively even distribution in sex and age and common in after 5th decade. Most of them showed single in number, 11-30mm sized and common in medial margin of 2nd portion of duodenum. 4. Colonic diverticular. The incidence was 2.34% and predominant in male and common in 5th. and 6th. decade. Most of them showed single in number, below 5mm sized and common in right sided colon.

Radiological evaluation of G-I tract diverticulum in Korean

Energy Technology Data Exchange (ETDEWEB)

Sung, Ki Jun; Park, Joong Wha; Hong, In Soo; Kim, Myung Soon [Yeonsei University Wonju College of Medicine, Wonju (Korea, Republic of)

1986-12-15

We reviewed 887 cases of esophagogram, 8863 cases of UGI series, 174 cases of small bowel series and 1926 cases of double contrast barium enema performed at the department of Radiology, Wonju College of Medicine from Jan. 1982 to Dec. 1984 to analyzed diverticular disease pattern of the GI tract in Korean. The results were as follows: 1. Esophageal diverticular. The incidence was 3.27% and the sex ratio of male to female was 2.22:1 Age distribution was relatively even and most common in 5th decade. Most of them showed single in number, above 6mm sized and common in middle one third of both lateral side of esophagus. 2. Stomach diverticular. The incidence was 0.07% and the sex ratio of male to female was equal. Multiplicity was single in all cases. Most of them were above 11mm sized and common in gastric fundic area of greater curvature site of stomach. 3. Duodenal diverticular. The incidence was 1.51% and relatively even distribution in sex and age and common in after 5th decade. Most of them showed single in number, 11-30mm sized and common in medial margin of 2nd portion of duodenum. 4. Colonic diverticular. The incidence was 2.34% and predominant in male and common in 5th. and 6th. decade. Most of them showed single in number, below 5mm sized and common in right sided colon.

Restricted access Giant kelp, Macrocystis pyrifera, increases faunal diversity through physical engineering

Science.gov (United States)

Miller, Robert J.; Lafferty, Kevin D.; Lamy, Thomas; Kui, Li; Rassweiler, Andrew; Reed, Daniel C.

2018-01-01

Foundation species define the ecosystems they live in, but ecologists have often characterized dominant plants as foundational without supporting evidence. Giant kelp has long been considered a marine foundation species due to its complex structure and high productivity; however, there is little quantitative evidence to evaluate this. Here, we apply structural equation modelling to a 15-year time series of reef community data to evaluate how giant kelp affects the reef community. Although species richness was positively associated with giant kelp biomass, most direct paths did not involve giant kelp. Instead, the foundational qualities of giant kelp were driven mostly by indirect effects attributed to its dominant physical structure and associated engineering influence on the ecosystem, rather than by its use as food by invertebrates and fishes. Giant kelp structure has indirect effects because it shades out understorey algae that compete with sessile invertebrates. When released from competition, sessile species in turn increase the diversity of mobile predators. Sea urchin grazing effects could have been misinterpreted as kelp effects, because sea urchins can overgraze giant kelp, understorey algae and sessile invertebrates alike. Our results confirm the high diversity and biomass associated with kelp forests, but highlight how species interactions and habitat attributes can be misconstrued as direct consequences of a foundation species like giant kelp.

Seasonal changes of progesterone and testosterone contents in hair of giant pandas

International Nuclear Information System (INIS)

Guo Dazhi; Liu Xianyi; Chen Faju

1994-01-01

Seasonal changes of progesterone content (PSC) in hair of three female giant pandas and testosterone content (TSC) in hair of two male giant pandas were tested by radioimmunoassay. During March to early June, PSC in two non-pregnant giant pandas (x-bar+-SD = 13.40 +- 10.06 and 10.60 +- 8.88 ng/g hair respectively) were higher than those in non-breeding season (3.07 +-1.07 and 3.20 +- 1.15 ng/g, P<0.01). PSC in a 18-year-old female giant panda remained at low levels (2.72 +- 1.49 ng/g) during March to December. In a twin-bear giant panda, PSC (6.77 +- 3.66 ng/g) appeared higher than that in non-pregnant giant pandas in non-breeding season. Around February to the end of May, TSC in two male giant pandas (1.89 +- 1.71 and 1.82 +- 1.04 ng/g respectively) were also higher than that in non-breeding season (0.98 +- 0.57 and 0.75 +- 0.39 ng/g, P<0.01). the findings from the study implied that giant panda's hair is possible to be used as a specimen to carry out steroids research in the endangered species

Leiomyosarcoma of the skin with osteoclast-like giant cells: a case report

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Sarma Deba P

2007-12-01

Full Text Available Abstract Introduction Osteoclast-like giant cells have been noted in various malignant tumors, such as, carcinomas of pancreas and liver and leiomyosarcomas of non-cutaneous locations, such as, uterus and rectum. We were unable to find any reported case of a leiomyosarcoma of the skin where osteoclast-like giant cells were present in the tumor. Case presentation We report a case of a 59-year-old woman with a cutaneous leiomyosarcoma associated with osteoclast-like giant cells arising from the subcutaneous artery of the leg. The nature of the giant cells is discussed in light of the findings from the immunostaining as well as survey of the literature. Conclusion A rare case of cutaneous leiomyosarcoma with osteoclast-like giant cells is reported. The giant cells in the tumor appear to be reactive histiocytic cells.

On the Terminal Rotation Rates of Giant Planets

Science.gov (United States)

Batygin, Konstantin

2018-04-01

Within the general framework of the core-nucleated accretion theory of giant planet formation, the conglomeration of massive gaseous envelopes is facilitated by a transient period of rapid accumulation of nebular material. While the concurrent build-up of angular momentum is expected to leave newly formed planets spinning at near-breakup velocities, Jupiter and Saturn, as well as super-Jovian long-period extrasolar planets, are observed to rotate well below criticality. In this work, we demonstrate that the large luminosity of a young giant planet simultaneously leads to the generation of a strong planetary magnetic field, as well as thermal ionization of the circumplanetary disk. The ensuing magnetic coupling between the planetary interior and the quasi-Keplerian motion of the disk results in efficient braking of planetary rotation, with hydrodynamic circulation of gas within the Hill sphere playing the key role of expelling spin angular momentum to the circumstellar nebula. Our results place early-stage giant planet and stellar rotation within the same evolutionary framework, and motivate further exploration of magnetohydrodynamic phenomena in the context of the final stages of giant planet formation.

Red giants: then and now

Science.gov (United States)

Faulkner, John

Fred Hoyle's work on the structure and evolution of red giants, particularly his pathbreaking contribution with Martin Schwarzschild (Hoyle and Schwarzschild 1955), is both lauded and critically assessed. In his later lectures and work with students in the early 1960s, Hoyle presented more physical ways of understanding some of the approximations used, and results obtained, in that seminal paper. Although later ideas by other investigators will be touched upon, Hoyle's viewpoint - that low-mass red giants are essentially white dwarfs with a serious mass-storage problem - is still extremely fruitful. Over the years, I have further developed his method of attack. Relatively recently, I have been able to deepen and broaden the approach, finally extending the theory to provide a unifying treatment of the structure of low-mass stars from the main sequence though both the red-giant and horizontal-branch phases of evolution. Many aspects of these stars that had remained puzzling, even mysterious, for decades have now fallen into place, and some questions have been answered that were not even posed before. With low-mass red giants as the simplest example, this recent work emphasizes that stars, in general, may have at least two distinct but very important centres: (I) a geometrical centre, and (II) a separate nuclear centre, residing in a shell outside a zero-luminosity dense core for example. This two-centre perspective leads to an explicit, analytical, asymptotic theory of low-mass red-giant structure. It enables one to appreciate that the problem of understanding why such stars become red giants is one of anticipating a remarkable yet natural structural bifurcation that occurs in them. This bifurcation occurs because of a combination of known and understandable facts just summarized namely that, following central hydrogen exhaustion, a thin nuclear-burning shell does develop outside a more-or-less dense core. In the resulting theory, both ρsh/ρolinec and �

Giant monopole resonance in transitional and deformed nuclei

International Nuclear Information System (INIS)

Garg, U.; Bogucki, P.; Bronson, J.D.; Lui, Y.; Youngblood, D.H.

1984-01-01

Small-angle inelastic α-scattering measurements have been made at E/sub α/ = 129 MeV on /sup 144,148/Sm and /sup 142,146,150/Nd to investigate the giant monopole resonance in transitional and deformed nuclei. The experimental data reveal a mixing of L = 0 and L = 2 modes in 148 Sm resulting in almost identical angular distributions for the two components of the giant resonance peaks in the angular range 2 0 --6 0 . A ''splitting'' of the giant monopole resonance is observed in 150 Nd; the extent of this splitting is smaller than that reported for 154 Sm. Comparison is made with the predictions of various theoretical models

Imaging of giant pituitary adenomas

Energy Technology Data Exchange (ETDEWEB)

Majos, C.; Coll, S.; Aguilera, C.; Pons, L.C. [Bellvitge Univ., Barcelona (Spain). Inst. de Diagnostice per la Imatge; Acebes, J.J. [Department of Neurosurgery, Ciutat Sanitaria i Universitaria de Bellvitge, L`Hospitalet de Llobregat, Barcelona (Spain)

1998-10-01

We present five proven giant pituitary adenomas studied by CT and MRI, and review the clinical and imaging findings. Our aim was to examine the radiologic appearances and to search for criteria useful in distinguishing these tumors from other sellar and suprasellar tumours, mainly craniopharyngioma. The main differences from small adenomas were high prevalence of macrocysts, a more invasive behaviour and a clinical picture dominated by mass effect rather than endocrine disturbance. Factors supporting the diagnosis of pituitary adenoma in a giant intra- and suprasellar mass include: infrasellar extension, absence of calcification and presence of low-signal cysts on T1-weighted images. (orig.) (orig.) With 4 figs., 2 tabs., 9 refs.

Muscarinic Receptor Signaling in Colon Cancer

Energy Technology Data Exchange (ETDEWEB)

Rosenvinge, Erik C. von, E-mail: evonrose@medicine.umaryland.edu; Raufman, Jean-Pierre [University of Maryland School of Medicine, Division of Gastroenterology & Hepatology, 22 S. Greene Street, N3W62, Baltimore, MD 21201 (United States); Department of Veterans Affairs, VA Maryland Health Care System, 10 North Greene Street, Baltimore, MD 21201 (United States)

2011-03-02

According to the adenoma-carcinoma sequence, colon cancer results from accumulating somatic gene mutations; environmental growth factors accelerate and augment this process. For example, diets rich in meat and fat increase fecal bile acids and colon cancer risk. In rodent cancer models, increased fecal bile acids promote colon dysplasia. Conversely, in rodents and in persons with inflammatory bowel disease, low-dose ursodeoxycholic acid treatment alters fecal bile acid composition and attenuates colon neoplasia. In the course of elucidating the mechanism underlying these actions, we discovered that bile acids interact functionally with intestinal muscarinic receptors. The present communication reviews muscarinic receptor expression in normal and neoplastic colon epithelium, the role of autocrine signaling following synthesis and release of acetylcholine from colon cancer cells, post-muscarinic receptor signaling including the role of transactivation of epidermal growth factor receptors and activation of the ERK and PI3K/AKT signaling pathways, the structural biology and metabolism of bile acids and evidence for functional interaction of bile acids with muscarinic receptors on human colon cancer cells. In murine colon cancer models, deficiency of subtype 3 muscarinic receptors attenuates intestinal neoplasia; a proof-of-concept supporting muscarinic receptor signaling as a therapeutic target for colon cancer.

