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Sample records for carcinoma del tiroides

  1. Carcinoma papilar de tiroides en quiste tirogloso

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    MOLANO G,JULIÁN ANDRÉS; ROSSEL DE LA M,GONZALO; González P,Miguel; PLASS DEL C,INGRID

    2013-01-01

    Objetivo: Reportar un caso raro de carcinoma papilar en un quiste tirogloso y discutir su manejo. Paciente y Método: Un hombre de 72 años a quien se realizó un diagnóstico clínico de un quiste tirogloso, fue llevado a una cirugía de Sistrunk's y luego una tiroidectomía total ante la evidencia de cáncer papilar en el quiste tirogloso. Resultados: El examen histopatológico reveló un carcinoma papilar de tiroides en el quiste tirogloso y la glándula tiroides fue normal, el paciente permaneció li...

  2. An??lisis mediante micromatrices de tejido de marcadores inmunohistoqu??micos de utilidad en el diagn??stico diferencial del carcinoma diferenciado de tiroides

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    Merino Montes, Julio

    2012-01-01

    Los tumores malignos de la gl??ndula tiroides son las neoplasias m??s comunes de los ??rganos endocrinos y dentro de ellos los carcinomas diferenciados son los m??s frecuentes. No existe ning??n procedimiento diagn??stico capaz de distinguir entre ellos y los n??dulos tiroideos benignos, que afectan a un porcentaje muy alto de la poblaci??n general consider??ndose el m??todo m??s ??til la punci??n aspiraci??n con aguja fina (PAAF). A pesar de que es el procedimiento de elecci??n la PAAF tiene...

  3. Análisis mediante micromatrices de tejido de marcadores inmunohistoquímicos de utilidad en el diagnóstico diferencial del carcinoma diferenciado de tiroides

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    Merino Montes, Julio

    2013-01-01

    Los tumores malignos de la glándula tiroides son las neoplasias más comunes de los órganos endocrinos y dentro de ellos los carcinomas diferenciados son los más frecuentes. No existe ningún procedimiento diagnóstico capaz de distinguir entre ellos y los nódulos tiroideos benignos, que afectan a un porcentaje muy alto de la población general considerándose el método más útil la punción aspiración con aguja fina (PAAF). A pesar de que es el procedimiento de elección la PAAF tiene una serie de l...

  4. Taponamiento cardíaco secundario a carcinoma papilar esclerosante difuso de tiroides

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    Verónica Riva

    2011-12-01

    Full Text Available El carcinoma papilar, variante esclerosante difusa, corresponde al 2% de todos los carcinomas papilares de la tiroides. Se caracteriza por comprometer de manera difusa y bilateral a la glándula tiroides. Clínicamente se manifiesta con metástasis ganglionares y pulmonares, afectando predominantemente a mujeres jóvenes. Se describe un caso de taponamiento cardíaco como presentación inicial de un carcinoma papilar de tiroides variante esclerosante difusa. Una mujer de 32 años concurrió al servicio de emergencias médicas refiriendo epigastralgia y tos seca. Durante el examen físico se constató hipotensión arterial, taquicardia y ruidos cardíacos disminuidos. Se realizó un ecocardiograma, observándose derrame pericárdico. Por medio de una pericardiocentesis se obtuvo líquido pericárdico, cuyo análisis mostró células neoplásicas. Durante la evolución la paciente presentó recurrencia del derrame pericárdico por lo que se realizó una ventana pleuropericárdica, detectándose durante la cirugía una lesión nodular subpleural, la cual fue biopsiada e informada posteriormente como una metástasis de carcinoma papilar vinculable a origen tiroideo. Se realizó una tiroidectomía total con linfadenectomía cervical bilateral. El diagnóstico final fue carcinoma papilar, variante esclerosante difusa. Esta variante infiltra el tejido conectivo de los espacios interfoliculares, simulando una tiroiditis y se caracteriza por una permeación vascular temprana. En oposición a la variante clásica, la esclerosante difusa presenta mayor agresividad y mayor tasa de recurrencia. El carcinoma papilar de tiroides debe tenerse presente como diagnóstico diferencial en nuestro medio, en todas aquellas lesiones neoplásicas papilares metastásicas, más aún si se trata de mujeres jóvenes.

  5. Taponamiento cardíaco secundario a carcinoma papilar esclerosante difuso de tiroides

    OpenAIRE

    2011-01-01

    El carcinoma papilar, variante esclerosante difusa, corresponde al 2% de todos los carcinomas papilares de la tiroides. Se caracteriza por comprometer de manera difusa y bilateral a la glándula tiroides. Clínicamente se manifiesta con metástasis ganglionares y pulmonares, afectando predominantemente a mujeres jóvenes. Se describe un caso de taponamiento cardíaco como presentación inicial de un carcinoma papilar de tiroides variante esclerosante difusa. Una mujer de 32 años concurrió al servic...

  6. Duplicidad tiroidea y carcinoma papilar en un tiroides ectópico. Presentación de caso

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    José Alberto Puerto Lorenzo

    2012-05-01

    Full Text Available Se presenta una paciente con tumor palpable ubicado en línea media de la región anterior del cuello, encima del hueso hioides, diagnosticado inicialmente como quiste del conducto tirogloso. Se realizó estudio preliminar, tanto clínico, como radiológico y citológico de la lesión. Mediante cirugía por técnica convencional, se extrajo el tumor. La biopsia por parafina definió la existencia de tiroides con carcinoma papilar. Añadido a dicha condición, la paciente presentaba glándula tiroidea en ubicación normal. Se considera un caso curioso, donde se mezclan los conceptos de duplicidad tiroidea y tiroides ectópico, con la presencia en este último de un carcinoma papilar.

  7. Epidemiología del Cáncer de Tiroides.

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    Hernando Vargas Uricoechea

    2015-06-01

    Full Text Available El cáncer de tiroides hace parte de un amplio espectro de enfermedades con pronóstico variable; se considera que es el cáncer de origen endocrino más común, y su incidencia se ha incrementado de manera continua en las últimas tres décadas en todo el mundo. Esta tendencia está presente en todos los continentes, excepto África. Dicho cáncer es el quinto más frecuente en mujeres, y sólo en unos cuantos países su incidencia ha disminuido. Mundialmente, las tasas de incidencia de cáncer de tiroides pueden variar de manera amplia, con causas potenciales relacionadas con la raza, las diferencias étnicas, geográficas, o medioambientales como el exceso o la deficiencia de yodo, además de la exposición a la radiación. El cáncer de tiroides es el décimo sexto cáncer más frecuente en el mundo, con cerca de 298.000 casos nuevos diagnosticados en el año 2012 (2% del total. Los datos disponibles en Sudamérica –excepto algunos países– son escasos y dispersos; en países como Brasil, Chile y Colombia no existe una suficiente cobertura poblacional que asegure la obtención de datos confiables y completos de registros de cáncer, ni criterios universales que aseguren la recolección de datos de la ma- yoría de la población. No obstante, la creación de registros de cáncer basados en la población ha llevado a tener una visión más exacta del problema.

  8. Asociación sincrónica de carcinoma de paratiroides con tumor pardo mandibular y carcinoma papilar de tiroides

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    Jaime Alonso Reséndiz-Colosia; Sergio Arturo Rodríguez-Cuevas; Sinuhé Barroso-Bravo; José Francisco Gallegos-Hernández; Martín Hernández-San Juan; Fernando Gómez-Acosta

    2008-01-01

    Introducción: Los nódulos tiroideos en pacientes con hiperparatiroidismo primario son frecuentes, pero la asociación sincrónica de carcinoma de paratiroides y carcinoma papilar de tiroides es un evento poco común. Caso clínico: Paciente de 42 años de edad con tumor en región mandibular derecha y nódulo en la cara anterior de cuello que dependía del lóbulo derecho de tiroides. La biopsia por aspiración de la lesión en cavidad oral indicó lesión de células gigantes. Se identificó hipercalcemia ...

  9. Estudio de los factores pronosticadores de la sobrevida del cáncer diferenciado del tiroides

    OpenAIRE

    2011-01-01

    El objetivo de esta investigación fue estudiar la supervivencia y los factores del pronóstico del cáncer diferenciado del tiroides tratado y seguido por un período de observación prolongado. Pacientes y Método: En una cohorte histórica prospectiva de cáncer de tiroides diagnosticada por biopsia quirúrgica, se analizó las variables: género, edad en el momento del diagnóstico, semiología del bocio, histología, grado de diferenciación, extensión anatómica del tumor, la presencia de metástasis li...

  10. Taponamiento cardíaco secundario a carcinoma papilar esclerosante difuso de tiroides Metastatic cardiac tamponade as initial manifestation of papillary thyroid carcinoma

    OpenAIRE

    2011-01-01

    El carcinoma papilar, variante esclerosante difusa, corresponde al 2% de todos los carcinomas papilares de la tiroides. Se caracteriza por comprometer de manera difusa y bilateral a la glándula tiroides. Clínicamente se manifiesta con metástasis ganglionares y pulmonares, afectando predominantemente a mujeres jóvenes. Se describe un caso de taponamiento cardíaco como presentación inicial de un carcinoma papilar de tiroides variante esclerosante difusa. Una mujer de 32 años concurrió al servic...

  11. Tratamiento del cáncer por captura neutrónica de boro: Su aplicación al carcinoma indiferenciado de tiroides Boron neutron capture therapy applied to undifferentiated thyroid carcinoma

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    Mario A. Pisarev

    2006-12-01

    Full Text Available El cáncer indiferenciado de tiroides es un tumor muy agresivo, de muy mal pronóstico y sin tratamiento efectivo. La terapia por captura neutrónica de boro (BNCT podría ser una alternativa para el tratamiento de esta enfermedad. Se basa en la captación selectiva de boro por el tumor y su activación por un haz de neutrones. El boro activado libera un núcleo de litio-7 y una partícula alfa, las cuales tienen una alta transmisión linear de energía (linear energy transfer, LET y un alcance de 5-9 µm, destruyendo el tumor. En estudios previos hemos mostrado que la línea celular humana de cáncer indiferenciado de tiroides (ARO tiene una captación selectiva de borofenilalanina (10BPA tanto in vitro como después de ser implantada en ratones NIH nude. También demostramos en estos animales inyectados con BPA e irradiados con un haz de neutrones térmicos, un 100% de control sobre el crecimiento tumoral y un 50% de cura histológica. En trabajos posteriores mostramos que la porfirina 10BOPP tetrakis-carborane carboxylate ester de 2,4-bis-(a,b-dihydroxyethyl-deutero-porphyrin IX cuando es inyectada 5-7 días antes que el BPA se obtiene una concentración tumoral de boro de aproximadamente el doble que el BPA solo (45-38 ppm vs. 20 ppm. La posterior irradiación con neutrones mostró un 100% de remisión completa en animales con tumores cuyo volumen pre-tratamiento era de 50 mm³ o menor. Los perros padecen CIT espontáneo, con un comportamiento biológico similar al humano, y una captación selectiva de BPA, abriendo la posibilidad de su tratamiento por BNCT.Undifferentiated thyroid carcinoma (UTC is an aggressive tumor with a poor prognosis due to the lack of an effective treatment. Boron neutron capture therapy (BNCT is based on the selective uptake of boron by the tumor and its activation by a neutron beam, releasing lithium-7 and an alpha particle that will kill the tumor cells by their high linear energy transfer (LET. In previous

  12. Taponamiento cardíaco secundario a carcinoma papilar esclerosante difuso de tiroides Metastatic cardiac tamponade as initial manifestation of papillary thyroid carcinoma

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    Verónica Riva

    2011-12-01

    Full Text Available El carcinoma papilar, variante esclerosante difusa, corresponde al 2% de todos los carcinomas papilares de la tiroides. Se caracteriza por comprometer de manera difusa y bilateral a la glándula tiroides. Clínicamente se manifiesta con metástasis ganglionares y pulmonares, afectando predominantemente a mujeres jóvenes. Se describe un caso de taponamiento cardíaco como presentación inicial de un carcinoma papilar de tiroides variante esclerosante difusa. Una mujer de 32 años concurrió al servicio de emergencias médicas refiriendo epigastralgia y tos seca. Durante el examen físico se constató hipotensión arterial, taquicardia y ruidos cardíacos disminuidos. Se realizó un ecocardiograma, observándose derrame pericárdico. Por medio de una pericardiocentesis se obtuvo líquido pericárdico, cuyo análisis mostró células neoplásicas. Durante la evolución la paciente presentó recurrencia del derrame pericárdico por lo que se realizó una ventana pleuropericárdica, detectándose durante la cirugía una lesión nodular subpleural, la cual fue biopsiada e informada posteriormente como una metástasis de carcinoma papilar vinculable a origen tiroideo. Se realizó una tiroidectomía total con linfadenectomía cervical bilateral. El diagnóstico final fue carcinoma papilar, variante esclerosante difusa. Esta variante infiltra el tejido conectivo de los espacios interfoliculares, simulando una tiroiditis y se caracteriza por una permeación vascular temprana. En oposición a la variante clásica, la esclerosante difusa presenta mayor agresividad y mayor tasa de recurrencia. El carcinoma papilar de tiroides debe tenerse presente como diagnóstico diferencial en nuestro medio, en todas aquellas lesiones neoplásicas papilares metastásicas, más aún si se trata de mujeres jóvenes.Papillary carcinoma, diffuse sclerosing variant corresponds to 2% of all papillary thyroid carcinomas. It is usually diffuse and bilateral, affecting the entire

  13. Carcinoma de Células Escamosas de Tiroides: A Propósito de un Caso Primary squamous cell thyroid carcinoma

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    J. Rodríguez

    2010-12-01

    Full Text Available El carcinoma de células escamosas de tiroides (CCET es un tumor infrecuente y agresivo. Su etiología es incierta. Ante la presencia de carcinoma escamoso en la glándula tiroides debe excluirse la posibilidad de infiltración de un tumor originado en una estructura adyacente o de metástasis de otros carcinomas. El tratamiento de elección es la cirugía radical. La mayoría de los pacientes fallecen antes del año debido a progresión local de la enfermedad. Presentamos el caso de un paciente con una masa tiroidea, con diagnóstico histológico de carcinoma escamoso (con inmunohistoquímca negativa para tiroglobulina, TTF1 y calcitonina y positiva para p63 y citok5. Los estudios clínicos, endoscópicos y radiológicos excluyeron otros sitios de origen de carcinoma escamoso. Fue tratado con quimio y radioterapia, falleciendo por progresión local luego de 9 meses.Primary squamous cell thyroid carcinoma (PSCTC is a rare and aggressive tumor of uncertain origin. When squamous carcinoma is diagnosed, it is mandatory to exclude the possibility of primary tumor arising from an adjacent structure or representing metastases from a primary growth elsewhere. Aggressive surgical resection is the treatment of choice. However, the prognosis is poor, with a median survival of less than a year. Death is usually secondary to progression of local disease. We report a case of a patient presenting with a thyroid mass; biopsy was consistent with squamous cell carcinoma. On immunohistochemistry tumor cells were negative for TTF1, thyroglobulin and calcitonin. Cancer cells were positive for p63 and citok5. Extensive workup excluded the possibility of extrathyroid origin. The patient was treated with chemoradiotherapy; he died 9 months later due to local progression.

  14. Angiosarcoma primario de mama y carcinoma papilar de tiroides sincrónico: presentación de un caso

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    Manzanares C,María del Carmen; Muñoz A,Virginia; Sánchez G,Susana; Martínez P,Fernando; Martín F,Jesús

    2013-01-01

    Antecedentes: El angiosarcoma primario de mama constituye un tumor infrecuente que se desarrolla de forma predominante en mujeres en la tercera y cuarta décadas de la vida. Los nódulos tiroideos incidentales son aquellos que se objetivan en pruebas de imagen realizadas por otra causa y se observan en menos de un 10% con la tomografía por emisión de positrones (PET). Objetivo: Presentar el caso excepcional de una paciente con angiosarcoma primario de mama y un carcinoma papilar de tiroides sin...

  15. ESTUDIO MORFOLÓGICO DEL CULTIVO A LARGO PLAZO DE FOLÍCULOS AISLADOS Y CERRADOS DE TIROIDES DE CERDO

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    M HERRERA

    2008-01-01

    Full Text Available La unidad morfológica y funcional de la glándula tiroides es el folículo, estructura ovoide cerrada, constituida por una capa de células cúbicas (tirocitos que encierran un lumen lleno del coloide secretado por ellas. En cultivo, tanto la estructura como la función del folículo se pierden rápidamente en las primeras 24 horas. Sin embargo, si se cultivan folículos cerrados de tiroides de rata conservan la arquitectura folicular, la morfología del tirocito y la función hasta la síntesis de hormonas tiroides de manera similar a la glándula in vivo. En este trabajo describimos el aislamiento y cultivo de folículos porcinos cerrados y su análisis morfológico. Los folículos se aíslan por digestión enzimática y disociación mecánica del parénquima tiroideo, luego se cultivan sobre agarosa con y sin hormona tirotrópica o tirotropina (1 mU/ml, TSH. El tejido de tiroides porcino obtenido tiene las mismas características de una glándula hipotiroidea in vivo, un epitelio casi plano, retículo endoplásmico rugoso (RER exiguo, complejo de Golgi (CG, y microvellosidades escasas y cortas. Los folículos cultivados sin TSH conservan la forma ovoide y el coloide en su interior, y la misma ultra-estructura del tejido in vivo, RER y CG muy escasos, pero con el tiempo de cultivo aumenta la longitud de la microvellosidades y el espesor del epitelio. En presencia de TSH el epitelio se hipertrofia desde el primer día y las cavidades foliculares se reducen considerablemente. Se demuestra que folículos cerrados de tiroides durante ocho días (d de cultivo conservan su morfología con y sin TSH. Además, estos responden al estímulo de TSH disminuyendo su cavidad folicular y aumentando el espesor del epitelio folicular.

  16. Acceso inmediato de los pacientes de cáncer refractario de tiroides y medular de tiroides al tratamiento farmacológico aprobado por la Agencia Europea del Medicamento aunque aún en tramitación por la Administración Central o autonómica

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    García-González, Manuel

    2015-01-01

    El objeto del presente dictamen es dar respuesta a la consulta formulada por la Asociación Española de Cáncer de Tiroides (AECAT), organización independiente y sin ánimo de lucro, cuya misión, según es descrita en su página web, es la ayuda a los pacientes de cáncer de tiroides.

  17. Estudio del protooncogen Ret en neoplasia endocrina multiple 2A y en carcinoma medular en tiroides familiar: Hallazgos clínico-patológicos en portadores asintomáticos Analysis of the RET protooncogene in multiple endocrine neoplasia 2A and in familial medullary thyroid carcinoma: Clinical-pathological findings in asymptomatic carriers

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    S. Belli

    2003-01-01

    Full Text Available El 25% de los carcinomas medulares de tiroides son hereditarios. Se presentan en forma de familiar (CMTF 5% o como neoplasia endocrina múltiple (MEN tipo 2A (17% o 2B (3%, y comparten la herencia, autosómica dominante, de una mutación germinal en el protooncogen RET en uno de 12 codones conocidos. Estudiamos 7 familias (5 CMTF y 2 MEN 2A con el objeto de detectar la mutación familiar e identificar a los portadores asintomáticos. Seis de las siete mutaciones (4 CMTF y 2 MEN 2A fueron en el codón más frecuente, el 634, y una familia con CMTF presentó una mutación germinal novel: una transición T>C en el codón 630, resultando el cambio C630A. De los 57 individuos estudiados, 25 (43.85 % fueron portadores de la mutación, 7 de éstos (28% eran portadores asintomáticos de los cuales 5 eran niños, con una edad X-=11±3.2 años y fueron tiroidectomizados. Presentaron hiperplasia de células C y focos de microcarcinoma en ambos lóbulos tiroideos aun cuando la calcitonina basal o estimulada con pentagastrina fueron normales. En conclusión, describimos una mutación germinal novel en el protooncogen RET: C630A y el hallazgo de enfermedad de la célula C en los portadores asintomáticos, que enfatiza la importancia de la tiroidectomía profiláctica tan pronto como se confirma el diagnóstico molecular.Twenty five percent of the medullary thyroid carcinoma (MTC is hereditary and 5% is familiar (FMTC, or considered as multiple endocrine neoplasia (MEN type 2A (17% or 2B (3%. These diseases are the result of the autosomic dominant inheritance of a mutation in the RET protooncogene, in one out of 12 different known codons. We analyzed 7 families (2 MEN 2A and 5 FMTC. Six mutations were detected in the most frequent codon, 634 (2 MEN 2A y 4 FMTC and one family with FMTC presented a novel mutation: a transition T>C at codon 630, resulting a C630A change. Among 57 individuals studied, 25 (43.85% presented the mutation. Seven (28% were asymptomatic

  18. Tiroiditis de Quervain

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    Idania Teresa Mora López; Maria de la Caridad Casanova Moreno; Isabel Marina Moncada Rodríguez

    2015-01-01

    Se presenta el caso de una paciente que asistió a la consulta externa de endocrinología del Hospital General Docente "Enrique Cabrera", Pinar del Río, Cuba; con 62 años de edad, de raza blanca, antecedentes de enfermedad respiratoria alta y, posteriormente, aumento de volumen en la región anterior del cuello, dolor intenso, espontáneo, disfagia, fiebre de 39ºC a 40ºC y malestar general. Se constata al examen físico un aumento de volumen difuso de la glándula tiroides y dolor a la palpación en...

  19. Tiroiditis no-autoinmunes

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    Leonardo F. L. Rizzo; Daniela L Mana; Bruno, Oscar D.

    2014-01-01

    El término tiroiditis comprende un grupo de enfermedades de la glándula tiroides caracterizado por la presencia de inflamación, abarcando entidades autoinmunes y no-autoinmunes. Pueden manifestarse como enfermedades agudas con dolor tiroideo severo (tiroiditis subaguda y tiroiditis infecciosas), y condiciones en las cuales la inflamación no es clínicamente evidente, cursando sin dolor y presentando disfunción tiroidea y/o bocio (tiroiditis inducida por fármacos y tiroiditis de Riedel). El obj...

  20. Tiroiditis de Quervain

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    Idania Teresa Mora López

    2015-06-01

    Full Text Available Se presenta el caso de una paciente que asistió a la consulta externa de endocrinología del Hospital General Docente "Enrique Cabrera", Pinar del Río, Cuba; con 62 años de edad, de raza blanca, antecedentes de enfermedad respiratoria alta y, posteriormente, aumento de volumen en la región anterior del cuello, dolor intenso, espontáneo, disfagia, fiebre de 39ºC a 40ºC y malestar general. Se constata al examen físico un aumento de volumen difuso de la glándula tiroides y dolor a la palpación en la región anterior del cuello. Se decide darle seguimiento ambulatorio. Aspectos significativos en las investigaciones realizadas: hemograma con diferencial y eritrosedimentación; leucocitosis con desviación a la izquierda y eritrosedimentación acelerada, hormonas tiroideas y tiroestimulante normales en el inicio de la tiroiditis y elevada en meses posteriores, confirmando el diagnóstico de hipotiroidismo primario crónico.

  1. Tiroiditis no-autoinmunes

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    Leonardo F. L Rizzo

    2014-12-01

    Full Text Available El término tiroiditis comprende un grupo de enfermedades de la glándula tiroides caracterizado por la presencia de inflamación, abarcando entidades autoinmunes y no-autoinmunes. Pueden manifestarse como enfermedades agudas con dolor tiroideo severo (tiroiditis subaguda y tiroiditis infecciosas, y condiciones en las cuales la inflamación no es clínicamente evidente, cursando sin dolor y presentando disfunción tiroidea y/o bocio (tiroiditis inducida por fármacos y tiroiditis de Riedel. El objetivo de esta revisión es aportar un enfoque actualizado sobre las tiroiditis no-autoinmunes cubriendo sus aspectos clínicos, diagnósticos y terapéuticos.

  2. Hipertiroidismo y riesgo de cáncer de tiroides

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    Cedola, Federico N.; Ricciardi, María Paula; Lastra, S.; Rielo, M.; Spezzi, M.

    2016-01-01

    La coexistencia de cáncer de tiroides (CT) y el hipertiroidismo se encuentra descripta aunque se desconoce la fisiopatología de esta relación. Los nódulos tiroideos son más frecuentes en personas con enfermedad de Graves (EG) que en la población general y se ha reportado malignidad en 2,3 a 45,8 %. El CT puede asociarse a diferentes formas de hipertiroidismo: EG, nódulos tiroideos tóxicos únicos o múltiples e hiperproducción hormonal por metástasis funcionantes del carcinoma tiroideo....

  3. Cáncer de Tiroides: Estudio descriptivo retrospectivo Thyroid carcinoma: A descriptive retrospective study

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    Carolina C. González

    2006-12-01

    Full Text Available Entre todos los tumores, el carcinoma tiroideo (CT es poco frecuente, se caracteriza por su lenta evolución y elevado porcentaje de curación. Nuestro objetivo es estudiar las características de los pacientes con CT. Analizamos retrospectivamente a 171 pacientes, edad media al diagnóstico 41.1( ± 14.6 años, que consultaron entre los años 2000-04 por CT. Se evaluaron datos de anamnesis, métodos de diagnóstico, anatomía patológica y evolución. Agrupamos a los tumores por el tamaño y según TNM (tumor-adenopatía-metástasis en estadios (E. La presencia de tiroglobulina estimulada (Tg > 2 ng/ml e imagen positiva (con 131I u otro radiotrazador fueron consideradas como positivas para CT residual. De la población total el 88% fue sexo femenino, el 62% menores de 45 años, y el 77.1% tuvo función tiroidea normal. La punción con aguja fina (PAAF fue diagnóstica en 78%. El 96% fue carcinoma papilar (CTP, 63% presentaban E I; 14% E II; 19% E III y 4% E IV. Se detectó CT residual en el 90% de los pacientes con Tg entre 2 y 10, y en el 100% con Tg > 10 ng/ml, mientras que con Tg The thyroid carcinoma (TC is not very frequent among all cancers. Its course is slow and is high potentially curable. Our aim was to analyse the characteristics in patients with TC. A retrospective analysis on 171 patients, with an average age of 41.1 (±14,6, who asked for TC to our service between the years 2000-04, was performed. From case histories it was evaluated: anamnesis, diagnostic image, histopathology and evolution. Tumours were grouped for size and TNM (tumour-nodule-metastasis in stages (S. A stimulated serum thyroglobulin level > 2 ng/ml and positive image with 131I or another nuclear marker were considered as positive for residual TC. In the totality of the analyzed patients 88% were female, 62% below 45 years old, and in 77% the thyroid function was normal. The fine needle aspiration (FNA was diagnostic in 78%. Papillary thyroid carcinoma (PTC in 96

  4. Cancer de Tiroides e Indicaciones de Tiroidectomia.

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    Hernando Vargas Uricoechea

    2015-06-01

    Full Text Available INTRODUCCIÓN: El cáncer tiroideo es el cáncer endocrino más común de todos los diagnosticados en los Estados Unidos. El incremento en su frecuencia se debe al aumento en la incidencia del tipo papilar; su principal forma de presentación es en tumores pequeños. METODOLOGÍA: Se realizó una búsqueda manual exhaustiva de los registros de patología de individuos que fueron sometidos a tiroidectomía en dos centros de referencia en Popayán-Cauca, entre los años 2004 y 2013. Se realizó un análisis exploratorio para calcular las medidas de ocurrencia en enfermedad tumoral y no-tumoral. RESULTADOS: Se documentaron 463 tiroidectomías; 205 fueron por cáncer de tiroides y 258 fueron por patología distinta al cáncer de tiroides; 195 correspondieron a las diferentes variedades de carcinoma diferenciado (95,121%; 168 fueron para el tipo papilar clásico y sus variedades (81,95%; 22 fueron para carcinoma folicular (10,73%; 3 para carcinoma de células de Hürthle (1,46%; 2 se rotularon como mixtos (0,975%; 6 (2,92% correspondieron a carcinoma pobremente diferenciado; 2 correspondieron a carcinoma medular (0,975% y 2 fueron clasificados como anaplásicos (0,975%. CONCLUSIONES: El incremento en el número de cirugías en patología tiroidea tumoral y no-tumoral puede explicarse por un aumento real en la frecuencia –por un factor medioambiental explícito– (ingesta excesiva de sal yodada y por un “sobrediagnóstico” originado por un mayor acceso a estudios de imágenes y una mayor frecuencia de ACAF. El incremento en los procedimientos en patología no-tumoral puede deberse principalmente a conductas, decisiones o creencias por parte del cirujano y del paciente.

  5. Protocol for thyroid remnant ablation after recombinant TSH in thyroid carcinoma Protocolo para ablación de remanentes tiroideos luego de TSH recombinante en el cáncer diferenciado de tiroides

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    Fabián Pitoia

    2009-02-01

    Full Text Available In some countries, in order to perform rhTSH-aided thyroid remnant ablation (TRA after surgery, it is generally necessary to confirm that thyroidectomy has been almost complete. Otherwise, the nuclear medicine specialist will not administer a high radioiodine dose because it might be hazardous due to the possibility of thyroid remnant actinic thyroiditis. Considering this, it would be necessary to use two rhTSH kits (one for diagnostic purposes and the other one to administer the 131I dose. In this study, we used an alternative protocol for TRA with the use of one kit of rhTSH in twenty patients diagnosed with low risk papillary thyroid carcinoma. All patients had negative titers of anti-thyroglobulin antibodies. Successful thyroid remnant ablation was confirmed with an undetectable rhTSH stimulated thyroglobulin level (En algunos países, para realizar la ablación de los remanentes tiroideos con radioyodo después de la cirugía, generalmente se requiere confirmar que la tiroidectomía fue casi completa, ya que de otra manera el especialista en medicina nuclear no administrará una dosis elevada de radioyodo, considerando que esto puede ser dañino para el paciente debido a la posibilidad de generar una tiroiditis actínica. De acuerdo con esto, sería necesario administrar 2 kits de rhTSH (uno para diagnóstico y otro para la dosis de radioyodo. En este estudio, empleamos un protocolo alternativo para la ablación luego de la administración de un único kit (2 ampollas de rhTSH en 20 pacientes con antecedentes de un carcinoma papilar de bajo riesgo. Todos los pacientes presentaban títulos negativos de anticuerpos anti-tiroglobulina. La ablación exitosa de remanente tiroideo se confirmó con un nivel no detectable de tiroglobulina (<1 ng/ml al estímulo por rhTSH en los 20 pacientes, entre 8 a 12 meses luego de la ablación. El uso de este protocolo que combina la posibilidad de realizar un centellograma diagnóstico y la ablación luego

  6. NODUL TIROID SOLITER

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    I Gusti Ayu Prema Yani Sidemen

    2014-10-01

    Full Text Available Latar Belakang: Nodul tiroid adalah pembengkakan atau massa pada kelenjar tiroid.Pembedahan merupakan pilihan terapi utama, namun pembedahan yang tidak dilakukandengan baik berisiko tinggi mencederai 2 struktur penting, yakni kelenjar paratiroid dannervus rekuren laringeal. Risiko nodul tiroid akan meningkat seiring pertambahan usiadan kurangnya asupan sodium.Insiden terjadinya nodul tiroid lebih sering ditemukanpada laki-laki dan usia di atas 50 tahun, namun pada kasus ini nodul tiroid soliterditemukan pada seorang perempuan dewasa muda sehingga melatar belakangi penulisuntuk mendiskusikan kasus ini dalam laporan kasus.Kasus: Seorang pasien perempuan 32 tahun dengan keluhan tumbuh benjolan padaleher kiri sejak ± 1 tahun yang lalu. Benjolan tersebut dirasakan semakin membesar.Pasien tidak mengeluhkan rasa nyeri di daerah benjolan. Gangguan pada saat makanataupun minum, riwayat sesak, dada berdebar-debar, sering berkeringat, ataupunpenurunan berat badan disangkal. Pada pemeriksaan fisik didapatkan keadaan umumdalam batas normal.  Pada pemeriksaan status lokalis pada region colli anterior lateralsinistra ditemukan massa lunak yang mobile dengan batas tegas dan ukuran ± 3,2 cm x3,4 cm.Hasil: Hasil pemeriksaan patologi anatomi menunjukkan terdapat degenerasi kistikpada massa tiroid tersebut. Pasien kemudian menjalani tindakan pembedahan, yaknitiroidektomi dengan isthmolobectomy. Tiroidektomi dengan teknik diseksi kapsularpada pasien ini berhasil dibuktikan dengan tidak terdapatnya kerusakan pita suara ataukejang pasca operasi.Kesimpulan: Kondisi pasca tiroidektomi dengan teknik diseksi kapsular pada pasien inibaik, tidak terdapat komplikasi kerusakan pita suara dan nervus rekuren laringeal,pasien hidup, dan luka operasi terawat baik.

  7. Linfoma tiroideo en paciente con tiroiditis de Hashimoto

    OpenAIRE

    Carmen Aravena G.; Daniela Aguayo Y.; Francisca Marín A.; Felipe Cayumil F.

    2014-01-01

    INTRODUCCIÓN: El linfoma tiroideo (LT) es una neoplasia infrecuente (menos del 1% de linfomas y menos del 2% de neoplasias tiroideas). Su incidencia es mayoritaria en mujeres, entre 60 y 75 años. La tiroiditis de Hashimoto es un importante factor de riesgo. El objetivo es destacar la importancia del estudio precoz del bocio rápidamente progresivo. PRESENTACIÓN DEL CASO: Hombre de 63 años, con antecedentes de hipertensión arterial, tabaquismo crónico activo e hipotiroidismo por tiroiditis de H...

  8. Tumores de células de Hürthle de la glándula tiroides: 28 casos. Hospital Universitario del Valle, Cali.

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    Yolanda De la Calle

    2009-10-01

    Full Text Available En 28 enfermos tratados quirúrgicamente por tumores de células de Hürthle de la glándula tiroides, en el Hospital Universitario del Valle, Cali, entre 1984 y 1996, se revisaron las características citológicas e histopatológicas de las lesiones y se buscaron los datos relacionados con la evolución clínica y el tipo de cirugía. El diagnóstico por citología aspirativa tuvo 81.8% de sensibilidad, 93.8% de especificidad, 90% de valor predictivo positivo, y 88.2% de valor predictivo negativo. La característica citológica más común en las lesiones malignas fue la alta celularidad, p 0.05. En 11 de los casos se encontraron signos histológicos de malignidad, pero sólo en 2 pacientes se demostró un comportamiento biológico agresivo, con desarrollo de metástasis a distancia. Los resultados concuerdan con otros estudios en que las neoplasias tiroideas oxifílicas, por lo general, no siguen un curso clínico maligno y se pueden tratar conservadoramente en la mayoría de los casos.

  9. Cáncer de tiroides. Caracterización en la provincia de Cienfuegos (2006-2010

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    Álvaro Enrique Galeano Tenorio

    2012-05-01

    Full Text Available Fundamento: el cáncer de tiroides es el carcinoma endocrino más común, aunque solo represente un 1% del total de tipos cáncer. Su incidencia parece aumentar un 4% cada año, y en la actualidad es el octavo cáncer más frecuente en mujeres, apareciendo fundamentalmente en las edades comprendidas entre los 25 y 65 años.Objetivo: caracterizar el comportamiento del cáncer de tiroides en la provincia de Cienfuegos. Métodos: se realizó un estudio descriptivo, ambiespectivo, de corte longitudinal, con un total de 62 pacientes operados en el servicio de Cirugía General del hospital Dr. Gustavo Aldereguía Lima, durante el quinquenio 2006-2010. Las variables estudiadas: tasas de incidencia anual, edad, sexo, localización y tipo histológico del tumor, y estado actual de los pacientes. Resultados: el mayor número de pacientes correspondió al sexo femenino, siendo el carcinoma papilar la variante histológica más diagnosticada (85,19 %. La incidencia mayor se registró en el año 2010. El grupo edades de 41 a 50 años fue el más representativo. El mayor número de cánceres (79,03 % se diagnosticaron en el estadio I. Conclusiones: la propia incidencia elevada del cáncer de tiroides en la provincia de Cienfuegos, en los últimos cinco años, ha hecho que la vigilancia sobre esta afección se haya incrementado, lo cual se evidencia por el diagnóstico en etapas tempranas, resultado de este estudio.

  10. Cancer de Tiroides. Más Iatrogenia Terapéutica que Morbimortalidad Tumoral.

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    Alvaro Sanabria Quiroga

    2015-06-01

    Full Text Available El cáncer de tiroides es el cáncer endocrino más frecuente y la tiroidectomía la cirugía cervical más realizada. En las últimas décadas, la incidencia de cáncer de tiroides ha tenido un aumento progresivo, llegando al punto de que algunos escritores lo han considerado la epidemia de cáncer del siglo XXI. Este aumento corresponde principalmente a carcinomas papilares menores de 1 cm; a pesar de su detección y tratamiento en etapas tan tempranas, no se ha producido un cambio significativo en la mortalidad. Mucho se ha discutido acerca de las causas de este crecimiento de la incidencia y de la verdadera magnitud de esta “epidemia”. Existe claridad hoy en día de que el acceso fácil y el uso indiscriminado de la ecografía para el estudio de cualquier condición cervical ha redundado en este aumento dramático de la incidencia de cáncer de tiroides. De alguna manera, nos hemos convertido en víctimas de la tecnología, que se usa sin apego a las recomendaciones basadas en la evidencia. Además del problema que implica detectar precozmente una condición para la cual el tratamiento no produce cambios en la mortalidad y recurrencia, esta “epidemia” ha tenido un efecto notable en la carga para el sistema de salud y en la calidad de vida de los pacientes...

  11. Exploración funcional de la Tiroides: Determinación del yodo proteico en la sangre

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    Adolfo Bisso

    1956-07-01

    Full Text Available Se estudió un total de 129 sujetos distribuídos en la forma siguiente: 39 de control; 19 con bocio coloide normofuncionante; 12 con hipotiroidismo; 26 con hipertiroidismo; 18 con obesidad; 3 gestantes, 10 con endocrinopatías diversas, y 2 con miastenia gravis. En todos se realizó la determinación de yodo proteico en sangre, y en la mayoría se determinaron el metabolismo basal y el colesterol en la sangre. Ocasionalmente se efectuó la determinación del metabolismo en somnolencia. 1.- En sujetos sin enfermedad funcional tiroidea, las cifras de yodo proteico varían entre 4.20 y 7. 10 mcgrs. por ciento, con un promedio de 5.47±:0.15 y D.S. de 0.89 ± 0.10. Puede aceptarse como límites normales entre 3.5. y 8 mcgrs. por ciento. Los obesos y los enfermos con bocio coloide normofuncionante dan resultados similares, mientras que los hipertiroideos arrojan cifras significativamente más altas, y los hipotiroideos tienen cifras significativamente más bajas. 2.- El resultado de la determinación del yodo proteico en la sangre, guarda estrecha relación con el diagnóstico clínico de actividad tiroidea, excepto en los casos de introducción exógena de yodo, sea hormonal o no. 3.- El metabolismo basal si bien en estudio de grupos es alto en el hipertiroidismo, normal en los casos de bocio coloide normofuncionante, y bajo en el hipotiroidismo y en la obesidad, tiene discrepancias muy grandes con el diagnóstico clínico en cada caso en particular, excepto en el hipotiroidismo. 4.- El colesterol en cada grupo, estuvo en promedio, dentro de límites normales, y en cada caso particular fué muy variable e independiente del estado funcional tiroideo. 5.- De los tres métodos de exploración funcional de la glándula tiroidea que se han utilizado, el único que ha demostrado tener valor en el diagnóstico individual, ha sido la determinación del yodo proteico, siempre que se excluyera la introducción de yodo del exterior.