Muscarinic Receptor Signaling in Colon Cancer

International Nuclear Information System (INIS)

Rosenvinge, Erik C. von; Raufman, Jean-Pierre

2011-01-01

According to the adenoma-carcinoma sequence, colon cancer results from accumulating somatic gene mutations; environmental growth factors accelerate and augment this process. For example, diets rich in meat and fat increase fecal bile acids and colon cancer risk. In rodent cancer models, increased fecal bile acids promote colon dysplasia. Conversely, in rodents and in persons with inflammatory bowel disease, low-dose ursodeoxycholic acid treatment alters fecal bile acid composition and attenuates colon neoplasia. In the course of elucidating the mechanism underlying these actions, we discovered that bile acids interact functionally with intestinal muscarinic receptors. The present communication reviews muscarinic receptor expression in normal and neoplastic colon epithelium, the role of autocrine signaling following synthesis and release of acetylcholine from colon cancer cells, post-muscarinic receptor signaling including the role of transactivation of epidermal growth factor receptors and activation of the ERK and PI3K/AKT signaling pathways, the structural biology and metabolism of bile acids and evidence for functional interaction of bile acids with muscarinic receptors on human colon cancer cells. In murine colon cancer models, deficiency of subtype 3 muscarinic receptors attenuates intestinal neoplasia; a proof-of-concept supporting muscarinic receptor signaling as a therapeutic target for colon cancer

Muscarinic Receptor Signaling in Colon Cancer

Directory of Open Access Journals (Sweden)

Jean-Pierre Raufman

2011-03-01

Full Text Available According to the adenoma-carcinoma sequence, colon cancer results from accumulating somatic gene mutations; environmental growth factors accelerate and augment this process. For example, diets rich in meat and fat increase fecal bile acids and colon cancer risk. In rodent cancer models, increased fecal bile acids promote colon dysplasia. Conversely, in rodents and in persons with inflammatory bowel disease, low-dose ursodeoxycholic acid treatment alters fecal bile acid composition and attenuates colon neoplasia. In the course of elucidating the mechanism underlying these actions, we discovered that bile acids interact functionally with intestinal muscarinic receptors. The present communication reviews muscarinic receptor expression in normal and neoplastic colon epithelium, the role of autocrine signaling following synthesis and release of acetylcholine from colon cancer cells, post-muscarinic receptor signaling including the role of transactivation of epidermal growth factor receptors and activation of the ERK and PI3K/AKT signaling pathways, the structural biology and metabolism of bile acids and evidence for functional interaction of bile acids with muscarinic receptors on human colon cancer cells. In murine colon cancer models, deficiency of subtype 3 muscarinic receptors attenuates intestinal neoplasia; a proof-of-concept supporting muscarinic receptor signaling as a therapeutic target for colon cancer.

Diffuse hemangioma of the colon

International Nuclear Information System (INIS)

Reis, J.; Caseiro-Alves, F.; Cruz, L.; Moreira, A.; Rebelo, O.

1995-01-01

We report two cases of diffuse hemangioma of the colon in adolescent patients. One patient had multiple phleboliths at the lower pelvis identified with plain radiographs of the abdomen. Several aspects were seen on double-contrast enema: luminal narrowing, colonic-wall thickening and submucosal colonic masses that changed in appearance with the degree of colonic distension. Angiography was inconclusive in one case. Use of CT and MR provided relevant information regarding the true extent of the disease, but MR was superior in demonstrating unequivocally the vascular nature of the lesions. (orig.)

Importance of neural mechanisms in colonic mucosal and muscular dysfunction in adult rats following neonatal colonic irritation.

Science.gov (United States)

Chaloner, A; Rao, A; Al-Chaer, E D; Greenwood-Van Meerveld, B

2010-02-01

Previous studies have shown that early life trauma induced by maternal separation or colonic irritation leads to hypersensitivity to colorectal distension in adulthood. We tested the hypothesis that repetitive colorectal distension in neonates leads to abnormalities in colonic permeability and smooth muscle function in the adult rat. In neonatal rats, repetitive colorectal distension was performed on days 8, 10, and 12. As adults, stool consistency was graded from 0 (formed stool) to 3 (liquid stool). Colonic tissue was isolated for histology and myeloperoxidase levels. The colonic mucosa was placed in modified Ussing chambers for measurements of permeability and short-circuit current responses to forskolin, electrical field stimulation, and carbachol. Segments of colonic musculature were placed in organ baths and contractile response to potassium chloride, electrical field stimulation, and carbachol were determined. In adult rats that experienced neonatal colonic irritation, no significant changes in colonic histology or myeloperoxidase activity were observed; however, stool consistency scores were increased. Mucosal permeability, measured as an increase in basal conductance, was significantly increased but no changes in short-circuit current responses were observed. In adulthood, rats that underwent colorectal distension as neonates exhibited an elevated smooth muscle contractile response to potassium chloride, but no changes in response to electrical field stimulation or carbachol. In summary, neonatal colonic irritation, shown previously to produce colonic hypersensitivity, leads to significant alterations in colonic mucosal and smooth muscle function characterized by loose stools, increased mucosal permeability, and increased smooth muscle contractility in the absence of colon inflammation in adulthood. Published by Elsevier Ltd.

Probing the Deep End of the Milky Way with New Oscillating Kepler Giants

Science.gov (United States)

Mathur, Savita; García, Rafael A.; Huber, Daniel; Regulo, Clara; Stello, Dennis; Beck, Paul G.; Houmani, Kenza; Salabert, David

2017-10-01

The Kepler mission has been a success in both exoplanet search and stellar physics studies. Red giants have actually been quite a highlight in the Kepler scene. The Kepler long and almost continuous four-year observations allowed us to detect oscillations in more than 15,000 red giants targeted by the mission. However by looking at the power spectra of 45,000 stars classified as dwarfs according to the Q1-16 Kepler star properties catalog, we detected red-giant like oscillations in 850 stars. Even though this is a small addition to the known red-giant sample, these misclassified stars represent a goldmine for galactic archeology studies. Indeed they happen to be fainter (down to Kp 16) and more distant (d>10kPc) than the known red giants, opening the possibility to probe unknown regions of our Galaxy. The faintness of these red giants with detected oscillations is very promising for detecting acoustic modes in red giants observed with K2 and TESS. In this talk, I will present this new sample of red giants with their revised stellar parameters derived from asteroseismology. Then I will discuss about the distribution of their masses, distances, and evolutionary states compared to the previously known sample of red giants.

Metaphyseal giant cell tumor

International Nuclear Information System (INIS)

Pereira, L.F.; Hemais, P.M.P.G.; Aymore, I.L.; Carmo, M.C.R. do; Cunha, M.E.P.R. da; Resende, C.M.C.

1986-01-01

Three cases of metaphyseal giant cell tumor are presented. A review of the literature is done, demostrating the lesion is rare and that there are few articles about it. Age incidence and characteristics of the tumor are discussed. (Author) [pt

Piriformospora indica root colonization triggers local and systemic root responses and inhibits secondary colonization of distal roots.

Science.gov (United States)

Pedrotti, Lorenzo; Mueller, Martin J; Waller, Frank

2013-01-01

Piriformosporaindica is a basidiomycete fungus colonizing roots of a wide range of higher plants, including crop plants and the model plant Arabidopsis thaliana. Previous studies have shown that P. indica improves growth, and enhances systemic pathogen resistance in leaves of host plants. To investigate systemic effects within the root system, we established a hydroponic split-root cultivation system for Arabidopsis. Using quantitative real-time PCR, we show that initial P. indica colonization triggers a local, transient response of several defense-related transcripts, of which some were also induced in shoots and in distal, non-colonized roots of the same plant. Systemic effects on distal roots included the inhibition of secondary P. indica colonization. Faster and stronger induction of defense-related transcripts during secondary inoculation revealed that a P. indica pretreatment triggers root-wide priming of defense responses, which could cause the observed reduction of secondary colonization levels. Secondary P. indica colonization also induced defense responses in distant, already colonized parts of the root. Endophytic fungi therefore trigger a spatially specific response in directly colonized and in systemic root tissues of host plants.

Giant Pulse Phenomena in a High Gain Erbium Doped Fiber Amplifier

Science.gov (United States)

Li, Stephen X.; Merritt, Scott; Krainak, Michael A.; Yu, Anthony

2018-01-01

High gain Erbium Doped Fiber Amplifiers (EDFAs) are vulnerable to optical damage when unseeded, e.g. due to nonlinear effects that produce random, spontaneous Q-switched (SQS) pulses with high peak power, i.e. giant pulses. Giant pulses can damage either the components within a high gain EDFA or external components and systems coupled to the EDFA. We explore the conditions under which a reflective, polarization-maintaining (PM), core-pumped high gain EDFA generates giant pulses, provide details on the evolution of normal pulses into giant pulses, and provide results on the transient effects of giant pulses on an amplifier's fused-fiber couplers, an effect which we call Fiber Overload Induced Leakage (FOIL). While FOIL's effect on fused-fiber couplers is temporary, its damage to forward pump lasers in a high gain EDFA can be permanent.

Colon Cancer Detection by ‘Rendezvous Colonoscopy’: Successful Removal of Stuck Colon Capsule by Conventional Colonoscopy

Directory of Open Access Journals (Sweden)

István Rácz

2010-02-01

Full Text Available Although capsule retention is a known complication of small bowel capsule endoscopy, initial studies with colon capsule endoscopy (CCE have not reported any capsule retention or sticking neither in the small bowel nor in the colon. We report a complication of CCE when the stuck colon capsule was passed through the malignant colon stricture and removed by the aid of a flexible colonoscope. During CCE in a 76-year-old iron deficiency anemia patient the real-time viewing system indicated the colon capsule to be stuck in a malignant ascending colon stricture for more than two hours. With the aim to avoid complete capsule retention, immediate colonoscopy was performed. The stuck capsule was caught by a polypectomy snare, passed through the tumor stricture and finally removed from the large bowel. The current case describes the usefulness of the real-time viewing system. Similar situations may occur during the forthcoming spread of CCE and the present case is an example of how to manage the potentially risky stuck colon capsule condition.

Giant resonances in atoms and in fluorine cage molecules

International Nuclear Information System (INIS)

Mansfield, M.W.D.

1987-01-01

Giant resonances in the photoabsorption spectra of atoms occur in the extreme ultraviolet region of the electromagnetic spectrum. In order to observe absorption spectra in this region it is necessary to generate columns of atomic vapor which will often by very hot and chemically aggressive, and to contain them without solid windows between two regions of high vacuum, the spectrometer and the light source, usually an electron synchrotron. The technical problems are often formidable so that although it had long been recognized that giant resonances in solid lanthanides were essentially atomic phenomena (Fomichev et al. 1967, Dehmer et al. 1971) earlier investigations of giant resonances in atoms were limited to the more manageable elements which precede the transition rows, the inert gases, alkali and alkaline earth elements. In this paper the authors discusses the spectra of transition row atoms in order of decreasing localization (Smith and Kmetko 1983) viz. 4d → f, 5d → f, 3p → d, 4p → d and 5p → d. He tends to avoid discussion of the giant resonances themselves because their profiles and interpretation will be discussed comprehensively by other contributors. Instead he concentrates on the detailed analyses which have been attempted of the discrete structure which usually accompanies giant resonances in atoms. Interpretation of this structure can provide accurate determinations of thresholds for inner shell excitation in atoms and can also be used to anticipate structure which may overlie the giant resonances and distort their profiles. 75 references, 21 figures

EFFECTS OF DYNAMICAL EVOLUTION OF GIANT PLANETS ON SURVIVAL OF TERRESTRIAL PLANETS

International Nuclear Information System (INIS)

Matsumura, Soko; Ida, Shigeru; Nagasawa, Makiko

2013-01-01

The orbital distributions of currently observed extrasolar giant planets allow marginally stable orbits for hypothetical, terrestrial planets. In this paper, we propose that many of these systems may not have additional planets on these ''stable'' orbits, since past dynamical instability among giant planets could have removed them. We numerically investigate the effects of early evolution of multiple giant planets on the orbital stability of the inner, sub-Neptune-like planets which are modeled as test particles, and determine their dynamically unstable region. Previous studies have shown that the majority of such test particles are ejected out of the system as a result of close encounters with giant planets. Here, we show that secular perturbations from giant planets can remove test particles at least down to 10 times smaller than their minimum pericenter distance. Our results indicate that, unless the dynamical instability among giant planets is either absent or quiet like planet-planet collisions, most test particles down to ∼0.1 AU within the orbits of giant planets at a few AU may be gone. In fact, out of ∼30% of survived test particles, about three quarters belong to the planet-planet collision cases. We find a good agreement between our numerical results and the secular theory, and present a semi-analytical formula which estimates the dynamically unstable region of the test particles just from the evolution of giant planets. Finally, our numerical results agree well with the observations, and also predict the existence of hot rocky planets in eccentric giant planet systems.