  12. del Carcinoma Cervicouterino

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    Ana Lidia Vargas Rodríguez

    2006-01-01

    Full Text Available Las ficobiliproteínas (PBs son los principales pigmentos accesorios de las algas rojas y de algunas cianobacterias. Tienen valor terapéutico como inmunomodulador, sin embargo en el tratamiento del cáncer su uso es escaso. Las PBs son proteínas que tienen unidos a sus residuos de cisteína, grupos prostético tetrapirroles lineales. Estos grupos tienen dobles enlaces conjugados que permiten la transferencia de electrones, con lo cual podrían emplearse como fotosensibilizadores en la Terapia Fotodinámica (PDT. Debido a que en México el cáncer cervicouterino es un problema serio de salud pública, es necesario encontrar opciones para abatir los costos y permitir la aplicación de diferentes terapias. Así, el objetivo de este trabajo fue comparar la respuesta de dos líneas celulares de cáncer cervicouterino (CaLo y HeLa a las mismas concentraciones de PBs, manejando dos posibles tratamientos, en el primero únicamente exponiéndolas a las PBs y el otro con exposición simultanea a la irradiación con un láser de argón. Se realizó una extracción de PBs a partir de un gramo de biomasa de Pseudoanabaena, en buffer de fosfatos. La caracterización se realizó mediante la lectura de la absorbancia de la muestra a 565, 620 y 650 nm para determinar las concentraciones de PBs. Para determinar la efectividad de las PBs en la PDT, se sembraron 5x104 células HeLa y CaLo por pozo en microplacas de 96 pozos. Las células se expusieron a las siguientes dosis de PE: 2.17x10-3, 4.35x10-3, 8.70x10-3, 8.7x10-3, 3.48x10-2, 6.96x10-2 mg/ml. Después de 3h de exposición se irradiaron con un láser de argón a 127 J/cm2. Pasadas 24 h se determinó la viabilidad celular por el método del rojo neutro tanto en las células irradiadas como en las no irradiadas. Se determinó que para Hela las dos primeras dosis eran seguras, sin embargo cuando las células se irradiaron se determinó 46% de muerte celular en ambas dosis. En las dosis más altas la muerte

  13. Optimization of the therapeutic dose of {sup 131}I for thyroid differentiated carcinoma; Otimizacao da dose terapeutica com {sup 131}I para carcinoma diferenciado da tiroide

    Energy Technology Data Exchange (ETDEWEB)

    Lima, Fabiana Farias de

    2002-09-01

    reduction for many organs, such as the narrow and gonads, of up to 78.4%.Possible benefits to the institution also include the use of less radioactive material and a reduction in radiation exposures to the staff during the manipulation and administration of the {sup 131} I. To facilitate the calculations of the optimum therapeutic activity of {sup 131} I for individual patients, a simple and fast dose planning program was created (PlanDose). The program has been set up to evaluate thryroid remant ablation, but it can also be used for the calculation of the activity to be administered for treatment of hyperthyroidism. This protocol of calculated optimal patient-specific {sup 131} I. activities allows a better determination of the necessary ablative dose for patients with differentiated carcinoma of the thyroid, and is an example of optimizing the practice of radiation protection. (author)

  14. Biological dosimetry of patients with differenced carcinoma of thyroid treated with Iodine-131; Dosimetria biologica de pacientes con carcinoma diferenciado de tiroides tratados con Iodo-131

    Energy Technology Data Exchange (ETDEWEB)

    Vallerga, M. B.; Rojo, A.M.; Taja, M.R.; Deluca, G.; Di Giorgio, M. [Autoridad Regulatoria Nuclear Av. Del Libertador 8250 (C1429BNP). Buenos Aires (Argentina); Fadel, A. [Hospital General de Agudos Dr. Carlos Durand Av. Diaz Velez 5044. Buenos Aires (Argentina); Cabrejas, M.; Valdivieso, C. [Hospital de Clfnicas Jose de San Martin Av. Cordoba 2351 (CP1120). Buenos Aires (Argentina)]. e-mail: mvallerg@cae.arn.gov.ar

    2006-07-01

    The administration of I-131 to patient with Differentiated Thyroid Carcinoma (CaDiT) it is used inside the therapeutic outline as later step to the thyroidectomy. However, the good activity to give is of difficult determination due to factors such as, the variability in the capacity of tumoral reception of the I-131, distribution of the pharmaceutical, physiologic status, other associate pathologies, grade of advance of the illness, and previous treatments. Additionally, the activity to administer is dependent of the dose of tolerance in the healthy tissues; superior dose to 2 Gy in bone marrow, its could drive to myelotoxicity. At the moment, the form more extended of administration it is the empiric prescription that considers clinical parameters and of laboratory for their determination. Presently work, the protocol of applied treatment incorporates the evaluation for internal dosimetry and biological dosimetry to estimate absorbed dose in bone marrow. The biological estimate of the dose of these patients is based on the quantification of chromosomal aberrations whose frequency is referred to a curve-dose response in which the lymphocytes is irradiated in vitro with I-131, allowing to determine the in vivo dose to the patient's circulating lymphocytes. The objective of the present work is to determine the applicability of different cytogenetic essays in the estimate of the absorbed dose to the whole body or specific organs. Three patients were evaluated with CaDiT. Their treatment protocol consisted on a tracer administration of radioactive iodine of 74 - 111 MBq (2 - 3 mCi) and a therapy 7,4 - 11,1 GBq (200 - 300 mCi). Previous to the tracer administration and 8 days post-therapeutic administration took samples of veined blood that were evaluated by biological dosimetry by means of the application of the techniques: conventional cytogenetic Micronucleus and FISH (Hybridization in situ by Fluorescence). Starting from the frequencies of observed chromosomal

  15. Quiste cervical como manifestación inicial de un microcarcinoma papilar de tiroides

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    Jorge Fallas González

    2012-03-01

    Full Text Available Las masas quísticas en cuello son usualmente benignas en pacientes jóvenes. Sin embargo, tumores malignos de la cabeza y el cuello pueden presentarse ocasionalmente con metástasis quísticas. Se presenta el caso de una paciente de 33 años asintomática con una masa cervical quística de gran tamaño con 1 año de evolución, que inicialmente fue manejada como un quiste branquial, en quien luego de estudios por imagen e histopatológicos se sospechó carcinoma papilar de tiroides. Este diagnóstico fue corroborado en el trans-operatorio y se trató con tiroidectomía total, disección ganglionar del compartimiento central y disección ganglionar radical modificada derecha. El diagnóstico definitivo en el espécimen quirúrgico fue de un microcarcinoma papilar de tiroides con metástasis ganglionares quísticas y posteriormente la paciente recibió terapia con yodo radioactivoCystic cervical masses are usually benign in the young adult population. However malignant tumors of the head and neck may present ocasionally as cystic metastasis. Herein we report a case of a 33 year old female patient, asymptomatic, with a huge cystic cervical mass of 1 year data. The initial diagnosis was a branchial clef cyst, but after imaging studies and histopathologic examination papillary thyroid carcinoma was suspected. This diagnosis was confirmed in an intraoperatory consultation, so a total thyroidectomy, central lymph node dissection and modified radical neck dissection was performed. The final diagnosis on the surgical specimen was a papillary microcarcinoma of the thyroid with cystic lymph node metastasis and the patient received radioactive iodine afterwards

  16. ESTUDIO MORFOLÓGICO DEL CULTIVO A LARGO PLAZO DE FOLÍCULOS AISLADOS Y CERRADOS DE TIROIDES DE CERDO Morphological Study of Long-term culture of closed isolated pig folicles

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    M HERRERA

    Full Text Available La unidad morfológica y funcional de la glándula tiroides es el folículo, estructura ovoide cerrada, constituida por una capa de células cúbicas (tirocitos que encierran un lumen lleno del coloide secretado por ellas. En cultivo, tanto la estructura como la función del folículo se pierden rápidamente en las primeras 24 horas. Sin embargo, si se cultivan folículos cerrados de tiroides de rata conservan la arquitectura folicular, la morfología del tirocito y la función hasta la síntesis de hormonas tiroides de manera similar a la glándula in vivo. En este trabajo describimos el aislamiento y cultivo de folículos porcinos cerrados y su análisis morfológico. Los folículos se aíslan por digestión enzimática y disociación mecánica del parénquima tiroideo, luego se cultivan sobre agarosa con y sin hormona tirotrópica o tirotropina (1 mU/ml, TSH. El tejido de tiroides porcino obtenido tiene las mismas características de una glándula hipotiroidea in vivo, un epitelio casi plano, retículo endoplásmico rugoso (RER exiguo, complejo de Golgi (CG, y microvellosidades escasas y cortas. Los folículos cultivados sin TSH conservan la forma ovoide y el coloide en su interior, y la misma ultra-estructura del tejido in vivo, RER y CG muy escasos, pero con el tiempo de cultivo aumenta la longitud de la microvellosidades y el espesor del epitelio. En presencia de TSH el epitelio se hipertrofia desde el primer día y las cavidades foliculares se reducen considerablemente. Se demuestra que folículos cerrados de tiroides durante ocho días (d de cultivo conservan su morfología con y sin TSH. Además, estos responden al estímulo de TSH disminuyendo su cavidad folicular y aumentando el espesor del epitelio folicular.The morphological and functional unit of the thyroid gland is the follicle - an ovoid closed-structure, constituted by a layer of cubical cells (thyrocytes that lock up a full lumen of the colloid secreted by themselves. In

  17. Microcarcinoma papilar de tiroides: ¿microcarcinoma o microtumor?

    OpenAIRE

    Ladra González, María Jesús

    2013-01-01

    El cáncer de tiroides está aumentando en incidencia en todo el mundo, siendo quizás la neoplasia que más lo hace. Parece que este fenómeno se debe en la mejora de la detección, pero no es seguro que esa sea la única causa. La investigación del cáncer de tiroides es particularmente interesante como modelo de cáncer en general, puesto que más que en ningún otro órgano, hay una muy estrecha correlación entre el tipo histológico tumoral, las alteraciones moleculares, las vías de metástasis y l...

  18. Análisis proteómico de cultivos primarios de tiroides

    OpenAIRE

    2011-01-01

    En el presente estudio se identificaron proteínas de expresión constitutiva, como vimentina, actina, tubulina, proteína de choque térmico de 60 kDa, peroxirredoxina y la ATP sintasa mitocondrial, en cultivos primarios de tiroides normales y de carcinoma papilar de tiroides. Se establecieron las condiciones de extracción, solubilización, análisis cuantitativo y cualitativo de dichas proteínas, y se buscaron las mejores condiciones de isoelectroenfoque (IEF) en ...

  19. [Clinical characteristics of the thyroid follicular carcinoma].

    Science.gov (United States)

    Gutiérrez-Hermosillo, Hugo; Tamez-Peréz, Héctor Eloy; Díaz de León-Gonzaléz, Enrique; Gutiérrez-Hermosillo, Violeta; Avila-Sanchéz, Jair

    2013-01-01

    Introducción: se ha identificado carcinoma folicular en 39 % de los pacientes con nódulos tiroideos cuya citología prequirúrgica ha indicado resultados indeterminados. El propósito de esta investigación fue conocer la prevalencia de esta entidad en un hospital de concentración. Métodos: se buscaron los reportes quirúrgicos con diagnóstico de carcinoma folicular. Se registró tamaño del tumor, sexo y edad del paciente, diagnósticos pre y posquirúrgico y patologías asociadas. Resultados: se diagnosticó carcinoma folicular en 35 pacientes: 30 mujeres (85 %) y cinco hombres (15 %). La edad en los hombres fue de 57 ± 6.6 y de 44 ± 16.9 en las mujeres. Los diagnósticos preoperatorios fueron carcinoma folicular en 14 (40 %), cáncer tiroideo en seis (17.1 %), adenoma folicular en cuatro (11.4 %), bocio en tres (8.5 %), nódulo tiroideo en tres (8.5 %); carcinoma papilar, tumor de tiroides, carcinoma poco diferenciado de tiroides, adenocarcinoma folicular bien diferenciado, cáncer medular en un paciente (2.8 %) cada uno. Las patologías asociadas fueron tiroiditis de Hashimoto y carcinoma papilar contralateral, con dos pacientes cada uno (5.6 %). Conclusiones: la edad de los pacientes y la presentación clínica del carcinoma folicular difirieron de las informadas en otras investigaciones.

  20. Acceleration of the Increase of Endogenous Thyrotropin Hormone for Follow up Studies or Radioiodine Treatment in Patients with Differentiated Thyroid Carcinoma Incremento rápido de tirotrofina endógena en pacientes con carcinoma diferenciado de tiroides para seguimiento o tratamiento con radioyodo

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    Osvaldo J Degrossi

    2010-06-01

    Full Text Available In follow up (F-U, ablation (A, or treatment (T with radioiodine of patients with differentiated thyroid carcinoma (DTC, it is necessary to obtain elevated figures of serum TSH to assess hTg serum values or carry out 131I scanning. During the past few decades, the method employed was the withdrawal of hormonal treatment (WTH for several weeks and its variants with the inconvenient symptoms of hypothyroidism, often restraining the use of this method. We aimed to obtain a rapid rice of serum TSH after a very short withdrawal of thyroid hormonal treatment (eight to nine days with the use of three or four intravenous application of TRH (200 mcg during the first 6 days of withdrawal (TRH-St. One hundred determinations were carried out in 66 patients with DTC (ages19-80 y.o , 20 males and 46 females. Sixty seven TRH-St were carried out for F-U, 20 for FU/T and 13 for A. In all cases the TSH values after the 3rd or 4th TRH application (samples 1 and 2 were over the value of 25 mIU/L and in the case of the second sample 99/100 determination were over the value of 30 mU/L. The values obtained were for the first sample 70.9 mIU/L ± 54.5 (range 25-310 and for the second sample 85.2 ± 61.3 (range 26-360, pPara efectuar ablación (A , tratamiento con radioyodo (T o seguimiento (S en pacientes portadores de carcinoma diferenciado de tiroides (CDT se hace necesario incrementar los valores de tirotrofina sérica (TSH para elevar la sensibilidad del centellograma y la especificidad de la determinación de tiroglobulina sérica (hTg. Por años el método clásico fue la suspensión del tratamiento opoterápico (WTH o sus variantes y ocasionalmente el uso de TSH de origen animal o , raramente, humana. Hace una década, la introducción de la TRH recombinante (rhTSH significó evitar la desagradable sintomatología del hipotiroidismo que conllevaba el uso del método (WTH y que en ocasiones impedía su utilización. Nuestro objetivo: el rápido ascenso de la TSH

  1. Cáncer anaplásico de tiroides. Reporte de caso.

    OpenAIRE

    Pinto-Valdivia, Miguel; Servicio de Endocrinología, Hospital Nacional Cayetano Heredia. Facultad de Medicina Alberto Hurtado, Universidad Peruana Cayetano Heredia. Lima.; Ortiz-Torres, Milagros; Servicio de Endocrinología, Hospital Nacional Cayetano Heredia. Facultad de Medicina Alberto Hurtado, Universidad Peruana Cayetano Heredia. Lima.; Villena-Chávez, Jaime; Servicio de Endocrinología, Hospital Nacional Cayetano Heredia. Facultad de Medicina Alberto Hurtado, Universidad Peruana Cayetano Heredia. Lima.; Chian-García, César; Departamento de Anatomía Patológica, Hospital Nacional Arzobispo Loayza. Lima.

    2012-01-01

    Mujer de 40 años, sin antecedente de patología tiroidea, con historia de enfermedad de cuatro semanas caracterizado por baja de peso, aumento rápido del tamaño de la glándula tiroides y dolor óseo generalizado. El examen físico mostró bocio multinodular no doloroso con múltiples ganglios cervicales. Los análisis de laboratorio mostraron anemia y niveles elevados de transaminasas, fosfatasa alcalina y deshidrogenasa láctica. El perfil tiroideo fue normal y los anticuerpos antiperoxidasa tiroid...

  2. Utilidad de la Tiroglobulina sérica preablación como predictor de evolución en los pacientes con carcinoma diferenciado de tiroides Usefulness of preablation serum thyroglobulin as a predictor of the evolution of patients with differentiated thyroid carcinoma

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    C Cabezón

    2011-03-01

    Full Text Available El presente es un trabajo retrospectivo y multicéntrico para evaluar el valor de la Tiroglobulina (Tg medida preablación como predictor de evolución en 274 pacientes con Carcinoma Diferenciado de Tiroides (CDT. Se incluyeron pacientes con anticuerpos a Tg (TgAb negativos, tratados con tiroidectomía total, ablación del remanente, con una evolución mayor a 2 años y a los cuales se les midió la Tg bajo estímulo de TSH. Se correlacionó la Tg preablación con el primer control de Tg bajo estímulo de TSH, con el estadio de TNM y con el estado de la enfermedad a Tiempo Final (TF de seguimiento. Según el TNM, 205 pacientes estuvieron en Estadio 1, 19 en 2, 34 en 3 y 16 en 4. A T F, 172 pacientes estuvieron Libres de Enfermedad (LE, 43 con Enfermedad Dudosa (ED y 59 con Enfermedad Persistente/Recurrente (EP. Agrupamos la población en rangos de Tg de 0.5-2.0; 2.1-10.0; 10.1-40.0, 40.1-100 y > 100 ng/mL. No hubo asociación significativa entre la Tg preablación y el estadio del TNM en tanto que la correlación con la Tg estimulada se observó solo en los pacientes con Tg We present a retrospective and multicentric study to evaluate the measurement of preablation Thyroglobulin (Tg as a predictor of the evolution of 274 patients with DTC. All the patients included in the study had negative TgAb, were treated with total thyroidectomy, ablation of the remnant tissue and an evolution period of more than 2 years. We measured preablation Tg under stimulation with endogenous TSH. We correlated the preablation Tg with that at the first control at LT4 withdrawal, with TNM stratification and the final statement of the disease at Final Time (FT. At the end of the evolution period, patients were classified as: free of disease (n=172, with doubtful disease (n=43 and with persistent disease (n=50. According to their Tg levels, patients were subdivided the following ranges of Tg: 0.5-2.0; 2.1-10.0; 10.1-40.0; 40.1-100 and >100 ng/mL. There was not

  3. Cytogenetic in thyroid carcinoma and therapy with 131{sup I}; Citogenetica en cancer de tiroides y terapia con 131''I

    Energy Technology Data Exchange (ETDEWEB)

    Popova, L.; Hadjidekova, V.; Christova, R.; Agova, S.; Grudeva, V.; Hadjieva, T.; Dominguez, I.

    2007-07-01

    In order to assess the genotoxic risk of the therapy with radioiodine-131(''131I), the production of micronuclei (MN) and chromosome aberrations (CA) were analyzed in the peripheral blood lymphocytes of group of 26 patients undergoing therapy with this radionuclide for differentiated thyroid carcinoma (DTC). Blood samples were taken immediately before ''131 I administration and 1 month later. The patients underwent radioiodine ablation (RIA) or radioiodine therapy (RIT) after radical thyroidectomy. The amount of orally administered ''131I activity varied from 3330 to 4030 MBq according to the king of therapy (RIA or RIT). results show that after radioiodine therapy there is a significant increase in the frequency of MN and CA. The mean frequencies of MN {+-} Sd before and after the therapy were 10.72 % {+-} 5.84 % and 25.28 %{+-} 12.6% respectively. For CA, the mean frequencies obtained were 1.16% {+-} 0.36% before and 2.3% {+-} 0.87% after the therapy. These findings indicate a genotoxic activity of ''131I therapy estimated after a period of one month. (Author) 38 refs.

  4. Fijación de radioyodo en huesos maxilares simulando metástasis en pacientes con Carcinoma Diferenciado de Tiroides (CDT: False- Positive images in patients with Differentiated Thyroid Carcinoma. (DTC Uptake of 131-I in maxillary bones mimicking salivary glands

    Directory of Open Access Journals (Sweden)

    O. J. Degrossi

    2008-06-01

    Full Text Available En estudios centellográficos con 131I (CCT para seguimiento, postablación o tratamiento de pacientes portadores de carcinoma diferenciado de tiroides (CDT se observan frecuentemente en tiempos precoces áreas de captación del radiotrazador en macizo facial. Estas áreas corresponden, generalmente, a glándulas salivares y extremo anterior de mucosa nasal y se mantienen durante las primeras 48 horas y no son observadas generalmente a las 72 horas. Pero con menor frecuencia se presentan otras que persisten durante varias semanas; estas áreas fueron consideradas como posibles retención en glándulas salivares, en tejido tiroideo ectópico en piso de boca, o proteínas yodas entre otras causas. En 1996 Valdivieso y col. (Cong. Arg. Biol. Med. Nuclear, Mar del Plata y Gutiérrez y col. (SLAT, Chile consideraron además de las mencionadas posibilidades, que la fijación se podría realizar en hueso maxilar en relación con procesos dentales y esta idea se vio favorecida por dos presentaciones sobre pocos casos que coincidían con la idea sobre el lugar de fijación del radioelemento con producción de imágenes falsas-positivas de enfermedad metastática. Con el propósito de determinar la frecuencia de observación de estas imágenes se procedió a la revisión de 636 CCT efectuados entre el 1 de enero de 2002 y el 31 de diciembre de 2007 en 502 pacientes. En el 31,5 % de los pacientes se observaron áreas activas en maxilares que persistían por varias semanas; la intensidad de concentración fue del 0,3 al 1,2 % de la actividad administrada. En 10 pacientes se efectuaron áreas de interés sobre las zonas activas que se controlaron durante 3 semanas, determinándose el T ½ efectivo registrándose valores promedio de 6,87 ± 0,94 días muy próximos al T ½ físico del 131I, indicando fuerte unión del compuesto radiactivo formado. La intensidad de concentración del radioyodo es variable dependiendo de la intensidad de la lesión dental

  5. Tiroidectomía total vs tiroidectomía radical con linfadenectomía funcional en cáncer de tiroides : evaluación de la recurrencia 3 años luego del procedimiento quirúrgico.

    OpenAIRE

    Alvarado Villegas, Marcos Ricardo

    2013-01-01

    El cáncer de tiroides constituye la neoplasia endocrinológica más frecuente, con 10 casos anuales por 100.000 habitantes(Estados Unidos), siendo el carcinoma papilar el tipo histológico más prevalente y el que comúnmente es identificado en estadíos iniciales con buen pronóstico. (1,2,3) Los factores de riesgo para desarrollo de cáncer a partir de un nódulo tiroideo incluyen historia de radiación en cabeza y cuello, edad menor a 20 o mayor de 45 años, bilateral, nódulo mayor de 4 cm, masa e...

  6. Cirugía radioguiada: extirpación de metástasis de un carcinoma papilar de tiroides Probe-guided surgery: metastases of a papillary thyroid carcinoma. Surgical Excision

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    A. R. Kowadlo

    2008-09-01

    Full Text Available Paciente de sexo masculino operado de Carcinoma Papilar Tiroideo (variedad folicular con recurrencia tumoral luego de tiroidectomía, linfadenectomía y Dosis Terapéutica de Iodo 131. Bajo tratamiento con hormonas tiroideas a dosis inhibitorias de TSH, persistencia de valores elevados de Tiroglobulina Plasmática e imágenes detectables en la Ecografía y Resonancia Magnética Nuclear ( RMN. Por la Dosis Terapéutica se sospechaba que las mismas concentrarían radioyodo. Se planificó por lo tanto cirugía radioguiada, según el protocolo del Instituto Gustave Roussy (modificado. Dosis Terapéutica de Iodo 131; al 4º día Rastreo Corporal Total en Cámara Gamma (RCT; al 5º día cirugía con sonda exploradora (gamma probe y a las 48 hs. poscirugía nuevo RCT. El procedimiento fue exitoso, pudiendo extirparse adenopatías metastásicas con la desaparición en el RCT posquirúrgico de las imágenes que fijaban francamente radioyodo en el preoperatorio. Los vlores de Tiroglobulina plasmática descendieron francamente con terapia hormonal de reemplazo, a los sesenta y noventa días postratamiento.A male patient with papillary thyroid cancer -folliculary variety- is chosen to be presented. After thyroidectomy, lymfhadenectomy and therapeutic dose of radioiodine treatments, cancer relapse was observed. After thyrotrophyn supressive therapy with l-thyroxine, a high serum thyroglobulin concentration was observed. The Ultrasonography ( US and Magnetic Resonance (MR images showed visible node structures in the neck. This node structures were probably going to concentrate I-131 as seen in the first whole body scan after therapeutic dose. Therefore a radio-guided surgery was planned as the best choice. (Institute Gustave Roussy protocol. A therapeutic dose of radioiodine (I-131 was given and up to the 4th day a whole body scan was performed. In the 5th day a gamma- probe-guided surgery was performed as well, and localized metastatic foci in the

  7. Usefulness of recombinant human TSH-aided radioiodine doses administered in patients with differentiated thyroid carcinoma Administración de dosis terapéuticas de radioyodo luego de TSH recombinante en pacientes con carcinoma diferenciado de tiroides

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    Fabián Pitoia

    2006-04-01

    Full Text Available The published studies confirming the safety and efficacy of rhTSH for diagnostic purposes have led to an increased interest in its use for preparation for radioiodine (RI dose administration in patients with recurrent or persistent differentiated thyroid carcinoma (DTC. In order to establish the efficacy of RI therapy after rhTSH, we have reviewed 39 rhTSH-aided radioiodine treatment in a series of 28 DTC patients. Patients were divided into two groups: GI (n=17, with previous thyroid bed uptake and undetectable thyroglobulin (Tg levels under levothyroxine treatment and GII (n=11, with proven metastatic local or distant disease. Median follow-up after the first rhTSH-aided radioiodine treatment was 32 ± 13 months (range 8 to 54 months. Sixteen patients (94% in GI were rendered disease free and one patient was shown to have persistent disease. In GII, the post therapy whole body scan showed pathological uptakes in all cases: in four patients in lungs, in four in mediastinum and in three in lateral neck. In two patients with mediastinum uptake, Tg levels were undetectable after rhTSH. In the follow-up, two patients with lateral neck uptake were rendered disease free, four patients died (three due to thyroid cancer and five out of the remaining patients have persistent disease. In conclusion, rhTSH aided therapy was helpful to eliminate normal thyroid bed remnants in 16/17 (94% patients (GI. rhTSH stimulated Tg was undetectable in two patients with mediastinal metastasis. We believe that rhTSH is a good alternative to levothyroxine withdrawal for the treatment of DTC with radioactive iodine, increasing the quality of life in these patients. Caution should be recommended in the follow-up of unselected DTC patients only with stimulated Tg levels.Los estudios publicados que confirman la seguridad y eficacia de la TSH recombinante (rhTSH llevaron a un incremento en el interés para su uso como adyuvante terapéutico en el CDT (ablación o tratamiento

  8. Cáncer de tiroides. Caracterización en la provincia de Cienfuegos (2006-2010 Thyroid Cancer. Characterization in the Province of Cienfuegos (2006-2010

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    Álvaro Enrique Galeano Tenorio

    2012-07-01

    Full Text Available

    Fundamento: el cáncer de tiroides es el carcinoma endocrino más común, aunque solo represente un 1% del total de tipos cáncer. Su incidencia parece aumentar un 4% cada año, y en la actualidad es el octavo cáncer más frecuente en mujeres, apareciendo fundamentalmente en las edades comprendidas entre los 25 y 65 años.
    Objetivo: caracterizar el comportamiento del cáncer de tiroides en la provincia de Cienfuegos.
    Métodos: se realizó un estudio descriptivo, ambiespectivo, de corte longitudinal, con un total de 62 pacientes operados en el servicio de Cirugía General del hospital Dr. Gustavo Aldereguía Lima, durante el quinquenio 2006-2010. Las variables estudiadas: tasas de incidencia anual, edad, sexo, localización y tipo histológico del tumor, y estado actual de los pacientes. Resultados: el mayor número de pacientes correspondió al sexo femenino, siendo el carcinoma papilar la variante histológica más diagnosticada (85,19 %. La incidencia mayor se registró en el año 2010. El grupo edades de 41 a 50 años fue el más representativo. El mayor número de cánceres (79,03 % se diagnosticaron en el estadio I.
    Conclusiones: la propia incidencia elevada del cáncer de tiroides en la provincia de Cienfuegos, en los últimos cinco años, ha hecho que la vigilancia sobre esta afección se haya incrementado, lo cual se evidencia por el diagnóstico en etapas tempranas, resultado de este estudio.

    Background: Thyroid cancer is the most common endocrine carcinoma, even when it represents only 1% of all cancers. Its incidence appears to increase in a 4% each year, and today is the eighth most common cancer among women, appearing mainly in the ages between 25 and 65 years old. Objective: To characterize the behaviour of thyroid cancer in the province of Cienfuegos. Methods: A

  9. Sentinel node radioguided biopsy in surgical management of the medullary thyroid carcinoma A case report.

    Science.gov (United States)

    Boni, Giuseppe; Mazzarri, Sara; Grosso, Mariano; Manca, Giampiero; Biricotti, Marco; Ambrosini, Carlo Enrico; Fregoli, Lorenzo; Puccini, Marco; Caldarelli, Claudio; Spisni, Roberto

    2014-01-21

    Il carcinoma midollare della tiroide è raro. Il suo trattamento è chirurgico e consiste in una tiroidectomia totale associata a dissezione dei linfonodi centrali. L’opportunità della linfoadenectomia dei linfonodi cervicali laterali è argomento controverso. Per ridurre l’estensione della dissezione dei linfonodi laterocervicali ai casi in cui tale procedura sia effettivamente necessaria abbiamo eseguito la tecnica della biopsia del linfonodo sentinella, già praticata in altra patologia tumorale, in un caso di carcinoma midollare, sporadico, diagnosticato con ecografia, determinazione dei livelli di calcitonina serica e citologia dell’agoaspirato. All’ecografia non si evidenziavano linfonodi cervicali centrali o laterali. Abbiamo eseguito mappaggio preoperatorio dei linfonodi sentinella iniettando Tecnezio 99-m nel nodulo tiroideo. La paziente è stata poi sottoposta a tiroidectomia totale e biopsia radioguidata dei linfonodi sentinella. L’esame istologico ha confermato la presenza di un carcinoma midollare della tiroide e di micrometastasi in due linfonodi sentinella situati nel compartimento laterale destro. Dopo la tiroidectomia l’intervento è stato completato con dissezione dei compartimenti centrale e laterala destro. Al followup non sono stati rilevati livelli di calcitonina serica nè basali nè dopo stimolazione con pentagastrina. Si tratta del primo caso, riportato in letteratura, che dimostra l’utilità della biopsia radioguidata del linfonodo sentinella nella stadiazione linfonodale e del trattamento chirurgico del microcarcinoma midollare della tiroide. Tale biopsia può essere utile ad eseguire la dissezione linfonodale laterale solo nei pazienti con provato coinvolgimento dei linfonodi laterali del collo e quindi a ridurre l’entità della dissezione e delle relative complicanze.

  10. Cáncer anaplásico de tiroides de manejo quirúrgico

    OpenAIRE

    LOBOS M,ADRIANA; VILLAGRÁN R,DIEGO; OPAZO T,CAROLINA; Cardemil M,Felipe

    2009-01-01

    Introducción: El Cáncer Anaplásico de Tiroides corresponde al 2 a 5% del total de cánceres tiroideos. Afecta a mujeres en la sexta o séptima década de la vida, presentándose como masa cervical pétrea de crecimiento rápido, adherida a planos profundos. El tratamiento incluye cirugía, quimioterapia y radioterapia, siendo de elección el tratamiento multimodal. Objetivo: Conocer los resultados de una serie de casos manejados quirúrgicamente en el Hospital Dr. Gustavo Fricke de Viña del Mar. Pacie...

  11. Pertinencia de la gammagrafía de tiroides en un servicio de medicina nuclear de referencia del oriente colombiano / Pertinence of Thyroid Scan in a Nuclear Medicine Department in Eastern Colombia / Relevância da cintilografia da tireóide em um centro de referência de medicina nuclear no leste colombiano

    Directory of Open Access Journals (Sweden)

    Liset Sánchez-Ordúz, MD.

    2015-03-01

    Full Text Available Introducción: La gammagrafía de tiroides es un examen frecuentemente empleado en el estudio de la enfermedad tiroidea. Se recomienda su realización en el paciente con tirotoxicosis, nódulo tiroideo con citología indeterminada y en la búsqueda de tiroides ectópica. Objetivo: Determinar la pertinencia de la solicitud de la gammagrafía tiroidea en un servicio de medicina nuclear de referencia del oriente colombiano. Metodología: Estudio observacional, corte transversal retrospectivo tipo descriptivo. Se evaluaron las gammagrafías de tiroides realizadas en la unidad de medicina nuclear de la clínica Carlos Ardila Lulle durante 3 meses consecutivos que en la hoja de solicitud incluyeran todas las variables de interés. Se registró la indicación del estudio, formación académica del médico que solicitaba el examen, sexo del paciente, presencia concomitante de TSH con su valor respectivo y el consumo de levotiroxina previo al examen. Adicionalmente se registró el resultado gammagráfico. Resultados: 277 gammagrafías fueron analizadas, 244 (88% eran mujeres. EL 67% no estaban correctamente indicadas y de estas el 32% de los pacientes estaban recibiendo suplencia hormonal, la cual fue suspendida 25 días antes de la realización del examen. Los médicos generales y médicos especialistas no endocrinólogos tienen la probabilidad de 9.08 veces y 9.37 veces respectivamente de no indicar adecuadamente la gammagrafía tiroidea respecto a los médicos endocrinólogos. Conclusiones: Dos de cada 3 gammagrafías tiroideas que se realizaron en un servicio de medicina nuclear de referencia del oriente colombiano no están adecuadamente indicadas, teniendo esto un impacto en la salud pública. [Sánchez-Orduz L, Wandurraga-Sánchez EA, García RE, Camacho PA. Pertinencia de la gammagrafía de tiroides en un servicio de medicina nuclear de referencia del oriente colombiano. MedUNAB 2015; 17(3: xx-xx]. Introduction: Thyroid scan is a test frequently

  12. Enfermedad de Graves y cáncer de tiroides. Reporte de caso.

    OpenAIRE

    Manrique-Hurtado, Helard; Servicio de Endocrinología, Hospital Nacional Arzobispo Loayza. Lima.; Pinto-Valdivia, Miguel; Servicio de Endocrinología, Hospital Nacional Cayetano Heredia. Facultad de Medicina Alberto Hurtado, Universidad Peruana Cayetano Heredia. Lima.; Acosta-Chacaltana, Max; Servicio de Endocrinología, Hospital Nacional Arzobispo Loayza. Lima.

    2011-01-01

    Se reporta el caso de una mujer de 62 años con antecedente de cáncer de recto curado, con Enfermedad de Graves de reciente diagnóstico. El examen físico mostró un bocio difuso y presencia de un nódulo en el polo inferior del lóbulo derecho. El perfil tiroideo mostró un TSH suprimido y hormonas tiroideas aumentadas. Los anticuerpos antitiroideos fueron negativos. La ecografía de tiroides confirmó la presencia de un nó...

  13. Multidisciplinary approach to follicular thyroid carcinoma with giant mandibular and multiple sites metastases Case report.

    Science.gov (United States)

    De Pasquale, Loredana; Rabbiosi, Dimitri; Bardazzi, Alessandro; Autelitano, Luca; Moro, Giacomina Pierina; Ghilardi, Giorgio

    2014-01-01

    I tumori metastatici in genere hanno una cattiva prognosi, con sopravvivenza breve e raramente sono candidabili al trattamento chirurgico. Nel caso dei carcinomi differenziati della tiroide, la prognosi è solitamente migliore, grazie alla possibilità di un approcio multidisciplinare e soprattutto al trattamento radiometabolico dei secodarismi, dopo l’asportazione del tumore primitivo. Il caso presentato riguarda una donna di 65 anni, che è giunta alla nostra osservazione per una tumefazione mandibolare, risultata successivamente una metastasi da carcinoma follicolare della tiroide, a partenza da un voluminoso gozzo cervico-mediastinico normofunzionante, con ulteriori secondarismi a livello polmonare. Dopo un accurato studio pre-operatorio la Paziente è stata sottoposta a resezione della mandibola sinistra con ricostruzione mediante una protesi metallica e a tiroidectomia totale. Successivamente è stata trattata con quattro cicli di terapia radiometabolica con buona risposta. La Paziente è viva, senza ulteriore progressione di malattia a un follow-up di quarantasei mesi. Anche nei casi di tumori differnziati della tiroide in fase metastatica, l’opzione chirurgica va presa in considerazione per consentire alle terapie complementari di migliorare la prognosi in termini di sopravvivenza.

  14. Estudio de polimorfismos genéticos en tiroiditis autoinmune

    OpenAIRE

    Iglesias López, Rosa Ana

    2015-01-01

    [ES]Estudio epidemiológico caso-control para comprobar la hipótesis de que ciertos polimorfismos genéticos relacionados con las citosinas y con el proceso de autofagia pueden modificar el riesgo de presentar tiroiditis autoinmune. Se realiza el estudio sobre 200 pacientes con tiroiditis autoinmune reclutados en el Servicio de Endocrinología y Nutrición en el Complejo Asistencial Universitario de Salamanca, en los que se confirma la ausencia de diferencias en cuanto a características epidemiol...

  15. Cirugía mínimamente invasiva de tiroides y paratiroides Minimally invasive surgery of thyroids and parathyroids

    OpenAIRE

    2005-01-01

    Bajo el término de cirugía mínimamente invasiva de tiroides y paratiroides se engloban una serie de procedimientos terapéuticos orientados a la solución de la patología endocrina responsable de la enfermedad, con una agresión quirúrgica limitada y con resultados estéticos y confort postoperatorio superior al estándar del abordaje convencional. Su aplicación ha venido de la mano del desarrollo de nuevos métodos de imagen y de instrumentos que permitan realizar disección, en espacios muy limita...

  16. Tiroides lingual: un nuevo abordaje quirúrgico Lingual thyroid: a new surgical approach

    Directory of Open Access Journals (Sweden)

    I. Zubillaga Rodríguez

    2004-10-01

    Full Text Available El tiroides lingual es una rara anomalía congénita del desarrollo tiroideo resultante de la ausencia de descenso del mismo desde el foramen caecum hasta la localización prelaríngea habitual. Presentamos el caso de una paciente en edad postmenopáusica con diagnóstico anatomopatológico de tiroides lingual de gran tamaño y localización profunda en la base de la lengua que producía disfagia y dificultad respiratoria crecientes. Asimismo, planteamos un nuevo abordaje quirúrgico para la resección combinando cervicotomía media, pull-through lingual y glosotomía media. Se discuten las distintas pruebas complementarias para llegar a su diagnóstico y se revisan las diferentes técnicas quirúrgicas habitualmente empleadas en su tratamiento concluyendo con las ventajas del abordaje empleado en este caso.Lingual thyroid is an uncommon congenital disorder of thyroid gland development, resulting in a lack of descend of the gland from the foramen caecum to his normal prelaringeal location. In this paper we present a case of a postmenopausic patient presenting with a big size lingual thyroid deeply located in the base of the tongue, suffering increasing disphagia and respiratory impairment. For tumor resection, we chose a surgical approach combining a cervical submental incision, lingual pull- through and midline glossotomy. We discuss the different image studies recommended for proper diagnosis also reviewing the most common surgical techniques used for treatment, as compared with the approach we have described in this case.

  17. Estimación de la Incidencia de Cáncer de Tiroides en Capital Federal y el Gran Buenos Aires (período 2003-2011 Incidences Rates of Thyroid Cancer in Buenos Aires (2003-2011

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    Eduardo N Faure

    2012-03-01

    Full Text Available La incidencia del cáncer de tiroides ha aumentado significativamente en las últimas décadas en el resto del mundo. En Argentina no existe un registro nacional de cáncer por lo que la incidencia del mismo no puede establecerse. Por lo tanto, nuestro objetivo fue estimar la incidencia de cáncer de tiroides en la población de la Ciudad Autánoma de Buenos aires y Gran Buenos Aires así como la relación por género y la histología en el período de 2003 hasta 2011. Asumiendo que la población de afiliados a la Obra Social de la Policía Federal Argentina es representativa de los habitantes de Buenos Aires y el conurbano calculamos que la incidencia es de 6,51 casos/100.000 habitantes/año, con un incremento en 25 años mayor al doble, con predominio del carcinoma papilar frente al folicular.Thyroid cancer incidence has significantly risen worldwide in the last decades. In Argentina, there is no national cancer registry; therefore its incidence can not be established. The objective of this study was to estimate the incidence of thyroid cancer in the population of Buenos Aires City and suburbs, and the relationship between gender and histology over the period 2003-2011. Assuming that the population affiliated to the Social Security of the Argentine Federal Police is representative of the inhabitants of Buenos Aires City and suburbs, we estimate an incidence of 6.51 cases/100,000 population/year, with an increasing incidence of almost double from 1981-1986 to 2003-2011. An increase in papillary thyroid cancer was mainly responsible for this rising trend. Incidence rates were higher for females (11.76/100,000 women compared to those for males (2.65/100,000 men. Among men and women of all ages, the highest rate of incidence was for tumor size < 1 cm.

  18. ANÁLISIS PROTEÓMICO DE CULTIVOS PRIMARIOS DE TIROIDES

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    Nancy Echeverry

    2011-01-01

    Full Text Available En el presente estudio se identificaron proteínas de expresión constitutiva, como vimentina, actina, tubulina, proteína de choque térmico de 60 kDa, peroxirredoxina y la ATP sintasa mitocondrial, en cultivos primarios de tiroides normales y de carcinoma papilar de tiroides. Se establecieron las condiciones de extracción, solubilización, análisis cuantitativo y cualitativo de dichas proteínas, y se buscaron las mejores condiciones de isoelectroenfoque (IEF en la electroforesis en dos dimensiones (2D. En la extracción y solubilización de las proteínas se evaluó la presencia o ausencia de anfolitos y sales, se obtuvo un mejor resultado empleando en el amortiguador de extracción sales como Tris-HCl y acetato de magnesio que incrementan la solubilidad de las proteínas. Para la cuantificación se recomienda el uso conjunto de técnicas colorimétricas con la electroforesis SDS-PAGE tiñendo con azul de Coomassie y corroborando los resultados mediante western blot, lo cual permite, además, verificar la integridad de las proteínas. Respecto a la electroforesis en dos dimensiones, se obtuvieron geles con un mayor número de manchas (spots, resueltos, enfocados y reproducibles empleando en el IEF gradientes inmovilizados de pH de 4-7 y voltaje final de 8.000 V. Las proteínas se identificaron mediante el análisis bioinformático de los geles 2D con el programa PDQuest (PDQuest 7.2, Bio-Rad® y MALDI-TOF.

  19. Evaluación ultrasonográfica de la tiroides en crías de vacas lecheras tratadas con yodo en el preparto

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    M Noro

    2013-01-01

    Full Text Available El objetivo del estudio fue determinar ultrasonográficamente el tamaño de la glándula tiroides y la ganancia de peso de terneros crías de vacas suplementadas con yodo (I en el preparto. Se utilizaron 14 terneros Holstein-Friesian, crías de 7 vacas suplementadas con I a los 7 meses de gestación (I-S, 1,6 g/vaca, Lipiodol® y de 7 vacas no suplementadas (I-C, pastoreando praderas con bajo contenido de I. A todos los terneros se les realizó un examen ultrasonográfico de la glándula tiroides a los 36 y 128 (± 7,5 días de edad y se determinó el peso y la ganancia diaria de peso (GPD desde el nacimiento hasta los 26 y 110 (± 7,5 días de edad. El grosor del istmo de la tiroides a los 36 días de edad fue similar entre grupos (P > 0,05, disminuyendo a los 128 días de edad de forma más marcada en el grupo I-C (P 0,05. Los pesos y las GPD de ambos grupos fueron similares. Se concluye que una suplementación con I durante el preparto a vacas mantenidas a pastoreo sobre praderas con bajo contenido de I condicionó en sus crías un menor tamaño del lóbulo izquierdo de la glándula tiroides, sin alterar su peso o la GPD.

  20. Metástasis en cuero cabelludo como primera manifestación de cáncer de tiroides mixto folicular-papilar

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    S. Junquera Bañares

    2014-08-01

    Full Text Available La aparición de metástasis a distancia en los cánceres diferenciados de tiroides es poco frecuente, y cuando se detectan en piel, suelen darse en el contexto de una enfermedad diseminada después de muchos años de evolución desde el diagnóstico. Se presenta el caso de una paciente de 77 años, sin enfermedad tiroidea conocida que debutó con una metástasis en región parietooccipital del cuero cabelludo en la que se identificó tejido tiroideo. En la ecografía tiroidea se identificó un nódulo informado como tumor folicular y el estudio de extensión precirugía fue negativo. Se le hizo tiroidectomía total más vaciamiento ganglionar del compartimento central y el estudio AP fue informado de carcinoma mixto folicular-papilar sin afectación ganglionar. En el RCT post-I131 (dosis de 104,7 mCi se detectaron micrometástasis pulmonares, y a los 2 meses de una segunda dosis de I131 (125 mCi, la tiroglobulina fue indetectable. El cáncer tiroideo debe incluirse en el diagnóstico diferencial de las metástasis cutáneas, puesto que su diagnóstico y tratamiento temprano, excepto en los casos de enfermedad muy avanzada, el pronóstico de su hallazgo suele ser más favorable que en el resto de tumores sólidos.

  1. Patogénesis molecular del carcinoma de esófago

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    A. M. Jiménez

    2003-06-01

    Full Text Available El carcinoma de esófago existe en dos formas principales: el carcinoma de células escamosas o pavimentoso y el adenocarcinoma. En este artículo se describen las principales alteraciones genéticas halladas en ambos tipos de carcinomas y la implicancia de éstas en la patogénesis de los mismos. La secuencia de estas alteraciones se correlaciona con la histogénesis, lo que permite comprender la progresión tumoral desde el epitelio normal al carcinoma invasor. Se establece también una comparación entre la patogénesis molecular del cáncer de esófago y del desarrollo de estos carcinomas con el modelo de la patogénesis molecular del cáncer colorrectal.Carcinoma of the esophagus is present in two distinct morphological cell types: squamous or pavimentous cell carcinoma and adenocarcinoma. In this article, the main genetic alterations found in both types of carcinomas and their implications are described. The sequence of these alterations is related to histogenesis, making it possible to understand tumor progression from normal epithelium to invasive carcinoma. A comparison is attempted between the molecular development of esophagus carcinomas and that of colorectal carcinoma.

  2. Carcinoma papilar tiroideo variante esclerosante difuso Diffuse Sclerosing Variant of Papillary Thyroid Carcinoma

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    JL D'Addino

    2012-06-01

    Full Text Available Objetivo: Presentar un carcinoma inusual de tiroides y de difícil diagnóstico, su manejo y evolución. Caso clínico: Paciente de raza blanca de 37 años, desde hace 6 meses presentaba formación laterocervical derecha asintomática y ecografía con nódulo tiroideo sobre tiroides heterogénea. Sin antecedentes personales ni familiares de importancia. La punción de una adenopatía regional resultó adenocarcinoma y la del nódulo tiroideo: quiste coloide. Se intervino quirúrgicamente efectuándose un vaciamiento radical derecho y la biopsia por congelación informó carcinoma tiroideo por lo que se completó con vaciamiento cervical izquierdo y tiroidectomía total. La biopsia diferida fue: "carcinoma papilar difuso esclerosante con metástasis ganglionares en 5 de 6 ganglios peritiroideos derechos y en 7 de 9 ganglios cervicales, correspondiendo a 4 derechos y 3 izquierdos. Estadio: I, T3-N1b-M0. Se trató posteriormente con 3 dosis de yodo 131 y radioterapia externa por compromiso ganglionar mediastinal. A 6 meses de seguimiento hasta el presente, continúa libre de enfermedad. Los individuos con insulinorresistencia y síndrome metabólico presentan aumento del tamaño de la glándula tiroides y mayor prevalencia de nódulos. Tanto la insulina como la TSH se constituyen en factores de crecimiento para las células tiroideas, y los niveles de TSH son mayores en individuos con síndrome metabólico, presente en este caso. Conclusión: El carcinoma papilar, variante difusa esclerosante es un tumor inusual, de evolución más agresiva y con rápido compromiso extratiroideo y metástasis a distancia. Los autores declaran no poseer conflictos de interés.Objective: To report a case of a diffuse sclerosing papillary carcinoma, a rare type of thyroid carcinoma, of difficult diagnosis, its management and further follow-up. Case: 37-year-old white male who presented with a 6-month history of sudden onset of an asymptomatic right-sided lateral

  3. Mitral valve prolapse in patients with Hashimoto's thyroiditis Tiroiditis de Hashimoto y prolapso de la válvula mitral

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    Federico Uribe Londoño

    1991-03-01

    Full Text Available The prevalence of mitral valve prolapse was determined en 67 patients with Hashimoto's thyroiditis (TH, and in 48 healthy control individuals. Mitral valve prolapse was found in 14 of 67 (20.9% patients with TH and in none of the controls. The presence of mitral valve prolapse should be investigated whenever this diagnosed. Se investigó la prevalencia de prolapso de la válvula mitral por ecocardiografía modo M y bidimensional en 67 pacientes que cumplían como mínimo tres de los criterios de Fisher y asociados, para el diagnóstico clínico de tiroiditis de Hashimoto (TH y que fueron comprobados por biopsia por aspiración de la glándula tiroides, con aguja fina, leída según los criterios de Kline; se incluyeron como controles 48 individuos normales. Se encontraron 14 casos (20.9% de prolapso de la válvula mitral en los pacientes con TH y ninguno entre los controles. Desconocemos por qué en esta serle la frecuencia del prolapso de la válvula mitral en pacientes con TH fue solamente la mitad de la observada en otra serle (41%, a pesar de que se utilizaron procedimientos y criterios diagnósticos similares. Con base en los hallazgos se sugIere buscar el prolapso de la válvula mitral en todo paciente con TH.

  4. Cushing syndrome secondary to a medullary thyroid carcinoma: report of a case and review of the literature = Síndrome de Cushing secundario a carcinoma medular de tiroides: descripción de un caso y revisión de la literatura

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    Gutiérrez Restrepo, Johnayro

    2014-08-01

    Full Text Available We report the case of a 29-year old female who was evaluated because of a thyroid tumor. The initial pathological classification was an insular thyroid carcinoma. There was strong involvement in the neck, mediastinum and lungs. Three years after receiving specific therapy for her thyroid neoplasia, she developed a Cushing syndrome and liver lesions suggestive of metastases from the primary tumor. A review of the previous pathological material revealed a medullary thyroid carcinoma producing ACTH, instead of the insular carcinoma. Based on this case a review of the literature is presented.

  5. Tiroiditis subaguda como causa de síndrome febril prolongado. Presentación de un caso

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    Lisbet María Cortez Mijares

    2012-12-01

    Full Text Available Paciente femenina de 44 años de edad que un mes antes de acudir a Cuerpo de Guardia de Medicina del Hospital Mártires del 9 de Abril, comenzó con dolor ligero en la región lateral del cuello con signos de inflamación, dolores articulares, malestar general, pérdida de peso. Además presentaba fiebre de 38,5 ºC de 15 días de evolución, que aparecía fundamentalmente en horario vespertino. No se recogieron antecedentes de proceso infeccioso respiratorio previo. Fue hospitalizada y se le realizó hemocultivo que resultó positivo para Klebsiella pneumoniae. Se trató con antibióticoterapia y antiinflamatorios, con lo que se logró mejoría clínica. Egresó con diagnóstico de síndrome febril prolongado y tiroiditis de Quervain. A los 15 días del egreso la paciente se encontraba asintomática.

  6. Estimulación iterativa (EI de TSH endógena (TSH-En mediante el uso de la hormona liberadora de tirotrofina (TRH en pacientes portadores de carcinoma diferenciado de tiroides Rapid iterative stimulation (IS of endogenous tsh (En-TSH utilizing thyrotropin releasing hormone (TRH in patients with differentiated thyroid carcinoma (DTC

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    O.J. Degrossi

    2007-06-01

    -170 UI/L ( 63 ± 3 UI/L ; G-2 A: 71 ± 41 ; G-2B, 63 ± 42. Conclusiones: Estos hallazgos indican que a la metodología propuesta es adecuada para acortar sensible-mente el tiempo de abstinencia de opoterapia y reducir la sintomatología del H que pasa desapercibida en la mayoría de los casos; b los valores de TSH-En obtenidos son similares y aun superiores a los alcanzados por suspensión de opoterapia por lapsos prolongados; c el empleo del RCT con 99mTc como indicador de tejido captante disminuye el uso terapéutico a ciegas de 131I al señalar casos de ausencia de concentración y permite, cuando sea necesario, obtener anticipadamente 131I para su empleo terapéutico.In the follow up (F of p with DTC it is necessary to obtain high figures of serum TSH for determination of serum Tg and 131I scan (WBS. For this object, he method, for a long time, was to withdrawal thyroid hormone therapy (generally l-T4 that produce hypothyroidism with the inconvenient for the p, dramatics in certain cases. Our objective was to increase TSH by IS to shortening time of L-T4 withdrawal for F, ablation (A or treatment (T with 131I. In 37 p. with DTC (G-1, aged 19-78 y., 34 with pap. DTC and 3 with foll. form, 25 females, 12 males, 43 studies were carried out; 6 p carried 2 studies. The group was divided in 2 sub-groups: G-1A,7 p derived for A; G-1 B 36 p. for F or T with 131I. Six p carried out 2 studies; 4 of them for A and for F and 2 realizes 2 times F. All p treated with l-T4 replaced this hormone for T3 during 3 weeks ,that was withdrawal the day before IS. In G-1A, between 8/10 days after surgery they begin IS. IS: At days 1, 3, 5 and 6, the p were injected i.v. with 200 mcg of TRH; at 30 minutes of the 3rd injec. blood TSH determination ; immediately 370 MBq of 99mT was administered and at 30 minutes a WBS was carried out. At 30 minutes of the 4th injec. blood figures of TSH, Tg and Tg-ab were determined; immediately the activity of 131I indicated for each group was given to the p

  7. Rabdomiolisis y miopatía como únicas manifestaciones de hipotiroidismo severo secundario a tiroiditis de Hashimoto Rhabdomyolysis and myopathy as the only manifestations of severe hypothyroidism secondary to Hashimoto’s thyroiditis

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    Brito, Juan P.; Juan P. Domecq; Gabriela Prutsky; Germán Málaga; Larry Young; Kargi, Atil Y.

    2013-01-01

    La tiroiditis de Hashimoto constituye la causa más frecuente de hipotiroidismo en las regiones sin deficiencia de yodo, es más frecuente en mujeres y muchas veces tiene asociación familiar. Los síntomas y signos del hipotiroidismo son sistémicos y dependen de la duración e intensidad de la deficiencia de la hormona tiroidea. Las manifestaciones neuromusculares, son excepcionalmente los únicos signos clínicos. Se presenta el caso de un paciente joven con una miopatía severa con rabdomiolisis c...

  8. Factores de riesgo asociados al cáncer de la glándula tiroides en mujeres: Risk Factors Associated With Thyroid Cancer Gland in Women

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    Fabio Eduardo Bosso

    2011-12-01

    Full Text Available Contexto: El cáncer como factor de estudio en el escenario mundial, la transición epidemiológica y la incidencia de la enfermedad en países emergentes. Objetivo: hacer un levantamiento bibliográfico sobre los factores de riesgo asociados al cáncer de tiroides en mujeres. Material e Métodos: Fue realizada una búsqueda en el primer semestre del 2011 en la base de datos virtual Embase utilizando tres escritores en ingles thyroid cáncer, risk factors y women. La búsqueda fue reducida para artículos publicados en los años 2010 y 2011 y estudios controlados. Fueron seleccionados trece artículos y fueron incluidos diez. Resultados: Fue posible agrupar los factores de riesgo presentados en los estudios incluidos en tres grupos: factor ambiental (n = 4, fármaco o tratamiento utilizado (n = 3 y, por fin, características de los individuos y sus hábitos cotidianos (n = 3. Conclusión: Mujeres, bajo IMC, edad de inicio del cáncer, obesidad, tiroiditis de Hashimoto y hábito de alimentarse con un consumo excesivo de vegetales crucíferos, son factores de riesgo asociados al cáncer de la glándula tiroidesBackground: The cancer study as a factor in the global scenario, the epidemiological transition and the incidence of disease in developing countries. Objective: To review the literature on risk factors associated with thyroid cancer in women. Methods: We performed a search in the first half of 2011 in virtual database EMBASE using three key-words in English: thyroid cancer, risk factors and women. The search was refined to articles published in the years 2010 and 2011 and controlled studies. We selected thirteen articles and ten were included. Results: Is possible cluster the risk factors presented in included studies into three groups: environmental factors (n=4, drug use or treatment (n = 3 and, finally, characteristics of individuals and their daily habits (n = 3. Conclusion: Women, low BMI, age at onset of cancer, obesity, Hashimoto

  9. Stating of cervical carcinoma using magnetic resonance imaging; Estadificacion del carcinoma de cervix por resonancia magnetica

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    Oleaga, L.; Vela, M. C.; Grande, J.; Cura del, J. L.; Grande, D. [Hospital de Basurto. Bilbao (Spain)

    1999-07-01

    The infiltration of the parametrium represents one of the most important factors that determine the prediction and treatment of cervical carcinoma. Our objetive is to evaluate the utility of magnetic resonance imaging (MRI) in the staging of cervical carcinomas, to establish the reliability of this technique and to carry out a comparative study of the sequences used to demonstrate the parametrial invasion. We have carried out a retrospective study on 44 patients diagnosed with cervix neoplasia, using clinical exploration and performing a biopsy. the MRI studies have been carried out using a 1 Tesla magnet and the sequences used have been SE T1, Se proton density (PD) and T2 and dynamic GRE after administering gadolinium intravenously in the axial and sagital projections. The stages determined by MRI have been compared to the anatomopathological stages of the surgical specimens in cases where surgery was carried out and with the clinical stage in cases where no radical surgery was carried out. A diagnosis value of MRI has been determined to demonstrate the parametrial invasion, comparing the SE T2 sequence with the dynamic GE sequence with gadolinium. We calculate the volume of the tumour in the MRI studies to evaluate the difference of the volume between patients with tumoral stages that are clinically surgical and not surgical. MRI determines the invasion of the parametrium with a sensitivity of 88.8%, a specificity of 80% a positive value of 76.1%, a negative predictive value of 90.9% and a reliability of 83.7%. For the SE T2 sequences the sensitivity was 86.6%, the specifity 80%, the posistive predictive value 81.25%, the negative predictive value 85.7% and the reliability 83.3%. For the dynamic GE sequence with intravenous gadolinium the sensitivity was 86.6%, the specifity 86.6%, the posistive predictive value 86.6%, the negative predictive value 86.6% and the reliability 86.6%. The use of the dynamic GE sequence after the intravenous administration of

  10. Toxoplasmosis as a cause of subacute thyroiditis in dogs (La toxoplasmosis como causa de tiroiditis subaguda en el perro

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    Castillo, Víctor A.:

    2006-03-01

    Full Text Available Resúmen La tiroiditis subaguda es causada por la acción de agentes infecciosos. Clínicamente se observa bocio, disfonía y disfagia. Respecto a la función tiroidea, puede haber hipertirotoxinemia debida a la ruptura de folículos, en tanto que la concentración de TSH se mantiene normal y la captación de yodo está disminuída. El objetivo del presente trabajo fue investigar si la toxoplasmosis en perros puede afectar la morfología y función tiroidea. Se estudiaron 8 perros con toxoplasmosis comprobada (título de anticuerpos por aglutinación directa [AD] > 1/128. La palpación tiroidea impresionó bocio, confirmado por ecografía de la glándula. La medición de TSH fue normal, en tanto que la tiroxina resultó normal en 4 casos, elevada en 3 y disminuída en un caso, sin signos de tirotoxicosis ni de hipotiroidismo respectivamente. Los perros fueron tratados con clindanmicina (12,5 mg/kg oral cada 12 hs por 30 días, siendo reevaluada la función y morfología tiroidea. En los 8 casos hubo remisión de los signos tiroideos y normalización de la tiroxina, al igual que la signología clínica. Se halló una correlación positiva entre título de anticuerpos AD y el volúmen tiroideo (r = 0,78, p160 %. Se concluye que la toxoplasmosis afecta la morfología tiroidea pudiéndose alterar su funcionamiento y desencadenar tiroiditis autoinmune en individuos predispuestos. Abstract Subacute thyroiditis is caused by the action of infectious agents Clinically, goitre, dysphonia and dysphagia can be observed. Hyperthyroxinemia may be present, while thyrotropine (TSH concentration stays normal and iodine uptake is reduced frequently. The objective of the present work was to investigate if toxoplasmosis in dogs can affect thyroid morphology and function. The study was conducted on eight dogs with proven high T. gondii titres (Direct aglutination 160% in spite of being euthyroid during the acute period of toxoplasmosis. In conclusion, toxoplasmosis

  11. Carcinoma en quiste tirogloso Carcinoma in thyroglosal duct cyst

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    M.E. Storani

    2010-09-01

    Full Text Available El carcinoma diferenciado de tiroides en quiste tirogloso (CaQT es una rara entidad. En diferentes series de pacientes operados por quistes tiroglosos su incidencia fue del 0.7 al 1.07%. Luego de la extirpación del quiste por el procedimiento de Sistrunk, no hay consenso sobre la indicación de tiroidectomía total, radioablación y/o terapéutica supresiva con levotiroxina. El objetivo del Departamento de tiroides de SAEM, fue evaluar: formas de presentación, evolución clínica, métodos diagnósticos de utilidad y tratamiento para consensuar futuras conductas. Material y Métodos: Estudio multicéntrico, retrospectivo en 22 pacientes entre 10 a 69 años, 15 mujeres y 7 varones. Resultados: El tamaño de los quistes osciló entre 1 y 8 cm (Mediana= 3.0 cm, Χ ± DS= 3.7 ± 2.2 cm. La mitad de los pacientes presentó crecimiento del quiste en los 6 meses previos a la cirugía. La punción resultó sospechosa en 2/5 quistes y positiva en uno. La ecografía tiroidea evidenció nódulos en 4/13 casos (30%. Se realizó tiroidectomía en 17/22 pacientes (total: 15 y subtotal: 2. La histología del CaQT demostró carcinoma papilar en 21 y carcinoma folicular en uno. Hubo coexistencia de cáncer intratiroideo en el 23.5% de los casos, ninguno multicéntrico. Dos pacientes presentaron metástasis ganglionares y otro tuvo compromiso muscular (ninguno de ellos coexistió con cáncer intratiroideo. Se radioablacionó a 13 pacientes. En 9/11 pacientes la tiroglobulina permaneció indetectable durante el seguimiento (1 a 14 años. Conclusiones: 1 Realizar ecografía de cuello y punción ecoguiada a todo paciente con quiste tirogloso. 2 En caso de CaQT combinar simultáneamente tiroidectomía total y procedimiento de Sistrunk. 3 Evaluar radioablación complementaria y tratamiento supresivo con levotiroxina en cada caso. 4 Efectuar el seguimiento tal como en los carcinomas ortotópicos.Differentiated thyroid carcinoma (DTC in thyroglosal duct cyst (TGDC is

  12. Rol del virus del papiloma humano en el desarrollo de carcinoma oral: una revisión

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    M. Rebolledo Cobos

    Full Text Available El carcinoma escamocelular (CEC representa la entidad patológica maligna de mayor prevalencia en la cavidad bucal. Aunque múltiples estudios respaldan que la aparición de esta enfermedad es de carácter idiopático, factores de riesgo como el alcohol y la exposición al tabaco son elementos directamente desencadenantes de la aparición de esta entidad oncológica, sin dejar a un lado la predisposición a padecer cáncer oral (CO por parte de la codificación genética entre otros aspectos hereditarios. En la actualidad, se ha evidenciado que la infección por virus del papiloma humano (VPH y las lesiones que lo relacionan, están profundamente asociados como etiología potencial del CO y suelen tener relación con hábitos sexuales modificados. La profundización de conceptos, efectos y medios de diagnóstico eficaces para establecer relaciones existentes del VPH con el CO, biología del virus y comportamiento cancerígeno, fueron los objetivos de la presente publicación así mismo determinar factores de riesgo predisponentes a la malignización de las lesiones propias del VPH, su incidencia y prevalencia en la comunidad. La identificación clínica oportuna de las lesiones originadas por el VPH, permiten establecer de manera certera el comportamiento, evolución de la lesión y a su vez determinar la presencia de actividad displásica y/o anaplásica propiamente dicha. Cabe resaltar la importancia del empleo de exámenes auxiliares a la clínica, como lo es la citología exfoliativa, la biopsia, los análisis moleculares y genéticos, para establecer mancomunadamente y de manera certera el comportamiento, evolución y pronóstico de una afección por VPH.

  13. Cirugía mínimamente invasiva de tiroides y paratiroides Minimally invasive surgery of thyroids and parathyroids

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    D. Casanova

    2005-01-01

    Full Text Available Bajo el término de cirugía mínimamente invasiva de tiroides y paratiroides se engloban una serie de procedimientos terapéuticos orientados a la solución de la patología endocrina responsable de la enfermedad, con una agresión quirúrgica limitada y con resultados estéticos y confort postoperatorio superior al estándar del abordaje convencional. Su aplicación ha venido de la mano del desarrollo de nuevos métodos de imagen y de instrumentos que permitan realizar disección, en espacios muy limitados. A diferencia de la cirugía clásica de tiroides y paratiroides donde la técnica quirúrgica tiene amplias posibilidades de aplicación, en el abordaje cervicoscópico las indicaciones son más limitadas y se establecen en relación con las características de cada paciente. Con respecto a la patología tiroidea el tamaño del nódulo constituye el principal factor limitante, ya que en tamaños superiores a 3 cm los beneficios del procedimiento no son tan evidentes. Sin embargo, en la cirugía paratiroidea se dispone de un potencial superior dado que el adenoma responsable de la enfermedad se encuentra con frecuencia en posiciones anatómicas muy asequibles para este tipo de procedimientos. Por tanto, en pacientes con ausencia de patología tiroidea asociada, con patología unilateral basada en la información de la gammagrafía sestamibi y preferentemente en localizaciones inferiores, el abordaje cervicoscópico puede cumplir los requisitos antes expresados de eficacia, confort postoperatorio y corta estancia.The term minimally invasive surgery of thyroids and parathyroids encompasses a series of therapeutic procedures aimed at solving the endocrinal pathology responsible for the disease, with limited surgical aggression and aesthetic results and postoperative comfort on a par with the conventional approach. Its application has become possible with the development of new methods of imaging and instruments that make it possible to carry

  14. Fibromatosis mamaria, diagnóstico diferencial del carcinoma invasor: Reporte de un caso

    OpenAIRE

    DÍAZ C,M. LORENA  ; ARANCIBIA H,PATRICIA; Moyano S,Leonor; Burgos S,Nelson

    2009-01-01

    Introducción: La fibromatosis o tumor desmoide, es una lesión infrecuente del tejido conectivo, que corresponde al 0,2% de los tumores mamarios. No tiene potencial de dar metástasis pero presenta alta tasa de recidiva local debido a sus márgenes infiltrativos. Su etiología es desconocida. La presentación clínica e imagenológica es casi indistinguible a la de un carcinoma mamario. El diagnóstico es histológico y el tratamiento de elección es la resección quirúrgica. Reporte de caso: Mujer de 3...

  15. Rabdomiolisis y miopatía como únicas manifestaciones de hipotiroidismo severo secundario a tiroiditis de Hashimoto Rhabdomyolysis and myopathy as the only manifestations of severe hypothyroidism secondary to Hashimoto’s thyroiditis

    Directory of Open Access Journals (Sweden)

    Juan P. Brito

    2013-03-01

    Full Text Available La tiroiditis de Hashimoto constituye la causa más frecuente de hipotiroidismo en las regiones sin deficiencia de yodo, es más frecuente en mujeres y muchas veces tiene asociación familiar. Los síntomas y signos del hipotiroidismo son sistémicos y dependen de la duración e intensidad de la deficiencia de la hormona tiroidea. Las manifestaciones neuromusculares, son excepcionalmente los únicos signos clínicos. Se presenta el caso de un paciente joven con una miopatía severa con rabdomiolisis como la única manifestación de hipotiroidismo severo debido a tiroiditis de HashimotoHashimoto’s thyroiditis is the most frequent cause of hypothyroidism. In the regions with no iodine deficiency, it is more frequent in women and oftentimes has a familial association. The symptoms and signs of hypothyroidism are systemic and depend on the duration and intensity of the thyroid hormone deficiency. Neuromuscular manifestations are seldom the only symptoms and signs present. We present the case of a young patient with severe myopathy, where rhabdomyolysis was the sole manifestation of severe hypothyroidism secondary to Hashimoto’s thyroiditis

  16. [I costi farmacologici della terapia di conversione con farmaci biologici nel carcinoma del colon-retto con metastasi epatiche].

    Science.gov (United States)

    Giuliani, Jacopo; Bonetti, Andrea

    2016-08-01

    Riassunto. Lo scopo di questo studio è quello di valutare i costi dei farmaci (con particolare riferimento alle terapie con farmaci biologici) utilizzati nella terapia di conversione in una popolazione non selezionata di pazienti affetti da carcinoma del colon-retto in stadio avanzato, al fine di ottenere una resezione epatica R0. In questa rassegna sono stati selezionati i report completi e gli aggiornamenti di tutti gli studi clinici randomizzati (di fase II e fase III) che confrontassero almeno 2 regimi di terapia con farmaci biologici in prima linea in pazienti affetti da carcinoma del colon-retto in stadio avanzato di malattia. I costi dei farmaci sono stati ricavati dalla nostra Farmacia Ospedaliera e sono espressi in euro (€). Il nostro studio inizia con la valutazione di 683 abstract. 48 tria sono stati considerati adeguati per una successiva analisi. Una valutazione più approfondita ha portato all'esclusione di 37 trial, lasciando alla valutazione finale 11 studi clinici randomizzati (3 trial di fase II, per un totale di 522 pazienti, e 8 studi di fase III, per un totale di 7191 pazienti). I costi dei farmaci utilizzati nella terapia di conversione aumentano con la sostituzione del 5-fluorouracile con la capecitabina e, in misura maggiore, con l'introduzione degli agenti biologici. In questo lavoro sono presentati due punti chiave. Primo, i costi degli agenti farmacologici utilizzati nei regimi di prima linea a base di agenti biologici più comunemente utilizzati nel trattamento del carcinoma del colon-retto in stadio avanzato sono molto variabili. Secondo, i dati di efficacia dei regimi pubblicati, in termini di tassi di resezione, dipendono dalla selezione dei pazienti, dalle caratteristiche del tumore e dal tipo di schema di terapia.

  17. Patrón evolutivo de la incidencia de cáncer de tiroides en la Región de Murcia de 1984 a 2008

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    María Dolores Chirlaque

    2014-09-01

    Conclusiones: El cáncer de tiroides, de ser un tumor raro se ha convertido en un tumor emergente. El papilar muestra los mayores cambios per se y por incluir paulatinamente un mayor porcentaje de microcarcinoma.

  18. [Diffuse sclerosing papillary carcinoma mimicking chronic lymphocytic thyroiditis. A unusual neoplasm variant].

    Science.gov (United States)

    Pino Rivero, V; Pardo Romero, G; González Palomino, A; Pantoja Hernández, C G; Trinidad Ramos, G; Marcos García, M; Blasco Huelva, A

    2006-01-01

    We report the clinical case of a 39 years old female diagnosed as a chronic lymphocytic tiroiditis by F.N.A.B. with multinodular goiter of long evolution. The patient was operated by total thyroidectomy and her final anatomopathologic result was papillary carcinoma diffuse sclerosing variant. During the surgical act several cervical nodes were detected and removed being informed the most of them as metastasic. A review of the literature at respect of this malignant neoplasm is performed.

  19. Factores de recidiva del carcinoma hepatocelular tras resección quirúrgica con intención curativa

    OpenAIRE

    2011-01-01

    El carcinoma hepatocel•lular representa del 70-80% dels tumors hepàtics primaris. És la sisena neoplàsia més freqüent i la tercera causa més freqüent per càncer. Els factors de risc més importants són l'hepatitis B i C. La resecció quirúrgica és la primera opció terapèutica. La causa de la mort dels pacients sotmesos a resecció hepàtica amb intenció curativa és la recidiva. Les taxes de recidiva global arriben al 70-100% als 5 anys. Identificar els factors de risc de recidiva és important per...

  20. Analisis Ketahanan Hidup Lima Tahun Kanker Tiroid yang Dikelola di RSUP Dr. M. Djamil Padang

    Directory of Open Access Journals (Sweden)

    Oktahermoniza Oktahermoniza

    2013-09-01

    Full Text Available AbstrakKanker tiroid merupakan kanker yang jarang terjadi, namun kanker tersering pada organ endokrin. Tujuan penelitian ini untuk mengetahui ketahanan hidup lima tahun kanker tiroid yang di tatalaksana di RS Dr. M. Djamil Padang dari Januari 2007 sampai dengan Desember 2011. Metode: Subjek penelitian adalah 117 penderita kanker tiroid yang ditatalaksana di RS Dr. M. Djamil Padang dari Januari 2007 sampai dengan Desember 2011. Data dianalisis dengan pendekatan survival time menggunakan Kaplan-Meier survival curve dan Log rank test. Hasil: Median umur 39 tahun (range, 11 sampai 77 tahun, median waktu follow up 32 bulan (range, 1 sampai 70 bulan, median ukuran tumor 6 cm (range, 1 sampai 16 cm. Didapatkan 100 (85,5% % penderita sehat bebas tumor, 7 (6% penderita kambuh lokal, 1 (0,9% metastasis jauh serta 9 (7,7% penderita meninggal. Overall five survival rate pada penelitian ini 92,3%. Faktor umur, ukuran tumor, dan jenis histopatologi berhubungan secara bermakna dengan survival (p 0,000, (p= 0,046 dan (p= 0,000. Sedangkan faktor-faktor jenis kelamin, jenis operasi, dan terapi adjuvan tidak mempunyai hubungan bermakna dengan survival. Pembahasan: Umur, ukuran tumor, dan jenis histopatologi memiliki hubungan bermakna dengan survival. Jenis kelamin, jenis operasi, dan terapi adjuvan tidak tidak berhubungan bermakna dengan survival.Kata kunci: Umur, Ukuran Tumor, Jenis Histopatologi, Survival, Kanker TiroidAbstractThyroid cancer is a rare cancer, but most common in endocrine organ. The purpose of this research is to determine about at five year survival of thyroid cancer which recorded at RS M. Djamil Padang Hospital from January 2007 until December 2011. Methods: Subjects were 117 patients with thyroid cancer be recorded in hospital Dr. M. Djamil Padang from January 2007 to December 2011. Data were analyzed with the survival time using Kaplan-Meier survival curve and log rank test. Result: Median age 39 years (range, 11 to 77 years, median follow

  1. Carcinoma invasor de cérvix en Las Palmas : tipificación del virus del papiloma humano (VPH) y factores pronósticos

    OpenAIRE

    Arencibia Sánchez, Octavio

    2016-01-01

    Programa de doctorado: Patología Quirúrgica, Reproducción humana y factores psicológicos y el proceso de enfermar [ES]Estudio retrospectivo destinado a estudiar los carcinomas infiltrantes de cérvix (estadio FIGO IB y superiores) registrados en la Unidad de Ginecología Oncológica del Complejo Hospitalario Universitario Materno Infantil entre los años 1996 y 2013. El tamaño muestral final fue de 561 pacientes, de las que se contaba con material disponible...

  2. Síndrome de Gorlin-Goltz: manejo del carcinoma basocelular facial Gorlin-Goltz syndrome: management of facial basal cell carcinoma

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    Rocío Gilabert Rodríguez

    2013-03-01

    Full Text Available Introducción/objetivo: El síndrome de Gorlin-Goltz (SGG es un trastorno hereditario autosómico dominante que predispone principalmente a la proliferación de tumores como los carcinomas basocelulares y queratoquistes maxilares. Está causado por la mutación del gen Patched localizado en el cromosoma 9. Los carcinomas basocelulares que aparecen en pacientes con el SGG suelen ser múltiples, de aspecto clínico polimórfico y sin predilección por el sexo, detectándose a veces a edades precoces de la vida y afectando incluso a zonas no expuestas a la luz solar. Muestran un comportamiento clínico variable, si bien en ocasiones pueden ser muy agresivos, sobre todo a nivel facial. Con el fin de estudiar el comportamiento de los carcinomas basocelulares en los pacientes con SGG se ha realizado un estudio de los pacientes tratados en nuestro hospital durante el periodo comprendido entre 2001 y 2011 y que cumplían criterios de la enfermedad. Material y métodos: Se incluyeron 11 pacientes con diagnóstico clínico y/o genético de SGG. Se estudió la distribución según edad y sexo, manifestaciones clínicas, características histológicas, técnica quirúrgica empleada, presencia de recidiva y evolución de los pacientes. Resultados: Un 36% de los pacientes presentaron carcinomas basocelulares en la cara. El número de tumores por paciente osciló entre 9 y 21. El tratamiento preferido fue la exéresis quirúrgica, si bien todos los pacientes desarrollaron nuevas lesiones y recidivas que requirieron varios procedimientos. El estudio histológico reveló un contacto o proximidad del tumor con los márgenes quirúrgicos en el 28% de las lesiones. Conclusiones: En la literatura no hay evidencia suficiente para determinar el tratamiento de elección entre los distintos métodos disponibles para el manejo del carcinoma basocelular en el SGG. Es necesario un enfoque preventivo evitando la exposición al sol.Introduction/objective: Gorlin Goltz

  3. Valor predictivo pre-tratamiento del Índice Pronóstico Nutricional sobre la supervivencia del carcinoma gástrico

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    A. Borda

    Full Text Available Fundamento: El Índice Pronóstico nutricional (IPN combina los valores de los linfocitos circulantes y la albúmina sérica y, en la literatura asiática, se le ha relacionado con el pronóstico tras la resección R0 del cáncer gástrico, sin disponer de resultados en países occidentales. Estudiamos, en el momento del diagnóstico del tumor, el posible valor pronóstico independiente del IPN, sobre la supervivencia. Pacientes y Métodos: Revisamos 234 carcinomas gástricos consecutivos, determinando la supervivencia global y la específica por el tumor. Consideramos patológicos los valores del IPN pre-tratamiento 70 años, ASA anestésico al diagnóstico, tamaño de la neoplasia > 5 cm, tipo macroscópico infiltrante, grado indiferenciado y estadificación clínica TNM mediante ecoendoscopia y/o TAC. Resultados: El análisis univariante registró una mayor supervivencia global y específica en los casos con IPN ≥ 40 versus IPN < 40: [HR = 2,28; IC 95% = (1,60-3,26; p< 0,001] y [HR = 2,35; IC 95% = (1,63-3,39; p< 0,001], respectivamente. El análisis multivariante confirmó un mejor pronóstico independiente en los casos con IO ≥ 40: supervivencia global: [HR = 1,48; IC 95% = (1,02-2,16; p = 0,040], supervivencia específica: [HR = 1,51; IC 95% = (1,03-2,23; p = 0,036]. Conclusiones: En el momento del diagnóstico del cáncer gástrico e incluyendo la totalidad de los casos registrados, un IPN ≥ 40 se acompaña de una supervivencia global y específica por el tumor significativamente mayor. En nuestra serie, este mejor pronóstico es independiente del grupo de edad del paciente, de su clasificación ASA, del tamaño y grado de diferenciación de la neoplasia y de su estadificación clínica TNM.

  4. Capacidad pronóstica del eje SDF-1/CXCR4 en pacientes con carcinomas escamosos de cabeza y cuello

    OpenAIRE

    Piñeiro Aguín, Zenaida

    2011-01-01

    Introducció: El Stromal Derived Factor 1 (SDF-1) és una quimioquina que compta amb la capacitat de modular en la proliferació, supervivència, angiogènesi, quimiotaxi i metàstasi de les cèl·lules tumorals actuant a través del seu receptor: CXCR4. L'objectiu d'aquest estudi és valorar la relació en l'expressió dels gens de SDF-1 i CXCR4 comparant-los amb l'expressió en mucosa sana i determinar l'impacte en la supervivència en pacients amb Carcinoma escamós de cap i coll. Material i mètodes: Es ...