Giant vesical calculus

African Journals Online (AJOL)

Giant vesical calculus. A case report. H. H. LAUBSCHER. Summary. An exceptional case of bladder stone is presented. The case is unusual as regards the size of the stone and the fact that the patient did··not seek medical assistance much earlier, as this was readily avail- able. Furthermore, recovery after removal of the.

Einstein Observatory magnitude-limited X-ray survey of late-type giant and supergiant stars

Science.gov (United States)

Maggio, A.; Vaiana, G. S.; Haisch, B. M.; Stern, R. A.; Bookbinder, J.

1990-01-01

Results are presented of an extensive X-ray survey of 380 giant and supergiant stars of spectral types from F to M, carried out with the Einstein Observatory. It was found that the observed F giants or subgiants (slightly evolved stars with a mass M less than about 2 solar masses) are X-ray emitters at the same level of main-sequence stars of similar spectral type. The G giants show a range of emissions more than 3 orders of magnitude wide; some single G giants exist with X-ray luminosities comparable to RS CVn systems, while some nearby large G giants have upper limits on the X-ray emission below typical solar values. The K giants have an observed X-ray emission level significantly lower than F and F giants. None of the 29 M giants were detected, except for one spectroscopic binary.

[Giant idiopathic hydronephrosis: toward a two-step therapeutic approach].

Science.gov (United States)

Boudhaye, Taher Ismail; Sidimalek, Mohamed; Jdoud, Cheikhani

2017-01-01

Giant hydronephrosis is rare. It is usually caused by ureteropelvic junction syndrome. We here report the unusual case of a patient hospitalized with giant hydronephrosis associated with impaired general condition. Diagnosis was based on CT scan. The patient underwent deferred nephrectomy after percutaneous drainage.

Surgical sterilization of the African giant pouched rats | Werema ...

African Journals Online (AJOL)

... to all principles of surgery. This study has demonstrated the three surgical procedures for African Giant pouched rats as being useful to veterinarians in public/private practice and/or in biomedical research facilities. Keywords: Surgical sterilization, ovariectomy, ovariohysterectomy, orchidectomy, African giant pouched rats ...

Finite size effects for giant magnons on physical strings

International Nuclear Information System (INIS)

Minahan, J.A.; Ohlsson Sax, O.

2008-01-01

Using finite gap methods, we find the leading order finite size corrections for an arbitrary number of giant magnons on physical strings, where the sum of the momenta is a multiple of 2π. Our results are valid for the Hofman-Maldacena fundamental giant magnons as well as their dyonic generalizations. The energy corrections turn out to be surprisingly simple, especially if all the magnons are fundamental, and at leading order are independent of the magnon flavors. We also show how to use the Bethe ansatz to find finite size corrections for dyonic giant magnons with large R-charges

Urotensin-II receptor is over-expressed in colon cancer cell lines and in colon carcinoma in humans.

Science.gov (United States)

Federico, Alessandro; Zappavigna, Silvia; Romano, Marco; Grieco, Paolo; Luce, Amalia; Marra, Monica; Gravina, Antonietta Gerarda; Stiuso, Paola; D'Armiento, Francesco Paolo; Vitale, Giovanni; Tuccillo, Concetta; Novellino, Ettore; Loguercio, Carmela; Caraglia, Michele

2014-01-01

Urotensin (U)-II receptor (UTR) has been previously reported to be over-expressed in a number of tumours. Whether UTR-related pathway plays a role in colon carcinogenesis is unknown. We evaluated UTR protein and mRNA expression in human epithelial colon cancer cell lines and in normal colon tissue, adenomatous polyps and colon cancer. U-II protein expression was assessed in cancer cell lines. Moreover, we evaluated the effects of U-II(4-11) (an UTR agonist), antagonists and knockdown of UTR protein expression through a specific shRNA, on proliferation, invasion and motility of human colon cancer cells. Cancer cell lines expressed U-II protein and UTR protein and mRNA. By immunohistochemistry, UTR was expressed in 5-30% of epithelial cells in 45 normal controls, in 30-48% in 21 adenomatous polyps and in 65-90% in 48 colon adenocarcinomas. UTR mRNA expression was increased by threefold in adenomatous polyps and eightfold in colon cancer, compared with normal colon. U-II(4-11) induced a 20-40% increase in cell growth while the blockade of the receptor with specific antagonists caused growth inhibition of 20-40%. Moreover, the knock down of UTR with a shRNA or the inhibition of UTR with the antagonist urantide induced an approximately 50% inhibition of both motility and invasion. UTR appears to be involved in the regulation of colon cancer cell invasion and motility. These data suggest that UTR-related pathway may play a role in colon carcinogenesis and that UTR may function as a target for therapeutic intervention in colon cancer. © 2013 Stichting European Society for Clinical Investigation Journal Foundation.

Establishment and cryopreservation of a giant panda skeletal muscle-derived cell line.

Science.gov (United States)

Yu, Fang-Jian; Zeng, Chang-Jun; Zhang, Yan; Wang, Cheng-Dong; Xiong, Tie-Yi; Fang, Sheng-Guo; Zhang, He-Min

2015-06-01

The giant panda Ailuropoda melanoleuca is an endangered species and is a symbol for wildlife conservation. Although efforts have been made to protect this rare and endangered species through breeding and conservative biology, the long-term preservation of giant panda genome resources (gametes, tissues, organs, genomic libraries, etc.) is still a practical option. In this study, the giant panda skeletal muscle-derived cell line was successfully established via primary explants culture and cryopreservation techniques. The population doubling time of giant panda skeletal cells was approximately 33.8 h, and this population maintained a high cell viability before and after cryopreservation (95.6% and 90.7%, respectively). The two skeletal muscle-specific genes SMYD1 and MYF6 were expressed and detected by RT-PCR in the giant panda skeletal muscle-derived cell line. Karyotyping analysis revealed that the frequencies of giant panda skeletal muscle cells showing a chromosome number of 2n=42 ranged from 90.6∼94.2%. Thus, the giant panda skeletal muscle-derived cell line provides a vital resource and material platform for further studies and is likely to be useful for the protection of this rare and endangered species.

Effects of certain burning treatments on veld condition in Giant's ...

African Journals Online (AJOL)

Effects of certain burning treatments on veld condition in Giant's Castle Game Reserve. ... Keywords: above-ground standing crop; basal cover; burning; composition change; giant's castle game reserve; natal ... AJOL African Journals Online.

Giant Congenital Melanocytic Nevus

DEFF Research Database (Denmark)

Rasmussen, Bo Sonnich; Henriksen, Trine Foged; Kølle, Stig-Frederik Trojahn

2015-01-01

Giant congenital melanocytic nevi (GCMN) occur in 1:20,000 livebirths and are associated with increased risk of malignant transformation. The treatment of GCMN from 1981 to 2010 in a tertiary referral center was reviewed evaluating the modalities used, cosmetic results, associated complications...

Nuclear isovector giant resonances excited by pion single charge exchange

International Nuclear Information System (INIS)

King, B.H.

1993-07-01

This thesis is an experimental study of isovector giant resonances in light nuclei excited by pion single charge exchange reactions. Giant dipole resonances in light nuclei are known to be highly structured. For the mass 9 and 13 giant dipole resonances, isospin considerations were found to be very important to understanding this structure. by comparing the excitation functions from cross section measurements of the (π + , π 0 ) and (π, π 0 ) inclusive reactions, the authors determined the dominant isospin structure of the analog IVGR's. The comparison was made after decomposing the cross section into resonant and non-resonant components. This decomposition is made in the framework of strong absorption and quasi-free scattering. Measurements in the region of the isovector giant dipole resonances (IVGDR) were made to cover the inclusive angular distributions out to the second minimum. Study of the giant resonance decay process provides further understanding of the resonances. This study was carried out by observing the (π + , π 0 p) coincident reactions involving the resonances of 9 B and 13 N excited from 9 Be and 13 C nuclei. These measurements determined the spectra of the decay protons. This method also permitted a decomposition of the giant resonances into their isospin components. The multipolarities of the resonances were revealed by the decay proton angular correlations which, for dipoles, are of the form 1 + A 2 P 2 (cos θ)

Giant hepatic regenerative nodules in Alagille syndrome

Energy Technology Data Exchange (ETDEWEB)

Rapp, Jordan B. [Lewis Katz School of Medicine at Temple University, Department of Radiology, Temple University Hospital, Philadelphia, PA (United States); Bellah, Richard D.; Anupindi, Sudha A. [The Children' s Hospital of Philadelphia, Department of Radiology, Philadelphia, PA (United States); University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA (United States); Maya, Carolina [The Children' s Hospital of Philadelphia, Department of Radiology, Philadelphia, PA (United States); Pawel, Bruce R. [University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA (United States); The Children' s Hospital of Philadelphia, Department of Pathology and Laboratory Medicine, Philadelphia, PA (United States)

2017-02-15

Children with Alagille syndrome undergo surveillance radiologic examinations as they are at risk for developing cirrhosis and hepatocellular carcinoma. There is limited literature on the imaging of liver masses in Alagille syndrome. We report the ultrasound (US) and magnetic resonance imaging (MRI) appearances of incidental benign giant hepatic regenerative nodules in this population. To describe the imaging findings of giant regenerative nodules in patients with Alagille syndrome. A retrospective search of the hospital database was performed to find all cases of hepatic masses in patients with Alagille syndrome during a 10-year period. Imaging, clinical charts, laboratory data and available pathology were reviewed and analyzed and summarized for each patient. Twenty of 45 patients with confirmed Alagille syndrome had imaging studies. Of those, we identified six with giant focal liver masses. All six patients had large central hepatic masses that were remarkably similar on US and MRI, in addition to having features of cirrhosis. In each case, the mass was located in hepatic segment VIII and imaging showed the mass splaying the main portal venous branches at the hepatic hilum, as well as smaller portal and hepatic venous branches coursing through them. On MRI, signal intensity of the mass was isointense to liver on T1-weighted sequences in four of six patients, but hyperintense on T1 in two of six patients. In all six cases, the mass was hypointense on T2- weighted sequences. The mass post-contrast was isointense to adjacent liver in all phases in five the cases. Five out of six patients had pathological correlation demonstrating preserved ductal architecture confirming the final diagnosis of a regenerative nodule. Giant hepatic regenerative nodules with characteristic US and MR features can occur in patients with Alagille syndrome with underlying cirrhosis. Recognizing these lesions as benign giant hepatic regenerative nodules should, thereby, mitigate any need for

Giant hepatic regenerative nodules in Alagille syndrome

International Nuclear Information System (INIS)

Rapp, Jordan B.; Bellah, Richard D.; Anupindi, Sudha A.; Maya, Carolina; Pawel, Bruce R.

2017-01-01

Children with Alagille syndrome undergo surveillance radiologic examinations as they are at risk for developing cirrhosis and hepatocellular carcinoma. There is limited literature on the imaging of liver masses in Alagille syndrome. We report the ultrasound (US) and magnetic resonance imaging (MRI) appearances of incidental benign giant hepatic regenerative nodules in this population. To describe the imaging findings of giant regenerative nodules in patients with Alagille syndrome. A retrospective search of the hospital database was performed to find all cases of hepatic masses in patients with Alagille syndrome during a 10-year period. Imaging, clinical charts, laboratory data and available pathology were reviewed and analyzed and summarized for each patient. Twenty of 45 patients with confirmed Alagille syndrome had imaging studies. Of those, we identified six with giant focal liver masses. All six patients had large central hepatic masses that were remarkably similar on US and MRI, in addition to having features of cirrhosis. In each case, the mass was located in hepatic segment VIII and imaging showed the mass splaying the main portal venous branches at the hepatic hilum, as well as smaller portal and hepatic venous branches coursing through them. On MRI, signal intensity of the mass was isointense to liver on T1-weighted sequences in four of six patients, but hyperintense on T1 in two of six patients. In all six cases, the mass was hypointense on T2- weighted sequences. The mass post-contrast was isointense to adjacent liver in all phases in five the cases. Five out of six patients had pathological correlation demonstrating preserved ductal architecture confirming the final diagnosis of a regenerative nodule. Giant hepatic regenerative nodules with characteristic US and MR features can occur in patients with Alagille syndrome with underlying cirrhosis. Recognizing these lesions as benign giant hepatic regenerative nodules should, thereby, mitigate any need for

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.)

Neglected Giant Scalp Basal Cell Carcinoma

Directory of Open Access Journals (Sweden)

Anne Kristine Larsen, MD

2014-03-01

Full Text Available Summary: Rarely, basal cell carcinoma grows to a giant size, invading the underlying deep tissue and complicating the treatment and reconstruction modalities. A giant basal cell carcinoma on the scalp is in some cases treated with a combination of surgery and radiation therapy, resulting in local control, a satisfactory long-term cosmetic and functional result. We present a case with a neglected basal cell scalp carcinoma, treated with wide excision and postoperative radiotherapy, reconstructed with a free latissimus dorsi flap. The cosmetic result is acceptable and there is no sign of recurrence 1 year postoperatively.

An atypical growth of a giant fibroadenoma after trauma.

Science.gov (United States)

Izadpanah, Ali; Karunanayake, Mihiran; Izadpanah, Arash; Sinno, Hani; Gilardino, Mirko

2012-10-01

Fibroadenomas are the most common benign breast lesion in female adolescents. However, it is important to recognize that a small percentage have been shown to progress to giant fibroadenomas. Giant fibroadenomas can spontaneously infarct leading to significant morbidity and are also difficult to distinguish from the more aggressive phyllodes tumors. We describe the first case, to the best of our knowledge, of a 12-year-old girl who presented with a giant fibroadenoma complicated by a central infarct and an intra-lesional hemorrhage from a trauma to the breast. The complicated giant fibroadenoma with an intra-lesional hemorrhage has characteristics of both benign and malignant lesions, and is difficult to distinguish by history and physical alone. Ultrasonography is a valuable tool yet the core needle biopsy remains the gold standard to confirm the diagnosis. Copyright © 2012 North American Society for Pediatric and Adolescent Gynecology. Published by Elsevier Inc. All rights reserved.

Emergency endovascular coiling of a ruptured giant splenic artery aneurysm

DEFF Research Database (Denmark)

Wernheden, Erika; Brenøe, Anne Sofie; Shahidi, Saeid

2017-01-01

Splenic artery aneurysms (SAAs) are the third most common abdominal aneurysm. Endovascular treatment of SAAs is preferred, and coiling is the most commonly used technique. Ruptured giant (>5 cm) SAAs are usually treated with open surgery including splenectomy. We present a rare case of a ruptured...... 15-cm giant SAA in an 84-year-old woman treated successfully with emergency endovascular coiling. To our knowledge, this is one of the few reports of emergency endovascular treatment for ruptured giant SAA....

Giant arachnoid granulation in a patient with benign intracranial hypertension

Energy Technology Data Exchange (ETDEWEB)

Kiroglu, Yilmaz; Yaqci, Baki; Cirak, Bayram; Karabulut, Nevzat [Pamukkale University, Department of Radiology, School of Medicine, Denizli (Turkey)

2008-10-15

We report magnetic resonance (MR), computed tomography (CT) and angiographic imaging of an unusual giant arachnoid granulation in the superior sagittal sinus in a man with headache and vertigo. Intrasinus pressure measurements revealed a significant pressure gradient across the lesion. MR imaging is useful to identify giant arachnoid granulation and dural sinus thrombosis, whereas dural sinus pressure measurement in certain cases of giant arachnoid granulations can be used to evaluate the lesion as the cause of the patient's symptoms. (orig.)

Giant arachnoid granulation in a patient with benign intracranial hypertension

International Nuclear Information System (INIS)

Kiroglu, Yilmaz; Yaqci, Baki; Cirak, Bayram; Karabulut, Nevzat

2008-01-01

We report magnetic resonance (MR), computed tomography (CT) and angiographic imaging of an unusual giant arachnoid granulation in the superior sagittal sinus in a man with headache and vertigo. Intrasinus pressure measurements revealed a significant pressure gradient across the lesion. MR imaging is useful to identify giant arachnoid granulation and dural sinus thrombosis, whereas dural sinus pressure measurement in certain cases of giant arachnoid granulations can be used to evaluate the lesion as the cause of the patient's symptoms. (orig.)

Functional annotation from the genome sequence of the giant panda

OpenAIRE

Huo, Tong; Zhang, Yinjie; Lin, Jianping

2012-01-01

The giant panda is one of the most critically endangered species due to the fragmentation and loss of its habitat. Studying the functions of proteins in this animal, especially specific trait-related proteins, is therefore necessary to protect the species. In this work, the functions of these proteins were investigated using the genome sequence of the giant panda. Data on 21,001 proteins and their functions were stored in the Giant Panda Protein Database, in which the proteins were divided in...

Surface Compositions of Red Giant Stars in Globular Clusters

Science.gov (United States)

Cheng, Eric; Lau, Marie; Smith, Graeme; Chen, Brian

2018-01-01

Globular clusters (GCs) are excellent “laboratories” to study the formation and evolution of our galaxy. In order to understand, more specifically, the chemical compositions and stellar evolution of the stars in GCs, we ask whether or not deep internal mixing occurs in red giants or if in fact the compositions come from the primordial interstellar medium or previous generations of stars. It has been discovered that as a star evolves up the red giant branch, the surface carbon abundance decreases, which is evidence of deep internal mixing. We questioned whether these processes also affect O or Na abundance as a star evolves. We collected measurement data of red giants from GCs out of academic journals and sorted the data into catalogs. Then, we plotted the catalogs into figures, comparing surface O and Na each with stellar luminosity. Statistical tests were ran to quantify the amount of correlation between the variables. Out of 27 GCs, we concluded that eight show a positive correlation between Na and luminosity, and two show a negative correlation between O and luminosity. Properties of GCs were compared to determine if chemical distribution in stars depends on GCs as the self-enrichment scenario suggests. We created histograms of sodium distribution to test for bimodality to examine if there are separate trends in each GC. In six GCs, two different sequences of red giants appear for Na versus luminosity, suggesting evidence that the depth of mixing may differ among each red giant in a GC. This study has provided new evidence that the changing chemical abundances on the surfaces of red giants can be due to stellar evolutionary effects and deep internal mixing, which may not necessarily depend on the GC and may differ in depth among each red giant. Through this study, we learn more about stellar evolution which will eventually help us understand the origins of our universe. Most of this work was carried out by high school students working under the auspices of

Human wound colonization by Lucilia eximia and Chrysomya rufifacies (Diptera: Calliphoridae): myiasis, perimortem, or postmortem colonization?

Science.gov (United States)

Sanford, Michelle R; Whitworth, Terry L; Phatak, Darshan R

2014-05-01

The infestation of human or animal tissues by fly larvae has been given distinctive terminology depending on the timing and location of colonization. Wounds and orifices colonized by Diptera in a living human or animal are typically referred to as myiasis. When the colonization occurs after death, it is referred to as postmortem colonization and can be used to estimate the minimum postmortem interval. What happens when the human, as in the case presented here, has a necrotic limb while the human remains alive, at least for a short period of time? The case presented here documents perimortem wound colonization by Lucilia eximia (Wiedemann) and Chrysomya rufifacies (Macquart) and the considerations for approximating development temperatures and estimating the time of colonization (TOC). This represents the first record of L. eximia in human myiasis in the United States and the first record of the co-occurrence of L. eximia and C. rufifacies in human myiasis in the United States. The TOC was estimated using both ambient and body temperature. Insect colonization before death complicates the estimation of TOC and minimum postmortem interval and illustrates the problem of temperature approximation in forensic entomology casework.

On the Radii of Close-in Giant Planets.

Science.gov (United States)

Burrows; Guillot; Hubbard; Marley; Saumon; Lunine; Sudarsky

2000-05-01

The recent discovery that the close-in extrasolar giant planet HD 209458b transits its star has provided a first-of-its-kind measurement of the planet's radius and mass. In addition, there is a provocative detection of the light reflected off of the giant planet tau Bootis b. Including the effects of stellar irradiation, we estimate the general behavior of radius/age trajectories for such planets and interpret the large measured radii of HD 209458b and tau Boo b in that context. We find that HD 209458b must be a hydrogen-rich gas giant. Furthermore, the large radius of a close-in gas giant is not due to the thermal expansion of its atmosphere but to the high residual entropy that remains throughout its bulk by dint of its early proximity to a luminous primary. The large stellar flux does not inflate the planet but retards its otherwise inexorable contraction from a more extended configuration at birth. This implies either that such a planet was formed near its current orbital distance or that it migrated in from larger distances (>/=0.5 AU), no later than a few times 107 yr of birth.

Endoscopic Removal of a Giant Gastric Bezoar in a Gastric pouch Diverticulum

Science.gov (United States)

2017-08-15

the bezoar was noted to be hard , requiring a tooth forcep to penetrate the outer shell. This maneuver was followed by transection of the bezoars into...of the grinding mechanism. Our patient had multiple risk factors to include post-surgical anatomy of gastric pouch, compounded by formation of a...It should be noted that certain phytobezoars (eg. Persimmons) are often resistant to chemical dissolution because of their hard consistency

Imaging of total colonic Hirschsprung disease

International Nuclear Information System (INIS)

Stranzinger, Enno; DiPietro, Michael A.; Strouse, Peter J.; Teitelbaum, Daniel H.

2008-01-01

Hirschsprung disease (HD) is a functional obstruction of the bowel caused by the absence of intrinsic enteric ganglion cells. The diagnosis of total colonic HD (TCHD) based on contrast enemas is difficult in newborns because radiological findings vary. To evaluate the radiographic and contrast enema findings in patients with pathologically proven TCHD. From 1966 to 2007, 17 records from a total of 31 patients with TCHD were retrospectively evaluated for diameter and shape of the colon, diameter of the small bowel, bowel wall contour, ileal reflux, abdominal calcifications, pneumoperitoneum, filling defects, transitional zones and rectosigmoid index. Three colonic patterns of TCHD were found: microcolon, question-mark-shape colon and normal caliber colon. Additional findings included spasmodic colon, ileal reflux, delayed evacuation and abdominal calcifications. Colonic transitional zones were found in eight patients with TCHD. The diagnosis of TCHD is difficult to establish by contrast enema studies. The length of the aganglionic small bowel and the age of the patient can influence the radiological findings in TCHD. The transitional zone and the rectosigmoid index can be false-positive in TCHD. The colon can appear normal. Consider TCHD if the contrast enema study is normal but the patient remains symptomatic and other causes of distal bowel obstruction have been excluded. (orig.)

ARE GIANT TORNADOES THE LEGS OF SOLAR PROMINENCES?

Energy Technology Data Exchange (ETDEWEB)

Wedemeyer, Sven; Scullion, Eamon; Rouppe van der Voort, Luc; Bosnjak, Antonija [Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029 Blindern, NO-0315 Oslo (Norway); Antolin, Patrick, E-mail: sven.wedemeyer@astro.uio.no [Centre for Mathematical Plasma Astrophysics, Department of Mathematics, KU Leuven, Celestijnenlaan 200B, bus 2400, B-3001 Leuven (Belgium)

2013-09-10

Observations in the 171 A channel of the Atmospheric Imaging Assembly of the space-borne Solar Dynamics Observatory show tornado-like features in the atmosphere of the Sun. These giant tornadoes appear as dark, elongated, and apparently rotating structures in front of a brighter background. This phenomenon is thought to be produced by rotating magnetic field structures that extend throughout the atmosphere. We characterize giant tornadoes through a statistical analysis of properties such as spatial distribution, lifetimes, and sizes. A total number of 201 giant tornadoes are detected in a period of 25 days, suggesting that, on average, about 30 events are present across the whole Sun at a time close to solar maximum. Most tornadoes appear in groups and seem to form the legs of prominences, thus serving as plasma sources/sinks. Additional H{alpha} observations with the Swedish 1 m Solar Telescope imply that giant tornadoes rotate as a structure, although they clearly exhibit a thread-like structure. We observe tornado groups that grow prior to the eruption of the connected prominence. The rotation of the tornadoes may progressively twist the magnetic structure of the prominence until it becomes unstable and erupts. Finally, we investigate the potential relation of giant tornadoes to other phenomena, which may also be produced by rotating magnetic field structures. A comparison to cyclones, magnetic tornadoes, and spicules implies that such events are more abundant and short-lived the smaller they are. This comparison might help to construct a power law for the effective atmospheric heating contribution as a function of spatial scale.