  5. Microcarcinomas papilares de tiroides no incidentales Non-incidental papillary microcarcinomas of the thyroid

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    Marcelo Monteros Alvi

    2008-04-01

    Full Text Available El significado clínico de los microcarcinomas papilares de tiroides sigue siendo controvertido. La alta prevalencia en autopsias e incidental en tiroidectomías por patología benigna indican un comportamiento clínico indolente. Sin embargo, algunos desarrollan metástasis ganglionares y recurrencia local. Nuestro objetivo fue determinar características clínicas y patológicas de microcarcinonas papilares de tiroides no incidentales (MPT-NI. Se analizaron 18 pacientes con diagnóstico de microcarcinomas (tumor The clinical significance of papillary microcarcinoma of the thyroid gland keeps being controversial. Its high prevalence in autopsies and as incidental findings in thyroidectomy specimens for benign pathology indicate an indolent clinical behavior. Nevertheless some of the microcarcinomas develop lymph node metastasis and local recurrence. To determine the clinical and pathological characteristics of non-incidental papillary microcarcinomas of the thyroid (PTM -NI. 18 patients with diagnosis of non-incidental papillary microcarcinoma (tumor < 1cm with nodular expression in the thyroid gland or with lymph node metastasis have been studied. Initial diagnosis, prediction factors and evolution have been evaluated. Of 18 patients with PTM-NI, 12 demonstrated lymph node metastasis. 6 patients had positive fine needle aspiration (FNA of palpable thyroid nodules. Multifocality and extraglandular extension were associated with lymph node metastasis. Seven of the nine metastatic lymph nodes diagnosed by FNA were cystic. Histologically 83.3% of the nodules in the thyroid were non-encapsulated and showed papillary growth pattern. Multifocality and extrathyroid infiltration were associated with lymph node metastasis at presentation. 46% of the patients with thyroid nodules < 4 mm and lymph node involvement (N1 showed recurrence/persistence. The non-incidental intrathyroideal papillary microcarcinoma without capsular involvement, extraglandular

  6. Historia natural del carcinoma hepatocelular en una cohorte de pacientes de un hospital comarcal Natural history of hepatocellular carcinoma in a cohort of patients from a county hospital

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    M. Vergara

    2008-11-01

    Full Text Available Introducción: el carcinoma hepatocelular (CHC es una neoplasia con una elevada incidencia y una alta mortalidad. Objetivo: nuestro objetivo es la descripción de la historia natural de una cohorte de pacientes con CHC e identificar variables asociadas a supervivencia. Material y métodos: estudio retrospectivo y descriptivo de pacientes diagnosticados de CHC entre 1995-2002. Las variables cualitativas se expresaron mediante frecuencias y porcentajes y las cuantitativas con mediana y desviación típica. La supervivencia se estimó mediante el método de Kaplan Meyer y la prueba de Log Rank. Resultados: se analizaron un total de 154 pacientes con CHC. La ratio hombre-mujer fue de 2,9/1. La edad media de 68 ± 9 años. El 82% de los pacientes fueron exitus en un tiempo medio de seguimiento de 28 meses. La mediana de supervivencia fue de 21,5 meses (IC 95%: 16,98-26,04. Se realizó tratamiento con intención curativa en un 40,3% y el resto tratamiento paliativo. Las variables asociadas a la supervivencia fueron: presencia o no de ascitis, el número de lesiones en el momento del diagnóstico y si el tratamiento realizado fue con intención curativa o no. No hubieron diferencias estadísticamente significativas respecto a: sexo, edad, etiología de la cirrosis y estadio de Child en el momento del diagnóstico. Conclusiones: los factores asociados a una menor supervivencia en los pacientes con carcinoma hepatocelular fueron la presencia de ascitis y el número de lesiones en el momento del diagnóstico. La realización de tratamiento con intención curativa se asocia a una mayor supervivencia.Background: hepatocellular carcinoma (HCC is a cancer with high incidence and mortality. Objective: our aim was to describe the natural history of a patient cohort with HCC, and to identify the factors associated with survival. Patients and methods: a retrospective and descriptive study of patients diagnosed with HCC between 1995 and 2002. Qualitative variables

  7. Análisis del gen SOX-2 en carcinoma escamoso de cabeza y cuello

    OpenAIRE

    González Márquez, Rocío

    2015-01-01

    El carcinoma escamoso de cabeza y cuello es la sexta neoplasia más frecuente en el mundo. El origen de dichos tumores implica gran numero de alteraciones genéticas y moleculares, siendo recientemente estudiado el gen SOX2. Se estudiaron las muestras procedentes de 220 pacientes con carcinoma escamoso de hipofaringe, laringe y senos paranasales. En el estudio inmunohistoquímico apareció un grado de sobreexpresión similar en tumores faringeos y laríngeos, así como relación significativa con...

  8. Análisis del gen SOX-2 en carcinoma escamoso de cabeza y cuello

    OpenAIRE

    González Márquez, Rocío

    2014-01-01

    El carcinoma escamoso de cabeza y cuello es la sexta neoplasia más frecuente en el mundo. El origen de dichos tumores implica gran numero de alteraciones genéticas y moleculares, siendo recientemente estudiado el gen SOX2. Se estudiaron las muestras procedentes de 220 pacientes con carcinoma escamoso de hipofaringe, laringe y senos paranasales. En el estudio inmunohistoquímico apareció un grado de sobreexpresión similar en tumores faringeos y laríngeos, así como relación significativa con...

  9. ESTUDIO MORFOLÓGICO DEL CULTIVO A LARGO PLAZO DE

    Directory of Open Access Journals (Sweden)

    ONDO-MENDEZ A

    2008-12-01

    Full Text Available La unidad morfológica y funcional de la glándula tiroides es el folículo, estructura ovoide cerrada, constituida por una capa de células cúbicas (tirocitos que encierran un lumen lleno del coloide secretado por ellas. En cultivo, tanto la estructura como la función del folículo se pierden rápidamente en las primeras 24 horas. Sin embargo, si se cultivan folículos cerrados de tiroides de rata conservan la arquitectura folicular, la morfología del tirocito y la función hasta la síntesis de hormonas tiroides de manera similar a la glándula in vivo. En este trabajo describimos el aislamiento y cultivo de folículos porcinos cerrados y su análisis morfológico. Los folículos se aíslan por digestión enzimática y disociación mecánica del parénquima tiroideo, luego se cultivan sobre agarosa con y sin hormona tirotrópica o tirotropina (1 mU/ml, TSH. El tejido de tiroides porcino obtenido tiene las mismas características de una glándula hipotiroidea in vivo, un epitelio casi plano, retículo endoplásmico rugoso (RER exiguo, complejo de Golgi (CG, y microvellosidades escasas y cortas. Los folículos cultivados sin TSH conservan la forma ovoide y el coloide en su interior, y la misma ultra-estructura del tejido in vivo, RER y CG muy escasos, pero con el tiempo de cultivo aumenta la longitud de la microvellosidades y el espesor del epitelio. En presencia de TSH el epitelio se hipertrofia desde el primer día y las cavidades foliculares se reducen considerablemente. Se demuestra que folículos cerrados de tiroides durante ocho días (d de cultivo conservan su morfología con y sin TSH. Además, estos responden al estímulo de TSH disminuyendo su cavidad folicular y aumentando el espesor del epitelio folicular.

  10. Detección del receptor tipo 2 del factor de crecimiento epidérmico humano (her2/neu: inmunohistoquímica en carcinomas de mama

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    José Luis Quirós-Alpízar

    2015-03-01

    Full Text Available Antecedentes: la incidencia y mortalidad por cáncer de mama han presentado un aumento neto. Uno de los tipos de esta heterogénea enfermedad se caracteriza por la amplificación y alta expresión del gen ERBB2, que codifica el receptor tipo 2 del factor de crecimiento epidérmico humano (HER2. Este receptor estimula procesos oncogénicos y dichos tumores se asocian a un peor pronóstico. El objetivo del estudio fue analizar las características de tumores HER-2+ en un grupo de pacientes con carcinoma de mama. Métodos: se estudió los casos de mujeres con biopsia diagnóstica de cáncer de mama registrados durante 2006 en los archivos del Servicio de Anatomía Patológica del Hospital San Juan de Dios; entre los que contaban con estudios inmunohistoquímicos, se estudió la expresión de HER-2 y se realizó análisis estadísticos. Resultados: se halló 34 tumores HER-2+ (15,7%, 24 con expresión fuerte (11,1% y 10 con débil (4,6%. La edad media al diagnóstico de las pacientes con expresión fuerte fue de 46,9 años (42,5-51,1 IC 95%, y con expresión débil fue de 54,4 años (46,7-62,1 IC 95%; la edad promedio para los tumores HER-2- fue de 58,1 años (56,2-60,0 IC 95%. Las pacientes <50 años tuvieron un OR=3,477 de tener HER-2+. De 21 tumores, el 90,5% presentó un grado histológico alto, y de 16 casos, únicamente 3 tenían un tamaño <2 cm. Conclusión: se encontró una asociación del tipo HER-2+ con pacientes jóvenes, tumores de mayor tamaño y alto grado histológico. Los datos encontrados en este primer reporte son similares a las últimas estimaciones mundiales.

  11. Radiation treatment of early vocal cord carcinoma. Eighteen years experience at "Instituto de Oncologia y Radioterapia de Mar del Plata".

    Science.gov (United States)

    Castro Vita, H

    1990-01-01

    A detailed retrospective analysis of 260 patients with T 1 NO MO vocal cord carcinoma treated at "Instituto de Oncologia y Radioterapia de Mar del Plata" from 1967 to 1985 was performed. The majority of the patients were in the age range of 50 to 79 years, and 79% were males. The overall observed three year tumor free survival was 85.3%. When survival rate was adjusted for intercurrent disease and second primary tumor death, the 3 year tumor free survival was 92%. Sixty two percent of the patients (17/27) undergoing surgical salvage for recurrence, were controlled. Second primary tumors were seen in 18 patients (6.9%). It is emphasized the importance of close follow up to diagnose as early as possible both the vocal cord recurrence and the second primary tumors.

  12. Carcinoma bronquioloalveolar, ¿Diagnóstico precoz?: Experiencia 1994-1997 en el Instituto Nacional del Tórax BRONCHIOALVEOLAR CARCINOMA EARLY DIAGNOSIS?: STUDY AT INSTITUTO NACIONAL DEL TORAX 1994-1997

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    JAIME GUACHALLA U.

    2002-04-01

    Full Text Available El carcinoma bronquioloalveolar (CABA se presenta inicialmente en etapa de nódulo periférico, asintomático y estable por algunos años. En esta etapa el tratamiento tiene una sobrevida de 75 a 80% a cinco años. En los países desarrollados su diagnóstico se logra en esta etapa hasta en un 50% de los pacientes. La fase de microdiseminación canalicular corresponde a un estadio difuso de mal pronóstico. Nuestro propósito fue evaluar el diagnóstico precoz del CABA en el Instituto Nacional del Tórax (INT. Se realizó una revisión retrospectiva de estos pacientes usando la base de datos de cáncer pulmonar del INT durante 1994-1997. Se encontró 673 pacientes con cáncer pulmonar, de los cuales 15 (2,2% eran del subtipo CABA confirmado por citología y/o histología. El promedio de edad de estos pacientes fue 64 años. La relación masculino/femenino = 1,1 y 56,2% eran fumadores. En etapa de nódulo ingresaron dos pacientes con CABA (13,3%, que fueron tratados con lobectomía, sobreviviendo 56 y 30 meses respectivamente. El promedio de sobrevida de los 13 pacientes con tratamiento paliativo fue 9 meses. En este estudio los pacientes con CABA en cuanto a promedio de edad, distribución por sexo y hábito tabáquico son coincidentes con los de otras series. Sin embargo, el porcentaje de pacientes diagnosticados en etapa de nódulo periférico es claramente menor a los registrados en países desarrollados (13 versus 50%. Este hecho muestra la importancia del tamizaje oportuno del paciente con CABA para encontrarlos en la etapa más precoz. La frecuencia de pacientes con CABA diagnosticados en etapa de nódulo periférico podría reflejar la calidad de la pesquisa del cáncer pulmonar en cualquier centro hospitalarioBronchioloalveolar Carcinoma (BAC at an early stage is presented as an asymptomatic peripheral nodule being stable for some years. Surgical treatment has up to 80% five years survival at this stage. Up to 50% of patients are

  13. Genomic profiling of CHEK2*1100delC-mutated breast carcinomas

    NARCIS (Netherlands)

    M.P.G. Massink (Maarten P.G.); I.E. Kooi (Irsan E.); J.W.M. Martens (John); Q. Waisfisz (Quinten); E.J. Meijers-Heijboer (Hanne)

    2015-01-01

    textabstractBackground: CHEK2*1100delC is a moderate-risk breast cancer susceptibility allele with a high prevalence in the Netherlands. We performed copy number and gene expression profiling to investigate whether CHEK2*1100delC breast cancers harbor characteristic genomic aberrations, as seen for

  14. Prognostic Impact of del(17p and del(22q as assessed by interphase FISH in sporadic colorectal carcinomas.

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    María González-González

    Full Text Available BACKGROUND: Most sporadic colorectal cancer (sCRC deaths are caused by metastatic dissemination of the primary tumor. New advances in genetic profiling of sCRC suggest that the primary tumor may contain a cell population with metastatic potential. Here we compare the cytogenetic profile of primary tumors from liver metastatic versus non-metastatic sCRC. METHODOLOGY/PRINCIPAL FINDINGS: We prospectively analyzed the frequency of numerical/structural abnormalities of chromosomes 1, 7, 8, 13, 14, 17, 18, 20, and 22 by iFISH in 58 sCRC patients: thirty-one non-metastatic (54% vs. 27 metastatic (46% disease. From a total of 18 probes, significant differences emerged only for the 17p11.2 and 22q11.2 chromosomal regions. Patients with liver metastatic sCRC showed an increased frequency of del(17p11.2 (10% vs. 67%;p<.001 and del(22q11.2 (0% vs. 22%;p = .02 versusnon-metastatic cases. Multivariate analysis of prognostic factors for overall survival (OS showed that the only clinical and cytogenetic parameters that had an independent adverse impact on patient outcome were the presence of del(17p with a 17p11.2 breakpoint and del(22q11.2. Based on these two cytogenetic variables, patients were classified into three groups: low- (no adverse features, intermediate- (one adverse feature and high-risk (two adverse features- with significantly different OS rates at 5-years (p<.001: 92%, 53% and 0%, respectively. CONCLUSIONS/SIGNIFICANCE: Our results unravel the potential implication of del(17p11.2 in sCRC patients with liver metastasis as this cytogenetic alteration appears to be intrinsically related to an increased metastatic potential and a poor outcome, providing additional prognostic information to that associated with other cytogenetic alterations such as del(22q11.2. Additional prospective studies in larger series of patients would be required to confirm the clinical utility of the new prognostic markers identified.

  15. Tumoral response factors after radiofrequency ablation of hepatocellular carcinoma in cirrhotic liver Factores de respuesta tumoral tras ablación mediante radiofrecuencia del carcinoma hepatocelular sobre cirrosis

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    J. Calleja Kempin

    2005-10-01

    Full Text Available Objective: hepatocellular carcinoma (HCC ablation by radiofrequency (RFA is a novel technique with a great variety of methods whose efficacy and predictive factors have not been completely studied. Some of the main predictive factors in this type of treatment are analyzed in the present study. Patients and methods: ninety-three patients with hepatocellular carcinoma over cirrhosis, and with no indication for surgical resection were treated by RFA. Two different types of electrodes were used for RFA (refrigerated-"Cool-Tip" and perfusion with saline solution, the approach was percutaneous, by laparoscopy or laparotomy. Results: overall survival at 1, 2 and 3 years was 88, 81, and 76%, with a free-disease survival (FDS of 66, 31 and 17%, respectively. For tumors less than 3 cm, FDS at 1,2 and 3 years was 74, 44 and 30%, while for more than 3 cm in size FDS was 55, 12 and 0% (p = 0.02. FDS for HCC with one nodule was 70, 36 and 22%, and for more than one nodule it decreased to 50, 17 and 0% at 1, 2 and 3 years, respectively (p = 0.07. Surprisingly, the method employed for RFA has a main influence in FDS, with 0% at 3 years for perfusion electrodes and 26% for cool-tip electrodes at the same period. Conclusions: in this series, overall survival at three years was relatively high; however, tumoral size, number of nodules and RFS method were independent variables associated with disease-free survival.Objetivo: la ablación por radiofrecuencia del hepatocarcinoma (ARF es una técnica de reciente adquisición, cuya eficacia y factores predictivos no han sido suficientemente evaluados. El presente estudio fue diseñado para este análisis. Pacientes y métodos: se han tratado 93 pacientes con hepatocarcinoma sobre hígado cirrótico sin criterios de resección ni de trasplante hepático. El tratamiento se realizó mediante abordaje percutáneo, laparoscópico o mediante laparotomía con dos tipos de electrodos de radiofrecuencia, electrodo refrigerado y

  16. Variante plasmocitoide del carcinoma urotelial: a propósito de un caso

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    J.M. Velis

    2013-08-01

    Full Text Available El carcinoma urotelial plasmocitoide es un hallazgo anatomopatológico extremadamente raro. Aportamos nuestra experiencia de un caso. Varón de 60 años con episodios de hematuria de 2 años de evolución con polaquiuria y disuria. Se evidenció un tumor realizando primero una RTU vesical cuyo diagnóstico anatomopatológico fue de carcinoma urotelial plasmocitoide, por lo que posteriormente se realizó una cisto-prostatectomía radical con derivación ileal, y tras más de dos años de evolución falleció.

  17. Endorectal coil MRI in local staging of prostate carcinoma. Comparative assessment with histologic macro section in 40 cases; La Risonanza Magnetica con bobina endorettale nella stadiazione locale del carcinoma prostatico. Confronto con macrosezioni istologiche in 40 casi

    Energy Technology Data Exchange (ETDEWEB)

    Torricelli, P.; Iadanza, M.; De Santis, M.; Pollastri, C.A. [Modena Univ. (Italy). Dipt. di Scienze Mediche, Oncologiche e Radiologiche. Dipt. di Chirurgia. Div. di Urologia; Cesinari, A.M.; Trentini, G.; Romagnoli, R. [Modena Univ. (Italy). Dipt. di Scienze Mediche, Oncologiche e Radiologiche. Dipt. di Scienze Morfologiche e Medico Legali

    1999-06-01

    Endorectal coil MRI is widely used in the diagnostic workup of prostate cancer, but diagnostic accuracy rates reported in the literature are quite variable. The authors report them personal experience with endorectal coil MRI in the local staging of prostate carcinoma. MRI showed moderate overall and particularly MRI had good accuracy in detecting seminal vesicle involvement but moderate sensitivity and specificity in demonstrating capsular infiltration and apex involvement. Due to its high cost, MRI should not be routinely used in prostate cancer standing but should be reserved to the patient whose clinical and serological data suggest extra prostatic tumor spread, whose preoperative demonstration could avoid non curative surgery. [Italian] La RM con bobina endorettale viene oggi ampiamente impiegata nella stadiazione del carcinoma prostatico, sebbene i risultati relativi al suo impiego siano tuttora piuttosto difformi tra i diversi autori. Scopo del presente lavoro e' presentare la personale esperienza relativo all'impiego della RM con bobina endorettale nella stadiazione locale del carcinoma prostatico. La RM ha consentito di ottenere discreti risultati e soprattutto di evidenziare con buona accuratezza l'invasione delle vescicole seminali, mentre ha presentato sensibilita' e specificita' inferiori nella valutazione della penetrazione capsulare e dell'apice prostatico. Visti gli elevati costi della metodica si conclude che la RM non possa essere considerata indagine abituale nella stadiazione del carcinoma prostatico, ma possa essere riservata alla valutazione di quei pazienti ove, sulla base di altri dati clinici, bioumorali o strumentali, sia ritenuta probabile l'estensione extracapsulare macroscopica della neoplasia, evento che, confermato preoperatoriamente, puo' costituire criterio di esclusione della terapia chirurgica.

  18. Impacto de la aplicación de los criterios de la asociación americana de tiroides en el diagnóstico de hipotiroidismo en gestantes de Vigo, España

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    Marta Pombar-Pérez

    2013-07-01

    Full Text Available Con el objetivo de determinar el impacto de la aplicación de los criterios de la Asociación Americana de Tiroides (ATA en el diagnóstico de hipotiroidismo en gestantes del área sanitaria de Vigo en España, se analizó la concentración sérica de tirotropina (TSH, tiroxina libre (T4L y anticuerpos antitiroideos, comparando la frecuencia de gestantes diagnosticadas de hipotiroidismo aplicando los criterios utilizados en el laboratorio de hormonas del Hospital Xeral y los criterios de referencia propuestos por la ATA. La asunción de dichos criterios implicaría un aumento de un 29,6% de pacientes diagnosticadas de hipotiroidismo. La aplicación de los criterios ATA tuvo una repercusión en la medición de la concentración de TSH en gestantes lo que sugiere una evaluación de los valores de referencia de TSH en función de la población y los métodos de diagnóstico locales

  19. Impacto de la aplicación de los criterios de la asociación americana de tiroides en el diagnóstico de hipotiroidismo en gestantes de Vigo, España

    Directory of Open Access Journals (Sweden)

    Marta Pombar-Pérez

    Full Text Available Con el objetivo de determinar el impacto de la aplicación de los criterios de la Asociación Americana de Tiroides (ATA en el diagnóstico de hipotiroidismo en gestantes del área sanitaria de Vigo en España, se analizó la concentración sérica de tirotropina (TSH, tiroxina libre (T4L y anticuerpos antitiroideos, comparando la frecuencia de gestantes diagnosticadas de hipotiroidismo aplicando los criterios utilizados en el laboratorio de hormonas del Hospital Xeral y los criterios de referencia propuestos por la ATA. La asunción de dichos criterios implicaría un aumento de un 29,6% de pacientes diagnosticadas de hipotiroidismo. La aplicación de los criterios ATA tuvo una repercusión en la medición de la concentración de TSH en gestantes lo que sugiere una evaluación de los valores de referencia de TSH en función de la población y los métodos de diagnóstico locales

  20. DNA aneuploidy in colorectal adenomas: Role in the adenoma-carcinoma sequence Aneuploidía del ADN en adenomas colónicos: Papel en la secuencia adenoma-carcinoma

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    M. Alcántara Torres

    2005-01-01

    Full Text Available Introduction: aneuploidy has been observed in 6-27% of lesions known to be precursors of colorectal cancer, such as adenomas or ulcerative colitis. It has been suggested that aneuploidy may predispose to malignancy in these cases. However, its role in the adenoma-carcinoma sequence has not been definitely established. The objective of this study was to assess the incidence of aneuploidy in colon adenomas, as well as to study its possible role in the adenoma-carcinoma sequence. Material and methods: the study was performed on a series of 57 large bowel adenomas measuring 10 mm or more, collected from 54 consecutive patients. All specimens were obtained either by endoscopic or by surgical resection. There were 49 adenomas with low-grade dysplasia, two with high-grade dysplasia, two intramucous carcinomas, and four microinvasive carcinomas. A flow cytometric DNA analysis was performed in fresh specimens following Vindelov´s method. Results: aneuploid DNA was detected in five out of 49 low-grade dysplasia adenomas (10%, in all four high-grade dysplasia adenomas or intramucous carcinomas (100%, and in three out of four microinvasive carcinomas (75%. The association between aneuploidy and high-grade dysplasia adenomas, intramucous, or microinvasive carcinoma was statistically significant (p Introducción: en patología benigna de intestino grueso precursora del cáncer colorrectal, como adenomas o colitis ulcerosa, se ha observado aneuploidía en el 6-27% de los casos y se ha sugerido que su presencia predispone al desarrollo de malignidad. Sin embargo, su papel en la secuencia adenoma-carcinoma no se ha demostrado de forma concluyente. El objetivo de nuestro trabajo fue valorar la incidencia de aneuploidía en adenomas colónicos, con y sin signos de malignidad, y estudiar su posible papel en la secuencia adenoma-carcinoma. Material y métodos: el estudio se realizó en una serie de 57 adenomas de intestino grueso, de 10 o más mil

  1. ALGUNAS ALTERACIONES HISTOPATOLÓGICAS RELACIONADAS CON ENFERMEDADES DEL SISTEMA INMUNE

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    Ángel Concepción

    2011-01-01

    Full Text Available El estudio del sistema inmune normal y los efectos histopatológicos provocados por sus alteraciones, son de la mayor importancia tanto desde el punto de vista investigativo, como para una adecuada preparación del médico integral que se necesita formar en este campo. Tomando en consideración estos antecedentes fue utilizado en el presente trabajo, muestras de mastocitos peritoneales teñidas con azul de toluidina y cortes de corazón, pulmón y tiroides, incluidas en parafina y teñidas con hematoxilina-eosina. Posteriormente fueron fotografiadas a través de un microscopio óptico y procesadas, mediante un programa de foto edición. Se comparan patologías de origen inmunológico, como las características de los mastocitos desgranulados y sin desgranular, corazón normal y con carditis, pulmón normal con la de asma a nivel alveolar y tiroides normal, con tiroiditis. El objetivo del trabajo consiste en comparar un grupo de imágenes que muestran las características normales de diversos órganos, comparándolas con las imágenes de patologías de origen inmunológico que las afectan, por lo que además del resultado investigativo, posee valor docente.

  2. TRATAMIENTO QUIRÚRGICO DEL CARCINOMA PULMONAR. ASPECTOS ANATÓMICOS

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    José Felix Patiño Restrepo

    1984-07-01

    Full Text Available

    El cáncer pulmonar es la causa principal de muerte por neoplasia en el hombre en los E.U.A. y en muchos países del mundo; en la mujer es la segunda causa de muerte por neoplasia, y aparentemente en unos años habrá de sobrepasar al cáncer mamario, el
    cual ocupa e! primer lugar (2. Esto se debe, aparentemente, al creciente número de mujeres que han adquirido el hábito de fumar (14.

    El pronóstico es deplorable. Sólo alrededor del 10% de los pacientes con cáncer pulmonar sobrevive 5 allos (5, tasa que no ha mostrado mejoría en los últimos 40 años (3,4,6,25,26. Mediante quimioterapia agresiva y un vigoroso soporte del paciente, en la fórma que anteriormente se reservaba para pacientes leucémicos, se puede aspirar a supervivencias a 5 años del orden de 15 a 30% o más (2.

    Aproximadamente un 40% (5 a 75% (6-8 de los tumores presenta extensión en el momento del diagnóstico (5, lo cual los hace imposibles de resecar.

    Gracias a las nuevas técnicas de diagnóstico se ha logrado una mejor selección de los pacientes para tratamiento quirúrgico; con ello, quizás, se verán mejores supervivencias en el futuro.

  3. Telomerase activity and telomere length in the colorectal polyp-carcinoma sequence Actividad de la telomerasa y longitud del telómero en la secuencia pólipo-carcinoma colorrectal

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    C. Valls Bautista

    2009-03-01

    Full Text Available Objective: the role of telomerase activity and telomere length in the adenoma-carcinoma sequence of colon carcinogenesis has not been well established. The objective of this study was to determine telomerase activity and telomere length patterns in patients with adenomatous polyps either associated or not with colorectal cancer, as well as the role of telomeric instability in the adenoma-carcinoma sequence. Patients and methods: we included in the study 14 patients who underwent surgery for colorectal cancer and/or polyps. In 6 of these patients fresh samples of tumor tissue, polyps, and normal mucosa were obtained; in the 8 remaining cases, we collected only polyps and normal mucosa. We used the fluorescent-telomeric repeat amplification protocol assay (TRAP-F to determine telomerase activity and telomere length using Southern-blot testing. Results: telomerase activity was detected in 86% of polyps and 50% of associated normal mucosa. Mean telomerase activity in polyp tissue was 5.85; in the normal mucosa it was 0.58 TPG. Mean telomere length was 6.78 Kbp and 7.78, respectively. Polyps in patients without synchronous cancer had a telomerase activity that was significantly higher (9.4 than in those with cancer (1.1. Conclusions: telomerase activity increases in the colorectal adenoma-carcinoma sequence, concurrently with a decrease in telomere length. The presence of synchronous cancer modifies telomerase activity in polyps.Objetivo: el papel de la actividad de la telomerasa y la longitud del telómero en la secuencia adenoma-carcinoma de la carcinogénesis colónica no ha sido bien establecido. El objetivo fue determinar el comportamiento de la actividad de la telomerasa y la longitud del telómero en pacientes con pólipos adenomatosos asociados o no a cáncer colorrectal y conocer el papel de la inestabilidad telomérica en la secuencia adenoma-carcinoma. Pacientes y métodos: se estudiaron 14 pacientes intervenidos de cáncer colorrectal y

  4. Obtención de hormona estimulante de la tiroides (htsh de hipófisis humana

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    Jorge H. Ayala

    2010-07-01

    Full Text Available En este trabajo se describe un método para extraer y purificar la Hormona Estimulante de la Tiroides (TSH a partir de glándulas pituitarias humanas congeladas, dentro de un esquema integral de extracción de la mayoría de las hormonas de la hipófisis anterior. El contenido hormonal de TSH se determinó mediante el análisis inmimorradiométrico específico (IRMA, estandarizado en este trabajo. La potencia inmunológica de la preparación final dio un valor de 1365 m Ul/mg. Mediante electroforesis analítica en SDS se comprobó la naturaleza multicomponente de la hormona.

  5. Cáncer folicular de tiroides y bocio tóxico difuso. Reporte de un caso

    OpenAIRE

    Ignacio Alejandro Martínez-Delgado; Graciela Gómez-Martínez; Jesús Manuel Ojeda-Ibarra

    2007-01-01

    Introducción: El cáncer folicular de tiroides raramente se manifiesta por una lesión metastásica. Reportamos el caso de un varón con cáncer folicular que presentó inicialmente tumoración esternal como lesión metastásica distante asociada con bocio tóxico difuso. Caso clínico: Hombre de 50 años con tumoración esternal de 6 x 6 cm, de consistencia blanda, no dolorosa, con aumento de temperatura y pulsátil. El diagnóstico por biopsia incisional fue de metástasis de cáncer folicular. En la valora...

  6. Sobrevida postquirúrgica del carcinoma de pulmón de células no pequeñas en estadio I

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    Andy Rocha Quintana

    2011-12-01

    Full Text Available Fundamento: En el pronóstico del carcinoma de pulmón, es importante el diagnóstico durante los estadios iniciales, por la elevada sobrevida postquirúrgica que suele obtenerse. Objetivo: Caracterizar la sobrevida del carcinoma de pulmón de células no pequeñas en estadio I luego de tratamiento quirúrgico. Métodos: Estudio observacional, analítico y longitudinal, de pacientes operados de carcinoma de pulmón de células no pequeñas en estadio I, durante el período de 1982 a 1997 (33 pacientes, en el Hospital Gustavo Aldereguía Lima, de Cienfuegos, y seguidos durante 10 años en dependencia de la sobrevida alcanzada individualmente. Fueron analizadas las variables edad, sexo, localización, histología y estadio del tumor, tipo de operación, sobrevida postquirúrgica a 1, 5 y 10 años. Resultados: Predominó el sexo masculino y la edad media fue 60,2 años. La sobrevida a los 5 años fue 69,7 % y a los 10 años de 48,5 %. Predominó el carcinoma epidermoide, siendo el carcinoma de células gigantes el de mejor pronóstico a los 5 años. La localización lobular del tumor presentó una mayor sobrevida a los 5 años sobre la hiliar, pero esta proporción se invirtió a los 10 años y más. El estadio Ia fue el de mejor probabilidad de sobrevida. Conclusiones: La mayoría de los pacientes son diagnosticados ya en etapas avanzadas de la enfermedad, donde ya el tratamiento quirúrgico ofrece esperanzas de sobrevida muy escasas. Por lo tanto, es necesario hacer énfasis en la profilaxis y diagnóstico oportuno como única solución a este flagelo de la humanidad.Post Surgical Survival for Stage I Non-Small Cell Lung CancerBackground: As part of the prognosis for lung carcinoma, diagnosis during initial stages is highly important given the high post surgical survival rates that are usually obtained. Objective: To characterize the survival of stage I non-small cell lung cancer after surgical treatment. Methods: An observational, analytical and

  7. Recurrence of hepatocellular carcinoma after liver transplantation presenting as anastomotic biliary stricture Presentación del carcinoma hepatocelular recurrente tras el trasplante de hígado en forma de estenosis biliar anastomótica

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    S. Y. Chen

    2008-07-01

    Full Text Available A 52-year-old man visited our hospital complaining of anorexia and fatigue two months after receiving orthotopic liver transplantation for hepatocellular carcinoma. A laboratory investigation demonstrated a clinical picture of obstructive jaundice. T-tube cholangiography showed biliary stricture over the anastomotic site. Percutaneous transluminal balloon dilatation and stenting was attempted but failed. Magnetic resonance cholangiography showed possible tumor recurrence over the site of the anastomotic biliary stricture. A biopsy sample was obtained via ultrasound-guided aspiration and histopathological study revealed inflammatory and fibrotic changes. With high suspicion of recurrence of the hepatocellular carcinoma, surgical exploration was performed and an intraoperative frozen section proved the recurrence. We thus diagnosed this case as a recurrence of hepatocellular carcinoma after liver transplantation. To our knowledge, there have been no previous reports of early tumor recurrence after liver transplantation being the cause of an anastomotic biliary stricture.Un varón de 52 años visitó nuestro hospital quejándose de anorexia y fatiga a los dos meses de haber recibido un trasplante hepático ortotópico a causa de un carcinoma hepatocelular. La analítica mostró un cuadro clínico de ictericia obstructiva. La colangiografía con tubo en T mostró una estenosis biliar sobre la anastomosis. Se intentó una dilatación transluminal percutánea con globo y colocación de endoprótesis, que fracasó. La colangiografía por resonancia magnética mostró una posible recurrencia tumoral sobre el lugar de la estenosis biliar anastomótica. Se extrajo una muestra de biopsia mediante aspiración bajo guía ecográfica y el estudio histopatológico mostró alteraciones inflamatorias y fibróticas. Al sospecharse la recurrencia del carcinoma hepatocelular, se realizó una exploración quirúrgica; un corte intraoperatorio congelado demostr

  8. La tiroides como modelo de mecanismos moleculares en enfermedades genéticas The thyroid as a model for molecular mechanisms in genetic diseases

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    Carina M. Rivolta

    2005-06-01

    Full Text Available Las enfermedades tiroideas constituyen una heterogénea colección de anormalidades asociadas a mutaciones en los genes responsables en el desarrollo de la tiroides: factor de transcripción tiroideo 1 (TTF-1, factor de transcripción tiroideo 2 (TTF-2 y PAX8, o en uno de los genes que codifican para las proteínas involucradas en la biosíntesis de hormonas tiroideas como tiroglobulina (TG, tiroperoxidasa (TPO, sistema de generación de peróxido de hidrógeno (DUOX2, cotransportdor de Na/I- (NIS, pendrina (PDS, TSH y receptor de TSH. El hipotiroidismo congénito ocurre con una prevalencia de 1 en 4.000 nacidos. Los pacientes con este síndrome pueden ser divididos en dos grupos: con hipotiroidismo congénito sin bocio (disembriogénesis o con bocio (dishormonogénesis. El grupo de disembriogénesis, que corresponde al 85% de los casos, resulta de ectopía, agenesia o hipoplasia. En una minoría de estos pacientes, el hipotiroidismo congénito está asociado con mutaciones en los genes TTF-1, TTF-2, PAX-8, TSH o TSHr. La presencia de bocio congénito (15% de los casos se ha asociado a mutaciones en los genes NIS, TG, TPO, DUOX2 o PDS. El hipotiroidismo congénito por dishormonogénesis es trasmitido en forma autonómica recesiva. Mutaciones somáticas en el TSHr han sido identificadas en adenomas tiroideos hiperfuncionantes. Otra enfermedad tiroidea bien establecida es la resistencia a hormonas tiroideas (RTH. Es un síndrome de reducida respuesta tisular a la acción hormonal causado por mutaciones localizadas en el gen del receptor b de hormonas tiroideas (TRb. Mutantes de TRb interfieren con la función del receptor normal por un mecanismo de dominancia negativa. En conclusión, la identificación de mutaciones en los genes de expresión tiroidea ha permitido un mayor entendimiento sobre la relación estructura-función de los mismos. La tiroides constituye un excelente modelo para el estudio molecular de las enfermedades gen

  9. Historia natural del carcinoma hepatocelular en una cohorte de pacientes de un hospital comarcal Natural history of hepatocellular carcinoma in a cohort of patients from a county hospital

    OpenAIRE

    M. Vergara; M. Gil; B. Dalmau; R. Ribot; Navarro, C.; Martin, A; M. Penafreta; Puig, J.; Martin, J.; Perendreu, J; J. Falcó; Bella, R.

    2008-01-01

    Introducción: el carcinoma hepatocelular (CHC) es una neoplasia con una elevada incidencia y una alta mortalidad. Objetivo: nuestro objetivo es la descripción de la historia natural de una cohorte de pacientes con CHC e identificar variables asociadas a supervivencia. Material y métodos: estudio retrospectivo y descriptivo de pacientes diagnosticados de CHC entre 1995-2002. Las variables cualitativas se expresaron mediante frecuencias y porcentajes y las cuantitativas con mediana y desviación...

  10. Carcinoma Verrucoso Oral: Reporte de un Caso Clínico y Revisión de 20 Casos del Instituto de Referencia en Patología Oral (IREPO, Chile Oral Verrucous Carcinoma: A Case Report and Review of 20 Cases of the Oral Pathology Referral Institute (IREPO, Chile

    Directory of Open Access Journals (Sweden)

    D Adorno Farias

    2010-12-01

    Full Text Available El carcinoma verrucoso (CV es una variante rara del carcinoma de células escamosas con características morfológicas y comportamiento específico. El presente estudio relata el caso de una paciente de género femenino, de 68 años de edad, que presenta un carcinoma verrucoso en lengua, indoloro y con 8 meses de evolución. Además, se realizó una breve revisión de casos clínicos del Instituto de Referencia en Patología Oral (IREPO de la Facultad de Odontología de la Universidad de Chile, diagnosticados entre enero de 1984 y octubre de 2010, encontrándose 20 casos, con un promedio de edad de 70 años, localizados con mayor frecuencia en encía inferior y lengua.Verrucous carcinoma (VC, a rare variant of squamous cell carcinoma is an established entity with distinctive morphology and specific clinical behavior. The present study describe a case report of a 68-year-old women who presented a tongue verrucous carcinoma, asymptomatic, that had about 8 months of evolution. A brief review of VC cases diagnosed in Oral Pathology Referral Institute (IREPO, Faculty of Odontology, University of Chile, between 1984 and 2010. It was found 20 cases of verrucous carcinoma with a median age of70-years-old, the most common places were lower gingiva and tongue.

  11. Tamaño del tumor y supervivencia en carcinoma de pulmón, estadio IA Tumor size and survival in lung cancer, stage IA

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    Gustavo Lyons

    2008-02-01

    Full Text Available El estadio determinado por el sistema TNM (tumor, ganglios, metástasis sigue siendo el factor predictor de supervivencia más importante en el carcinoma de pulmón. Sin embargo, varios estudios demostraron que el tamaño del tumor tenía valor pronóstico en sí mismo, aunque la relación entre tamaño tumoral y supervivencia dentro del grupo de tumores T1 todavía no es clara. El objetivo del presente estudio fue evaluar el valor del tamaño del tumor como factor pronóstico para la supervivencia en pacientes con carcinoma de pulmón de estadio IA, resecado quirúrgicamente. Se revisaron 79 pacientes con carcinoma de pulmón de células no pequeñas. En 34.4% de los pacientes (n = 28 el tamaño fue igual o menor a 1.5 cm. La mortalidad operatoria fue de 1.3%. Hubo recurrencia de la enfermedad en el 19%. Los pacientes con tumores de hasta 15 mm tuvieron una supervivencia a los 5 años de 95% (IC: 0.05 y con más de 15 mm, de 77%. (IC: 0.07, siendo la diferencia estadísticamente significativa (log-rank test: 0.035. La supervivencia libre de enfermedad fue de 95% en los tumores de hasta 15 mm y de 72% (IC: 0.09 en los de más de 15 mm. El análisis multivariado (Cox mostró que el mayor determinante del riesgo de mortalidad fue el tamaño mayor de 15 mm (riesgo relativo 25.9, IC: 2.3-292, p = 0.004. Este estudio demuestra la influencia del tamaño del tumor en estadio IA, lo cual puede tener importancia práctica en función de las recientes propuestas de investigación sistemática de pacientes con alto riesgo de cáncer pulmonar.TNM staging is an important long-term predictor for survival of lung cancer patients. Some studies have shown, however, that tumor size may have intrinsic prognostic value independent of TNM stage. The relationship between tumor size and survival is particularly unclear in T1 tumors. The objective of this study was to assess the prognostic value of tumor size in surgically resected stage I of non-small cell lung cancer

  12. High prevalence of thyroid disorders in relatives of patients with familial papillary thyroid cancer Elevada prevalencia de alteraciones tiroideas en familiares de pacientes con diagnóstico de carcinoma papilar familiar

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    Graciela Cross

    2010-04-01

    Full Text Available In the familial form of papillary thyroid cancer (PTC, two or more members of the same family have to be affected with PTC. Prevalence is around 5% of all PTC. We performed a clinical analysis in 79 relatives of 16 patients of 7 unrelated kindred with the diagnosis of familial papillary thyroid carcinoma (FPTC. The results were compared with a control group. Thyroid palpation and TSH and TPO-Ab assessment was carried out in the relatives without a diagnosed PTC. Additionally, molecular analysis was performed in the sixteen affected patients. Clinical screening of the 79 family members showed the presence of goiter in 22/79 (29 %. This frequency was much higher than that observed in the control group (8.7%, p En la forma familiar del carcinoma papilar de tiroides (CPT, dos o más miembros de la misma familia deben presentar CPT. Esta entidad ocurre en aproximadamente el 5% de todos los CPT. En este estudio, realizamos una evaluación de 79 familiares de 16 pacientes con diagnóstico de carcinoma papilar familiar (CPF provenientes de 7 familias diferentes. Los resultados se compararon con los hallados en un grupo control. Se realizó palpación tiroidea y medición de TSH y anticuerpos anti-tiroperoxidasa (TPO-Ab en todos los familiares. Además, se llevó a cabo el análisis molecular en los 16 sujetos que presentaban el diagnóstico de CPF. La evaluación de los 79 familiares de estos pacientes demostró la presencia de bocio en 22/79 (29%. Esta frecuencia fue mucho mayor que la observada en el grupo control (8.7%, p < 0.001. Se diagnosticó hipotirodismo en 4 familiares (5% vs. 2.5%, observado en el grupo control, p < 0.01, y los TPO-Ab fueron positivos en 14% de los familiares vs. 10% del grupo control, (p = ns. En el análisis molecular, solamente se halló un rearreglo del protoncogen TRK en una de las 7 familias con CPF. En conclusión, hallamos una elevada prevalencia de bocio e hipotiroidismo en los familiares de pacientes con CPT. Sin

  13. Carcinoma vulvar

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    Yamit Peñas Zayas

    2015-11-01

    Full Text Available El carcinoma de la vulva tiene una incidencia de aproximadamente un 3-5% dentro de todas las enfermedades ginecológicas malignas. El 90% de los tumores malignos de la vulva está constituido por carcinoma epidermoide, el resto son adenocarcinomas, carcinomas de células basales y melanomas. Se realiza la presentación de un caso de una paciente femenina de 25 años de edad con antecedentes  de Diabetes Mellitus tipo II y trombopatia, que ingresa en el servicio de ginecología con un cuadro cutáneo polimorfo, localizado en labios mayores y menores, dado por lesiones eritematoerosivas y vegetante, sospechándose clínicamente el diagnóstico  de un carcinoma epidermoide, corroborándose el mismo histológicamente al realizarse biopsia de piel. Se indicó tratamiento con quimioterapia. Por la edad de la paciente y ser menos frecuente en mucosa que en la piel,  motivo la presentación del caso.