ARE GIANT TORNADOES THE LEGS OF SOLAR PROMINENCES?

International Nuclear Information System (INIS)

Wedemeyer, Sven; Scullion, Eamon; Rouppe van der Voort, Luc; Bosnjak, Antonija; Antolin, Patrick

2013-01-01

Observations in the 171 Å channel of the Atmospheric Imaging Assembly of the space-borne Solar Dynamics Observatory show tornado-like features in the atmosphere of the Sun. These giant tornadoes appear as dark, elongated, and apparently rotating structures in front of a brighter background. This phenomenon is thought to be produced by rotating magnetic field structures that extend throughout the atmosphere. We characterize giant tornadoes through a statistical analysis of properties such as spatial distribution, lifetimes, and sizes. A total number of 201 giant tornadoes are detected in a period of 25 days, suggesting that, on average, about 30 events are present across the whole Sun at a time close to solar maximum. Most tornadoes appear in groups and seem to form the legs of prominences, thus serving as plasma sources/sinks. Additional Hα observations with the Swedish 1 m Solar Telescope imply that giant tornadoes rotate as a structure, although they clearly exhibit a thread-like structure. We observe tornado groups that grow prior to the eruption of the connected prominence. The rotation of the tornadoes may progressively twist the magnetic structure of the prominence until it becomes unstable and erupts. Finally, we investigate the potential relation of giant tornadoes to other phenomena, which may also be produced by rotating magnetic field structures. A comparison to cyclones, magnetic tornadoes, and spicules implies that such events are more abundant and short-lived the smaller they are. This comparison might help to construct a power law for the effective atmospheric heating contribution as a function of spatial scale

Giant resonances in free atoms and in clusters

International Nuclear Information System (INIS)

Brechignac, C.; Connerade, J.P.

1994-01-01

A review of recent developments in the study of giant resonances in free atoms and in clusters is presented, with particular emphasis on the transition from free atoms to atoms in the condensed phase. Giant resonances in alkali and related metallic clusters due to the excitation of closed shells of delocalized electrons are also reviewed and the relation between different types of collective oscillations is discussed. (author)

Giant left atrium encountered during right-sided thoracentesis

Directory of Open Access Journals (Sweden)

Rashmi Advani

Full Text Available Giant left atrium is an uncommon pathology to encounter during bedside chest ultrasound, but is an important structure to be aware of when considering thoracentesis. This cardiac structure could easily be mistaken for loculated pleural fluid. This case also supports growing evidence that expert users can safely perform thoracentesis without completely reversing therapeutic anticoagulation. Keywords: Giant left atrium, Thoracentesis, Rheumatic heart disease, Ultrasound

Emergency endovascular coiling of a ruptured giant splenic artery aneurysm

Directory of Open Access Journals (Sweden)

Erika Wernheden, MD

2017-12-01

Full Text Available Splenic artery aneurysms (SAAs are the third most common abdominal aneurysm. Endovascular treatment of SAAs is preferred, and coiling is the most commonly used technique. Ruptured giant (>5 cm SAAs are usually treated with open surgery including splenectomy. We present a rare case of a ruptured 15-cm giant SAA in an 84-year-old woman treated successfully with emergency endovascular coiling. To our knowledge, this is one of the few reports of emergency endovascular treatment for ruptured giant SAA.

Colon and rectal cancer

International Nuclear Information System (INIS)

Saldombide, L.; Cordoba, A.

2010-01-01

This study is about the diagnosis, therapy and monitoring of colon cancer. The techniques used are the endoscopy with biopsy in the pre and post operative colon surgery, abdominal ultrasound, chest X-ray studies of hemogram as well as liver and renal function

Necrotizing colitis associated with carcinoma of the colon

International Nuclear Information System (INIS)

Woo, Seong Ku; Lim, Jae Hoon; Kim, Soon Yong; Ahn, Chi Yul

1982-01-01

Necrotizing colitis associated with carcinoma of the colon, known also as obstructive colitis, is a disorder characterized by anulceration and inflammation of the colon proximal to an obstructive lesion, especially carcinoma of the rectosigmoid colon, and in rare instance, leads to acute gangrene of the colon. The authors analyzed radiologic findings in four cases of necrotizing colitis associated with carcinoma of the colon. Barium enema disclosed mucosal edema, nodular filling defects, irregularity of the colonic contour and typical thumbprinting appearance of involved colon proximal to an obstructing carcinoma of the colon. The mechanism of necrotizing colitis was briefly reviewed

Excitation of giant resonances through inelastic scattering

International Nuclear Information System (INIS)

Kailas, S.

1981-01-01

In the last few years, exciting developments have taken place in the study of giant resonances (GR). In addition to the already well known gjant dipole resonance (GDR), the presence of at least two more new GRs viz. giant quadrupole resonance (GQR) and giant monopole resonance (GMR) has been experimentally established. The systematics covering these GRs is found to be consistent with the theoretical expectation. Though the existence of higher multipoles has been predjcted by theory, so far only some of these have been found to be excited experimentally. Various probe particles - electrons, protons (polarized and unpolarized), light and heavy ions and pions - at different bombarding energies have been used to excite the GR region, primarily through the inelastic scattering process. Detailed experiments, looking at the decay modes of GR region, have also been performed. These studies have contributed significantly to a better understanding of the phenomenon of nuclear collective excitation. In this report, the current status of 'GR' research is reviewed. (author)

Gradients in giant branch morphology in the core of 47 Tucanae

Science.gov (United States)

Bailyn, Charles D.

1994-01-01

I describe an algorithm which uses the high spatial resolution of the Hubble Space Telescope to complement the high spatial-to-noise, approximately symmetric point response function, relatively large spatial coverage, and standard filters available from ground based images of crowded fields. Applying this technique to the central regions of the globular cluster 47 Tucanae, I find that the morphology of the giant branch in the core is significantly different from that in more distant regions (r approximately equals 5 to 10 core radii) of the cluster. In particular, there appear to be fewer bright giants in the core, along with an enhanced `asymptotic giant branch' (AGB) sequence. Depletion of giants has been observed in the cores of other dense clusters, and may be due to `stripping' of large stars by stellar encounters and/or mass transfer in binary systems. Central concentrations of true asymptotic giant branch stars are not expected to result from dynamical processes; possibly some of these stars may be evolved blue stragglers.

Unusual giant prostatic urethral calculus | Bello | Journal of Surgical ...

African Journals Online (AJOL)

Giant vesico-prostatic urethral calculus is uncommon. Urethral stones rarely form primarily in the urethra, and they are usually associated with urethral strictures, posterior urethral valve or diverticula. We report a case of a 32-year-old man with giant vesico-prostatic (collar-stud) urethral stone presenting with sepsis and ...

Fatal Toxoplasma gondii infection in the giant panda

Directory of Open Access Journals (Sweden)

2015-01-01

Full Text Available Toxoplasma gondii can infect nearly all warm-blooded animals. We report an acute fatal T. gondii infection in the endangered giant panda (Ailuropoda melanoleuca in a zoo in China, characterized by acute gastroenteritis and respiratory symptoms. T. gondii infection was confirmed by immunological and molecular methods. Multilocus nested PCR-RFLP revealed clonal type I at the SAG1 and c29-2 loci, clonal type II at the SAG2, BTUB, GRA6, c22-8, and L358 loci, and clonal type III at the alternative SAG2 and SAG3 loci, thus, a potential new genotype of T. gondii in the giant panda. Other possible pathogens were not detected. To our knowledge, this is the first report of clinical toxoplasmosis in a giant panda.

Waking the Sleeping Giant

NARCIS (Netherlands)

Ollenburger, Mary H.; Descheemaeker, Katrien; Crane, Todd A.; Sanogo, Ousmane M.; Giller, Ken E.

2016-01-01

The World Bank argued that West Africa's Guinea Savannah zone forms part of “Africa's Sleeping Giant,” where increases in agricultural production could be an engine of economic growth, through expansion of cultivated land in sparsely populated areas. The district of Bougouni, in southern Mali,

Giant peritoneal loose bodies

African Journals Online (AJOL)

2015-03-27

Mar 27, 2015 ... not be familiar with the entity, can potentially be confused with malignant or parasitic lesions. Familiarity with their characteristic computed tomographic ... preventing unnecessary surgical intervention in an asymptomatic patient.3,4 It is important to differentiate giant peritoneal loose bodies from lesions such ...

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.

Intracavitary drainage procedure for giant bullae in compromised patients.

Science.gov (United States)

Verma, R K; Nishiki, M; Mukai, M; Fujii, T; Kuranishi, F; Yoshioka, S; Ohtani, M; Dohi, K

1991-09-01

Two cases of giant bullae were treated by intracavitary suction and drainage procedure under local anesthesia because of the poor pulmonary function. After staged bullectomy, the patients returned to normal life. The first case was admitted to our intensive care unit (ICU). Tube drainage was performed in the giant bulla of the left lung immediately after admission. One month after recovery from right heart failure and mediastinal shift to the right side, bullectomy was performed using linear stapler. The patient was discharged 20 days later. The second case was admitted with severe dyspnea and bilateral giant bullae were noticed. We performed tube drainage for larger bulla of the left lung under local anesthesia. Two months later, bullectomy was performed on the right side, because the bulla on the left side became smaller and the general condition of the patient improved. The patient was discharged three months later on foot and has since been asymptomatic. Giant bulla is a well-established clinical entity which includes abnormal dilatation of various parts of the tracheo-bronchial tree and other discrete sacs originating from the interstitial portion of the lung. Giant bullae are frequently associated with marked dyspnea and emphysematous symptoms. However, these symptoms depend upon various factors: size, location, valvular mechanism, condition of the contiguous lung parenchyma and the changes that may take place in the intrathoracic pressure.

The Usefulness of Intraoperative Colonic Irrigation and Primary Anastomosis in Patients Requiring a Left Colon Resection.

Science.gov (United States)

Hong, Youngki; Nam, Soomin; Kang, Jung Gu

2017-06-01

The aim of this study is to assess the short-term outcome of intraoperative colonic irrigation and primary anastomosis and to suggest the usefulness of the procedure when a preoperative mechanical bowel preparation is inappropriate. This retrospective study included 38 consecutive patients (19 male patients) who underwent intraoperative colonic irrigation and primary anastomosis for left colon disease between January 2010 and December 2016. The medical records of the patients were reviewed to evaluate the patients' characteristics, operative data, and postoperative short-term outcomes. Twenty-nine patients had colorectal cancer, 7 patients had perforated diverticulitis, and the remaining 2 patients included 1 with sigmoid volvulus and 1 with a perforated colon due to focal colonic ischemia. A diverting loop ileostomy was created in 4 patients who underwent a low anterior resection. Complications occurred in 15 patients (39.5%), and the majority was superficial surgical site infections (18.4%). Anastomotic leakage occurred in one patient (2.6%) who underwent an anterior resection due sigmoid colon cancer with obstruction. No significant difference in overall postoperative complications and superficial surgical site infections between patients with obstruction and those with peritonitis were noted. No mortality occurred during the first 30 postoperative days. The median hospital stay after surgery was 15 days (range, 8-39 days). Intraoperative colonic irrigation and primary anastomosis seem safe and feasible in selected patients. This procedure may reduce the burden of colostomy in patients requiring a left colon resection with an inappropriate preoperative mechanical bowel preparation.

Amyand’s Hernia – Vermiform Appendix in an Inguinal Hernia: A Rare Finding

Directory of Open Access Journals (Sweden)

Prakash Kumar Sahoo

2017-10-01

Full Text Available A variety of surprises may spring up when the sac is opened in an inguinal hernia. Omentum, bowel diverticulum, ovary, fallopian tube, urinary bladder, large bowel, Meckel’s diverticulum or foreign bodies being the varied contents of a hernia sac. The presence of vermiform appendix in the hernia sac in an inguinal hernia is a rare finding. This condition has been named as “Amyand’s Hernia” in the honour of an English surgeon, Claudius Amyand. A diagnosis preoperatively is difficult and is most often made intraoperatively. We report here a 52-year-old patient who presented with acute intestinal obstruction due to an obstructed right sided inguinal hernia. A diagnosis of Amyand’s hernia was confirmed when on exploration appendix along with a part of ascending colon was found to be content of the sac along with a few loops of small bowel. The contents were reduced after checking the viability and Bassini’s repair was done. The patient had an uneventful postoperative period.

Impacts of temperature on giant panda habitat in the north Minshan Mountains.

Science.gov (United States)

Liu, Gang; Guan, Tianpei; Dai, Qiang; Li, Huixin; Gong, Minghao

2016-02-01

Understanding the impacts of meteorological factors on giant pandas is necessary for future conservation measures in response to global climate change. We integrated temperature data with three main habitat parameters (elevation, vegetation type, and bamboo species) to evaluate the influence of climate change on giant panda habitat in the northern Minshan Mountains using a habitat assessment model. Our study shows that temperature (relative importance = 25.1%) was the second most important variable influencing giant panda habitat excepting the elevation. There was a significant negative correlation between temperature and panda presence (ρ = -0.133, P pandas within the study area was 18-21°C, followed by 15-17°C and 22-24°C. The overall suitability of giant panda habitats will increase by 2.7%, however, it showed a opposite variation patterns between the eastern and northwestern region of the study area. Suitable and subsuitable habitats in the northwestern region of the study area, which is characterized by higher elevation and latitude, will increase by 18007.8 hm(2) (9.8% habitat suitability), while the eastern region will suffer a decrease of 9543.5 hm(2) (7.1% habitat suitability). Our results suggest that increasing areas of suitable giant panda habitat will support future giant panda expansion, and food shortage and insufficient living space will not arise as problems in the northwest Minshan Mountains, which means that giant pandas can adapt to climate change, and therefore may be resilient to climate change. Thus, for the safety and survival of giant pandas in the Baishuijiang Reserve, we propose strengthening the giant panda monitoring program in the west and improving the integrity of habitats to promote population dispersal with adjacent populations in the east.

Unilateral giant cell lesion of the jaw in Noonan syndrome.

Science.gov (United States)

Eyselbergs, M; Vanhoenacker, F; Hintjens, J; Dom, M; Devriendt, K; Van Dijck, H

2014-01-01

Noonan syndrome (NS) is an etiologically heterogeneous disorder caused by mutations in the RAS-MAPK signaling pathway. Noonan-Like/Multiple Giant Cell Lesion (NL/MGCL) syndrome is initially described as the occurrence of multiple gnathic giant cell lesions in patients with phenotypic features of NS. Nowadays, NS/MGCL syndrome is considered a variant of the NS spectrum rather than a distinct entity. We report the case of a 14-year-old female patient carrying a SOS1 mutation with a unilateral giant cell lesion of the right mandible. Cross-sectional imaging such as CT and MRI are not specific for the diagnosis of oral giant cell lesions. Nonetheless, intralesional scattered foci of low SI on T2-WI, corresponding to hemosiderin deposits due to hemorrhage, can help the radiologist in narrowing down the differential diagnosis of gnathic lesions in patients with NS.

Acute pseudo-obstruction of the colon

International Nuclear Information System (INIS)

Beese, M.; Heller, M.

1988-01-01

The radiological correlate to the pseudo-obstruction of the colon is not specific, but it does supply a pointer to the disease of it shows dilation of the caecum, colon ascendens and colon transversum with air-pockets and reflected imaging as well as a usually not dilated colon descendens with remarkably little air. To make the diagnosis quite sure we must exclude intestinal obstruction by using X-ray contrast media or by coloscopy. (orig./GDG) [de

Histopathological changes induced by acute toxicity of mercuric chloride on the air-breathing organ (branchial diverticulum) of the life-fish Heteropneustes (= Saccobranchus) fossilis (BLOCH)

Energy Technology Data Exchange (ETDEWEB)

Rajan, M.T. (Histochemistry and Histopathology Lab., Dept. of Zoology, Banaras Hindu Univ., Varanasi (India)); Banerjee, T.K. (Histochemistry and Histopathology Lab., Dept. of Zoology, Banaras Hindu Univ., Varanasi (India))

1993-01-01

Toxicity induced by 0.3 ppm (96 h LC[sub 50] value) mercuric chloride solution on the histomorphology of the innerlining of the air breathing organ (branchial diverticulum) of Heteropneustes fossilis has been described. The outer cell layers of the epithelial lining show cyclic necrosis leading to shedding with ultimate haemorrhage and drainage of blood into the lumen causing decrease in the number of blood islets. Simultaneously the epithelium regenerates causing hyperplasia of its cells and increased gas diffusion distance impairing normal aerial respiration. Also the number of foldings decreases and the secondary lamella like structures fuse together. This results in smoothening of the inner lining of the air sac. Later reappearance of the blood islets, secondary lamellae and foldings of the inner lining are observed along with the repair of the epithelium. Damage of the repaired inner lining follows again. (orig.)

Mimivirus: leading the way in the discovery of giant viruses of amoebae.

Science.gov (United States)

Colson, Philippe; La Scola, Bernard; Levasseur, Anthony; Caetano-Anollés, Gustavo; Raoult, Didier

2017-04-01

The accidental discovery of the giant virus of amoeba - Acanthamoeba polyphaga mimivirus (APMV; more commonly known as mimivirus) - in 2003 changed the field of virology. Viruses were previously defined by their submicroscopic size, which probably prevented the search for giant viruses, which are visible by light microscopy. Extended studies of giant viruses of amoebae revealed that they have genetic, proteomic and structural complexities that were not thought to exist among viruses and that are comparable to those of bacteria, archaea and small eukaryotes. The giant virus particles contain mRNA and more than 100 proteins, they have gene repertoires that are broader than those of other viruses and, notably, some encode translation components. The infection cycles of giant viruses of amoebae involve virus entry by amoebal phagocytosis and replication in viral factories. In addition, mimiviruses are infected by virophages, defend against them through the mimivirus virophage resistance element (MIMIVIRE) system and have a unique mobilome. Overall, giant viruses of amoebae, including mimiviruses, marseilleviruses, pandoraviruses, pithoviruses, faustoviruses and molliviruses, challenge the definition and classification of viruses, and have increasingly been detected in humans.

CASE REPORT: A GIANT URINARY BLADDER STONE IN A ...

African Journals Online (AJOL)

A vesical calculus weighing more than 100g is categorized as a giant urinary bladder stone. Male preponderance for urinary bladder calculi is well known. A rare case of a giant urinary bladder calculus weighing 1200g and occurring in a female patient is reported. The stone was removed by open vesicolithotomy.

Malignant Giant Cell Tumour of Bone with Axillary Metastasis

African Journals Online (AJOL)

2002-06-06

Jun 6, 2002 ... SUMMARY. Giant Cell Tumour of bone is a typically benign and solitary tumour. However, multiple lesions have been described and 5-10% of lesions may be malignant. We present a case of a malignant giant cell tumour of the distal radius with metastasis to the ipsilateral axilla (an uncommon location).

Atypical visual loss in giant cell arteritis

DEFF Research Database (Denmark)

Thystrup, Jan Deichmann; Knudsen, G M; Mogensen, A M

1994-01-01

Three patients with atypical ocular involvement due to histologically verified giant cell arteritis are reported. Prior to diagnosis, the first patient had periods of amaurosis fugax. He presented with normal vision. In spite of high-dose systemic corticosteroid therapy, he became blind in the te......Three patients with atypical ocular involvement due to histologically verified giant cell arteritis are reported. Prior to diagnosis, the first patient had periods of amaurosis fugax. He presented with normal vision. In spite of high-dose systemic corticosteroid therapy, he became blind...

The possibility of giant dielectric materials for multilayer ceramic capacitors.

Science.gov (United States)

Ishii, Tatsuya; Endo, Makoto; Masuda, Kenichiro; Ishida, Keisuke

2013-02-11

There have been numerous reports on discovery of giant dielectric permittivity materials called internal barrier layer capacitor in the recent years. We took particular note of one of such materials, i.e., BaTiO 3 with SiO 2 coating. It shows expressions of giant electric permittivity when processed by spark plasma sintering. So we evaluated various electrical characteristics of this material to find out whether it is applicable to multilayer ceramic capacitors. Our evaluation revealed that the isolated surface structure is the sole cause of expressions of giant dielectric permittivity.

Colonic motility and enema spreading

International Nuclear Information System (INIS)

Hardy, J.G.; Wood, E.; Clark, A.G.; Reynolds, J.R.; Queen's Medical Centre, Nottingham

1986-01-01

Radiolabelled enema solution was administered to eight healthy subjects, both in fasted and fed states. Enema spreading was monitored over a 4-h period using gamma scintigraphy and colonic motility was recorded simultaneously using a pressure sensitive radiotelemetry capsule. The rate and extent of enema dispersion were unaffected by eating. Spreading could be correlated with colonic motility and was inhibited by aboral propulsion of the colonic contents. (orig.)

Primary closure in colon trauma.

Science.gov (United States)

Salinas-Aragón, Luis Enrique; Guevara-Torres, Lorenzo; Vaca-Pérez, Enrique; Belmares-Taboada, Jaime Arístides; Ortiz-Castillo, Fátima de Guadalupe; Sánchez-Aguilar, Martín

2009-01-01

Primary repair of colon injuries is an accepted therapeutic option; however, controversy persists regarding its safety. Our objective was to report the evolution and presence of complications in patients with colon injury who underwent primary closure and to determine if the time interval (>6 h), degree of injury, contamination, anatomic site injured, PATI (Penetrating Abdominal Trauma Index) >25, and the presence of other injuries in colon trauma are associated with increased morbidity and mortality. This was a prospective, observational, longitudinal and descriptive study conducted at the Central Hospital "Dr. Ignacio Morones Prieto," San Luis Potosí, Mexico, from January 1, 2003 to December 31, 2007. We included patients with abdominal trauma with colon injury subjected to surgical treatment. chi(2) was used for basic statistical analysis. There were 481 patients with abdominal trauma who underwent surgery; 77(16.1%) had colon injury. Ninety percent (n = 69) were treated in the first 6 h; 91% (n = 70) were due to penetrating injuries, and gunshot wound accounted for 48% (n = 37). Transverse colon was the most frequently injured (38%) (n = 29). Grade I and II injuries accounted for 75.3% (n = 58). Procedures included primary repair (76.66 %) (n = 46); resection with anastomosis (8.3%) (n = 5); and colostomy (15%) (n = 9). Associated injuries were present in 76.6% (n = 59). There was some degree of contamination in 85.7% (n = 66); 82.8% (58) had PATI colon injury. Primary repair is a safe procedure for treatment of colon injuries. Patients with primary repair had lower morbidity (p <0.009). Surgery during the first 6 h (p <0.006) and in hemodynamically stable patients (p <0.014) had a lower risk of complications.

Infrared colours and inferred masses of metal-poor giant stars in the Keplerfield

Science.gov (United States)

Casey, A. R.; Kennedy, G. M.; Hartle, T. R.; Schlaufman, Kevin C.