  14. POTENSI PEMANFAATAN RUMPUT LAUT COKELAT CORONG (Turbinaria conoides UNTUK MENGURANGI RESIKO KANKER TIROID PADA MANUSIA YANG TERPAPAR RADIASI IODIUM 131 AKIBAT KECELAKAAN NUKLIR FUKUSHIMA

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    Juwita Tando

    2014-04-01

    radiasi mengaktifkan komponen dari jalur MAPK terutama melalui inversi paracentric kromosom. Sebuah metode pengobatan yang umum untuk mencegah eksposur I131 adalah dengan menjenuhkan tiroid secara regular dengan non-radioaktif I127. Ada alasan untuk berhati-hati dalam penggunaan kalium iodide atau suplemen yodium, karena penggunaan jangka panjang dapat menyebabkan kondisi seperti fenomena Jod-Basedow, efek Wolff-Chaikoff, memperburuk hipertiroid dan hipotiroid. Untuk itulah diperlukan adanya konsumsi iodium non radioaktif yang berasal dari unsur alami. Salah satu bahan yang dapat dikonsumsi yaitu Turbinaria conoides yang dikenal dimasyarakat Indonesia dengan rumput laut coklat corong.

  15. Diagnostic imaging of lobular carcinoma of the breast. Mammographic, US and MR findings; La diagnostica per immagini del carcinoma lobulare della mammella. Aspetti mammografici, ecografici e con Risonanza Magnetica

    Energy Technology Data Exchange (ETDEWEB)

    Bazzocchi, M.; Facecchia, I.; Zuiani, C.; Smania, S. [Udine Univ., Udine (Italy). Ist. di Radiologia; Puglisi, F. [Udine Univ., Udine (Italy). Reparto di Oncologia; Di Loreto, C. [Udine Univ., Udine (Italy). Ist. di Anatomia Patologica

    2000-12-01

    . Invasive lobular carcinoma of the breast is often very difficult to diagnose. Thus, it is suggested the use of integrated diagnostic imaging with mammography, US and, in some cases, MRI for earlier diagnosis and to identify further tumor localizations. [Italian] In questo articolo si valutano le piu' frequenti caratteristiche mammografiche ed ecografiche del carcinoma lobuare ed e' studiato quale possa essere l' apporto della RM nella migliore definizione dell'estensione di questo tipo di neoplasia soprattutto nel definire l'eventuale multifocalita' e/o multicentricita'. 39 pazienti affette da 46 neoplasie lobulari su 421 neoplasie mammarie sono stati esaminate. In 39 casi si e' fatto ricorso alla agobiopsia percutanea microistologica con ago da 14G (36/39 eseguite sotto guida ecografica, 3/39 sotto guida mammografica), in 2 direttamente alla biopsia chirurgica. Per 5 lesioni la diagnosi e' avvenuta solo dopo mastectomia. Tutte le pazienti sono state sottoposte a mammografia e a ecografia (10-13 MHz); 8 pazienti sono state sottoposte anche a RM. Ventotto su 46 lesioni (60,9%) erano palpabili. Con l'agobiopsia percutanea microistologica sono state diagnosticate correttamente 38/39 lesioni (97,4%). Nella mammografia l'aspetto piu' frequente e' stato quello di opacita' nodulare senza microcalcificazioni (34,8%), seguito da quella di opacita' spiculata senza microcalcificazioni (30,4%). In 1 caso erano presenti microcalcificazioni (2,2%). Nel 15,2% dei casi non c'era riscontro mammografico di lesione; 2 di tali lesioni (28,6%) sono state identificate solo grazie all'ecografia. Nell'ecografia l'aspetto piu' frequente e' stato quello di lesione ipocogena (43,5%), seguito dall'attenuazione posteriore del fascio ultrasonoro. Nel 15,2% dei casi non vi erano segni ecografici. Con la RM sono state individuate 13 lesioni. In 10 casi l'accentuazione e' stata superiore

  16. Epidemiología retrospectiva y análisis de las características múltiples del carcinoma espinocelular de la mucosa bucal con estudio histopatológico de biopsias

    OpenAIRE

    Baudo, Judith Ethel

    2000-01-01

    La Organización Mundial de la Salud ha venido estableciendo parámetros de estudio histológico y clasificaciones de las enfermedades precancerosas y carcinoma oral. Ha efectuado distintas revisiones con el fin de implicar los conceptos para los patólogos de todas las naciones. El objetivo general de este trabajo fue actualizar los aspectos epidemiológicos, clínicos, condicionantes, etiológicos, y de diagnóstico, pronóstico y tratamiento del carcinoma a células escamosas de la mucosa bucal. ...

  17. Evaluation of node involvement in non small cell bronchogenic carcinoma. CT-pathology correlation; Valutazione del fattore <> nel carcinoma polmonare non a piccole cellule. Correlazione tra tomografia computerizzata e anatomia patologica

    Energy Technology Data Exchange (ETDEWEB)

    Pirronti, T.; Macis, G.; Sallustio, G.; Minordi, L.M.; Marano, P. [Rome Univ. Cattolica del Sacro Cuore, Rome (Italy). Ist. di Radiologia; Granone, P. [Rome Univ. Cattolica del Sacro Cuore, Rome (Italy). Ist. di Patologia Chirurgica; Vecchio, F.M. [Rome Univ. Cattolica del Sacro Cuore, Rome (Italy). Ist. di Anatomia Patologica

    2000-05-01

    metastasis and 2 had lymph nodes either over or less than 1 cm. In all N2 patients the tumor histotype and the mediastinal location were also considered relative to the lesion site. A closer correlation was found with node morphology and density than with size. Indeed, CT sensitivity, specificity and diagnostic accuracy were 97, 100 and 97%, respectively, for the former versus 52, 93 and 77% for the latter. Adeno-carcinoma was the predominant histotype (70.5%) in N2 patients. Metastases to node region 4 were predominant in right upper lobe carcinomas while node region 5 was predominant in left upper lobe lesions. Other criteria can be associated with size to improve CT diagnostic accuracy in N staging. Technique optimization plays a major role particularly in the late, thin slice, examination phase. [Italian] Scopo di questo lavoro e' valutare il ruolo della TC nell'identificazione di altri segni morfologici di interessamento metafisico dei linfonodi con la finalita' di ottenere migliore definizione del fattore N poiche' elemento critico nella stadiazione di un carcinoma polmonare non a piccole cellule e' il fattore N: essendo il diametro l'unico parametro usato per distinguere i linfonodi normali da quelli patologici, la TC del mediastino presenta accuratezza diagnostica solamente dell'80%. Sono stati studiati 137 pazienti con carcinoma polmonare noto o sospetto. Le scansioni TC sono state eseguite con la seguente tecnica: fase angiografica precoce con tecnica spirale e fase tardiva (ritardo 2 minuti, spessore 3 mm, intervallo 5 mm) per l'identificazione delle caratteristiche linfonodali. Nelle scansioni TC cosi' ottenute i linfonodi, localizzati in accordo alla mappa linfonodale secondo l'American Thoracic Society modificata da Mountain e Dresler, sono stati considerati nomrali quando non visibili o, se visibili, con diametro inferiore a un cm e con densita' omogenea; un linfonodo con diametro superiore a un cm con

  18. Carcinoma verrugoso

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    Esteban Quesada Jiménez

    2004-09-01

    Full Text Available Se presenta el caso de un paciente masculino de 76 años, vecino de Turrialba, agricultor, que consultó por una lesión de 3 años de evolución, localizada en la palma de la mano derecha a nivel palmar y compromiso de los dedos de la misma mano, caracterizada como una neoformación exofítica verrugosa de 5 por 11 cm. aproximadamente, con material caseoso entre sus crestas. La lesión ha estado creciendo de forma acelerada en los últimos 3 meses, causándole dolor y que le imposibilita ellaborar. Se le realizaron exámenes y se descartaron varias causas infecciosas, y concluyendo luego de varias biopsias con el diagnóstico de un carcinoma verrugoso. El paciente fue tratado mediante una amputación parcial de la mano. Este tumor es una variante del carcinoma epidermoide y presentamos su clasificación, patogénesis, histopatología, manifestaciones clínicas más frecuentes y diagnóstico diferencial.A 76 year old farmer from Turrialba (Cartago, presented with a 3 year old lesion of his right pal and proximal fingers. It was exophitic, wart like, and it measured 5x11 cm, draining caseous material from its crests. The lesion had grows quickly for the last 3 months and it became tender to the point of making impossible for him to work. A series of tests were done to rule out other possible infections causes, after several biopsies the diagnosis of verrocous carcinoma was made. The patient underwent a partial amputation of his hand. This tumor is considered a from of squamous cell carcinoma, we present here its classification, pathogenesis, histopathology, clinical manifestations and diferential diagnosis.

  19. Fisher criteria vs. thyroid aspiration citology in the diagnosis of hashimoto's thyroiditis Valor de cuatro de los criterios de Fischer comarados con la biopsia tiroidea por aspiración en el diagnóstico de la tiroiditis de Hashimoto

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    Constanza Díaz González

    1991-02-01

    Full Text Available

    One hundred and forty one patients with diffuse goiter were studied In order to evaluate four of Fisher's criteria for the diagnosis of Hashimoto's thyroiditis and to compare them with the result of thyroid aspiration biopsy. The following criteria were Included in the analysis: a physical characteristics of the gland; b appearance of the radioisotope scan; c plasma TSH concentration; d serum tilters of antithyroid antibodies. It was found that neither criteria was satisfactory in terms of sensitivity or specificity when compared with the result of the aspiration cytology. Ac. cordingly, we favor the use of the latter provided that adequate material is obtained and that an expert reading is performed.

    Se hicieron estudios clínico y de laboratorio y biopsia tiroidea por aspiración a 133 mujeres y 8 hombres con bocio difuso, de la Consulta Externa del Instituto de Seguros Sociales de Medellín, con el fin de comparar el valor diagnóstico de cuatro de los cinco criterios de Fisher con el de dicha biopsia, en la tiroiditis de Hashimoto. El diagnóstico citológico fue bocio simple (nodular, multinodular O coloide en 130 casos (92.2% y tiroiditis de Hashimoto en 11 (7.8%. Se aplicó la prueba tamiz a los criterios de Fisher, aisladamente O en grupos, con resultados deficientes en cuanto a sensibilidad y especificidad. Los criterios analizados fueron: a glándula moderadamente crecida, difusa y firme; b captación tiroidea Irregular; c TSH plasmática elevada; y d anticuerpos antitiroideos positivos a muy altas diluciones (≥:1 :25.000. La captación tiroidea Irregular tuvo la mayor sensibilidad (90% pero su especificidad fue sólo 11 %. En contraste, la sensibilidad y la especificidad de los títulos altos de anticuerpos antimicrosomales fueron 78% 71 %, respectivamente.

  20. Tiroiditis autoinmune inducida por interferón en pacientes con infección por virus de la hepatitis C. Interferon-induced autoimmune thyroiditis in a patient with hepatitis C virus infection

    Directory of Open Access Journals (Sweden)

    José L. Pinto

    2011-06-01

    Full Text Available Se reporta el caso de un varón de 43 años de edad, sin antecedentes patológicos de importancia, que acudió por elevación asintomática de la alanino aminotransferasa (ALT. El paciente negó ser bebedor crónico de alcohol. Se hizo el diagnóstico serológico de infección activa por hepatitis C y la biopsia de hígado reveló inflamación crónica activa. Con estos resultados, se inició tratamiento con interferón-alfa y ribavirina. Durante el tratamiento de 48 semanas, el paciente presentó anticuerpos antitiroideos positivos con variaciones en sus niveles de tirotropina (TSH y hormonas tiroideas. En el seguimiento postratamiento, el paciente continuó con hipertiroidismo por enfermedad de Graves. La tiroiditis autoinmune es una complicación frecuente del uso de interferón en pacientes con hepatitis C. En algunos casos se presenta como hipertiroidismo por enfermedad de Graves. Se debe evaluar la función tiroidea y los anticuerpos antitiroideos antes y durante el tratamiento con interferón.A 43 year old man presented with asymptomatic elevation of alanine aminotransferase (ALT and no relevant past history. The patient denied being a chronic alcohol drinker. Work-up revealed an active hepatitis C, and liver biopsy showed active inflammation. Treatment was started with interferon-alfa and ribavirin. During the 48 weeks of treatment, the patient developed positive thyroid antibodies with varying level of thyrotropin (TSH and thyroid hormones. At follow-up after treatment, the patient continued with hyperthyroidism due to Graves’ disease. Autoimmune thyroiditis is a common complication of using interferon in patients with hepatitis C. In some cases, it is presented as hyperthyroidism because of Graves’ disease. Thyroid function and thyroid antibodies should be evaluated before and during treatment with interferon.

  1. Manejo quirúrgico conservador del epitelioma basocelular infiltrante del canto interno Conservative surgical management of the basal cell carcinoma infiltrating inner canthus

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    A.J. Abulafia

    2011-03-01

    Full Text Available El epitelioma basocelular es el tumor maligno más frecuente de la piel. Su histogénesis se relaciona con la exposición actínica, por lo que su mayor incidencia se da a nivel de la cara. Normalmente la dermis actúa como factor de resistencia a la invasión tisular del tumor, situación que no se da en ciertas zonas en las que se observa un crecimiento con mayor invasión en profundidad. De estas zonas reviste importancia por su cercanía a órganos vitales el canto interno ocular, sobre todo en lesiones con extensa invasión local, por la disyuntiva del compromiso ocular y la decisión de su conservación o no. Comentamos nuestra experiencia en el tratamiento de lesiones infiltrativas de canto interno, así como la secuencia de estudio y las opciones terapéuticas.Basal cell epithelioma is the most common malignant tumor affecting the skin. It is mainly located in sun-exposed areas of the body surface due to solar actinic radiation. The facial skin is the most exposed, and the one with the highest incidence of these tumors. The dermis normally acts as a barrier against deepening, a fact which does not occur in certain areas. Among these critical sites the inner canthus region has a critical interest due to its proximity to vital organs with doubts about eye involvement and its preservation. We comment our experience in the management of infiltrative tumors of the inner canthus, diagnostic steps and therapeutical alternatives.

  2. Carcinoma verrugoso

    Directory of Open Access Journals (Sweden)

    Esteban Quesada Jiménez

    2004-09-01

    Full Text Available Se presenta el caso de un paciente masculino de 76 años, vecino de Turrialba, agricultor, que consultó por una lesión de 3 años de evolución, localizada en la palma de la mano derecha a nivel palmar y compromiso de los dedos de la misma mano, caracterizada como una neoformación exofítica verrugosa de 5 por 11 cm. aproximadamente, con material caseoso entre sus crestas. La lesión ha estado creciendo de forma acelerada en los últimos 3 meses, causándole dolor y que le imposibilita ellaborar. Se le realizaron exámenes y se descartaron varias causas infecciosas, y concluyendo luego de varias biopsias con el diagnóstico de un carcinoma verrugoso. El paciente fue tratado mediante una amputación parcial de la mano. Este tumor es una variante del carcinoma epidermoide y presentamos su clasificación, patogénesis, histopatología, manifestaciones clínicas más frecuentes y diagnóstico diferencial.

  3. Detección de la proteína core del virus de la hepatitis C y nivel de expresión de la proteína p 53 en casos de carcinoma hepatocelular

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    María C. Navas

    2004-02-01

    Full Text Available

    El principal factor de riesgo en más del 80% de los casos de carcinoma hepatocelular, es la infección por el Virus de la hepatitis B (HB o el de la hepatitis C (VHC. Algunos estudios sugieren
    que la proteína Core del VHC estaría implicada en el mecanismo
    oncogénico del VHC, debido a la capacidad de transformación
    celular en cooperación con H-ras (1, la capacidad de regulación o de interacción proteína-proteína con p53 (2 y al desarrollo de HCC en ratones transgénicos para la proteína Core (3.

     

     

  4. La mutacion H63D del gen HFE se asocia con un riesgo aumentado de carcinoma hepatocelular The H63D mutation of the HFE gene is related to the risk of hepatocellular carcinoma

    Directory of Open Access Journals (Sweden)

    P. Ropero

    2007-07-01

    Full Text Available Objetivo: comprobar si las mutaciones del gen HFE, que pueden inducir sobrecarga hepática de hierro, guardan relación con el riesgo de desarrollar carcinoma hepatocelular (CHC en sujetos predispuestos a sufrir este tumor. Material y métodos: se han incluido 196 pacientes (161 varones diagnosticados de CHC. Ninguno estaba diagnosticado de hemocromatosis. El grupo control estaba constituido por 181 sujetos sanos. Todos los sujetos eran españoles de raza blanca.Las mutaciones C282Y y H63D del gen HFE se identificaron mediante reacción en cadena de polimerasa (PCR sobre ADN genómico leucocitario utilizando enzimas de restricción específicas. Resultados (casos/controles: 1. Distribución genotípica: a mutación C282Y: 1/0 homocigotos, 12/23 heterocigotos, 183/158 normales (p = 0,07, n.s.; y b mutación H63D: 9/5 homocigotos, 85/52 heterocigotos, 102/124 normales (odds ratio 2,00, IC95% 1,29-3,12, p = 0,002. Cuatro casos y seis controles eran heterocigotos compuestos. 2. Frecuencias alélicas: a mutación C282Y: normales 378/339, mutados 14/23 (p = 0,11, n.s.; b mutación H63D: normales 289/300; mutados 103/62 (odds ratio 1,72, IC95% 1,19-2,50, p = 0,004. No se observaron diferencias en relación con el sexo, la edad o la etiología (VHC, VHB, etílica o mixta de la hepatopatía previa. Conclusiones: la mutación C282Y no guarda relación con el riesgo de desarrollar CHC en sujetos sin hemocromatosis conocida. La posesión de la mutación H63D se asocia con un riesgo aumentado de desarrollar CHC independientemente de la etiología de la hepatopatía crónica subyacente.Aim: to disclose whether mutations in the HFE gene inducing liver iron overload are related to the risk of hepatocellular carcinoma (HCC in otherwise predisposed patients. Patients and methods: one hundred and ninety-six patients (161 males diagnosed with HCC and 181 healthy controls were included in the study. All subjects were white Spaniards. C282Y and H63D mutations in the

  5. Avaliação do tratamento cirúrgico nos pacientes com metástase vertebral secundária ao carcinoma de mama Evaluación del tratamiento quirúrgico en pacientes con metástasis vertebrales secundarias a carcinoma de mama Evaluation of surgical treatment of patients with vertebral metastasis secondary to breast carcinoma

    Directory of Open Access Journals (Sweden)

    Alex Veneziano Oliveira Junior

    2012-09-01

    Full Text Available OBJETIVO: Avaliar os resultados cirúrgicos dos pacientes com metástase vertebral secundária ao carcinoma de mama. MÉTODOS: Vinte e duas pacientes operadas com doença metastática vertebral secundária ao carcinoma de mama foram avaliadas no pré-operatório, pós-operatório imediato e depois de 1 mês e 6 meses do procedimento cirúrgico, usando a escala numérica da dor e o índice de incapacidade de Oswestry (ODI. RESULTADOS: As medidas para dor produziram valor de p de 0,0001 para a diferença entre o pré-operatório e o pós-operatório imediato, 0,0005 entre o pós-operatório imediato e 1 mês de pós-operatório, e 0,0908 entre 1 mês de pós-operatório e 6 meses de pós-operatório, portanto, encontram-se evidências de diferenças entre o pré-operatório e o pós-operatório imediato, assim como entre o pós-operatório imediato e após o 1º mês, mas não há tal evidência entre o 1º e o 6º mês de pós-operatório. Quanto ao ODI, a diferença foi significativa em todos os períodos. CONCLUSÃO: A cirurgia melhora a dor e diminui a incapacidade dos pacientes com doença metastática secundária ao carcinoma de mama.OBJETIVO: Evaluar los resultados quirúrgicos de los pacientes con metástasis vertebrales secundarias a carcinoma de mama. MÉTODOS: Veintidós pacientes operados con enfermedad metastásica espinal secundaria a carcinoma de mama fueron evaluadas antes de la cirugía, inmediatamente después de la operación y después de 1 mes y 6 meses de la cirugía, mediante la escala numérica del dolor y el índice de discapacidad de Oswestry. RESULTADOS: Las medidas para el dolor produjeron un valor de "p" de 0,0001 para la diferencia entre el pre y postoperatorio, 0,0005 entre el postoperatorio inmediato y un mes después de la operación, y 0,0908 entre 1 mes después de la cirugía y el postoperatorio de 6 meses, por lo tanto, son la evidencia de las diferencias entre el pre y postoperatorio, así como entre el

  6. Carcinomas cutáneos en los pacientes receptores de un trasplante renal estudio de su incidencia, identifiación de las variables clínicas relacionadas e investigación de su relación con la infección por el virus del papiloma humano /

    OpenAIRE

    Fuente González, María José

    2004-01-01

    Consultable des del TDX Títol obtingut de la portada digitalitzada Introducción: Los carcinomas cutáneos son las neoplasias más frecuentes en los receptores de un trasplante renal (RTRs). Hasta el momento, los datos existentes sobre los factores de riesgo para el desarrollo de estos carcinomas y su posible relación con la infección por el virus del papiloma humano (VPH) en los RTRs son controvertidos. Objectivos : Investigar, prospectivamente, la incidencia acumulada de lesiones cancero...

  7. Parotid carcinoma

    DEFF Research Database (Denmark)

    Sørensen, Kristine Bjørndal; Godballe, Christian; de Stricker, Karin;

    2006-01-01

    OBJECTIVES: Our aim is to investigate the expression of kit protein (KIT) and epidermal growth factor receptor (EGFR) in parotid carcinomas in order to correlate the expression to histology and prognosis. Further we want to perform mutation analysis of KIT-positive adenoid cystic carcinomas....... PATIENTS AND METHODS: Formalin-fixed paraffin-embedded sections from 73 patients with parotid gland carcinomas were used for the study. The sections were stained with both KIT and EGFR polyclonal antibodies. Twelve KIT-positive adenoid cystic carcinomas were examined for c-kit mutation in codon 816....... RESULTS: Of all carcinomas 25% were KIT-positive and 79% were EGFR-positive. Ninety-two percentage of the adenoid cystic carcinomas were KIT-positive. None of the adenoid cystic carcinomas had mutations in codon 816 of the c-kit gene. CONCLUSION: Neither KIT- nor EGFR-expression seem to harbour...

  8. Reproducibilidad del diagnóstico histopatológico de lesiones precursoras del carcinoma gástrico en tres países latinoamericanos Reproducibility of histopathologic diagnosis of precursor lesions of gastric carcinoma in three Latin American countries

    Directory of Open Access Journals (Sweden)

    Elena Kasamatsu

    2010-10-01

    Full Text Available Objetivo. Evaluar la concordancia en el diagnóstico de lesiones precursoras del carcinoma gástrico de tipo intestinal entre observadores con diferente experiencia. Material y métodos. Se estudiaron 1 056 casos de biopsias gástricas: 341 de Colombia, 382 de México y 333 de Paraguay. En el diagnóstico de cada caso participaron patólogos sin experiencia en patología gastrointestinal (A, patólogos con experiencia en patología gastrointestinal (B y expertos que trabajan en un centro de referencia internacional (C. Resultados. La concordancia (k entre patólogos inexpertos y expertos fue pobre en el diagnóstico de gastritis atrófica (k=0.04 a 0.12 y displasia (k=0.11 a 0.05 y buena en el diagnóstico de metaplasia intestinal (k=0.52 a 0.58; la supervisión de un patólogo inexperto por un experto mejoró notablemente la concordancia en el diagnóstico de gastritis atrófica (k=0.65 y metaplasia intestinal (k=0.91 y, en un menor grado, de displasia (k=0.28. Al comparar la concordancia entre expertos antes y después de la reunión de consenso no hubo variación en el diagnóstico de gastritis atrófica (k=0.57; la concordancia varió de buena a excelente en el de metaplasia intestinal (k=0.67 a 0.81 y de pobre a buena en el de displasia (k=0.18 a 0.66. Conclusión. Los principales problemas se presentan en el diagnóstico de la gastritis crónica atrófica y la displasia. La concordancia interobservador depende de la experiencia del observador y la lectura de consenso.Objective. The aim was to evaluate the concordance in the diagnosis of precursor lesions of intestinal-type gastric carcinoma among observers with different levels of experience. Material and Methods. Gastric biopsies from 1 056 cases were studied: 341 from Colombia, 382 from Mexico, and 333 from Paraguay. Pathologists without experience (A and with experience (B in gastrointestinal pathology, as well as experts working in an international reference center (C participated in

  9. Squamous Cell Carcinoma

    Science.gov (United States)

    ... Kids’ zone Video library Find a dermatologist Squamous cell carcinoma Overview Squamous cell carcinoma: This man's skin ... a squamous cell carcinoma on his face. Squamous cell carcinoma: Overview Squamous cell carcinoma (SCC) is a ...

  10. Sebaceous Carcinoma

    Science.gov (United States)

    ... Hill Medical; 2008. p. 240-9. Nelson BR, Hamlet KR, Gillard M et al. “Sebaceous carcinoma.” J ... Acad Dermatol . 2003 48:401-8. Nelson BR, Hamlet KR, Gillard M et al . “Sebaceous carcinoma.” J ...

  11. Velocidad de crecimiento tumoral: Definición del valor pronóstico en el carcinoma epidermoide cutáneo y en el melanoma

    OpenAIRE

    2015-01-01

    La incidencia del cáncer de piel se ha incrementado exponencialmente en los últimos años debido en parte a la mayor longevidad de la población general a nivel mundial, y en parte atribuible a la modificación del comportamiento social con respecto a la exposición solar con un predominio de un patrón de exposición intenso vacacional desde mediados del siglo XX. Dentro de los diferentes cánceres de piel clasificados en base a la tasa de frecuencia/mortalidad global, el melanoma maligno ...

  12. Basal Cell Carcinoma

    Science.gov (United States)

    ... Kids’ zone Video library Find a dermatologist Basal cell carcinoma Overview Basal cell carcinoma: This skin cancer ... that has received years of sun exposure. Basal cell carcinoma: Overview Basal cell carcinoma (BCC) is the ...

  13. Factores pronósticos del carcinoma oral de células escamosas en estadio avanzado. Estudio clínico de 191 casos

    OpenAIRE

    Díaz Fernández, José María

    2013-01-01

    El carcinoma oral de células escamosas es el tumor epitelial maligno más frecuente en la cavidad oral y territorio maxilofacial, representando un 90-95% de los tumores malignos de esta localización, con una incidencia variable según el área geográfica, así en Estados Unidos y Europa presenta una incidencia en torno al 2-4%, mientras que en Asia se cifra en aproximadamente un 30%, probablemente motivado por diferentes hábitos tabáquicos y nutricionales. El paciente tipo es un varón entre lo...

  14. Biopsia por aspiración y supresión con hormonas tiroideas en el diagnóstico de cáncer tiroideo: comparación con la cirugía en 77 nódulos hipocaptantes Fine-Needle aspiration biopsy and suppression with thyroid hormone in the diagnosis of thyroid carcinoma

    Directory of Open Access Journals (Sweden)

    Humberto Aristizábal

    1992-01-01

    Full Text Available Se estudiaron 77 pacientes con nódulos tiroideos hipocaptantes, demostrados por gamagrafía, por medio de biopsia tiroidea por aspiración y terapia supresiva con hormonas tiroideas durante 6 meses o más. Se realizó estudio ecográfico del nódulo antes de iniciar la terapia y seis meses después de estarla administrando. Todos fueron intervenidos porque en ninguno desapareció el nódulo con la terapia, a pesar de que se obtuvo supresión de la tirotrofina en plasma. La biopsia tiroidea por aspiración (BT A fue Interpretada en todos los pacientes como bocio coloide o nodular o neoplasia folicular. En contraste, en el estudio de la pieza quirúrgica 52 pacientes presentaron bocio nodular, multinodular o coloide; 16 tenían carcinomas (12 papilares y 4 foliculares y 9 tiroiditis de Hashimoto. Contrariamente a lo esperado se observó que 5 de loS carcinomas (31.3% disminuyeron de volumen durante el tratamiento hormonal; de acuerdo a la ecografía la disminución promedio fue 0.41 cm3. En cambio 4 de los 52 nódulos benignos (7.7% aumentaron de volumen, en promedio 3.7 cm3. Estos hallazgos sugieren que la prueba de supresión con hormonas tiroideas no es confiable para definir si una lesión es benigna o maligna. En el estudio quirúrgico se demostró que 20.8% (16/77 de los nódulos eran carcinomas. A la luz de estos datos la biopsia por aspiración no estableció por lo general el diagnóstico de carcinoma; por ello se debe recurrir a la cirugía aunque la biopsia sea negativa.

    Seventy-seven patients with cold thyroid nodules were studied with flne-needle aspiration biopsy and suppression with thyroid hormone. The volume of the nodule was calculated ultrasonographycally at the beginning of the study and after six months of oral therapy with thyroglobulin, at doses sufficient to maintain TSH at the low limits of the normal

  15. Doppler echography and utilization of intravenous echo enhancer in the follow-up of hepato carcinoma with percutaneous radiological techniques; Ecografia Doppler y empleo del ecopotenciador intravenoso en el seguimiento del hepatocarcinoma con tecnicas radiologicas percutaneas

    Energy Technology Data Exchange (ETDEWEB)

    Forner, J.; Flored de la Torre, M.; Senis, C.; Lozano de Arnilla, M. C.; Ferrer, S.; Celma, M. I. [Hospital General Universitario de Valencia. Valencia (Spain)

    2002-07-01

    To evaluate the utilization of Doppler ultrasound scan in conjunction with echographic enhancer in the follow-up of hepato carcinomas treated by means of radiological intervention techniques. We treated 20 hepatic nodules diagnosed with hepato carcinoma either by means of chemo embolization or percutaneously (either injection of acetic acid or radio-frequency thermo-ablation). Doppler ultrasound scan was performed before and after the treatment by means of sectorial and convex multifrequency probes. Evaluated were the absence, presence and degree of vascularisation, as well as its distribution and characteristics. In all cases, a contrast-en-handed spiral CT was performed. Both studies served as a pattern for comparison before and after treatment. In post-treatment enhanced-echo-Doppler controls of the 18 patients treated with acetic acid, vascularisation was not demonstrated in 7 cases, peripheral vascularisation was detected in 4 cases, perforation vascularisation in another four, and central vascularisation was detected in 3 cases. Contrast-enhanced spiral CT demonstrated superimposed findings, except in one cases, in which the spiral CT detected central capitation of the nodule.With enhanced echo-Doppler, peripheral vascularisation was detected. In both nodules treated by means of radio-frequency thermo ablation, there was detected neither vascularisation in the echo-Doppler nor captation of contrast media in the CT. Doppler ultrasound scan is a good method of follow-up for treated hepato carcinomas. The utilization of echoenhancers increases its ability to detect vascularization it being comparable to that of contrast-enhanced CT. As such, Doppler ultrasound scan together with echoenhancers can help us both in the selection of treatment and evaluation of therapeutic response. (Author) 35 refs.

  16. Valor pronóstico del parámetro inmunohistoquímico p53 en los estadios I y II del carcinoma epidermoide de lengua móvil

    Directory of Open Access Journals (Sweden)

    J. Sánchez Jiménez

    2003-10-01

    Full Text Available Objetivo: El propósito de este estudio fue evaluar el marcador inmunohistoquímico p53 como factor pronóstico en pacientes que presentaban carcinoma epidermoide de lengua móvil en estadios I y II. Material y método: Se realizó un estudio retrospectivo de 36 pacientes (grupo homogéneo, correspondientes a un periodo de estudio de 10 años, comprendido entre los años 1985 y 1994. Las muestras procedieron de piezas quirúrgicas incluidas en bloques de parafina. Los estudios inmunohistoquímicos se han realizado aplicando la técnica inmunoperoxidásica, método ABC (complejo streptavidina-biotina-peroxidasa. Resultados y conclusiones: En la muestra homogénea estudiada, se apreció una relación significativa directa entre la inmunotinción positiva para p53 y la probabilidad de aparición de recidiva y/o muerte por enfermedad, así como una relación inversa entre la inmunotinción positiva para p53 y el tiempo medio de supervivencia en pacientes que presentaban carcinoma epidermoide de lengua móvil.Objetive: The purpose of this study was evaluating immunohistochemical marker p53 as a prognosis (diagnosis factor in patients which presented mobile tongue epidermoid carcinoma in stages I and II. Material and method: A retrospective study was carried out to 36 patients (homogeneous group corresponding to a study period of 10 years from 1985 to 1995. Samples came from surgical pieces included in paraffin blocks. Immunohistochemical studies were made by using immunoperoxidase technique method ABC (streptavidin-biotin- peroxidase complex. Results and conclusion: In the homogeneous sample case studied it a direct significant relation between positive immunotinción for p53 and the probability of reccurrence and/or death because of disease, as well as inverse relation between positive immunotinción for p53 and survival average time in patients which presented mobile tongue epidermoid carcinoma was observed.

  17. Role of multimedial diagnosis of breast cancer in women below 36 year of age; Ruolo della diagnostica integrata nella diagnosi del carcinoma mammario nelle donne con eta' inferiore ai 36 anni

    Energy Technology Data Exchange (ETDEWEB)

    Ciacco, Stefano; Brancato, Beniamino [Centro per lo studio della prevenzione oncologica, Firenze (Italy)

    2005-04-01

    mammography, 73.5% for ultrasonography and 90.9% for cytology (97.7% if inadequate samples were excluded), and overall sensitivity would be 96.1%. Conclusions: Differential diagnosis of breast cancer in women aged under 36 years is difficult, sensitivity being lower as compared to older women, with the only exception of cytology. The association of multiple tests (diagnostic imaging and cytology) is crucial to achieve an acceptable false negative rate. In particular, the extensive use of cytology in the presence of an even minimal doubt at palpation and/or imaging is strongly recommendable. Sensitivity must be calculated on the basis of an independent pathology registry, and false negatives must be defined within a given period after the test. Analysis limited to tests performed immediately before diagnosis leads to a biased over-estimation of sensitivity. [Italian] Scopo: Valutare la sensibilit� per carcinoma mammario delle diverse metodologie diagnostiche impiegate in una serie consecutiva di donne di et� inferiore ai 36 anni. Materiale e metodi: Analisi di 155 soggetti, con carcinoma incidente nel Registro Tumori Toscano dal 1985 al 2000. la sensibilit� delle metodiche � valutata rispetto all'esame pi� recente eseguito nell'anno precedente la diagnosi, in funzione di diverse variabili, quali le dimensioni del tumore e il periodo temporale. Risultati: La sensibilit� � risultata del 70.3% per l'esame clinico, 76.0% per la mammografia, 69.1% per l'ecografia e 80.6% per la citologia (86.2%, escludendo i prelievi inadeguati). La sensibilit� dipende dallo stadio per la clinica (pT1=60.6%; pT2=4=86.4%; {chi}2=10.2, p=0.001) e per l'ecografia (pT1=61.9%; pT2=4=92.0%; {chi}2=5.7, p=0.001) e dalla densit� radiologica del seno per la mammografia (densit� 50-100% =75.5%; 0-50 densit�=91.3%; {chi}2=1.85, p<0.17). Nei 112 casi esaminati con clinica, mammografia e citologia i tre metodi hanno avuto sensibilit� rispettivamente del 78.5%, 75

  18. Parathyroid carcinoma

    DEFF Research Database (Denmark)

    Qvist, N; Krøll, L; Ladefoged, C;

    1986-01-01

    Parathyroid carcinoma is a slow growing tumor, and the patients most often die from complications to the hypercalcemia. Therefore, any attempt should be made to remove local recurrence and metastasis surgically, as medical treatment is disappointing. A case treated with extensive vascular surgery...

  19. Precisión diagnóstica de la ecografía del nódulo tiroideo, concordancia con la citología preoperatoria y la anatomía patológica de la pieza quirúrgica

    OpenAIRE

    Vilanova Serra, Magdalena

    2016-01-01

    L’ecografia de tiroides és la principal prova diagnòstica per l’estudi dels nòduls tiroïdals (NT), permet determinar el seu risc de malignitat i la necessitat de realitzar una punció aspiració amb agulla fina (PAAF) dels nòduls sospitosos de malignitat. L’objectiu d’aquest estudi serà avaluar la precisió diagnòstica de les característiques ecogràfiques de malignitat dels NT (hipoecogenicitat, presència de microcalcificacions, absència d’halo sonogràfic, marges irregulars, augment de la vascul...

  20. Molecular pathology of breast apocrine carcinomas

    DEFF Research Database (Denmark)

    Celis, J.E.; Gromova, I.; Gromov, P.;

    2006-01-01

    Breast cancer is a heterogeneous disease that encompasses a wide range of histopathological types including: invasive ductal carcinoma, lobular carcinoma, medullary carcinoma, mucinous carcinoma, tubular carcinoma, and apocrine carcinoma among others. Pure apocrine carcinomas represent about 0.5%...

  1. Informes clínicos breves

    OpenAIRE

    Revista de la, Facultad de Medicina

    2012-01-01

    Carcinoma de tiroides / Cristian Roger Barbosa Sandoval y Edgar Jose Figueredo ; tutor Erix Boz6n -- Protocolo para el manejo de pacientes con trastorno afectivo bipolar manfaco (TABM) / Luis Eduardo Jaramillo y Ricardo Sanchez -- Apendicitis aguda: experiencia en el Hospital de La Misericordia / Enrique Villamizar Zuniga ; tutores Efrairn Bonilla, Mizrahinn Mendez -- Comparacion del crecimiento facial en pacientes con fisuras labio-palatinas reparadas mediante dos tecnicas de palatoplastia /...