2018-05-01

Intrinsically luminous giant stars in the Milky Way are the only potential volume-complete tracers of the distant disk, bulge, and halo. The chemical abundances of metal-poor giants also reflect the compositions of the earliest star-forming regions, providing the initial conditions for the chemical evolution of the Galaxy. However, the intrinsic rarity of metal-poor giants combined with the difficulty of efficiently identifying them with broad-band optical photometry has made it difficult to exploit them for studies of the Milky Way. One long-standing problem is that photometric selections for giant and/or metal-poor stars frequently include a large fraction of metal-rich dwarf contaminants. We re-derive a giant star photometric selection using existing public g-band and narrow-band DDO51photometry obtained in the Keplerfield. Our selection is simple and yields a contamination rate of main-sequence stars of ≲1% and a completeness of about 80 % for giant stars with Teff ≲ 5250 K - subject to the selection function of the spectroscopic surveys used to estimate these rates, and the magnitude range considered (11 ≲ g ≲ 15). While the DDO51filter is known to be sensitive to stellar surface gravity, we further show that the mid-infrared colours of DDO51-selected giants are strongly correlated with spectroscopic metallicity. This extends the infrared metal-poor selection developed by Schlaufman & Casey, demonstrating that the principal contaminants in their selection can be efficiently removed by the photometric separation of dwarfs and giants. This implies that any similarly efficient dwarf/giant discriminant (e.g., Gaiaparallaxes) can be used in conjunction with WISEcolours to select samples of giant stars with high completeness and low contamination. We employ our photometric selection to identify three metal-poor giant candidates in the Keplerfield with global asteroseismic parameters and find that masses inferred for these three stars using standard

Bacterial colonization of colonic crypt mucous gel and disease activity in ulcerative colitis.

LENUS (Irish Health Repository)

Rowan, Fiachra

2012-02-01

OBJECTIVE: To optimize total bacterial 16S rRNA quantification in microdissected colonic crypts in healthy controls and patients with ulcerative colitis (UC) and to characterize the findings with disease activity. BACKGROUND: Microscopic and molecular techniques have recently converged to allow bacterial enumeration in remote anatomic locations [eg, crypt-associated mucous gel (CAMG)]. The aims of this study were to combine laser capture microdissection (LCM) and 16S rRNA-based quantitative polymerase chain reaction (qPCR) to determine total bacterial copy number in CAMG both in health and in UC and to characterize the findings with disease activity. METHODS: LCM was used to microdissect CAMG from colonic mucosal biopsies from controls (n = 20) and patients with acute (n = 10) or subacute (n = 10) UC. Pan-bacterial 16S rRNA copy number per millimeter square in samples from 6 locations across the large bowel was obtained by qPCR using Desulfovibrio desulfuricans as a reference strain. Copy numbers were correlated with the UC disease activity index (UCDAI) and the simple clinical colitis activity index (SCCAI). RESULTS: Bacterial colonization of CAMG was detectable in all groups. Copy numbers were significantly reduced in acute UC. In subacute colitis, there was a positive correlation between copy number and UCDAI and SCCAI in the ascending, transverse and sigmoid colon. CONCLUSIONS: This study describes a sensitive method of quantitatively assessing bacterial colonization of the colonic CAMG. A positive correlation was found between CAMG bacterial load and subacute disease activity in UC, whereas detectable bacterial load was reduced in acute UC.

Multidetector CT of the colon

International Nuclear Information System (INIS)

Luboldt, W.; Hoepffner, N.; Holzer, K.

2003-01-01

Multidetector technology, enabling faster imaging, higher spatial resolution and reduction in radiation dose, increases the role of CT in colonic diagnostic. The higher spatial resolution in the z-direction also changes the way to analyze the images. Instead of reading axial sections, now the colon can be systematically assessed in 3D by scrolling through multiplanar reconstructions or in CT colonography by virtual endoscopy. With ongoing improvements in computer-aided diagnosis CT colonography becomes an alternative to fiberoptic colonocopy for screening (http://www.multiorganscreening.org). In this article we propose a CT examination protocol for the colon, describe the typical imaging findings of different colonic diseases, and summarize the current status of CT colonography. (orig.)

Factors affecting genotyping success in giant panda fecal samples.

Science.gov (United States)

Zhu, Ying; Liu, Hong-Yi; Yang, Hai-Qiong; Li, Yu-Dong; Zhang, He-Min

2017-01-01

Fecal samples play an important role in giant panda conservation studies. Optimal preservation conditions and choice of microsatellites for giant panda fecal samples have not been established. In this study, we evaluated the effect of four factors (namely, storage type (ethanol (EtOH), EtOH -20 °C, 2-step storage medium, DMSO/EDTA/Tris/salt buffer (DETs) and frozen at -20 °C), storage time (one, three and six months), fragment length, and repeat motif of microsatellite loci) on the success rate of microsatellite amplification, allelic dropout (ADO) and false allele (FA) rates from giant panda fecal samples. Amplification success and ADO rates differed between the storage types. Freezing was inferior to the other four storage methods based on the lowest average amplification success and the highest ADO rates ( P panda fecal preservation in microsatellite studies, and EtOH and the 2-step storage medium should be chosen on priority for long-term storage. We recommend candidate microsatellite loci with longer repeat motif to ensure greater genotyping success for giant panda fecal studies.

Vasohibin-1 suppresses colon cancer

OpenAIRE

Liu, Shuai; Han, Bing; Zhang, Qunyuan; Dou, Jie; Wang, Fang; Lin, Wenli; Sun, Yuping; Peng, Guangyong

2015-01-01

Vasohibin-1 (VASH1) is an endogenous angiogenesis inhibitor. However, the clinical relevance of VASH1 in colon cancer and its regulations on cancer angiogenesis and cancer cell biological characteristics are still unknown. Here we showed that stromal VASH1 levels were negatively correlated with tumor size, advanced clinical stage and distant metastases in colon cancer patients. Overexpression of VASH1 in colon cancer cells induced apoptosis and senescence, inhibiting cancer cell growth and co...

Magnetic fields in starspots on late-type giants

International Nuclear Information System (INIS)

Jahn, K.

1985-01-01

Computations of models of magnetic starspots on cool active giants show that the value of the magnetic intensity in spots is generally of the order of one kilogauss, although in larger spots the field can be as weak as a few hundred gauss. It is also argued, that spots on giants qualitatively differ from those on late-type dwarfs, since they cannot be too large. The largest individual spots can cover at most about one percent of a stellar hemisphere. This is in a very good agreement with earlier suggestions based on observations of spotted giants. The assumption that spots are the regions of the strongest magnetic field allows to discuss recent attempts of detection of the magnetic field on late-type giants. Polarimetric measurements most probably cannot be successful, due to a small field strength and a complex topology of the field. It is shown that even if a whole surface was covered by spots with relatively strong field, the resulting not longitudinal field would be as weak as a few gauss. Also methods independent of polarimetric measurements, based on the analysis of Zeeman broadening, generally are not sensitive enough to detect the magnetic field on giants, even in spots. λ And is discussed as an example. The comparison of models of spots computed for that stars with photometric observations suggests, that a dark region on λ And consists of hundreds of small spots (each of them smaller than about 0.1% of the hemisphere), in which the magnetic intensity cannot exceed about 900 gauss, and most probably is even smaller. 23 refs., 4 figs., 4 tabs. (author)

Giant magnons under NS-NS and Melvin fields

International Nuclear Information System (INIS)

Huang, W.-H.

2006-01-01

The giant magnon is a rotating spiky string configuration which has the same dispersion relation between the energy and angular momentum as that of a spin magnon. In this paper we investigate the effects of the NS-NS and Melvin fields on the giant magnon. We first analyze the energy and angular momenta of the two-spin spiky D-string moving on the AdS 3 x S 1 with the NS-NS field. Due to the infinite boundary of the AdS spacetime the D-string solution will extend to infinity and it appears the divergences. After adding the counter terms we obtain the dispersion relation of the corresponding giant magnon. The result shows that there will appear a prefactor before the angular momentum, in addition to some corrections in the sine function. We also see that the spiky profile of a rotating D-string plays an important role in mapping it to a spin magnon. We next investigate the energy and angular momentum of the one-spin spiky fundamental string moving on the R x S 2 with the electric or magnetic Melvin field. The dispersion relation of the corresponding deformed giant magnon is also obtained. We discuss some properties of the correction terms and their relations to the spin chain with deformations

Breast carcinoma with osteoclast-like giant cells

DEFF Research Database (Denmark)

Gjerdrum, L M; Lauridsen, M C; Sørensen, Flemming Brandt

2001-01-01

Primary carcinoma with osteoclast-like giant cells is a very rare tumour of the female breast. The clinical course, histological, immunohistochemical and ultrastructural features of 61 cases of invasive duct carcinoma with osteoclast-like multinucleated giant cells (OMGCs) are reviewed and a new...... in the literature have shown that 86% of patients with these tumours are still alive after 5 years. Histologically, these tumours are invasive ductal carcinomas with OMGCs next to the neoplastic glands and within their lumen. Signs of recent and past haemorrhage are ubiquitously present in the highly vascularized...

Standard globular cluster giant branches in the (MI/V-IO) plane

International Nuclear Information System (INIS)

Da Costa, G.S.; Armandroff, T.E.

1990-01-01

CCD photometry in the V, I (Cousins) bandpasses is presented for a large number of giants in eight galactic globular clusters. The (V-I) O color of the giant branch accurately ranks clusters in metal abundance, and can accordingly be used to ascertain both metal abundances and abundance dispersions in old stellar populations. A relation is derived that yields the bolometric correction to the I magnitude for red giants as a function of (V-I) O color. With this relation, and the assumption of the LDZ distance scale, the bolometric magnitudes of the brightest red giants in the clusters were determined; good agreement is obtained with the predictions of stellar evolution theory for the luminosity of the He core flash. 63 refs

Fatal Toxoplasma gondii infection in the giant panda.

Science.gov (United States)

Ma, Hongyu; Wang, Zedong; Wang, Chengdong; Li, Caiwu; Wei, Feng; Liu, Quan

2015-01-01

Toxoplasma gondii can infect nearly all warm-blooded animals. We report an acute fatal T. gondii infection in the endangered giant panda (Ailuropoda melanoleuca) in a zoo in China, characterized by acute gastroenteritis and respiratory symptoms. T. gondii infection was confirmed by immunological and molecular methods. Multilocus nested PCR-RFLP revealed clonal type I at the SAG1 and c29-2 loci, clonal type II at the SAG2, BTUB, GRA6, c22-8, and L358 loci, and clonal type III at the alternative SAG2 and SAG3 loci, thus, a potential new genotype of T. gondii in the giant panda. Other possible pathogens were not detected. To our knowledge, this is the first report of clinical toxoplasmosis in a giant panda. © H. Ma et al., published by EDP Sciences, 2015.

Giant fibroadenoma presenting like fungating breast cancer in a ...

African Journals Online (AJOL)

Background: Giant fibroadenoma of the breast is a rare benign breast tumour which seldom grows to a giant size, it is even rarer for this benign tumour to grow rapidly, ulcerate spontaneously and present like a fungating breast tumour in a way mimicking breast cancer. Case presentation: This is a presentation of a 14 year ...

from the Giant Panda

African Journals Online (AJOL)

STORAGESEVER

2009-06-03

Jun 3, 2009 ... 1College of Life Science, China West Normal University, 44# Yuying Road, 637002, Nanchong, China. 2Zhan Jiang educational ... in Escherichia coli and the RPS28 protein fusioned with the N-terminally GST -tagged protein gave rise ... long Conservation Center of the Giant Panda, Sichuan, China. The.

Giant SEPs and SEP-recovery function in Unverricht-Lundborg disease.