  2. Carcinoma verrugoso en paciente joven Verrucous carcinoma in young patient

    Directory of Open Access Journals (Sweden)

    LN Rosa

    2003-06-01

    Full Text Available El carcinoma verrucoso es una variación de bajo grado de malignidad del carcinoma de células escamosas oral, y la mayoría surge en la mucosa oral de individuos que mascan tabaco de forma crónica (6, 8, 10. Estas lesiones encontradas predominantemente en hombres, con más de 55 años de edad (edad promedio de 65 a 70 anos y las regiones de mayor frecuencia en mucosa bucal incluyen vestíbulo mandibular, mucosa yugal y palato duro (6, 8. La lesión aparece como una placa espesa, difusa, bien demarcada e indolora, con proyecciones superficiales papilares o verruciformes. Microscópicamente, se observa la presencia de crestas interpapilares anchas y alargadas y producción abundante de ceratina (2. La metástasis es un evento raro en los carcinomas verrucosos (6, 8, 9. El tratamiento de elección es la excisión quirúrgica, asociada o no a la radioterapia. Los autores relatan un caso clínico de una paciente de 13 años de edad con lesión comprometiendo todo lo vermellion del labio inferior. El tratamiento inicial propuesto fue la radioterapia asociado a la quimioterapia, decido a la edad de la paciente, localización y extensión de la lesión. Después de una dosis total de 70Gy, hubo la regresión total de la lesión. Siendo así, el tratamiento del carcinoma verrucoso asociando a la radioterapia y quimioterapia se mostró adecuado en este caso.The verrucous carcinoma is a low grade variant of oral squamous cell carcinoma, and it mostly appears in the oral mucosa of individuals who chew tobacco chronically 6, 8, 10. The lesions are mainly found in men over 55 years old (average age 65 to 70 years and the most common regions in the oral mucosa include the mandibular vestibule, jugal mucosa and hard palate 6, 8. The lesion appears as a well-defined painless diffuse thick plaque with superficial papillary or verruciform projections. Under the microscope the presence of wide elongated interpapilIary ridges and copious keratin production are

  3. Carcinoma Celular Escamoso (CCE felino

    Directory of Open Access Journals (Sweden)

    Roque Lagarde

    2008-12-01

    Full Text Available INTRODUCCIÓNEl plano nasal blanco del felino es asiento frecuente del Carcinoma Celular Escamoso (CCE. Generalmente se produce a continuación de una dermatitis actínica recidivante estacional.Su incidencia es mayor en las regiones de clima templado y en felinos que tienen por costumbre “asolearse”crónicamente y durante períodos prolongados durante los meses del verano.Las radiaciones solares no ionizantes ultravioletas (UVB son más intensas y penetrantes a través de las capas superficiales de la piel durante los meses del verano y entre las 10 hs. y las 16 hs. (incidencia perpendicular de los rayos por lo que deberán ser evitadas.Siendo la nariz del gato una zona tan visible, llama la atención, que ciertas lesiones iniciales, algunas de regular tamaño (2mm, no sean advertidas por sus dueños y ocasionalmente, tenidas poco en cuenta por algunos profesionales.Posiblemente, el desconocimiento de la gravedad potencial de esta afección sea la causa de este proceder

  4. Giant basal cell carcinoma Carcinoma basocelular gigante

    Directory of Open Access Journals (Sweden)

    Nilton Nasser

    2012-06-01

    Full Text Available The basal cell carcinoma is the most common skin cancer but the giant vegetating basal cell carcinoma reaches less than 0.5 % of all basal cell carcinoma types. The Giant BCC, defined as a lesion with more than 5 cm at its largest diameter, is a rare form of BCC and commonly occurs on the trunk. This patient, male, 42 years old presents a Giant Basal Cell Carcinoma which reaches 180 cm2 on the right shoulder and was negligent in looking for treatment. Surgical treatment was performed and no signs of dissemination or local recurrence have been detected after follow up of five years.O carcinoma basocelular é o tipo mais comum de câncer de pele, mas o carcinoma basocelular gigante vegetante não atinge 0,5% de todos os tipos de carcinomas basocelulares. O Carcinoma Basocelular Gigante, definido como lesão maior que 5 cm no maior diâmetro, é uma forma rara de carcinoma basocelular e comumente ocorre no tronco. Este paciente apresenta um Carcinoma Basocelular Gigante com 180cm² no ombro direito e foi negligente em procurar tratamento. Foi realizado tratamento cirúrgico e nenhum sinal de disseminação ou recorrência local foi detectada após 5 anos.

  5. Thyroid cancer - medullary carcinoma

    Science.gov (United States)

    Thyroid - medullary carcinoma; Cancer - thyroid (medullary carcinoma); MTC; Thyroid nodule - medullary ... in children and adults. Unlike other types of thyroid cancer, MTC is less likely to be caused by ...

  6. Stages of Adrenocortical Carcinoma

    Science.gov (United States)

    ... Symptoms of adrenocortical carcinoma include pain in the abdomen. These and other signs and symptoms may be caused by adrenocortical carcinoma: A lump in the abdomen . Pain the abdomen or back. A feeling of ...

  7. Undifferentiated salivary gland carcinomas

    DEFF Research Database (Denmark)

    Herbst, H.; Hamilton-Dutoit, S.; Jakel, K.T.;

    2004-01-01

    Undifferentiated salivary gland carcinomas may be divided into small cell and large cell types. Among large cell undifferentiated carcinomas, lymphoepithelial carcinomas have to be distinguished, the latter of which are endemic in the Arctic regions and southern China where virtually all cases...... of these tumors are associated with the Epstein-Barr virus (EBV). Association with EBV may also be observed in sporadic cases, and detection of EBV gene products may aid their diagnosis. Immunohistology may be employed to resolve the differential diagnosis of undifferentiated salivary gland carcinomas, comprising...... malignant lymphomas, amelanotic melanomas, Merkel cell carcinomas, and adenoid cystic carcinomas, in particular in small biopsy materials. Because of the rarity of undifferentiated salivary gland carcinomas, the differential diagnosis should always include metastases of undifferentiated carcinomas arising...

  8. Liver cancer - hepatocellular carcinoma

    Science.gov (United States)

    Primary liver cell carcinoma; Tumor - liver; Cancer - liver; Hepatoma ... Hepatocellular carcinoma accounts for most liver cancers. This type of cancer occurs more often in men than women. It is usually diagnosed in people age 50 or ...

  9. Squamous cell carcinoma and pilonidal cyst disease.

    Science.gov (United States)

    Esposito, Francesco; Lauro, Mario; Tirone, Lucio Pasquale; Festa, Rosa Maria; Peluso, Gaia; Mazzoni, Giada; Scognamiglio, Marco; Grimaldi, Simona; Fresini, Antonio

    2015-02-20

    Il carcinoma a cellule squamose insorgente su malattia del seno pilonidale è una patologia abbastanza rara che sopraggiunge in presenza di malattia con decorso decennale. È caratterizzato da una crescita lenta ma da un’elevata invasività locale. Gli autori riportano il caso di un paziente di 63 anni con storia pluridecennale di malattia del seno pilonidale con ascessualizzazioni ricorrenti trattato chirurgicamente con resezione ampia e ricostruzione mediante uso di lembi. A distanza di 30 mesi non sono state osservate complicanze o recidive locali.

  10. Squamoid eccrine ductal carcinoma*

    Science.gov (United States)

    Saraiva, Maria Isabel Ramos; Vieira, Marcella Amaral Horta Barbosa; Portocarrero, Larissa Karine Leite; Fraga, Rafael Cavanellas; Kakizaki, Priscila; Valente, Neusa Yuriko Sakai

    2016-01-01

    Squamoid eccrine ductal carcinoma is an eccrine carcinoma subtype, and only twelve cases have been reported until now. It is a rare tumor and its histopathological diagnosis is difficult. Almost half of patients are misdiagnosed as squamous cell carcinoma by the incisional biopsy. We report the thirteenth case of squamoid eccrine ductal carcinoma. Female patient, 72 years old, in the last 6 months presenting erythematous, keratotic and ulcerated papules on the nose. The incisional biopsy diagnosed squamoid eccrine ductal carcinoma. After excision, histopathology revealed positive margins. A wideningmargins surgery and grafting were performed, which again resulted in positive margins. The patient was then referred for radiotherapy. After 25 sessions, the injury reappeared. After another surgery, although the intraoperative biopsy showed free surgical margins, the product of resection revealed persistent lesion. Distinction between squamoid eccrine ductal carcinoma and squamous cell carcinoma is important because of the more aggressive nature of the first, which requires wider margins surgery to avoid recurrence. PMID:28099603

  11. Squamoid eccrine ductal carcinoma.

    Science.gov (United States)

    Saraiva, Maria Isabel Ramos; Vieira, Marcella Amaral Horta Barbosa; Portocarrero, Larissa Karine Leite; Fraga, Rafael Cavanellas; Kakizaki, Priscila; Valente, Neusa Yuriko Sakai

    2016-01-01

    Squamoid eccrine ductal carcinoma is an eccrine carcinoma subtype, and only twelve cases have been reported until now. It is a rare tumor and its histopathological diagnosis is difficult. Almost half of patients are misdiagnosed as squamous cell carcinoma by the incisional biopsy. We report the thirteenth case of squamoid eccrine ductal carcinoma. Female patient, 72 years old, in the last 6 months presenting erythematous, keratotic and ulcerated papules on the nose. The incisional biopsy diagnosed squamoid eccrine ductal carcinoma. After excision, histopathology revealed positive margins. A wideningmargins surgery and grafting were performed, which again resulted in positive margins. The patient was then referred for radiotherapy. After 25 sessions, the injury reappeared. After another surgery, although the intraoperative biopsy showed free surgical margins, the product of resection revealed persistent lesion. Distinction between squamoid eccrine ductal carcinoma and squamous cell carcinoma is important because of the more aggressive nature of the first, which requires wider margins surgery to avoid recurrence.

  12. Selenio: nutriente objetivo para mejorar la composición nutricional del pescado cultivado

    Directory of Open Access Journals (Sweden)

    J. E. Vinchira

    2010-04-01

    Full Text Available El selenio (Se es un micromineral que se encuentra en forma de compuestos inorgánicoscomo selenito y seleniato, o compuestos orgánicos en forma de seleno-aminoácidostales como seleno-cisteína y seleno-metionina. El creciente mercado de los alimentosfuncionales incluye al selenio (componente funcional en el grupo de alimentos conefectos positivos para el ser humano. Este mineral genera beneficios para la salud yaque forma parte importante del glutatión peroxidasa (GSH-Px, enzima encargada deproteger el organismo contra agentes oxidantes. Adicionalmente, se reconoce que elselenio tiene efectos positivos en la función inmune, la actividad de la tiroides y lafertilidad. El selenio podría ser incorporado a los filetes de pescado mediante suplementaciónen la dieta. Este documento presenta una breve revisión sobre la temáticade alimentos funcionales, las principales características del selenio y su utilización ensistemas de alimentación para modificar la composición final de productos de origenanimal como el pescado.

  13. Selenio: nutriente objetivo para mejorar la composición nutricional del pesca do cultivado

    Directory of Open Access Journals (Sweden)

    JE Vinchira

    2010-01-01

    Full Text Available El selenio (Se es un micromineral que se encuentra en forma de compuestos inorgánicos como selenito y seleniato, o compuestos orgánicos en forma de seleno-aminoácidos tales como selenocisteína y seleno-metionina. El creciente mercado de los alimentos funcionales incluye al selenio (componente funcional en el grupo de alimentos con efectos positivos para el ser humano. Este mineral genera beneficios para la salud ya que forma parte importante del glutatión peroxidasa (GSH-Px, enzima encargada de proteger el organismo contra agentes oxidantes. Adicionalmente, se reconoce que el selenio tiene efectos positivos en la función inmune, la actividad de la tiroides y la fertilidad. El selenio podría ser incorporado a los filetes de pescado mediante suplementación en la dieta. Este documento presenta una breve revisión sobre la temática de alimentos funcionales, las principales características del selenio y su utilización en sistemas de alimentación para modificar la composición final de productos de origen animal como el pescado.

  14. Synchronous gastric neuroendocrine carcinoma and hepatocellular carcinoma

    DEFF Research Database (Denmark)

    Ewertsen, Caroline; Henriksen, Birthe Merete; Hansen, Carsten Palnæs

    2009-01-01

    UNLABELLED: Gastric neuroendocrine carcinomas (NECs) are rare tumours that are divided into four subtypes depending on tumour characteristics. Patients with NECs are known to have an increased risk of synchronous and metachronous cancers mainly located in the gastrointestinal tract. A case...... of synchronous gastric NEC and hepatocellular carcinoma in a patient with several other precancerous lesions is presented. The patient had anaemia, and a gastric tumour and two duodenal polyps were identified on upper endoscopy. A CT scan of the abdomen revealed several lesions in the liver. The lesions were...... invisible on B-mode sonography and real-time sonography fused with CT was used to identify and biopsy one of the lesions. Histology showed hepatocellular carcinoma. A literature search showed that only one case of a hepatocellular carcinoma synchronous with a gastric NEC has been reported previously. TRIAL...

  15. Metachronous colorectal carcinoma

    DEFF Research Database (Denmark)

    Bülow, Steffen; Svendsen, L B; Mellemgaard, A

    1990-01-01

    During the period 1943-67, 903 Danish patients aged less than 40 years had colorectal carcinoma. The patients were followed up for up to 41 years and during this period 44 of 501 (9 per cent) operated on for cure developed a metachronous colorectal carcinoma. The cumulative risk of a metachronous...... colorectal carcinoma was 30 per cent after up to 41 years of observation. The occurrence of a metachronous colorectal carcinoma was evenly distributed in the observation period. The cumulative survival rate after operation for a metachronous colorectal carcinoma was 41 per cent after 20 years of observation....... We propose a lifelong follow-up programme after resection of colorectal carcinoma for cure in this age group, including annual Hemoccult test and colonoscopy at 3-year intervals....

  16. URACHAL CARCINOMA IN BLADDER

    Institute of Scientific and Technical Information of China (English)

    薛丽燕; 吕宁; 何祖根; 林冬梅; 刘秀云

    2004-01-01

    Objective: To investigate the clinicopathologic features and diagnostic criteria of urachal carcinoma in the bladder.Methods: Seven cases of urachal carcinoma in the bladder were analyzed retrospectively. Results: All the tumors were found locating in the dome of bladder. Of them, 4 were mucinous adenocarcinoma, one was well differentiated papillary enteric adenocarcinoma, one was well differentiated squamous carcinoma, and one was neuroendocrine carcinoma. Cystomorphous urachal remnants were found in 4 cases. The main complaint was hematuria and all patients underwent partial excision of bladder and urachus. Conclusion: Mucinous adenocarcinoma is the main histo-pathological type, and cystomorphous urachal remnants are often accompanied with urachal carcinoma in the bladder. The key diagnostic criteria of urachal carcinoma in bladder are site and histopathology. And to examine the specimens carefully to find the urachal remnants is important.

  17. Autoinmunidad tiroidea: Mecanismos patogénicos comunes y distintivos en tiroiditis de Hashimoto y enfermedad de Graves Thyroid Autoimmunity: Common and Distinctive Pathogenic Mechanisms in Hashimoto's Thyroiditis and Graves' Disease

    Directory of Open Access Journals (Sweden)

    G Astarita

    2012-09-01

    Full Text Available Las enfermedades tiroideas autoinmunes (ETA son los desórdenes más frecuentes que llevan a la disfunción de la glándula tiroidea. Incluyen varias formas clínicas como Tiroiditis de Hashimoto (TH y Enfermedad de Graves (EG. La relación entre TH y EG ha sido objeto de debate por décadas. Si bien, muy diferentes en su clínica, algunos las consideran los lados opuestos de una misma moneda. En su patogénesis tienen aspectos en común, como la predisposición genética demostrado por la ocurrencia en una misma familia y en un mismo individuo. Sin embargo, diferencias en el microambiente local determinan la diferente expresión fenotípica o el viraje de una a otra patología. El objetivo de esta monografía es investigar similitudes y diferencias entre TH y EG en las distintas etapas que llevan al desarrollo de autoinmunidad. Los autores declaran no poseer conflictos de interés.Autoimmune thyroid disease (ATD is the most common disorder that leads to thyroid gland dysfunction. ATD manifests in various clinical forms, such as Hashimoto's Thyroiditis (HT and Graves' Disease (GD. The relation between HT and GD has been discussed for decades. Even if they greatly differ in their clinical features and treatment, some people believe they are the opposite sides of the same coin. In their pathogenesis, they share some mechanisms, such as genetic susceptibility, shown by the fact that they tend to occur both in the same person and within the same family. However, differences in the local micro-environment can determine the distinct phenotypic expression or the switch from one disease to the other. The aim of this monograph was to investigate similarities and differences between HT and GD at the diverse stages leading to the development of autoimmunity. No financial conflicts of interest exist.

  18. Carcinoma tricofolicular con capacidad metastásica

    Directory of Open Access Journals (Sweden)

    C.B. Pinilla-Martínez

    2015-03-01

    Full Text Available El carcinoma folicular es un tumor maligno derivado del folículo piloso. La mayor parte de los tumores foliculares son benignos, pero en los últimos años se han publicado casos aislados de tumores anexiales con características de malignidad y con una gran agresividad local siendo en principio tumores que se consideraban benignos. Creemos que este tumor está siendo infradiagnosticado, y como consecuencia, infratratado al ser confundido con otros tumores malignos originados en la piel, como el carcinoma basocelular y sobre todo con el carcinoma epidermoide, en parte por poca documentación y por la dificultad para su diagnóstico anatomopatológico. Presentamos un caso de carcinoma tricofolicular en cuero cabelludo en una mujer de 51 años de edad que rápidamente invade sistema nervioso central y que en solo 3 meses metastatiza a pulmón.

  19. [Breast carcinoma in men].

    Science.gov (United States)

    Zigić, B; Balvanović, D; Rac, S; Bilbija, S

    1989-01-01

    The authors describe 8 cases of carcinoma of the male breast treated at the Clinic of Surgery, Clinical Medical Center Banja Luka in the period 1968-1988. In their discussion, the authors review contemporary findings concerning the genesis, evolution and treatment of this carcinoma.

  20. Estudio morfométrico sobre el desarrollo y evolución de las glándulas tiroides durante la metamorfosis de Bufo arenarum

    Directory of Open Access Journals (Sweden)

    Miranda, Leandro Andrés

    1996-01-01

    Full Text Available Se ha estudiado el desarrollo y la evolución de las glándulas tiroideas durante la morfogénesis de Bufo arenarum. Usando diferentes parámetros morfométricos, hemos relacionado el crecimiento y desarrollo larval con el desarrollo de las glándulas tiroideas. Se observó que la longitud total, el peso de las larvas, el volumen glandular tiroideo y el diámetro folicular, aumentan hasta el estadio XV (fin de la prometamorfosis, mientras que el número de folículos y la altura de las células foliculares tiroideas se incrementan hasta el estadio XVII (mitad del clímax metamórfico. Todos estos parámetros disminuyeron considerablemente durante el clímax metamórfico mientras que en animales postmetamórficos se observó un incremento en los valores registrados. En base a los resultados obtenidos concluimos que hay un período de síntesis y almacenamiento de hormonas tiroideas durante el crecimiento larval y un segundo período caracterizado por la liberación de hormonas tiroideas hacia el final de la prometamorfosis y durante el clímax metamórfico. We studied the development and evolution of thyroid glands during Bufo arenarum morphogenesis. Using different morphometric parameters we related larval growth and metamorphosis with thyroid glands development We observed that total length, larval weight, thyroid gland volume and follicle diameter increased until stage XV (end of prometamorphosis, meanwhile the number of follicles and follicle cell height increased until stage XVII (midclimax. All these parameters decreased during metamorphic climax and an increase was observed in postmetamorphic animals. Our results lead us to conclude that during larval growth there is a period of synthesis and store of thyroid hormones. There is a second period characterized by thyroid hormones release during the end of prometamorphosis and metamorphic climax.

  1. Primary cutaneous myoepithelial carcinoma

    DEFF Research Database (Denmark)

    Frost, Markus Winther; Steiniche, Torben; Damsgaard, Tine Engberg;

    2013-01-01

    This study describes a case of primary myoepithelial carcinoma of the skin and reviews the available literature on this topic. Myoepitheliomas and carcinomas arise most frequently from myoepithelial cells within the salivary glands but are found in many anatomical locations. We documented a case...... of an 80-year-old man with a 2 × 2 × 1 cm tumour located on the scalp. This tumour emerged over a period of 2 months. The tumour was radically excised, and histological examination revealed a cutaneous myoepithelial carcinoma. At an 18-month follow-up, no recurrence of the tumour was found. A systematic...... literature search identified 23 papers that reported 58 cases of cutaneous myoepitheliomas and myoepithelial carcinomas. All cases are reviewed in the presented paper. This case report and literature review serves to increase awareness regarding myoepithelial carcinomas. These tumours exhibit high metastatic...

  2. Normalización del UMELISA TSH NEONATAL® a discos de 3 mm

    Directory of Open Access Journals (Sweden)

    Darlenis Herrera Vallejera

    2006-01-01

    Full Text Available El hipotiroidismo congénito (HC, reconocido como la causa más frecuente de retraso mental evitable en la infancia, es una enfermedad heredo metabólica con una incidencia mundial de 1 : 4 000. La detección precoz y el inicio de una terapia temprana evita el retardo en el crecimiento y en la maduración ósea, lográndose un desarrollo psicomotor normal en los niños. La disponibilidad de ensayos para la determinación de las hormonas T4 y de estimulaci ón de la tiroides (HET ha permitido el establecimiento de programas de pesquisa neonatal del HC. En el Centro de Inmunoensayo se desarrolló el UMELISA TSH NEONATAL®, ensayo para la determinación de la HET en muestras de sangre seca sobre papel de filtro de recién nacidos. En este ensayo, se emplean discos de 5 mm de las muestras, calibradores y un control. Con el incremento del número de enfermedades a diagnosticar en los programas de pesquisa, es necesario aprovechar al máximo las muestras de sangre colectadas en papel de filtro. En este trabajo, se describen las modificaciones realizadas al UMELISA TSH NEONATAL® que permiten el empleo de discos de 3 mm . Se obtuvieron perfiles de precisión entre 7,0 y 10,4 % y una exactitud relativa del 96,3 %. El límite de detección es de 1 mUI/L . El ensayo modificado mostró una buena correlación lineal con el UMELISA TSH NEONATAL® (r = 0,9. Las modificaciones realizadas al ensayo no afectan su sensibilidad, precisión y exactitud, por lo que puede ser empleado en la pesquisa neonatal del hipotiroidismo congénito.

  3. Carcinoma primario intraóseo

    Directory of Open Access Journals (Sweden)

    Susana Szlabi

    2013-12-01

    Full Text Available El carcinoma primario intraóseo (PIOC es un tumor poco frecuente, definido como carcinoma escamoso que se desarrolla en huesos maxilares, no teniendo conexión inicial con mucosa ni piel adyacente. Es localmente agresivo, con una incidencia de metástasis en ganglios regionales del 28% y en pulmón del 5%, en el momento del diagnóstico. Su origen puede ser de novo o a partir de otros tumores odontogénicos. Los huesos maxilares son los únicos que tienen en su interior tejidos epiteliales, por lo cual esta neoplasia se localiza exclusivamente en este sitio, predominantemente en la mandíbula. Los criterios diagnósticos del PIOC incluyen: histopatología de carcinoma escamocelular, ausencia de compromiso de mucosa oral y senos paranasales, descartando metástasis de un sitio distante en base a estudios clínicos y métodos complementarios. El tratamiento de elección consiste, siempre que sea posible, en la exéresis con criterios oncológicos, y radio y/o quimioterapia adicional. Se requiere además, cirugía reconstructiva con injerto y/o prótesis con fines estéticos y funcionales. Presentamos el caso de un varón de 72 años, que consultó por molestias en maxilar inferior tres meses después de la extracción de un molar. Se efectuó biopsia por curetaje y luego se resecó el maxilar inferior con vaciamiento ganglionar. El estudio histopatológico mostró un carcinoma escamoso pobremente diferenciado, infiltrante en hueso maxilar, con hallazgos morfológicos que lo vinculaban a quiste odontogénico residual, y metástasis en 15 de 48 ganglios aislados. Se realizó radioterapia postquirúrgica, falleciendo a los 30 meses del diagnóstico por deterioro progresivo.

  4. Epidermoid carcinoma of the conjunctiva. Case report

    Directory of Open Access Journals (Sweden)

    María Adela LLull Tombo

    2011-12-01

    Full Text Available Se presenta el caso de un paciente de 76 años de edad con un carcinoma epidermoide de conjuntiva.  La manifestación clínica principal fue la molestia, el dolor y el ojo rojo. Al examen físico ocular se encontró lesión blanquecina, con vasos sanguíneos en el ángulo interno, por encima del pterigion en ojo derecho. Se diagnosticó como carcinoma epidermoide de la conjuntiva, el cual evolucionó de forma rápida e invasiva. Se intervino quirúrgicamente en tres ocasiones debido a las recurrencias.

  5. Evaluation of the diagnostic capacity of the DETEC-PC for the attract of iodine in thyroid; Evaluacion de la capacidad de diagnostico del DETEC-PC para la captacion de iodo en tiroides

    Energy Technology Data Exchange (ETDEWEB)

    Alonso A, D. [CPHR, Calle 20 No. 4113 e/41 y 47. Playa C.P. 11300, La Habana (Cuba); Arista R, E. [CEADEN, A.P. 6195, C.P. 10600, La Habana (Cuba); Alonso A, A. [Hasselt University, Building D, 3590 Diepenbeek (Belgium)]. e-mail: lola@cphr.edu.cu

    2006-07-01

    A comparative study whose main objective is the evaluation of the diagnoses capacity of the DETEC - PC, a detection-measurement system for the reception of iodine in thyroid, with it presumptive diagnostic is presented. To such effect a clinical essay was designed in which all the patients included in the study were evaluated using the new equipment (DETEC - PC) and the standard diagnoses procedure well-known for the initials RIA. The sample size was calculated in a such way that the percent of gross coincidence among both methods could be estimate with a precision of 1% at a trust level of 95%. In total 110 patients were included in the essay. For the analysis of the agreement in the diagnostic it was used the Kappa statistician. The obtained results showed a high grade of gross agreement and an agreement level among moderate and substantial when it was corrected by possible random agreement among both procedures. (Author)

  6. Calibration of the identiFINDER detector for the iodine measurement in thyroid using the Monte Carlo method; Calibracion del detector identiFINDER para la medicion de yodo en tiroides utilizando el metodo Monte Carlo

    Energy Technology Data Exchange (ETDEWEB)

    Ramos M, D.; Yera S, Y.; Lopez B, G. M.; Acosta R, N.; Vergara G, A., E-mail: dayana@cphr.edu.cu [Centro de Proteccion e Higiene de las Radiaciones, Calle 20 No. 4113 e/ 41 y 47, Playa, 10600 La Habana (Cuba)

    2014-08-15

    This work is based on the determination of the detection efficiency of {sup 125}I and {sup 131}I in thyroid of the identiFINDER detector using the Monte Carlo method. The suitability of the calibration method is analyzed, when comparing the results of the direct Monte Carlo method with the corrected, choosing the latter because the differences with the real efficiency stayed below 10%. To simulate the detector their geometric parameters were optimized using a tomographic study, what allowed the uncertainties minimization of the estimates. Finally were obtained the simulations of the detector geometry-point source to find the correction factors to 5 cm, 15 cm and 25 cm, and those corresponding to the detector-simulator arrangement for the method validation and final calculation of the efficiency, demonstrating that in the Monte Carlo method implementation if simulates at a greater distance than the used in the Laboratory measurements an efficiency overestimation can be obtained, while if simulates at a shorter distance this will be underestimated, so should be simulated at the same distance to which will be measured in the reality. Also, is achieved the obtaining of the efficiency curves and minimum detectable activity for the measurement of {sup 131}I and {sup 125}I. In general is achieved the implementation of the Monte Carlo methodology for the identiFINDER calibration with the purpose of estimating the measured activity of iodine in thyroid. This method represents an ideal way to replace the lack of patterns solutions and simulators assuring the capacities of the Internal Contamination Laboratory of the Centro de Proteccion e Higiene de las Radiaciones are always calibrated for the iodine measurement in thyroid. (author)

  7. Metastasis in the base of the cranium: initial manifestation of a hepato carcinoma. Findings in the CT and MRI; Metastasis en la base del carneo: manifestacion inicial de un hepatocarcinoma. Hallazgos en TC y RM

    Energy Technology Data Exchange (ETDEWEB)

    Fernandez, M. T.; Saiz, A.; Cardenal, A.; Oruezabal, M. [Hospital Clinico San Carlos. Madrid (Spain)

    2000-07-01

    We present a case of hepato carcinoma (HC) whose first clinical manifestation was diplopia. The imaging methods showed a sold mass in the base of the cranium with meningioma characteristics. The histological study showed the existence of hepatocytes, which confirmed the diagnosis of metastasis of the HC: We present the X-ray findings in the CT and MRI of this case and the differential diagnosis with other tumors that affect the cranium base. We also perform a bibliographic review of this clinical manifestation with such an unusual X-ray. (Author) 19 refs.

  8. Ruolo delle metodiche avanzate di Imaging nel follow-up del cancro del retto extraperitoneale

    OpenAIRE

    Calogero, Armando

    2011-01-01

    Il carcinoma o cancro del retto è un tumore maligno che rappresenta il 30-35% di tutti i tumori del grosso intestino che a loro volta rappresentano il 10% di tutti i cancri. L'80% dei pazienti con CRC presenta una malattia suscettibile di intervento chirurgico curativo (R0) . Purtroppo,circa il 40% di questi pazienti svilupperà una recidiva, soprattutto entro i primi tre anni. Per il cancro del retto,soprattutto in quello del retto extraperitoneale la recidiva pelvica rimane un problema s...

  9. Salivary gland carcinomas

    DEFF Research Database (Denmark)

    Therkildsen, M H; Andersen, L J; Christensen, M;

    1998-01-01

    The prognosis of salivary gland carcinomas is difficult to assess. Simple mucin-type carbohydrates (T and sialosyl-T antigens, Tn and sialosyl-Tn antigens) have been shown to be of value in predicting prognosis for carcinomas in other locations. We studied the prognostic significance...... of the expression of these structures in a retrospective study of 133 patients with salivary gland carcinomas, using immunohistochemistry and a panel of well-defined monoclonal antibodies (MAbs) on formalin-fixed paraffin-embedded tissues. Sialosyl-Tn, T and sialosyl-T antigens were not correlated with prognosis...

  10. Molecular characterization of Italian nevoid basal cell carcinoma syndrome patients.

    Science.gov (United States)

    Pastorino, L; Cusano, R; Nasti, S; Faravelli, F; Forzano, F; Baldo, C; Barile, M; Gliori, S; Muggianu, M; Ghigliotti, G; Lacaita, M G; Lo Muzio, L; Bianchi-Scarra, G

    2005-03-01

    Mutations in the PTCH gene, the human homolog of the Drosophila patched gene, have been found to lead to the autosomal dominant disorder termed Nevoid Basal Cell Carcinoma Syndrome (NBCCS, also called Gorlin Syndrome). Patients display an array of developmental anomalies and are prone to develop a variety of tumors, with multiple Basal Cell Carcinomas occurring frequently. We provide here the results of molecular testing of a set of Italian Nevoid Basal Cell Carcinoma Syndrome patients. Twelve familial patients belonging to 7 kindreds and 5 unaffected family members, 6 non-familial patients and an additional set of 7 patients with multiple Basal Cell Carcinoma but no other criteria for the disease were examined for mutations in the PTCH gene. All of the Nevoid Basal Cell Carcinoma Syndrome patients were found to carry variants of the PTCH gene. We detected nine novel mutations (1 of which occurring twice): 1 missense mutation (c.1436T>G [p.L479R]), 1 nonsense mutation (c.1138G>T [p.E380X]), 6 frameshift mutations (c.323_324ins2, c.2011_2012dup, c.2535_2536dup, c.2577_2583del, c.3000_3005del, c.3050_3051del), 1 novel splicing variant (c.6552A>T) and 3 mutations that have been previously reported (c.3168+5G>A, c.1526G>T [p.G509V], and c.3499G>A [p.G1167R]). None of the patients with multiple Basal Cell Carcinoma but no other criteria for the syndrome, carried germline coding region mutations.

  11. Cholangitis and multiple liver abscesses after percutaneous ethanol injection (PEI for recurrent hepatocellular carcinoma (HCC Colangitis y abscesos hepáticos múltiples tras la inyección percutánea de etanol (IPE en el tratamiento del carcinoma hepatocelular recurrente

    Directory of Open Access Journals (Sweden)

    Fernando Macias-García

    2013-02-01

    Full Text Available Percutaneous ablation procedures are minimally invasive treatments for unresectable early stage hepatocellular carcinoma (HCC. These techniques are usually safe, but rare and even fatal complications have been described. We present a fatal result after percutaneous ethanol injection (PEI for the treatment of a recurrent HCC in a non-cirrhotic liver, with subsequent development of diffuse cholangitis and multiple liver abscesses. Although percutaneous drainage and intensive antibiotic treatment were employed, the patient finally died. We discuss about the etiology and the physiopathology of this rare complication in which the therapeutic options are limited and usually unsuccessful.

  12. Thyroid cancer - papillary carcinoma

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/000331.htm Thyroid cancer - papillary carcinoma To use the sharing features on ... the lower neck. Causes About 80% of all thyroid cancers diagnosed in the United States are the papillary ...

  13. MEDULLARY THYROID CARCINOMA

    Directory of Open Access Journals (Sweden)

    V. S. Medvedev

    2013-01-01

    Full Text Available Medullary thyroid carcinoma belongs to orphan diseases affecting a small part of the population. Multicenter trials are required to elaborate a diagnostic algorithm, to define treatment policy, and to predict an outcome.

  14. Parathyroid carcinoma: case report

    Science.gov (United States)

    STURNIOLO, G.; GAGLIANO, E.; TONANTE, A.; TARANTO, F.; PAPALIA, E.; CASCIO, R.; DAMIANO, C.; VERMIGLIO, F.; STURNIOLO, G.

    2013-01-01

    Summary: The authors present a case of parathyroid carcinoma in a patient with primary hyperparathyroidism. Following a literature review, the clinical and diagnostic profile, treatment and prognosis of this rare disease are discussed. PMID:23837957

  15. Breast carcinoma metastases.

    Science.gov (United States)

    Bodzin, G A; Staren, E D; Faber, L P

    1998-02-01

    With careful selection of patients, complete resection of pulmonary metastases from breast carcinoma may be a useful therapeutic option. Such a treatment appears to offer a significant survival benefit when compared with medical treatment alone, or with incomplete resection.

  16. Papillary thyroid carcinoma

    DEFF Research Database (Denmark)

    Godballe, C; Asschenfeldt, P; Sørensen, J A;

    1994-01-01

    The age influence on the prognosis of papillary thyroid carcinoma was analyzed in a group of 67 patients. A marked decline in cause-specific survival was found for patients older than 60 years of age at the time of diagnosis. In order to find a tumor-biological explanation of the prognostic...... invasion and distant metastases. The results indicate that 60 years of age the time of diagnosis may be the "prognostic break-point" for papillary thyroid carcinoma....

  17. Pathobiology of ovarian carcinomas

    Institute of Scientific and Technical Information of China (English)

    Mojgan Devouassoux-Shisheboran; Catherine Genestie

    2015-01-01

    Ovarian tumors comprise a heterogeneous group of lesions, displaying distinct tumor pathology and oncogenic potentiel. These tumors are subdivided into three main categories: epithelial, germ cell, and sex-cord stromal tumors. We report herein the newly described molecular abnormalities in epithelial ovarian cancers (carcinomas). Immunohistochemistry and molecular testing help pathologists to decipher the significant heterogeneity of this disease. Our better understanding of the molecular basis of ovarian carcinomas represents the first step in the development of targeted therapies in the near future.

  18. Imaging of tongue carcinoma

    OpenAIRE

    Ong, Cheng K.; Chong, Vincent F.H.

    2006-01-01

    The tongue enables taste and plays a critical role in formation of food bolus and deglutition. The tongue is also crucial for speech and the earliest sign of tongue paresis is a change in the quality of speech. Given the importance of the tongue, tongue carcinoma should be accurately staged in order to optimise treatment options and preserve organ function. The intent of this review is to familiarise radiologists with the pertinent anatomy of the tongue and the behaviour of tongue carcinoma s...

  19. Uso del Propanolol en Hipertiroidismo

    Directory of Open Access Journals (Sweden)

    Alfredo Jácome Roca

    1993-08-01

    Full Text Available

    Cuando el organismo se encuentra expuesto a concentraciones elevadas de T4 y/o de T3. La fracción libre de estas hormonas es la que ejerce su función biológica, mientras que la mayor parte de la concentración total está ligada a proteínas transportadoras, formando un reservorio hormonal tiroideo.

    El estado hipermetabólico observado en el hipertiroidismo, variable en severidad de acuerdo con niveles hormonales, causa y edad, produce síntomas que pueden relacionarse con una actividad simpático-mimética excesiva y a un aumento del catabolismo. Aunque los tratamientos clásicos del hipertiroidismo incluyen las tioureas, el yodo radiactivo y la cirugía, preferidos en forma prioritaria de acuerdo con la causa y con la edad, en la mayoría de los casos debe realizarse un bloqueo beta-adrenérgico como tratamiento coadyuvante, precisamente para antagonizar la excesiva actividad simpático-mimética (1.

    Las causas más frecuentes del síndrome hipertiroideo son la Enfermedad de Graves, el bocio no dular tóxico (anteriormente llamado Enfermedad de Plummer, el adenoma tóxico, la toroiditis subaguda de De Quervain y la tirotoxicosis factitia o la iatrogénica. Hay causas más raras como la Hashitoxicosis, los TSH-omas, los tumores trofoblásticos, el estruma ovárico y el hipertiroidismo yodo-inducido. Situaciones especiales se consideran el hipertiroidismo durante el embarazo o la cirugía, la crisis o tormenta tirotóxica y las complicaciones cardiacas.

    El Graves se caracteriza por un bocio difuso hiperfuncionante asociado a exoftalmos y mixedema pretibial, con presencia de inmunoglobulinas estimulantes de la tiroides (TSI, por lo que hace parte de la llamada Enfermedad Tiroidea Autoinmune y del Síndrome Poliglandular Autoinmune. El bocio nodular tóxico, observado en personas de mayor edad, es más bien un proceso evolutivo de un bocio presente por muchos años, con un cuadro clínico no siempre florido.

    Muchas de

  20. La inflamación y su papel en el desarrollo del cáncer gástrico Inflammation and its Role in the Development of Gastric Carcinoma

    Directory of Open Access Journals (Sweden)

    Warner Alpízar-Alpízar

    2009-04-01

    Full Text Available La infección por Helicobacter pylori produce, en algunos pacientes, inflamación crónica en el estómago, gastritis atrófica y cáncer gástrico. Los mecanismos moleculares que conducen de la infección a la inflamación crónica y al cáncer son desconocidos. La magnitud y el proceso de la inflamación dependen del tipo de cepa de H. pylori y de la respuesta del hospedero ante la infección. Esta respuesta inflamatoria está regulada por citoquinas, algunas de las cuales han sido asociadas con cambios en la secreción de ácido en el estómago y con el riesgo de desarrollar cáncer gástrico y varias lesiones gástricas precancerosas. Sin embargo, la relación entre citoquinas y cáncer gástrico no es del todo clara. Esta revisión se enfoca en los procesos inflamatorios asociados con el desarrollo del cáncer gástrico.Helicobacter pylori infection results, in some patients, in chronic inflammation of the stomach, atrophic gastritis and gastric cancer. The molecular mechanisms that lead from infection to chronic inflammation and gastric cancer are not understood. The degree of inflammation varies and depends on the H. pylori strain and the host response against the infection. The inflammatory response is regulated by cytokines, some of which have been associated with acid gastric secretion changes and with increased risk of stomach cancer and some precancerous lesions. Nevertheless, the relationship between cytokines and gastric cancer is not clear yet. This review focuses on the inflammatory processes associated with the development of gastric malignancies.

  1. Expresión de las moléculas del Complejo Mayor de Histocompatibilidad clase II y moléculas co-estimuladoras en carcinomas orales in vitro

    OpenAIRE

    Villarroel, Mariana; Speight, Paul M.; Barrett, A. William

    2005-01-01

    El descubrimiento de que el epitelio escamoso estratificado que cubre la mucosa oral podia expresar moleculas del Complejo Mayor de Histocompatibilidad clase II en varias condiciones patologicas de tipo inflamatorio abrio la posibilidad de que los queratinocitos orales sean celulas inmunologicamente activas, las cuales pueden funcionar con .celulas presentadoras de antigenos'ñ. Para una efectiva activacion de los linfocitos T, las celulas presentadoras de antigenos requie...

  2. Oesophageal carcinoma presenting with a synchronous asymptomatic colon carcinoma

    OpenAIRE

    Alok Gupta; Bharat Chauhan; V Rangarajan; Saral Desai; Vanita Noronha; Kumar Prabhash

    2013-01-01

    The advancement in diagnostic techniques has resulted in increased incidence of occult second primary in cancer patients. Here, we report a case of symptomatic oesophageal carcinoma and synchronous asymptomatic colon carcinoma diagnosed through Positron Emission Tomography-Computed Tomography imaging.

  3. Synchronous thyroid carcinoma and squamous cell carcinoma. A case report

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Jae Seo [Chonnam National Univ. School of Dentistry, Kwangju (Korea, Republic of)

    2006-12-15

    Thyroid carcinoma occurring as a second primary associated with head and neck squamous cell carcinoma (SCC) is unusual. This report presents a synchronous thyroid carcinoma and squamous cell carcinoma in the anterior palate region of a 41-year-old man. The clinical, radiologic, and histologic features are described. At 10-month follow-up after operation, no evidence of recurrence ana metastasis was present.

  4. Typical and atypical lymphatic flows in breast carcinoma.

    Science.gov (United States)

    Pasta, Vittorio; Monteleone, Francesco; D'Orazi, Valerio; Del Vecchio, Luca; Sottile, Daniela; Iacobelli, Silvia; Monti, Massimo

    2015-01-01

    La pratica, universalmente riconosciuta, della ricerca e biopsia del linfonodo sentinella nella stadiazione dei tumori ha evidenziato una serie di situazioni anatomiche e fisiologiche che hanno consentito una più approfondita conoscenza del comportamento del flusso linfatico nel soggetto sano e nel paziente affetto da neoplasia. In particolar modo abbiamo concentrato la nostra attenzione sulle pazienti sottoposte a ricerca linfoscintigrafica del linfonodo sentinella in vista di interventi chirurgici per carcinoma mammario; abbiamo valutato statisticamente la sede in cui è stato reperito il LS e nell’eventualità di drenaggio in sedi anomale il percorso del flusso linfatico. Si è fatto riferimento, per questo studio, alla casistica del Dipartimento di Scienze Chirurgiche dell’Università La Sapienza di Roma maturata negli ultimi 2 anni. Lo scopo del nostro studio è stato quello di valutare statisticamente la sede del linfonodo sentinella, le possibilità di flussi linfatici in direzione non usuale e in questi casi dove, quando e perché. Ne sono emersi riscontri degni di analisi critica e considerazioni oggetto del presente lavoro.

  5. Early onset sebaceous carcinoma

    Directory of Open Access Journals (Sweden)

    Kaltreider Sara A

    2011-09-01

    Full Text Available Abstract Background Ocular sebaceous carcinoma can masquerade as benign lesions resulting in delay of diagnosis. Early recognition is even more difficult in young patients where the disease rarely occurs. Here, we provide a clinicopathological correlation of ocular sebaceous carcinoma in a young individual lacking history of hereditary cancer or immunosuppression. Findings A detailed histopathological study including p53 DNA sequencing was performed on an aggressive sebaceous carcinoma presenting in a healthy 32 year-old Caucasian woman. She had no history of retinoblastoma, evidence for a hereditary cancer syndrome, or radiation therapy. However, she potentially was at risk for excessive UV light exposure. A detailed review of the literature is also provided. A moderately well differentiated sebaceous carcinoma was established histopathologically arising from the meibomian gland of the upper eyelid. In most areas, the cytoplasm contained small but distinct Oil-red-O positive vacuoles. Direct sequencing of p53 identified a G:C→A:T mutation at a dipyrimidine site. The mutation results in substitution of arginine for the highly conserved glycine at residue 199 located at the p53 dimer-dimer interface. Energy minimization structural modeling predicts that G199R will neutralize negative charges contributed by nearby inter- and intramonomeric glutamate residues. Discussion This study points to the importance of recognizing that sebaceous carcinoma can occur in young patients with no evidence for hereditary cancer risk or radiation therapy. The G199R substitution is anticipated to alter the stability of the p53 tetrameric complex. The role of UV light in the etiology of sebaceous carcinoma deserves further study. Our findings, taken together with those of others, suggest that different environmental factors could lead to the development of sebaceous carcinoma in different patients.

  6. Espalhamento Thomson no tiroide compacto TC-1

    OpenAIRE

    Luiz Angelo Berni

    1996-01-01

    Resumo: Pela primeira vez foi instalado o diagnóstico de espalhamento Thomson no Toróide Compacto TC-1 da Unicamp. Primeiramente o diagnóstico foi realizado com uma única passagem do laser de rubi ( energia: 3 J -duração: 40 ns ) pelo plasma com injeção axial e radial do laser e observado a 90° .Com a injeção axial obtivemos uma densidade de (4,3 ± 0,7)x1021 m-3 e uma temperatura eletrônica de ( 8 ± 3) eV. Estes resultados foram confirmados com a geometria radial de injeção do laser com uma d...

  7. General Information about Adrenocortical Carcinoma

    Science.gov (United States)

    ... Symptoms of adrenocortical carcinoma include pain in the abdomen. These and other signs and symptoms may be caused by adrenocortical carcinoma: A lump in the abdomen . Pain the abdomen or back. A feeling of ...

  8. Treatment Option Overview (Adrenocortical Carcinoma)

    Science.gov (United States)

    ... Symptoms of adrenocortical carcinoma include pain in the abdomen. These and other signs and symptoms may be caused by adrenocortical carcinoma: A lump in the abdomen . Pain the abdomen or back. A feeling of ...

  9. Brain metastasis from esophageal carcinoma

    Directory of Open Access Journals (Sweden)

    Almasi Saeid

    2004-10-01

    Full Text Available Brain metastasis from esophageal carcinoma is rare. In our center, among 301 cases of esophageal cancer referred for radiotherapy during a 14-year period, brain metastasis from esophageal carcinoma was detected in one case. An unusual case of esophageal carcinoma that presented with brain metastasis is reported.

  10. ANÁLISIS RETROSPECTIVO DEL CARCINOMA CUTÁNEO TIPO BASOCELULAR Y ESCAMOCELULAR EN BOGOTÁ-COLOMBIA: EPIDEMIOLOGÍA, PREVENCIÓN Y TRATAMIENTO A retrospective analysis of basall cell and squamous cell skin carcer in Bogota, Colombia: its epidemiology, prevention and treatment

    Directory of Open Access Journals (Sweden)

    óscar Iván Barón Estrada

    2009-01-01

    Full Text Available Antecedentes. El carcinoma cutáneo no melanoma del tipo basocelular (CBC y escamocelular (CEC, tiene tasas de incidencia cercanas al 13 por ciento y es el más prevalente en la población blanca. Trae elevada morbilidad para el paciente y altos costos para el sistema de salud, y aunque es la neoplasia maligna mas frecuentemente diagnosticada, en Colombia sólo se tienen estadísticas en instituciones oncológicas, haciendo énfasis principalmente en melanomas. Entre los principales factores de riesgo se encuentra la exposición a los RUVB, tipo de piel, la radiación, el virus del papiloma humano (HPV y su tratamiento incluye medicación tópica, crioterapia, electrofulguración y cirugía. Objetivo. Analizar algunas características epidemiológicas del cáncer cutáneo (CBC - CEC en nuestro medio, estableciendo similitudes y diferencias respecto a la literatura actual. Material y métodos. En la clínica San Pedro Claver se revisaron 202 historias clínicas de pacientes con diagnóstico confirmado de CBC O CEC de 2004 a 2006 en un estudio retrospectivo de serie de casos y se analizaron las variables más comunes como el tipo de lesión, su ubicación, tamaño, patrón histológico y tratamiento. Resultados. Ingresaron en el estudio 112 pacientes, de los cuales cerca del 60 por ciento eran hombres, con una edad media de 69.5 años. El 90 por ciento de las lesiones se localizaban en cara (mejillas, párpados, nariz. Del 70 por ciento de las lesiones que correspondían a CBC el tipo histológico más frecuente fue sólido nodular y del 22 por ciento de lesiones que correspondían a CEC, el moderadamente diferenciado de célula grande fue el más común. Las lesiones tuvieron un tamaño promedio de 2 cm y los procedimientos quirúrgicos más usados fueron resección más injerto (44.1%, seguido de resección más colgajo local (23.5%. El 5 por ciento de los pacientes tenían lesiones previas y uno de cada cuatro tuvo algún tipo de reca

  11. Early epidermoid carcinoma. A case presentation Carcinoma epidermoide primitivo. Presentación de un caso

    Directory of Open Access Journals (Sweden)

    Julian Viera Llanes

    2009-12-01

    Full Text Available The early epidermoid carcinoma is considered the strangest breast tumor with an incidence that only represents from 0,04 to 0,075 % out of all malignant tumors of the breast. It is a variety of the metaplastic carcinoma constituted by pavement keratinizing cells with an inconstant presence of fusocellular sarcomatoid elements, that reach great volume and frequently present as cystic tumours that may be confused with a breast abscess. This is the case of a 41 year-old white female from Cienfuegos municipality, Cuba, who presented to the provincial Mastology consultation because of a two month follow up of a 5 cm tumor in the right outer upper quadrant of her breast. Surgical removal of the tumor was performed and the result of the biopsy revealed a little differentiated epidermoid carcinoma. At present the patient has no metastasis and receives treatment at the outpatient. Its unusual presentation has led this case to be published. El carcinoma epidermoide primitivo es considerado el tumor más raro de la mama, con una incidencia que representa solo del 0,04 al 0,075 % de todos los tumores malignos de mama. Es una variedad de carcinoma metaplásico constituido por células pavimentosas queratinizantes, con presencia inconstante de elementos fusocelulares sarcomatoides, estos alcanzan grandes volúmenes y se presentan frecuentemente como tumoraciones quísticas que pueden confundirse con un absceso mamario. El caso que se presenta es una paciente femenina de 41 años de edad, de color de piel blanca, residente en el municipio de Cienfuegos que acudió a la consulta de Mastología de la provincia por presentar una tumoración de 5 cms. en el cuadrante superior externo de la mama derecha, de dos meses de evolución. Se realizó exèresis de la tumoración y se recibió informe de la biopsia con el resultado de carcinoma epidermoide poco diferenciado. Actualmente la paciente es seguida por consulta y está libre de metástasis. Por lo inusual del

  12. Subungual squamous cell carcinoma*

    Science.gov (United States)

    Padilha, Carolina Barbosa de Sousa; Balassiano, Laila Klotz de Almeida; Pinto, Julyana Calegari; de Souza, Flávia Crespo Schueler; Kac, Bernard Kawa; Treu, Curt Mafra

    2016-01-01

    Although subungual squamous cell carcinoma is rare, it is the most common primary malignant neoplasms in this location. The higher incidence occurs in the fingernails, but involvement of the toenails is also possible. Subungual squamous cell carcinoma often looks like other more common benign lesions, such as fungal infection, onychomycosis, or viral wart. These factors, together with a general lack of awareness of this disease among physicians, often result in delayed diagnosis. Therefore, it is underdiagnosed, with few reports in the literature. The authors present a case of a man with a diagnosis of subungual squamous cell carcinoma in the hallux, without bone involvement, which was submitted to the appropriate surgical treatment. PMID:28099608

  13. Simultaneous Laryngeal Squamous Cell Carcinoma and Papillary Thyroid Carcinoma

    Directory of Open Access Journals (Sweden)

    Bighan Khademi

    2011-04-01

    Full Text Available The association of squamous cell carcinoma of the larynx with thyroid papillary carcinoma is an unusual finding. From 2004 to 2011, approximately 250 patients underwent laryngectomies due to squamous cell carcinoma of the larynx at the Otolaryngology Department of Khalili Hospital, affiliated with Shiraz University of Medical Sciences, Shiraz, Iran. In three patients, synchronous occurrence of squamous cell carcinoma and thyroid papillary carcinoma was found. Histopathologic study of the lymph nodes revealed metastatic papillary thyroid carcinoma in one case. We report three cases of thyroid papillary carcinoma incidentally found on histological examinations of resected thyroid lobes, as a procedure required for treatment of head and neck squamous cell carcinoma. In comparison, laryngeal squamous cell carcinoma needs more aggressive treatment than well-differentiated thyroid carcinoma. The prevalence of thyroid papillary carcinoma, as an incidental finding in our study was 0.01%. Therefore, preoperative evaluation of the thyroid gland by ultrasonography and fine needle aspiration biopsy of suspicious lesions is recommended in patients who are candidates for open laryngectomy.

  14. Primary fallopian tube carcinoma

    Directory of Open Access Journals (Sweden)

    Mladenović-Segedi Ljiljana

    2009-01-01

    Full Text Available Introduction. Primary fallopian tube carcinoma is extremely rare, making 0.3-1.6% of all female genital tract malignancies. Although the etymology of this tumor is unknown, it is suggested to be associated with chronic tubal inflammation, infertility, tuberculous salpingitis and tubal endometriosis. High parity is considered to be protective. Cytogenetic studies show the disease to be associated with over expression of p53, HER2/neu and c-myb. There is also some evidence that BRCA1 and BRCA2 mutations have a role in umorogeneis. Clinical features. The most prevailing symptoms with fallopian tube carcinoma are abdominal pain, abnormal vaginal discharge/bleeding and the most common finding is an adnexal mass. In many patients, fallopian tube carcinoma is asymptomatic. Diagnosis. Due to its rarity, preoperative diagnosis of primary fallopian tube carcinoma is rarely made. It is usually misdiagnosed as ovarian carcinoma, tuboovarian abscess or ectopic pregnancy. Sonographic features of the tumor are non-specific and include the presence of a fluid-filled adnexal structure with a significant solid component, a sausage-shaped mass, a cystic mass with papillary projections within, a cystic mass with cog wheel appearance and an ovoid-shaped structure containing an incomplete separation and a highly vascular solid nodule. More than 80% of patients have elevated pretreatment serum CA-125 levels, which is useful in follow-up after the definite treatment. Treatment. The treatment approach is similar to that of ovarian carcinoma, and includes total abdominal hysterectomy and bilateral salpingo-oophorectomy. Staging is followed with chemotherapy.

  15. Carcinomatosis peritoneal secundaria a carcinoma Lobulillar de mama

    OpenAIRE

    PRIEGO J,PABLO; RODRÍGUEZ V,GLORIA; REGUERO C,Mª EUGENIA; CABANAS M,JACOBO; LISA C,EDUARDO; PEROMINGO F,ROBERTO; FRESNEDA M,VIRGILIO

    2007-01-01

    Introducción: Aunque el cáncer de mama metastatiza con mayor frecuencia en ganglios linfáticos, hueso, pulmón e hígado, también se puede extender hacia el tracto gastrointestinal, peritoneo y órganos ginecológicos. Material y Método: Describimos tres casos de carcinomatosis peritoneal secundaria a la diseminación metastásica de un carcinoma lobulillar infiltrante de mama. En los tres casos el diagnóstico se hizo varios años después del descubrimiento del tumor primario y en dos de ellos se ob...

  16. Primary adrenal sarcomatoid carcinoma

    Directory of Open Access Journals (Sweden)

    Aftab S. Shaikh

    2014-03-01

    Full Text Available Adrenal sarcomatoid carcinomas are extremely rare tumors presenting with extensive locoregional spread at the time of diagnosis. Patients succumb to metastases within a couple of months. As a result, very few cases are reported in the literature until now. We present a case of a 62-year old female with non-functional sarcomatoid carcinoma of the right adrenal gland. There was no radiological evidence of locoregional metastases. Patient underwent right adrenalectomy. Follow up after 3 months showed para-aortic lymphadenopathy and similar left adrenal mass on computed tomography. Patient refused further treatment and succumbed to the disease. A brief case report with review of literature is presented.

  17. Urachal Carcinoma: Imaging Findings

    Directory of Open Access Journals (Sweden)

    Vanessa Monteiro

    2012-02-01

    Full Text Available Urachal carcinoma is a rare neoplasm, which accounts for only 0.5–2% of bladder malignancies, and arises from a remnant of the fetal genitourinary tract. A 46-year-old woman presented with a history of pelvic pain and frequent daytime urination. Ultrasound (US, computed tomography (CT, and magnetic resonance (MR demonstrated a supravesical heterogeneous mass with calcifications. The patient underwent a partial cystectomy with en-bloc resection of the mass and histopathological examination revealed the diagnosis of urachal adenocarcinoma. Urachal carcinomas are usually associated with poor prognosis and early diagnosis is fundamental. CT and MR are useful to correctly diagnose and preoperatively staging.

  18. Fisiopatología del exoftalmos endocrino: Aspectos históricos Pathophysiology of Endocrine Exophthalmos

    Directory of Open Access Journals (Sweden)

    MA Pisarev

    2012-09-01

    Full Text Available La fisiopatología del exoftalmos endocrino ha ido evolucionando a lo largo del tiempo. En primer lugar fue necesario que los trabajos originales de Graves y de Basedow asociaran la alteración ocular con la disfunción tiroidea. Estudios complementarios demostraron que el exoftalmos también se puede observar en pacientes con Tiroiditis de Hashimoto. Estudios posteriores han demostrado la presencia de una sustancia o factor al que denominaron Factor exoftalmizante en el suero de pacientes. La demostración experimental de que se podía producir exoftalmos por un mecanismo autoinmune y la demostración de la presencia de un estimulador tiroideo de acción prolongada (LATS llevó al concepto actual acerca de la participación de un mecanismo inmunológico en la fisipatología de esta afección. Los autores declaran no poseer conflictos de interés.The pathophysiology of endocrine exophthalmos has changed with the advances of Medicine. Described for the first time associated with hyperthyroidism by Graves and von Basedow, further studies demonstrated that it also may occur in patients with autoimmune thyroiditis. It is caused by the increase of retro ocular tissue volume. An exophthalmos producing substance (EPS was found in the serum of those patients. The experimental demonstration that exophthalmos may be prduced by an autoimmune mechanism, and the finding that a circulating immunoglobulin, the Long Acting Thyroid Stimulator (LATS is the cause of Graves disease, led to the present concept on the pathogrenesis of this disease The authors do not have conflicts of interest.

  19. Manejo conservador de una fistula de quilo por diseción radical de cuello: reporte de un caso y revisión de la literatura

    OpenAIRE

    E Brenes Leñero; M Murillo Ceciliano; E Mora Segura

    2015-01-01

    Se expone el caso de un paciente masculino de 59 años con diagnóstico de carcinoma medular de tiroides con metástasis ganglionares, al cual se le realiza una tiroidectomía total bilateral con disección radical de cuello modificada tipo III. En el postoperatorio se documenta fístula del conducto torácico. Se dio un manejo conservador con dieta hiperprotéica sin carbohidratos y rica en triglicéridos de cadena media el cual fue satisfactorio.

  20. Manejo conservador de una fistula de quilo por diseción radical de cuello: reporte de un caso y revisión de la literatura

    Directory of Open Access Journals (Sweden)

    E Brenes Leñero

    2015-12-01

    Full Text Available Se expone el caso de un paciente masculino de 59 años con diagnóstico de carcinoma medular de tiroides con metástasis ganglionares, al cual se le realiza una tiroidectomía total bilateral con disección radical de cuello modificada tipo III. En el postoperatorio se documenta fístula del conducto torácico. Se dio un manejo conservador con dieta hiperprotéica sin carbohidratos y rica en triglicéridos de cadena media el cual fue satisfactorio.

  1. Adrenalectomía lumboscópica en un paciente con feocromocitoma y neoplasia endocrina múltiple tipo 2B

    OpenAIRE

    Guillermo Montoya-Martínez; Jorge Moreno-Palacios; Eduardo Serrano-Brambila

    2009-01-01

    La neoplasia endocrina múltiple tipo 2B es un padecimiento autosómico dominante, conlleva carcinoma medular de tiroides, feocromocitoma, ganglioneuromas en mucosas e intestino y habitus marfanoide. Se presenta el caso de un paciente de 35 años de edad con diagnóstico de neoplasia endocrina múltiple tipo 2B y feocromocitoma suprarrenal derecho, tratado con adrenalectomía lumboscópica. El diagnóstico del feocromocitoma incluye detección de catecolaminas en suero y orina, estudios de imagen como...

  2. Prolidase activity and oxidative stress in patients with breast carcinoma A prospective randomized case-controlled study.

    Science.gov (United States)

    Bayhan, Zulfu; Zeren, Sezgin; Kocak, Cengiz; Kocak, Fatma Emel; Duzgun, Sukru Aydin; Algin, Mustafa Cem; Taskoylu, Burcu Yapar; Yaylak, Faik

    2016-09-19

    Lo stress ossidativo gioca un ruolo importante nella patogenesi delle malattie neoplastiche. La prolidasi è un costituente della matrice metalloproteinasica, gioca un ruolo maggiore nel metabolismo del collagene, nell’accrescimento cellulare e nel rimodellamento strutturale. Una elevata attività prolidasica è stata dimostrata in molti casi di carcinomi. Lo scopo del presente studio è quello di indagare sull’attività sierica della prolidasi, dello stato ossidativo (TOS) ed antiossidativo (TAS) totale, e di valutare il loro rapporto con lo stadio del tumore, delle metastasi linfonodali e della massa neoplastica in pazienti con carcinoma mammario. Per lo studio sono state arruolate 35 pazienti con carcinoma della mammella e 40 soggetti di controllo. Sono stati rilevati i livelli di TAS, TOS e dell’attività prolidasica, calcolando gli indici di stress ossidativo (OSI). Come risultato i livelli di TOS, di OSI e dell’attività prolidasica sono risultati significativamente più elevati nelle pazienti con carcinoma mammario rispetto al gruppo di controllo (rispettivamente (P < 0.001, P < 0.001, P = 0.002). I livelli di TAS sono risultati significativamente inferiori nelle pazienti con carcinoma mammario rispetto al gruppo di controllo (P = 0,016). Sono stati rilevate correlazioni positive tra attività prolidasica, ed i livelli di TOS e di OSI con lo stadio tumorale, le metastasi linfoniodali e le dimensioni del tumore. Negativa è risultata la correlazione tra i livelli di TAS e le dimensioni del tunore, ma nessuna correlazione tra i livelli di TAS e lo stadio del tumore, come pure con l’infiltrazione linfonodale. Si conclude che l’elevata attività prolidasica del siero e lo stress ossidativo possono associarsi col carcinoma mammario. L’accresciuta attività prolidasica può essere messa in relazione con lo stadio e la prognosi del carcinoma mammario.

  3. Ghost cell odontogenic carcinoma.

    NARCIS (Netherlands)

    Nazaretian, S.P.; Schenberg, M.E.; Simpson, I.; Slootweg, P.J.

    2007-01-01

    Ghost cell odontogenic carcinoma (GCOC) is the malignant counterpart of calcifying cystic odontogenic tumour and dentinogenic ghost cell tumour. This is the case of a middle-aged male who presented with a slow-growing maxillary tumour. He was asymptomatic until pain symptoms developed prior to initi

  4. Extrapulmonary small cell carcinoma.

    NARCIS (Netherlands)

    Heijden, E. van der; Heijdra, Y.F.

    2005-01-01

    This article reviews the recent literature on extrapulmonary small cell carcinomas. Until now, only four cases have been published in the English literature, two of those in the Southern Medical Journal. Sharing the information on diagnosis and treatment of these cases is important for better unders

  5. Verrucous carcinoma of larynx

    OpenAIRE

    Varshney, Saurabh; Singh, Jasprit; Saxena, R. K.; Kaushal, Anoop; Pathak, V. P.

    2004-01-01

    A 55 years male presented with hoarsness of voice (4 months), cough (1 month), difficulty in breathing (15 days). Patient underwent an emergency tracneostomy and further workup proved it to be a case of verrucous carcinoma of larynx. Patient was treated surgically with satisfactory result.

  6. Metastatic basal cell carcinoma caused by carcinoma misdiagnosed as acne - case report and literature review

    DEFF Research Database (Denmark)

    Aydin, Dogu; Hölmich, Lisbet Rosenkrantz; Jakobsen, Linda P

    2016-01-01

    Basal cell carcinoma can be misdiagnosed as acne; thus, carcinoma should be considered in treatment-resistant acne. Although rare, neglected basal cell carcinoma increases the risk of metastasis.......Basal cell carcinoma can be misdiagnosed as acne; thus, carcinoma should be considered in treatment-resistant acne. Although rare, neglected basal cell carcinoma increases the risk of metastasis....

  7. A rare case report: Carcinoma pancreas with hepatocellular carcinoma

    Directory of Open Access Journals (Sweden)

    Vikas Yadav

    2014-01-01

    Full Text Available Synchronous double malignancies involving different organs are relatively rare and uncommon finding. We report an interesting case of double malignancy in which a patient exhibited synchronous two separate carcinomas, pancreatic and hepatocellular carcinoma (HCC. Patient was a 64-year-old male who presented primarily with symptoms pertaining to the biliary obstruction and ultrasound of abdomen revealing pancreatic head mass. HCC was detected incidentally during the investigations for carcinoma pancreas.

  8. Miasis en paciente con Carcinoma Basocelular

    Directory of Open Access Journals (Sweden)

    Dr. Hugo Pérez Vedia

    2012-12-01

    Full Text Available Paciente de sexo masculino, de 71 años de edad, proveniente de la provincia Chapare, Cochabamba, es remitido por sus familiares al servicio de Infectologíadel Hospital Obrero Nº2 Caja Nacional de Salud, tras presentar cuadro clínico de varios días de evolución, caracterizado por lesión ulcerada de bordes irregulares, con secreciónserosanguinolenta localizada en hemicara derecha, con extensión a tejidos profundos y destrucción ósea con pérdida del pabellón auricular derecho,destrucción de la fosa nasal derecha, exposición de globo ocular por destrucción de tejido,destrucción del paladar duro y blando del lado derecho, lengua saburral, faringe hiperémica,acompañado de dolor intenso y signos de un procesoinfeccioso-inflamatorio en la zona, además de presentar larvas en dicha lesión, y antecedentes de carcinoma basocelular de 20 añosde evolución.

  9. Tumor suppressor and hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    Juliette Martin; Jean-Frangois Dufour

    2008-01-01

    A few signaling pathways are driving the growth of hepatocellular carcinoma. Each of these pathways possesses negative regulators. These enzymes, which normally suppress unchecked cell proliferation, are circumvented in the oncogenic process, either the over-activity of oncogenes is sufficient to annihilate the activity of tumor suppressors or tumor suppressors have been rendered ineffective. The loss of several key tumor suppressors has been described in hepatocellular carcinoma. Here, we systematically review the evidence implicating tumor suppressors in the development of hepatocellular carcinoma.

  10. Cryotherapy for hepatocellular carcinoma

    DEFF Research Database (Denmark)

    Awad, Tahany; Thorlund, Kristian; Gluud, Christian

    2009-01-01

    BACKGROUND: Hepatocellular carcinoma is the most common primary malignant cancer of the liver. Evidence for the role of cryotherapy in the treatment of hepatocellular carcinoma is controversial. OBJECTIVES: The aim of this review is to evaluate the potential benefits and harms of cryotherapy...... status) comparing cryotherapy with or without co-intervention(s) to placebo, no treatment, or other control interventions were considered for the review. Due to the absence of randomised clinical trials, we searched for quasi-randomised studies as well as prospective cohort studies and retrospective...... for the assessment of benefit as the study results were stratified according to both the type of hepatic malignancy (primary or secondary) and the intervention group. This retrospective study compared percutaneous cryotherapy with percutaneous radiofrequency. The remaining studies were excluded for the analyses...

  11. Carcinoma in a fibroadenoma.

    Directory of Open Access Journals (Sweden)

    Sarela A

    1995-01-01

    Full Text Available A carcinoma arising within a fibroadenoma is an unusual occurrence, with only a little over 100 reported cases. The purpose of this report is to increase the awareness of this entity and to discourage the practice of rendering a diagnosis on gross examination of the tumor. We are reporting a case with two distinct primary tumors within the same breast, one of which was arising within the fibroadenoma. Only two such cases have been previously reported.

  12. Emerging therapies for thyroid carcinoma.

    LENUS (Irish Health Repository)

    Walsh, S

    2012-02-01

    Thyroid carcinoma is the most commonly diagnosed endocrine malignancy. Its incidence is currently rising worldwide. The discovery of genetic mutations associated with the development of thyroid cancer, such as BRAF and RET, has lead to the development of new drugs which target the pathways which they influence. Despite recent advances, the prognosis of anaplastic thyroid carcinoma is still unfavourable. In this review we look at emerging novel therapies for the treatment of well-differentiated and medullary thyroid carcinoma, and advances and future directions in the management of anaplastic thyroid carcinoma.

  13. Epidemiological investigation of esophageal carcinoma

    Institute of Scientific and Technical Information of China (English)

    Hong Zhang; Shao-Hua Chen; You-Ming Li

    2004-01-01

    AIM: To review the characteristics of esophageal carcinoma in recent 30 years in the epidemiological investigation.METHODS: A total of 1 520 cases of esophageal carcinoma in the First Affiliated Hospital of Zhejiang University Medical College admitted from 1970 until now were reviewed. Their age, gender, position of carcinoma and histological type were analyzed.RESULTS: The morbidity of esophageal carcinoma was increasing during the observation period. Compared with the 1970s (9.5%), the ratio of adenocarcinoma significantly increased after the 1980s (19.1%). The difference was significant (P≤0.05).CONCLUSION: The morbidity of esophageal adenocarcinoma was increasing and advanced clinical study should be strengthened.

  14. Vismodegib in basal cell carcinoma.

    Science.gov (United States)

    Amaria, R N; Bowles, D W; Lewis, K D; Jimeno, A

    2012-07-01

    Vismodegib is a novel, small-molecule inhibitor of smoothened, a key component of the hedgehog signaling pathway. Increased hedgehog pathway signaling is critical in the development of hereditary and spontaneous basal cell carcinomas of the skin, and has been implicated in the development of a number of other tumors. In preclinical models, vismodegib demonstrated potent antitumor activity in hedgehog-dependent tumors, particularly basal cell carcinomas. Clinically, phase I and II studies showed dramatic anticancer activity in patients with advanced basal cell carcinomas. In January 2012, vismodegib was approved by the FDA for the treatment of unresectable or metastatic basal cell carcinomas of the skin.

  15. Potencial del Agua del suelo

    Directory of Open Access Journals (Sweden)

    Bustamante Heliodoro

    1986-12-01

    Full Text Available La energía potencial del agua presenta diferencias de un punto del suelo a otro; esas diferencias son las que originan el movimiento del agua de acuerdo a la tendencia universal de la materia en el sentido de moverse de donde la energía potencial es mayor a donde dicha energía es menor. En el suelo el agua en consecuencia se mueve hacia donde su energía decrece hasta lograr su estado de equilibrio. Se desprende entonces que la cantidad de energía potencial absoluta contenida en el agua, no es importante por sí misma, sino por su relación con la energía en diferentes lugares dentro del suelo. El concepto Potencial de agua del suelo es un criterio para esta energía.

  16. Interferencia del receptor del factor de crecimiento epidermoide (EGFR) y su utilidad como adyuvante en el tratamiento del cáncer avanzado de cabeza y cuello

    OpenAIRE

    Cortez V,Pedro; Torrente A,Mariela

    2014-01-01

    El receptor del factor de crecimiento epidermoide (EGFR) se encuentra sobreexpresado en más del 90% de los tumores escamosos de cabeza y cuello. Se han desarrollado diversos métodos para interferir con el EGFR entre los cuales el más utilizado es el anticuerpo monoclonal cetuximab. En esta revisión se discuten los resultados disponibles a la fecha del uso de cetuximab como adyuvante al tratamiento de pacientes con carcinomas avanzados de cabeza y cuello.

  17. Potencial del agua del suelo

    OpenAIRE

    Bustamante Heliodoro

    2012-01-01

    La energía potencial del agua presenta diferencias de un punto del suelo a otro; esas diferencias son las que originan el movimiento del agua de acuerdo a la tendencia universal de la materia en el sentido de moverse de donde la energía potencial es mayor a donde dicha energía es menor. En el suelo el agua en consecuencia se mueve hacia donde su energía decrece hasta lograr su estado de equilibrio. Se desprende entonces que la cantidad de energía potencial absoluta contenida en el agua, no es...

  18. PROGNOSTIC FACTORS IN CERVICAL CARCINOMA

    Institute of Scientific and Technical Information of China (English)

    路平; 梁秋冬; 魏磊; 郑全庆

    2002-01-01

    Objective: To evaluate factors for prognosis of cervical carcinoma. Methods: Expressions of mn23- HI, erbB3 and erbB4 were examined by immunohistochemical staining. The apoptosis was detected in situ by the TdT mediated duip-biotin nick end-labeling (TUNEL) technique. Mitotic cell were counted by HE dyeing. Results: FIGO stage and lymph node metastasis were the most important factors for evaluating prognosis in adenocarcinoma or squamous cell carcinoma. AI/MI was positively correlated with 5-year survival of cervical carcinoma. Positive expression of nm23-H1 combed with negative expression of erbB4 [nm23-H1(+)/erbB4(-)] predicted good prognosis for adeno-carcinoma. In multivariable Cox regression analysis, only FIGO stage and AI/MI were into equation. Conclusion: FIGO stage and AI/MI were independent evaluating parameter for adenocarcinoma or squamous cell carcinoma.

  19. Mucoepidermoid carcinoma of the conjunctiva.

    Science.gov (United States)

    Gamel, J W; Eiferman, R A; Guibor, P

    1984-05-01

    A 73-year-old man had a limbal nodule that, on histopathologic examination, proved to be mucoepidermoid carcinoma of the conjunctiva. Despite radiation therapy and extensive corneoscleral lamellar resection, widespread invasion of the lids and orbit ultimately led to exenteration. Although mucoepidermoid carcinoma of the conjunctiva resembles squamous cell carcinoma clinically and histopathologically, it pursues a more rapid and destructive clinical course. Intraepithelial invasion often leads to tumor involvement of conjunctiva and skin that seem normal on clinical examination. Special stains and a high level of suspicion are required for diagnosis of mucoepidermoid carcinoma of the conjunctiva, and proper initial management demands more aggressive surgical resection than is usually indicated for squamous cell carcinoma.

  20. del alcoholismo

    Directory of Open Access Journals (Sweden)

    Rodrigo Arias Duque

    2005-01-01

    Full Text Available Desde el punto de vista farmacológico, es importante comprender qué es el alcohol y cómo actúa en el organismo. No existe una causa simple, sino una interacción complicada de factores neuroquímicos, fisiológicos, psicológicos y sociales que originan y desarrollan esta grave enfermedad fármaco-dependiente. La acción psicofisiológica y farmacodinámica del alcohol es fundamentalmente depresiva, por la reducción de la transmisión sináptica en el sistema nervioso humano. Es un hecho conocido que el consumo excesivo de alcohol causa una disfunción aguda y crónica del cerebro, produciendo trastornos en el sistema nervioso central, presentando alteraciones en la memoria y en las funciones intelectuales como cálculo, comprensión y aprendizaje. A nivel hepático tiene lugar, en su mayoría, el metabolismo del alcohol, produciéndose un hígado graso alcohólico, aumentando el tamaño, terminando en necrosis e inflamación grave del hígado; esto se llama hepatitis alcohólica, y si se sigue consumiendo alcohol se desarrollará la cirrosis. El alcohol también ha estado relacionado con alteraciones del miocardio; se ha constatado en animales de experimentación sanos que tanto la velocidad de contracción del músculo cardiaco y su máxima tensión disminuyen en presencia del alcohol, como consecuencia, la fuerza de cada contracción y el aumento de presión en el ventrículo izquierdo son menores, perdiendo eficacia el corazón como bomba.

  1. Chemoradiotherapy in pancreatic carcinoma

    Directory of Open Access Journals (Sweden)

    Pathy Sushmita

    2009-01-01

    Full Text Available Pancreatic cancer patients present late in their course and surgical resection as a modality of treatment is of limited value. Majority develop loco-regional failure and distant metastasis, therefore, adjuvant therapy comprising of radiotherapy and chemotherapy are useful treatment options to achieve higher loco-regional control. Specialized irradiation techniques like intra-operative radiotherapy that help to increase the total tumor dose have been used, however, controvertible survival benefit was observed. Various studies have shown improved median and overall survival with chemoradiotherapy for advanced unresectable pancreatic carcinoma. The role of new agents such as topoisomerase I inhibitors also needs further clinical investigations.

  2. Metastatic paediatric colorectal carcinoma.

    LENUS (Irish Health Repository)

    Woods, R

    2012-03-01

    A 16-year-old girl presented to our unit with crampy abdominal pain, change in bowel habit, a subjective impression of weight loss and a single episode of haematochezia. She was found to have a rectosigmoid adenocarcinoma and proceeded to laparoscopic anterior resection, whereupon peritoneal metastases were discovered. She received chemotherapy and is alive and well ten month later with no radiological evidence of disease. Colorectal carcinoma is rare in the paediatric population but is increasing in incidence. Early diagnosis is critical to enable optimal outcomes.

  3. Penis squamous cell carcinoma

    Directory of Open Access Journals (Sweden)

    Leonor Hernández Piñero

    2015-09-01

    Full Text Available Cancer has become a first order health problem worldwide, despite the great diagnostic and therapeutic programs achieved during the last years. This is a clinical case of an 81- year-old patient with personal and social history of promiscuous and unprotected sexual behavior that shows a vegetative lesion in his gland and numerous inguinal adenopathies. Biopsy confirms the diagnosis of squamous cell carcinoma infiltrating the penis, which is a relatively rare pathology which is generally diagnosed belatedly. Partial amputation of the penis was considered to be performed, but there was no consent on behalf of his family. The patient’s general condition was getting worse until he died.

  4. Squamous cell carcinoma.

    Science.gov (United States)

    Webb, Julie L; Burns, Rachel E; Brown, Holly M; LeRoy, Bruce E; Kosarek, Carrie E

    2009-03-01

    Squamous cell carcinoma (SCC) is a relatively common, malignant neoplasm of dogs and cats that can arise in a variety of locations. The gross appearance of SCC can be variable and nonspecific, so definitive diagnosis requires microscopic examination of the tissue (cytology or histology). Several treatment modalities exist, but surgical excision, if possible, is regarded as the best treatment option. Early diagnosis and treatment of SCC are key because small, early-stage tumors are the most amenable to treatment and carry the best prognosis.

  5. Hepaticportalvenousgasinpancreaticsolitary metastasisfromanesophagealsquamouscell carcinoma

    Institute of Scientific and Technical Information of China (English)

    Takeshi Sawada; Yasushi Adachi; Manabu Noda; Kimishige Akino; Takefumi Kikuchi; Hiroaki Mita; Yoshifumi Ishii and Takao Endo

    2013-01-01

    BACKGROUND: Hepatic portal venous gas (HPVG) is a rare entity commonly associated with intestinal necrosis and fatal outcome, and various underlying diseases have been reported. Pancreatic solitary metastasis without local extension is also rare in esophageal squamous cell carcinoma. METHODS: This report describes an interesting and unusual case of HPVG arising from pancreatic tumor. Autopsy revealed pathogenesis  of  HPVG  and  synchronous  tumors  of  the esophagus and pancreas. RESULTS: A 73-year-old man developed synchronous double tumor in the esophagus and pancreas several months before acute  abdomen  and  his  death,  which  were  generated  by HPVG. Autopsy revealed that HPVG was caused by gastric wall infarction owing to expansion of an isolated pancreatic metastasis from esophageal squamous cell carcinoma. CONCLUSIONS: This is the ifrst case of HPVG that was derived from pancreatic tumor inifltration. If he had been diagnosed with solitary pancreatic metastasis from esophageal squamous cell carcinoma in the ifrst time, he might have an option for chemotherapy, which could let him live longer.

  6. Etiopathogenesis of Differentiated Thyroid Carcinomas

    Directory of Open Access Journals (Sweden)

    Tanja Makazlieva

    2016-08-01

    Full Text Available INTRODUCTION: Thyroid malignomas are a heterogeneous group of neoplasm consisting of most frequent differentiated encountered carcinomas, papillary and follicular thyroid carcinoma, then medullary thyroid carcinoma originating from neuroendocrine calcitonin-producing C-cells and rare forms of thyroid lymphomas arising from intrathyroidal lymphatic tissue, thyroid sarcomas and poorly differentiated anaplastic thyroid carcinoma. There are increasing numbers of epidemiological studies and publications that have suggested increased incidence rate of thyroid carcinomas. We have read, analysed and compare available reviews and original articles investigating different etiological factors in the development of thyroid carcinomas through Google Scholar and PubMed Database. DISCUSSION: Aetiology involved in the development of thyroid carcinomas is multifactorial and includes external influences, as well as constitutional predispositions and genetic etiological factors. The actual effect of environmental and constitutional factors is on promoting genetic and epigenetic alterations which result in cell proliferation and oncogenesis. Until now are identified numerous genetic alterations, assumed to have an important role in oncogenesis, with MAPK and PI3K-AKT as crucial signalling networks regulating growth, proliferation, differentiation and cell survival/apoptosis. CONCLUSION: This new molecular insight could have a crucial impact on diagnosis and also on improving and selecting an appropriate treatment to the patients with thyroid malignancies.

  7. Vitronectin in human breast carcinomas

    DEFF Research Database (Denmark)

    Aaboe, Mads; Offersen, Birgitte Vrou; Christensen, Anni;

    2003-01-01

    We have analysed the occurrence of the extracellular glycoprotein vitronectin in carcinomas and normal tissue of human breast. Immunohistochemical analysis of carcinomas revealed a strong vitronectin accumulation in extracellular matrix (ECM) around some cancer cell clusters and in the subendothe......We have analysed the occurrence of the extracellular glycoprotein vitronectin in carcinomas and normal tissue of human breast. Immunohistochemical analysis of carcinomas revealed a strong vitronectin accumulation in extracellular matrix (ECM) around some cancer cell clusters...... and in the subendothelial area of some blood vessels. In normal tissue, vitronectin had a homogeneous periductal occurrence, with local accumulation much lower than that in the carcinomas. Using a new solid phase radioligand assay, the vitronectin concentrations of extracts of carcinomas and normal breast tissue were...... determined and found to be indistinguishable. Comparison of the vitronectin and the hemoglobin concentrations of the extracts showed that their vitronectin content was not derived from blood contamination. Vitronectin mRNA was undetectable in both carcinomas and normal tissue. We conclude that vitronectin...

  8. [Oral squamous cell carcinoma and lichen planus vs. lichenoid lesions. Case report].