Science.gov (United States)

Visani, E; Canafoglia, L; Rossi Sebastiano, D; Agazzi, P; Panzica, F; Scaioli, V; Ciano, C; Franceschetti, S

2013-05-01

To evaluate the relationship between sensory hyperexcitability as revealed by giant SEPs and the SEP recovery function (SEP-R) in a series of patient with progressive myoclonic epilepsy of Unverricht-Lundborg type, identified as epilepsy, progressive myoclonic 1A (EPM1A), MIM #254800. We evaluated SEPs by applying median nerve stimuli and SEP-R using paired stimuli at inter-stimulus intervals (ISIs) of between 20 and 600 ms in 25 patients and 20 controls. The SEPs were considered "giant" if the N20P25 and P25N33 amplitudes exceeded normal mean values by +3SD. During the paired-stimulus protocol, the SEPs elicited by the second stimulus (S2) were detectable at all ISIs but consistently suppressed in the 13 patients with giant SEPs reflecting a significantly delayed SEP-R. Maximal suppression roughly corresponded to the plateau of a broad middle latency (>100 ms) wave pertaining to the S1 response. The cortical processing dysfunction generating giant SEPs in EPM1A patients consistently combines with a long-lasting suppression of hyperexcitability that leads to a delayed giant SEP-R without obstructing the response to incoming stimuli. The delayed SEP-R is not due to true inhibition but the suppression of aberrant hyper-synchronisation sustaining giant SEPs. A broad middle latency SEP component adds a significantly suppressive effect. This suggests that cortico-subcortical circuitries contribute to both the gigantism and the delayed SEP-R. Copyright © 2012 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.

The first skull of the earliest giant panda

OpenAIRE

Jin, Changzhu; Dong, Wei; Hunt, Jr., Robert M.; Liu, Jinyi; Jaeger, Marc; Zhu, Qizhi

2007-01-01

Fossils of the giant panda Ailuropoda (Order Carnivora, Family Ursidae) are largely isolated teeth, mandibles, and a few rare skulls, known from the late Pliocene to late Pleistocene in China and Southeast Asia. Much of this material represents a Pleistocene chronospecies, Ailuropoda baconi, an animal larger than the living giant panda, Ailuropoda melanoleuca. The earliest certain record of Ailuropoda is the late Pliocene chronospecies, Ailuropoda microta, smaller than either A. baconi or A. ...

New results on multiple excitations of giant resonances

International Nuclear Information System (INIS)

Mordechai, S.; Texas Univ., Austin, TX; Moore, C.F.

1993-01-01

Exotic excitations like the double giant dipole were predicted for many years but not observed experimentally until recently. Several experiments have been carried out at Los Alamos National laboratory to search for these new collective modes of the nucleus. The results discover two previously unobserved types of double giant resonances. This work presents the recent pion double charge exchange data and the analysis that support the existence of two such exotic vibrational nuclear modes

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)

Ecology of litterfall production of giant bamboo Dendrocalamus asper in a watershed area

Directory of Open Access Journals (Sweden)

A.G. Toledo Bruno

2017-12-01

Full Text Available Giant bamboo Dendrocalamus asper is recommended in environmental and livelihood programs in the Philippines due to its various ecological, economic and social benefits. However, there are limited data on the ecology of giant bamboo litterfall production, which contributes to soil nutrient availability. Bamboo also contributed in carbon sequestration. The study was conducted within the Taganibong Watershed in Bukidnon, Philippines. Nine litterfall traps measuring 1mx1m were established within the giant bamboo stand in the study area. Results show that giant bamboo litterfall is dominated by leaves. Biological characteristics of bamboo litterfall do no not influence litterfall production but temperature, wind speed and humidity correlate with the amount of litterfall. Findings of the study further revealed that fresh giant bamboo tissue contains high carbon content and the soil in the bamboo stand has higher organic matter than the open clearing. These data indicate the role of giant bamboo in carbon sequestration and soil nutrient availability.

DEEP MIXING IN EVOLVED STARS. II. INTERPRETING Li ABUNDANCES IN RED GIANT BRANCH AND ASYMPTOTIC GIANT BRANCH STARS

International Nuclear Information System (INIS)

Palmerini, S.; Busso, M.; Maiorca, E.; Cristallo, S.; Abia, C.; Uttenthaler, S.; Gialanella, L.

2011-01-01

We reanalyze the problem of Li abundances in red giants of nearly solar metallicity. After outlining the problems affecting our knowledge of the Li content in low-mass stars (M ≤ 3 M sun ), we discuss deep-mixing models for the red giant branch stages suitable to account for the observed trends and for the correlated variations of the carbon isotope ratio; we find that Li destruction in these phases is limited to masses below about 2.3 M sun . Subsequently, we concentrate on the final stages of evolution for both O-rich and C-rich asymptotic giant branch (AGB) stars. Here, the constraints on extra-mixing phenomena previously derived from heavier nuclei (from C to Al), coupled to recent updates in stellar structure models (including both the input physics and the set of reaction rates used), are suitable to account for the observations of Li abundances below A(Li) ≡ log ε(Li) ≅ 1.5 (and sometimes more). Also, their relations with other nucleosynthesis signatures of AGB phases (like the abundance of F, and the C/O and 12 C/ 13 C ratios) can be explained. This requires generally moderate efficiencies (M-dot -6 M sun yr -1 ) for non-convective mass transport. At such rates, slow extra mixing does not remarkably modify Li abundances in early AGB phases; on the other hand, faster mixing encounters a physical limit in destroying Li, set by the mixing velocity. Beyond this limit, Li starts to be produced; therefore, its destruction on the AGB is modest. Li is then significantly produced by the third dredge up. We also show that effective circulation episodes, while not destroying Li, would easily bring the 12 C/ 13 C ratios to equilibrium, contrary to the evidence in most AGB stars, and would burn F beyond the limits shown by C(N) giants. Hence, we do not confirm the common idea that efficient extra mixing drastically reduces the Li content of C stars with respect to K-M giants. This misleading appearance is induced by biases in the data, namely: (1) the difficulty

The magnetic fields at the surface of active single G-K giants

Science.gov (United States)

Aurière, M.; Konstantinova-Antova, R.; Charbonnel, C.; Wade, G. A.; Tsvetkova, S.; Petit, P.; Dintrans, B.; Drake, N. A.; Decressin, T.; Lagarde, N.; Donati, J.-F.; Roudier, T.; Lignières, F.; Schröder, K.-P.; Landstreet, J. D.; Lèbre, A.; Weiss, W. W.; Zahn, J.-P.

2015-02-01

Aims: We investigate the magnetic field at the surface of 48 red giants selected as promising for detection of Stokes V Zeeman signatures in their spectral lines. In our sample, 24 stars are identified from the literature as presenting moderate to strong signs of magnetic activity. An additional 7 stars are identified as those in which thermohaline mixing appears not to have occured, which could be due to hosting a strong magnetic field. Finally, we observed 17 additional very bright stars which enable a sensitive search to be performed with the spectropolarimetric technique. Methods: We use the spectropolarimeters Narval and ESPaDOnS to detect circular polarization within the photospheric absorption lines of our targets. We treat the spectropolarimetric data using the least-squares deconvolution method to create high signal-to-noise ratio mean Stokes V profiles. We also measure the classical S-index activity indicator for the Ca ii H&K lines, and the stellar radial velocity. To infer the evolutionary status of our giants and to interpret our results, we use state-of-the-art stellar evolutionary models with predictions of convective turnover times. Results: We unambiguously detect magnetic fields via Zeeman signatures in 29 of the 48 red giants in our sample. Zeeman signatures are found in all but one of the 24 red giants exhibiting signs of activity, as well as 6 out of 17 bright giant stars. However no detections were obtained in the 7 thermohaline deviant giants. The majority of the magnetically detected giants are either in the first dredge up phase or at the beginning of core He burning, i.e. phases when the convective turnover time is at a maximum: this corresponds to a "magnetic strip" for red giants in the Hertzsprung-Russell diagram. A close study of the 16 giants with known rotational periods shows that the measured magnetic field strength is tightly correlated with the rotational properties, namely to the rotational period and to the Rossby number Ro

Use of flow-diverting devices in fusiform vertebrobasilar giant aneurysms

DEFF Research Database (Denmark)

Ertl, L; Holtmannspötter, M; Patzig, M

2014-01-01

BACKGROUND AND PURPOSE: Fusiform vertebrobasilar giant aneurysms are a rare (... and imaging follow-up. In this article, we present our experience with the treatment of fusiform vertebrobasilar giant aneurysms by flow diverting stents. We aim to stimulate a discussion of the best management paradigm for this challenging aneurysm subtype. MATERIALS AND METHODS: We retrospectively...... identified 6 patients with fusiform vertebrobasilar giant aneurysms who had been treated with flow-diverting stents between October 2009 and March 2012 in our center. The available data were re-evaluated. The modified Rankin Scale score was assessed before intervention, during the stay in hospital...

The Lushan earthquake and the giant panda: impacts and conservation.

Science.gov (United States)

Zhang, Zejun; Yuan, Shibin; Qi, Dunwu; Zhang, Mingchun

2014-06-01

Earthquakes not only result in a great loss of human life and property, but also have profound effects on the Earth's biodiversity. The Lushan earthquake occurred on 20 Apr 2013, with a magnitude of 7.0 and an intensity of 9.0 degrees. A distance of 17.0 km from its epicenter to the nearest distribution site of giant pandas recorded in the Third National Survey was determined. Making use of research on the Wenchuan earthquake (with a magnitude of 8.0), which occurred approximately 5 years ago, we briefly analyze the impacts of the Lushan earthquake on giant pandas and their habitat. An earthquake may interrupt ongoing behaviors of giant pandas and may also cause injury or death. In addition, an earthquake can damage conservation facilities for pandas, and result in further habitat fragmentation and degradation. However, from a historical point of view, the impacts of human activities on giant pandas and their habitat may, in fact, far outweigh those of natural disasters such as earthquakes. Measures taken to promote habitat restoration and conservation network reconstruction in earthquake-affected areas should be based on requirements of giant pandas, not those of humans. © 2013 International Society of Zoological Sciences, Institute of Zoology/Chinese Academy of Sciences and Wiley Publishing Asia Pty Ltd.

Collective motion and giant resonances

International Nuclear Information System (INIS)

Wilhelmi, Z.; Kicinska-Habior, M.

1984-01-01

The report contains 15 papers devoted to problems of giant collective excitations of nuclei, heavy-ion induced reactions and their bearing on various aspects of nuclear structure. In some of them the numerical data are given. (A.S.)

Giant abdominal cystic lymphangioma

International Nuclear Information System (INIS)

Vazquez, V.; Florencio, I.; Boluda, F.

1996-01-01

We present a case of giant abdominal cystic lymphangioma in a 10-year-old boy. Despite numerous consultations with physicians to identify the underlying problem, it had originally been attributed to ascites of unknown cause. We review the characteristics of this lesion and the diagnostic features that aid in differentiating it from ascites

Colon in acute intestinal infection.

Science.gov (United States)

Guarino, Alfredo; Buccigrossi, Vittoria; Armellino, Carla

2009-04-01

The colon is actively implicated in intestinal infections not only as a target of enteric pathogens and their products but also as a target organ for treatment. In the presence of diarrhea, both of osmotic and secretory nature, the colon reacts with homeostatic mechanisms to increase ion absorption. These mechanisms can be effectively exploited to decrease fluid discharge. A model of intestinal infections using rotavirus (RV) in colonic cells was set up and used to define a dual model of secretory and osmotic diarrhea in sequence. Using this model, antidiarrheal drugs were tested, namely zinc and the enkephalinase inhibitor racecadotril. Zinc was able to decrease the enterotoxic activity responsible for secretory diarrhea. It also inhibited the cytotoxic effect of RV. The mechanism of zinc was related at least in part to the activation of MAPK activity, but also a direct antiviral effect was observed. Racecadotril showed a potent and selective inhibition of active secretion, being particularly effective in the first phase of RV diarrhea. The use of drugs active at the colonic level, therefore, offers effective options to treat intestinal infections in childhood. In addition, the colon is the natural site of colonic microflora, a target of probiotic therapy, which is the first line of approach recommended by the European Society for Paediatric Gastroenterology, Hepatology and Nutrition to treat infectious diarrhea.

Historical and Current Trends in Colon Trauma

Science.gov (United States)

Causey, Marlin Wayne; Rivadeneira, David E.; Steele, Scott R.

2012-01-01