    Science.gov (United States)

    Esquivel-Pedraza, Lilly; Fernández-Cuevas, Laura; Ruelas-Villavicencio, Ana Lilia; Guerrero-Ramos, Brenda; Hernández-Salazar, Amparo; Milke-García, María Pilar; Méndez-Flores, Silvia

    2016-01-01

    Introducción: el desarrollo de carcinoma escamocelular a partir del liquen plano bucal es controversial. Describimos un caso con carcinoma escamocelular intrabucal, que cursa con lesiones de liquen plano bucal y se analizan las dificultades para distinguir los cambios incipientes del carcinoma escamocelular de las lesiones por liquen plano intrabucales que lleven a establecer un diagnóstico certero de ambas entidades. Caso clínico: hombre de 57 años, con antecedente de tabaquismo y hábito alcohólico crónico, que presenta lesión tumoral ulcerada en borde lateral izquierdo de lengua y placas blancas reticulares bilaterales en mucosa yugal, bordes laterales y vientre de lengua. El reporte histopatológico fue de carcinoma escamocelular invasor moderadamente diferenciado y liquen plano respectivamente. Conclusiones: la naturaleza premaligna del liquen plano bucal es controvertida, esto por inconsistencia en los criterios diagnóstico clínicos e histológicos que permitan diferenciar los casos de liquen plano bucal de otras lesiones como las reacciones liquenoides o displasias intraepiteliales con alto potencial de malignización. Posiblemente las reacciones liquenoides bucales tienen un mayor riesgo de transformación maligna al compararse con el clásico liquen plano bucal.

  9. Culturas del Mundo

    DEFF Research Database (Denmark)

    Benwell, Ann Fenger; Costa, Alberto; Waehle, Espen

    2006-01-01

    ’Culturas del mundo. Colecciones del Museo Nacional de Dinamarca’ with Ann Fenger Benwell in Culturas del Mundo. Colecciones del Museo Nacional de Dinamarca, ed. Silvia Sauquet, Fundación "la Caixa", Barcelona 2006, pp. 31-39......’Culturas del mundo. Colecciones del Museo Nacional de Dinamarca’ with Ann Fenger Benwell in Culturas del Mundo. Colecciones del Museo Nacional de Dinamarca, ed. Silvia Sauquet, Fundación "la Caixa", Barcelona 2006, pp. 31-39...

  10. Osteotomía de avance del marco orbitario para el tratamiento del exoftalmos endocrino severo Advancement osteotomy of the orbital rim for the treatment of severe endocrine exophthalmos

    Directory of Open Access Journals (Sweden)

    F. Almeida

    2005-04-01

    Full Text Available La orbitopatía tiroidea es una enfermedad debilitante del sistema visual caracterizada por presentar cambios en los tejidos blandos orbitarios y periorbitarios debidos a un proceso inflamatorio, o a la consecuencia del mismo, y que se relaciona con alteraciones sistémicas de la glándula tiroides. Aparte de las alteraciones estéticas que ocasiona, los pacientes pueden presentar queratitis de repetición por exposición, diplopia, dolor retrobulbar, compresión del nervio óptico e incluso ceguera. La cirugía constituye el tratamiento definitivo del exoftalmos en la orbitopatía de Graves, mejorando la proptosis y la visión, así como diminuyendo la sintomatología ocular, con una morbilidad mínima. Presentamos un caso de exoftalmos severo que fue intervenido mediante osteotomía y avance del marco orbitario superior, lateral e inferior, remoción parcial de dos paredes orbitarias y lipectomía. Los resultados estéticos y el alivio de la sintomatología ocular resultaron satisfactorios.Thyroid-associated orbitopathy is a debilitating disease of the visual system that is characterized by changes in the softtissues of the orbit and periorbita as a result of an inflammatory process, or as a consequence of this, and related to systemic disorders of the thyroid gland. Apart from the aesthetic changes that arise, patients may also present persistent keratitis due to exposure, diplopia, retrobulbar pain, compression of the optic nerve and even blindness. Surgery represents the definitive treatment for exophthalmos in Graves’ orbitopathy as improvements are shown in proptosis and vision. A decrease is also experienced in ocular symptomatology and there is minimal morbidity. We present the case of severe exophthalmos that was surgically operated on with an advancement osteotomy of the supero-, lateral- and infraorbital rim, with partial removal of two of the orbital walls with lipectomy. The aesthetic results and the relief of the ocular symptoms

  11. Carcinoma de células escamosas de cavidad bucal en un centro de tercer nivel de atención social en la ciudad de México: Experiencia de cinco años Oral cavity squamous cells carcinoma, 5 years experience in a third level social assistence center, in Mexico city

    OpenAIRE

    G. Meza García; J.J. Muñoz Ibarra; C. Páez Valencia; B. Cruz Legorreta; B. Aldape Barrios

    2009-01-01

    El carcinoma epidermoide o de células escamosas, es una neoplasia maligna que se origina de las células escamosas del epitelio que recubre la mucosa, es la más frecuente de la cavidad bucal. Objetivo: determinar si la supervivencia y muerte de los pacientes con carcinoma epidermoide de cavidad bucal, asociada a la edad, género, factores de riesgo, grado histológico y tratamiento recibido. Método: Se revisaron los archivos del servicio de Anatomía Patológica del Centro Médico Nacional "20 de N...

  12. Carcinoma triquilemal: relato de caso Trichilemmal carcinoma: case report

    Directory of Open Access Journals (Sweden)

    Miguel Roismann

    2011-10-01

    Full Text Available O carcinoma triquilemal é um tumor raro, que ocorre, geralmente, na pele exposta ao sol, principalmente face, couro cabeludo, pescoço e dorso das mãos, em indivíduos idosos, entre a 4ª e 9ª décadas de vida, sem predilação por sexo. O presente estudo mostra um caso de carcinoma triquilemal, recidivado, de difícil tratamento, em mesma topografia de um carcinoma basocelular tratado previamente com cirurgia e radioterapia.The trichilemmal carcinoma is a rare tumor that usually occurs on sun-exposed skin, especially on the face, scalp, neck and back of hands, mainly in elderly subjects but commonly between the 4th and 9th decades of life. It is not a gender-based illness. This study shows a difficult to treat case of recurrent trichilemmal carcinoma on the same location of a basal-cell carcinoma previously treated with surgery and radiotherapy.

  13. Carcinoma epidermoide de pene en un varón adulto

    OpenAIRE

    Morales Luna, D.; Manrique Chávez, Manuel; Weilg, P.

    2014-01-01

    El carcinoma primario de pene es una neoplasia poco frecuente. En este trabajo presentamos un caso de carcinoma epidermoide de pene en un varón de 52 años de inicio en el cuerpo peneano. La enfermedad mostró una rápida progresión comprometiendo la totalidad del pene en 6 meses por lo que se realizó una penectomía radical. El diagnóstico se confirmó mediante el estudio histopatologico. Comentamos la historia de la enfermedad haciendo énfasis en su corta evolución, las características ...

  14. Desarrollo de modelos murinos con líneas celulares de carcinomas nasosinusales

    OpenAIRE

    Costales Marcos, María

    2012-01-01

    Los tumores malignos originados en las fosas nasales (FN) y senos paranasales (SP) tienen características propias que los diferencian del resto de neoplasias de la vía aerodigestiva superior (VAS). Su baja incidencia y alta diversidad histológica son un obstáculo para su estudio. Los tipos histopatológicos más frecuentes son los carcinomas, entre los que destacan los adenocarcinomas nasosinusales (ACNS), concretamente la variedad tipo intestinal (ITAC), y los carcinomas escamosos nasosinusale...

  15. Hepatocellular Carcinoma (HCC)

    Science.gov (United States)

    Helmberger, Thomas K.

    Hepatocellular carcinoma (HCC) is considered to be one of the most common malignancies worldwide, and the most common one in Africa and Asia. Over the last decade, a rising incidence of up to 10-15/100,000 per population has been seen in the Western world, with an estimate of 250,000 deaths and more than a million worldwide per year. By the year 2010, the World Health Organization expects that HCC will be the leading cause of cancer mortality surpassing lung cancer. This increasing incidence is most likely related to an increasing prevalence of chronic hepatitis C (HC) and B (HB) virus infections and other diseases inducing chronic inflammation (Befeler and Di Bisceglie 2002; Llovet et al. 2003).

  16. Carcinoma of the hypopharynx.

    Science.gov (United States)

    Gourin, Christine G; Terris, David J

    2004-01-01

    Despite advances in surgical and nonsurgical treatment, overall survival rates for patients who have hypopharyngeal carcinoma have not improved,and this disease still has a poor prognosis. The best results are obtained with multimodality therapy. but at best, two thirds of patients are palliated rather than cured of disease. Radical surgery with postoperative radiation therapy remains the standard of care. Organ preservation strategies have not been as successful in hypopharyngeal cancer as for cancers of other head and neck sites. Chemoradiation is an effective alternative method of aggressive treatment but may be associated with significant dysfunction of the end organ when preservation is possible. Because of poor long-term survival rates, local control remains the most important factor in planning treatment, to provide meaningful palliation and best possible quality of life.

  17. Salivary duct carcinoma

    DEFF Research Database (Denmark)

    Breinholt, Helle; Elhakim, Mohammad Talal; Godballe, Christian;

    2016-01-01

    1990 to 2005 were identified. Histological slides were reviewed, and data concerning demographics, tumour site, clinical stage, treatment profiles and follow-up were retrieved. Survival estimates and prognostic factors were evaluated by comparing Kaplan-Meier plots using the Mantel-Haenszel log......-rank test. RESULTS: Salivary duct carcinoma showed an incidence of 0.04/100.000 inhabitants/year. Distant recurrence was seen in 52% of patients. Five-year overall survival, disease-specific survival and recurrence-free survival were 32%, 42% and 35%, respectively. Univariate analyses suggested that overall...... stage (III/IV) and vascular invasion have a negative impact on all survival measures. Involved resection margins correlated with a poorer overall survival and disease-specific survival, whereas adjuvant radiotherapy improved overall survival and recurrence-free survival. CONCLUSIONS: Salivary duct...

  18. Genetics of hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    Andreas Teufel; Frank Staib; Stephan Kanzler; Arndt Weinmann; Henning Schulze-Bergkamen; Peter R Galle

    2007-01-01

    The completely assembled human genome has made it possible for modern medicine to step into an era rich in genetic information and high-throughput genomic analysis. These novel and readily available genetic resources and analytical tools may be the key to unravel the molecular basis of hepatocellular carcinoma (HCC). Moreover, since an efficient treatment for this disease is lacking, further understanding of the genetic background of HCC will be crucial in order to develop new therapies aimed at selected targets. We report on the current status and recent developments in HCC genetics. Special emphasis is given to the genetics and regulation of major signalling pathways involved in HCC such as p53, Wntsignalling, TGFβ, Ras, and Rb pathways. Furthermore, we describe the influence of chromosomal aberrations as well as of DNA methylation. Finally, we report on the rapidly developing field of genomic expression profiling in HCC, mainly by microarray analysis.

  19. Surgery and Hepatocellular Carcinoma

    Science.gov (United States)

    Akamatsu, Nobuhisa; Cillo, Umberto; Cucchetti, Alessandro; Donadon, Matteo; Pinna, Antonio Daniele; Torzilli, Guido; Kokudo, Norihiro

    2016-01-01

    The optimal surgical strategy for hepatocellular carcinoma (HCC) is under active debate. Bio-markers of the liver functional reserve as well as volumetric analysis of the future liver remnant are essential for safe liver resection of HCC. The present algorithms applied to surgical strategies for HCC are not ideal because many patients who could potentially undergo safe resection are deemed liver transplant candidates in Western countries, whereas the opposite is the case in Eastern countries. In addition, there is too much focus on expanded criteria for patients with HCC to undergo liver transplantation. The transplantation benefit for patients with HCC should be considered based not only on the individual's benefit, but also on the effect of other patients waiting for LT for other indications. PMID:27995087

  20. Salivary gland myoepithelial carcinoma.

    Science.gov (United States)

    Vilar-González, S; Bradley, K; Rico-Pérez, J; Vogiatzis, P; Golka, D; Nigam, A; Sivaramalingam, M; Kazmi, S

    2015-11-01

    Salivary gland myoepithelial carcinoma (MC) or malignant myoepithelioma is a rare entity. MC usually presents as a slow-growing painless mass arising in the parotid gland, but may involve other salivary glands. This tumour may be particularly locally aggressive, but its clinical and biological features are not yet fully understood. MC may arise from pre-existing benign lesions, such as pleomorphic adenomas or benign myoepitheliomas, or may arise de novo. It usually affects patients over 50 years old, with no gender preference. Because it is often asymptomatic, the presentation and diagnosis can be delayed by months, even years. The current WHO classification considers MC to be an intermediate- to high-grade malignancy. Other published data suggest it is likely to be a high-grade neoplasm, consistent with its aggressive behaviour. Its epidemiology, histopathological features, immunohistochemical profile, clinical behaviour and optimal management are not well understood. Following review of the current literature we aim to address these.

  1. Merkel cell carcinoma: case report.

    Science.gov (United States)

    Sustić, Nela; Biljan, Darko; Orkić, Zelimir; Lizatović, Dario; Milas-Ahić, Jasminka

    2010-04-01

    Merkel cell carcinoma (MCC) is a rare, aggressive neuroendocrine carcinoma of the skin. Although it is 40 times less common than malignant melanoma, its mortality is much higher compared to melanoma. From 1986 to 2001 there was rapidly increasing incidence in reported cases of MCC, with a tripling in the rate over this 15-year period. The vast majority of MCC presents on sun-exposed skin. The head and neck area is the most common site of tumor occurrence. We present 70-year old female patient with painless red-colored nodule, size 2 x 2 x 2 cm on the dorsal side of mid left forearm. The surgical excision with negative margins was performed, and pathohistological analysis confirmed Merkel cell carcinoma. Sentinel lymph node biopsy was negative. In conclusion, as MCC is a very aggressive rare skin carcinoma with lethal outcome, it should be mandatory to perform biopsies of any suspected skin lesion.

  2. Cutaneous metastases of hepatocellular carcinoma.

    Science.gov (United States)

    Lazaro, M; Serrano, M L; Allende, I; Ratón, J A; Acebo, E; Diaz-Perez, J L

    2009-12-01

    Cutaneous metastases are an unusual finding that may present as the first sign of an internal neoplasia. A case of cutaneous metastases of hepatocellular carcinoma, which may often involve other organs but very rarely metastases to the skin, is reported.

  3. PET imaging in differentiated thyroid cancer: where does it fit and how do we use it?; Imagem por PET no cancer diferenciado de tiroide: onde ele se encaixa e como usa-lo?

    Energy Technology Data Exchange (ETDEWEB)

    Hall, Nathan C. [The Ohio State University, Columbus, OH (United States). Div. of Nuclear Medicine; Kloos, Richard T. [The Ohio State University, Columbus, OH (United States). Diabetes and Metabolism and Nuclear Medicine]. E-mail: richard.kloos@osumc.edu

    2007-07-15

    Positron emission tomography (PET) is a rapidly evolving imaging modality that has gained widespread acceptance in oncology, with several radionuclides applicable to thyroid cancer. Thyroid cancer patients have been studied most commonly using {sup 18}F-Fluorodeoxyglucose (FDG)-PET, with perhaps the greatest utility being the potential localization of tumor in differentiated thyroid cancer (DTC) patients who are radioiodine whole body scan (WBS) negative and thyroglobulin (Tg) positive. Also of value is the identification of patients unlikely to benefit from additional {sup 131}I therapy and identification of patients at highest risk of disease-specific mortality, which may prompt more aggressive therapy or enrollment in clinical trials. Emerging data suggest that PET/CT fusion studies provide increased accuracy and modify the treatment plan in a significant number of DTC cases when compared to PET images alone. However, studies documenting improvements in survival and tumor recurrence attributable to FDG-PET imaging in thyroid cancer patients are lacking. Specific case examples of thyroid cancer patients who appear to have benefited from FDG-PET imaging do exist, while less data are available in the setting of anaplastic or medullary thyroid carcinoma. This article reviews the utility and limitations of FDG-PET in DTC management, and offers practical recommendations. (author)

  4. [Bronchial mucoepidermoid carcinoma].

    Science.gov (United States)

    Bregante, J I; Rituerto, B; Font de Mora, F; Alonso, F; Andreu, M J; Figuerola, J; Mulet, J F

    1998-07-01

    We submit the case of a child afflicted with a mucoepidermoid bronchial tumor. The patient is a boy, aged seven, who after undergoing antibiotic treatment for six weeks because of a fever and atelectasia-condensation in the right lower lobe showed no signs of clinical improvement and was sent to our department to undergo further study and treatment. A bronchoscopy performed shows a polypoid mass that partially blocks the main bronchial tube a few milimiters under the access to the right upper lobe. A biopsy is carried out and the anatomopathological test shows there is a low degree epidermoid carcinoma. We decide to perform a lobectomy which for the tumor location and the lung condition has to be medium and lower right. We proceed to remove the adenopaty of hilium not affected by the tumor. The postoperative period develops without incidents. A check-up bronchoscopy performed three months later shows two polypoid masses in the right bronchial tube which, once a biopsy is performed, proved to be granulation tissue. Twelve months after undergoing surgery, the patient's condition is good, there is no evidence of tumor relapse and the breathing capacity is adequate, though there is an obstructive restrictive pattern in the espirometry. Even taking into consideration that lung tumors are extremely unusual, the epidermoid carcinoma is the one which most frequently occurs. The tumor's low malignancy is a sign that points to a good prognosis. Performing conservative surgery by means of bronchoplasty should be taken into account so as to keep the sequelae on the lung condition to a minimum, even though in this case the tumor location made it impossible.

  5. Primary myoepithelial carcinoma of palate

    Directory of Open Access Journals (Sweden)

    Yang Ya

    2011-09-01

    Full Text Available Abstract Objectives The aim of this study was to present a rare neoplasm, Primary myoepithelial carcinoma arising from the palate, and to review its diagnostic criteria, pathologic and clinical characteristics, treatment options and prognosis. Clinical Presentation and Intervention Myoepitheliomas are tumors arising from myoepithelial cells mainly or exclusively. Myoepitheliomas mostly occur in salivary glands, as well as in breast, skin, and lung. Case of myoepitheliomas in palate has rarely been reported. Myoepithelial carcinoma is malignant counterpart of myoepitheliomas. Adenomyoepithelioma is also a different disease from myoepitheliaomas. Immunohistochemically, tumor cells of myoepithelial carcinoma express not only epithelial markers such as cytokeratin, epithelial membrane antigen (EMA, but also markers of smooth muscle origin such as calponin. The immunohistochemical criteria of myoepithelial differentiation are double positive for both cytokeratins and one or more myoepithelial immunomarkers (i.e., S-100 protein, calponin, p63, GFAP, maspin, and actins. Myoepithelial carcinomas of salivary and breast demonstrate copy number gains and gene deletion. The overall prognosis of myoepithelial carcinoma is poor. There is rarely recurrence or metastasis in benign myoepithelial tumors. Complete excision with tumor-free margin is always the preferred treatment, while local radiation therapy and chemotherapy are suggestive treatment options. Here, a rare case of myoepithelial carcinoma arising from the palate has been described and discussed for the treatment and outcome. Pathological and clinical characters of myoepitheliomas are also compared and discussed. Conclusion The case report serves to increase awareness and improve the index of diagnosis and treatment of myoepitheliomas.

  6. Clinical Observation on Thyroid Carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Park, Seon Yang; Shin, Yong Tae; Cho, Bo Yun; Kim, Byung Kuk; Koh, Chang Soon; Lee, Mun Ho [Seoul National University College of Medicine, Seoul (Korea, Republic of)

    1978-09-15

    Clinical features of 147 patients with biopsy-proven thyroid carcinomas were investigated from January, 1972 to April, 1978 at the Seoul National University Hospital with the following results. 1) The incidence of thyroid carcinomas according to their histopathological classification revealed 76.2% of papillary carcinoma, 19.0% of follicular carcinoma, and 3 cases of occult sclerozing carcinoma, 1 case of giant cell carcinoma and 1 case of metastatic melanoma. 2) The ratio of male to female patients was 1:8.3 and showed no difference between papillary and follicular carcinomas. 3) The age distribution showed the peak incidence in the fourth decade (29.3%) followed by the fifth and sixth decades. 4) The average duration of illness from the onset of symptoms was about 5 years while it was 4.4 years and 7.6 years in the papillary and follicular carcinomas respectively. 5) The diameter of the thyroid masses was smaller than 5 cm in 53.6% of the patients, from 5 cm to 10 cm in 40.0% and larger than 10 cm in 6.4%. 6) In 36.4% of the patients with thyroid carcinomas the thyroid masses were fixed to adjacent tissues. 7) Metastasis to the regional lymph nodes was noted in 40.0% of the total cases, and in 45.2% and 17.6% of the papillary and follicular carcinomas respectively, while the lung and bone metastases were found in 10.0% and 4.4% in each type respectively. 8) 88.9% of the patients showed cold areas in the thyroid scans using {sup 131}I. 9) Typical psammoma bodies were observed in 21.3% of the cases in the microscopic examination of the pathological specimens. 10) The initial diagnosis of thyroid malignancy could be made before histological confirmation in 64.5% of the patients. 11) The clinical staging slightly modified from Schulz method revealed 43.6% of the patients in stage I, 26.4% in stage II, 20.9% in stage III and 9.1% in stage IV. 12) The association with Hashimoto's thyroiditis was noted in 4 cases, with nodular goiter in 3 cases, and with follicular

  7. del Norte

    Directory of Open Access Journals (Sweden)

    Heydi Robles

    2005-01-01

    Full Text Available Este artículo muestra los resultados de una investigación sobre la ansiedad causada por el aprendizaje de idiomas. Está centrado en la ansiedad relacionada con la habilidad de producción oral. El objetivo del estudio era identificar los factores externos que producen ansiedad en el desarrollo de la competencia oral en un grupo de estudiantes de Psicología. Para lograr su objetivo, la investigación utilizó diarios, cuestionarios, grabaciones (opiniones personales, presentaciones orales breves y entrevistas. Con respecto de los factores externos que producen ansiedad en relación con las actividades, los resultados muestran que todas las actividades orales producen un alto grado de ansiedades en los estudiantes, especialmente las actividades no programadas. También muestran una falta de participación en clase con un fuerte rechazo a las actividades orales. Entre las posibles causas de reticencia puede estar el hecho de que los estudiantes no quieren ser objeto de burla. Además, la habilidad de producción oral no fue estimulada en los niveles anteriores del programa de inglés. Es vital mencionar que los alumnos son conscientes de sus carencias en algunos aspectos del idioma como vocabulario, gramática y fluidez.

  8. Hepatocellular carcinoma (Letter to the editor)

    DEFF Research Database (Denmark)

    Békássy, Albert N.; Garwicz, Stanislaw; Jensen, O.A.

    1994-01-01

    Øjenpatologi, Alagill's syndrome, hepatic carcinoma, biliary atresia, histopathology, liver, child, liver cirrhosis, autopsy, eyes, AFP......Øjenpatologi, Alagill's syndrome, hepatic carcinoma, biliary atresia, histopathology, liver, child, liver cirrhosis, autopsy, eyes, AFP...

  9. Treatment Options by Stage (Adrenocortical Carcinoma)

    Science.gov (United States)

    ... Symptoms of adrenocortical carcinoma include pain in the abdomen. These and other signs and symptoms may be caused by adrenocortical carcinoma: A lump in the abdomen . Pain the abdomen or back. A feeling of ...

  10. Treatment Options for Thymoma and Thymic Carcinoma

    Science.gov (United States)

    ... Thymoma & Thymic Carcinoma Treatment Thymoma and Thymic Carcinoma Treatment (PDQ®)–Patient Version General Information About Thymoma and ... Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery ) and treatment ...

  11. Potential targets for lung squamous cell carcinoma

    Science.gov (United States)

    Researchers have identified potential therapeutic targets in lung squamous cell carcinoma, the second most common form of lung cancer. The Cancer Genome Atlas (TCGA) Research Network study comprehensively characterized the lung squamous cell carcinoma gen

  12. Insular carcinoma: a distinct de novo entity among follicular carcinomas of the thyroid gland.

    Science.gov (United States)

    Pilotti, S; Collini, P; Mariani, L; Placucci, M; Bongarzone, I; Vigneri, P; Cipriani, S; Falcetta, F; Miceli, R; Pierotti, M A; Rilke, F

    1997-12-01

    We reclassified 720 nonmedullary invasive thyroid carcinomas diagnosed and treated between 1975 and 1993. Twenty-seven cases met the criteria of insular carcinoma and 29 cases those of widely invasive follicular carcinoma. Comparison of these histotypes with respect to pathologic stage and overall, relative, and visceral metastasis-free survival showed a significant association between histotype and pT and pN categories. In particular, pT4 (p AAA transversion at codon 61 of the N-RAS gene in insular carcinoma. These findings suggest that insular carcinoma represents a de novo entity distinct from widely invasive follicular carcinoma, that widely invasive follicular carcinoma has biologic characteristics more consistent with poorly differentiated than well-differentiated carcinomas, and that both insular carcinoma and widely invasive follicular carcinoma share similar molecular alterations.

  13. Immunology of hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    Hepatocellular carcinoma (HCC) is primarily a malignancyof the liver, advancing from a damaged, cirrhoticliver to HCC. Globally, HCC is the sixth most prevalentcancer and the third-most prevalent reason for neoplasticdisease-related deaths. A diverse array ofinfiltrating immunocytes regulates the developmentand progression of HCC, as is the case in many othercancers. An understanding of the various immunecomponents during HCC becomes necessary so thatnovel therapeutic strategies can be designed to combatthe disease. A dysregulated immune system (includingchanges in the number and/or function of immunecells, cytokine levels, and the expression of inhibitoryreceptors or their ligands) plays a key role in thedevelopment of HCC. Alterations in either the innateor adaptive arm of the immune system and cross-talkbetween them make the immune system tolerant totumors, leading to disease progression. In this review,we have discussed the status and roles of variousimmune effector cells (e.g. , dendritic cells, natural killercells, macrophages, and T cells), their cytokine profile,and the chemokine-receptor axis in promoting orimpeding HCC.

  14. Spontaneous regression of metastatic Merkel cell carcinoma.

    LENUS (Irish Health Repository)

    Hassan, S J

    2010-01-01

    Merkel cell carcinoma is a rare aggressive neuroendocrine carcinoma of the skin predominantly affecting elderly Caucasians. It has a high rate of local recurrence and regional lymph node metastases. It is associated with a poor prognosis. Complete spontaneous regression of Merkel cell carcinoma has been reported but is a poorly understood phenomenon. Here we present a case of complete spontaneous regression of metastatic Merkel cell carcinoma demonstrating a markedly different pattern of events from those previously published.

  15. Akt Inhibitor MK2206 in Treating Patients With Progressive, Recurrent, or Metastatic Adenoid Cyst Carcinoma

    Science.gov (United States)

    2016-06-14

    Recurrent Oral Cavity Adenoid Cystic Carcinoma; Recurrent Salivary Gland Carcinoma; Salivary Gland Adenoid Cystic Carcinoma; Stage IVA Major Salivary Gland Carcinoma; Stage IVA Oral Cavity Adenoid Cystic Carcinoma; Stage IVB Major Salivary Gland Carcinoma; Stage IVB Oral Cavity Adenoid Cystic Carcinoma; Stage IVC Major Salivary Gland Carcinoma; Stage IVC Oral Cavity Adenoid Cystic Carcinoma

  16. GENETIC INSTABILITY IN CERVICAL CARCINOMA

    Institute of Scientific and Technical Information of China (English)

    赵旻; 伍欣星; 邱小萍; 李晖; 戴天力; 谭云

    2002-01-01

    Objective: The role of human papillomavirus (HPV) in the development of cervical carcinoma has been clearly established but other factors could be involved in cervical tumorigenesis such as loss of heterozygosity (LOH) and microsatellite instability (MI). The aim of the present study was to investigate the genetic instability in cervical carcinoma tissues and provide evidence for discoveringnew tumor suppressor genes and screening diagnostic molecular marker of cervical carcinoma. Methods: Fifty primary cervical carcinoma samples from high-incidence area were analyzed by PCR for HPV16 infection, LOH and microsatellite instability. Results: HPV16 was detected in 88% of the cases. Sixty-six percent of total cases showed LOH with no more than 3 different loci per case. The highest frequency of the allelic loss was found in D18S474 (18q21, 40.5%). MI was detected in 4 cases (8%) only. Conclusion: Different percentages of LOH on specific chromosomal regions were found and MI was very infrequent in cervical carcinoma. The putative suppressor gene(s) could be located on specific chromosome regions such as 18q, and genetic instability could be involved in cervical tumorigenesis.

  17. EBV-associated gastric carcinoma in high- and low-incidence areas for nasopharyngeal carcinoma

    DEFF Research Database (Denmark)

    Boysen, T.; Mohammadi, M.; Melbye, M.;

    2009-01-01

    BACKGROUND: Approximately 10% of gastric carcinomas are associated with Epstein-Barr virus (EBV). The Inuit in Greenland have a high incidence of EBV-associated nasopharyngeal carcinoma. METHODS: We conducted a population-based case-control study comparing gastric carcinomas in Greenland...... and in Denmark. RESULTS: The prevalence rate of EBV-associated gastric carcinomas was 8.5% in both populations. CONCLUSION: The findings of this study argue against a general susceptibility to EBV-associated carcinomas among the Inuit....

  18. Small cell undifferentiated carcinoma in the epididymis

    Institute of Scientific and Technical Information of China (English)

    CHEN Jia-wei; YUAN Lin; Hu Hong-hui

    2005-01-01

    @@ Small cell undifferentiated carcinoma is a special type of tumor which is usually found in the lungs. However, it is very rare in extra pulmonary tissues, especially in epididymis. One case of small cell undifferentiated carcinoma in the right epididymis, with partial differentiation to adenocarcinoma and neuroendocrine carcinoma is reported as follows.

  19. [The Dutch guideline 'Renal cell carcinoma'].

    NARCIS (Netherlands)

    Osanto, S.; Bex, A.; Hulsbergen- van de Kaa, C.A.; Soetekouw, P.M.M.B.; Stemkens, D.

    2012-01-01

    The Dutch guideline 'Renal Cell Carcinoma' has been revised on the basis of new literature. With the assistance of the Netherlands Cancer Registry an assessment was made of the current care for patients with renal cell carcinoma. Renal cell carcinoma is a type of cancer for which knowledge of the ge

  20. Carcinoma insospechado de la vesícula biliar.

    Directory of Open Access Journals (Sweden)

    Armando Cortés

    2009-11-01

    Full Text Available Introducción. El carcinoma de la vesícula es una malignidad poco frecuente en Colombia. Este artículo pretende establecer la proporción global de carcinoma de la vesícula y el carcinoma de la vesícula insospechado e identificar características comunes en este grupo particular de pacientes. Materiales y métodos. Se evaluaron retrospectivamente todas las colecistectomías consecutivas realizados en la Fundación Hospital San José de Buga durante dos años. Resultados. De las 376 colecistectomías realizados en este hospital durante los dos últimos años, el carcinoma de la vesícula se diagnosticó en seis pacientes; sólo en uno de ellos fue sospechado antes de la cirugía. De acuerdo con la literatura la ocurrencia en mujeres (83.3% es más alta que en hombres (16.7%. La edad promedio es 58.5 años (rango 41-71; el síntoma más común es el dolor abdominal; la mayoría (66.7% tenía colelitiasis y los informes patológicos confirman el diagnóstico de adenocarcinoma en todos los 6 pacientes. Conclusión. La incidencia global de carcinoma insospechado de la vesícula en la presente serie es de 1.6%. No existió alguna característica común para este grupo de pacientes cuando se comparó con las personas con patología no-maligna. El carcinoma de la vesícula biliar puede pasar desapercibido al examen macroscópico del especímen quirúrgico tanto por el médico como por el radiólogo, el cirujano y el patólogo.

  1. Monitoring intervals for measurement of the radionuclides {sup 125} I and {sup 129I} in thyroid glands; Intervalos de monitoreo, para la medicion en la glandula tiroides de los radionucleidos {sup 125}I y {sup 1} {sup 29}I

    Energy Technology Data Exchange (ETDEWEB)

    Simanca, Yoan Yera; Bejerano, Gladys M. Lopez, E-mail: yoan@cphr.edu.cu, E-mail: gladys@cphr.edu.cu [Centro de Proteccion e Higiene de las Radiaciones (CPHR), Cuidad de la Habana (Cuba)

    2013-07-01

    This work shows the monitoring interval, which can be implemented in the Laboratorio de Contaminacion Interna del Centro de Proteccion e Higiene de las Radiaciones, for direct measurement in the thyroid gland of radionuclides {sup 125}I and {sup 129}I . Were used two measuring systems, one employing a scintillating detector and the other detector Phoswich. Both detectors were placed inside a depth camera, 2.5 x 2.5 x 2.5m of dimension covered with 15 cm of steel, 3 mm lead, 1.8 mm tin and 1.5 mm of copper. Was calculated for each system, the minimum detectable activity, and based on this, the monitoring interval is determined. Was obtained, for {sup 125}, all tested intervals, 120, 90,60,30 , 14, and 7 days may be implemented with both systems. In the case of the radionuclide {sup 129} I, with the installation of scintillating detector can only be implemented the intervals 120, 90, and 60 days , and for installation with Phoswich, all evaluated.

  2. Del Derecho laboral al Derecho del trabajo

    OpenAIRE

    Jaramillo Jassir, Ivan Daniel

    2011-01-01

    El Derecho Laboral hijo de la revolución industrial, calificado como el acontecimiento jurídico del siglo XX, reduce su ámbito de estudio al trabajo subordinado. Los cambios del sistema de producción superan la centralidad del contrato de trabajo subordinado a tiempo indeterminado, situación que demanda ampliación del ámbito de aplicación subjetivo y objetivo de la materia, dando paso al Derecho del Trabajo que se ocupa del trabajo en todas sus modalidades como fuente de ingreso para satisfac...

  3. Sorafenib in renal cell carcinoma.

    Science.gov (United States)

    Davoudi, Ehsan Taghizadeh; bin-Noordin, Mohamed Ibrahim; Javar, Hamid Akbari; Kadivar, Ali; Sabeti, Bahare

    2014-01-01

    Cancer is among most important causes of death in recent decades. Whoever the renal cell carcinoma incidence is low but it seems it is more complicated than the other cancers in terms of pathophysiology and treatments. The purpose of this work is to provide an overview and also deeper insight to renal cell carcinoma and the steps which have been taken to reach more specific treatment and target therapy, in this type of cancer by developing most effective agents such as Sorafenib. To achieve this goal hundreds of research paper and published work has been overviewed and due to limitation of space in a paper just focus in most important points on renal cell carcinoma, treatment of RCC and clinical development of Sorafenib. The information presented this paper shows the advanced of human knowledge to provide more efficient drug in treatment of some complicated cancer such as RCC in promising much better future to fight killing disease.

  4. Basosquamous carcinoma: appearance and reality

    Science.gov (United States)

    Anand, Rakesh L.; Collins, Damian; Chapman, Anna

    2017-01-01

    Basosquamous carcinoma (BsC) is a controversial entity and both a diagnostic and therapeutic challenge. BsC has mixed histopathological characteristics of both basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). BCC and SCC display characteristic histopathology and behaviour; on the other hand, BsC is a rare tumour, which has variable morphology and displays less predictable behaviour. An early diagnosis of BsC is important due to the particularly aggressive nature of the tumour, the increased likelihood of recurrence and the potential for metastasis. Here, we present a case of BsC presenting as an extensive ulcer on the back. The case highlights the aggressive nature of the tumour and variation in appearance. It is important for all clinicians to be aware of this diagnosis so that the urgency of adequate biopsy in specialist clinics is not underestimated. PMID:28058108

  5. Genetic heterogeneity of hepatocellular carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Unsal, H.; Isselbacher, K.J. (Massachusetts General Hospital Cancer Center, Charlestown, MA (United States)); Yakicier, C.; Marcais, C.; Ozturk, M. (Institut National de la Sante et de la Recherche Medicale, Lyon (France)); Kew, M. (Univ. of Witwatersrand, Johannesburg (South Africa)); Volkmann, M. (Univ. of Heidelberg (Germany)); Zentgraf, H. (Deutsches Krebsforschungszentrum, Heidelberg (Germany))

    1994-01-18

    The authors studied 80 hepatocellular carcinomas from three continents for p53 gene (TP53) mutations and hepatitis B virus (HBV) sequences. p53 mutations were frequent in tumors from Mozambique but not in tumors from South Africa, China, and Germany. Independent of geographic origin, most tumors were positive for HBV sequences. X gene coding sequences of HBV were detected in 78% of tumors, whereas viral sequences in the surface antigen- and core antigen-encoding regions were present in less than 35% of tumors. These observations indicate that hepatocellular carcinomas are genetically heterogeneous. Mozambican-types of hepatocellular carcinomas are characterized by a high incidence of p53 mutations related to aflatoxins. In other tumors, the rarity of p53 mutations combined with the frequent presence of viral X gene coding sequences suggests a possible interference of HBV with the wild-type p53 function.

  6. Treatment of thyroid follicular carcinoma.

    Science.gov (United States)

    Ríos, Antonio; Rodríguez, José M; Parrilla, Pascual

    2015-12-01

    Differentiated thyroid carcinoma includes 2 different tumor types, papillary (PC) and follicular carcinoma (FC), and although similar, their prognosis is different. FC is uncommon, and this has led to it often being analyzed together with PC, and therefore the true reality of this tumor is difficult to know. As a result, the diagnostic and therapeutic management and the prognostic factors in differentiated carcinoma are more predictive of PC than FC. In this review we analyze the current state of many of the therapeutic aspects of this pathology. The best surgical technique and the usefulness of associated lymphadenectomy is also analyzed. Regarding post-surgical ablation with 131I, the indications, doses and usefulness are discussed. For the remaining therapies we analyze the few indications for radiotherapy and chemotherapy, and of new drugs such as tyrosine kinase inhibitors.

  7. Thyroid differentiated carcinomas survey

    Energy Technology Data Exchange (ETDEWEB)

    Speich, P.V.; Couturier, M.; Mollet, E.; Bidet, R. (C.H.U., Besancon (France))

    1982-01-01

    We have adopted for the follow up of the differentiated thyroid carcinomas in adult cases, a protocol of control which is at the same time strict and not very constraining for the patient and which is based on two types of investigations. Most of your patients have been, at first, submitted for a total thyroidectomy which is followed with one or many therapeutic doses of 3700 MBq (100 mCi) of 131-Iodine and that to destroy thewhole of the thyroid tissue. The patients are then reexamined every six months and are submitted for a T4 opotherapeutic treatment the balance of a general check-up which includes a delicate clinic control, radiologic exam and biological exam, a general control of thyroid hormones, of the T.S.H. and the thyroglobulin and the antithyroglobulin antibodies. In case of any doubt, the balance sheet must be stopped and the patient which is suspected of having Iodine desaturation is submitted for a new general clinic and biologic check-up, which is accompanied with a total scanning after oral administration of 185 mBq (5 mCi) 131-Iodine. If this general check-up shows any active nodul, another therapeutic decision is taken which is often based on an new carcinologic dose of 131-Iodine. This treatment is always followed with a post therapeutic scanning 2 and 5 days later and than another new general check-up three months later to judge the efficiency of the treatment, and during this time the patient is compensed with a LT3.

  8. Primary orbital squamous cell carcinoma

    Directory of Open Access Journals (Sweden)

    Ana L. Campos Arbulú

    2017-02-01

    Full Text Available Primary orbital squamous cell carcinoma is a rare entity. There is little published literature. We report a case of primary squamous cell carcinoma of the orbital soft tissues. Surgical resection offered the best treatment for the patient. Complete resection of the lesion was achieved. The patient received adjuvant radiotherapy due to the proximity of the lesion to the surgical margins. Surgical treatment is feasible and should be considered as part of the surgeon's arsenal. However, therapeutic decisions must be made on a case-by-case basis

  9. Medullary carcinoma of the colon

    DEFF Research Database (Denmark)

    Fiehn, Anne-Marie Kanstrup; Grauslund, Morten; Glenthøj, Anders

    2015-01-01

    Medullary carcinoma of the colon is a rare variant of colorectal cancer claimed to have a more favorable prognosis than conventional adenocarcinomas. The histopathologic appearance may be difficult to distinguish from poorly differentiated adenocarcinoma. The study aimed to evaluate the diagnostic...... differences in CK20 (p = 0.005) expression and in the rate of BRAF mutations (p = 0.0035). In conclusion, medullary carcinomas of the colon are difficult to discriminate from poorly differentiated adenocarcinoma even with the help of immunohistochemical and molecular analyses. This raises the question whether...

  10. Papillary thyroid carcinoma in children and adolescents.

    Science.gov (United States)

    Chung, Bo Mi; Park, Sung Hee; Kim, Soo Jin; Seo, Jae Seung; Kim, Yang Soo; Shim, Hyung Jin; Lee, Jong Beum

    2014-09-01

    Differentiated thyroid carcinoma is uncommon in children and constitutes 0.5% to 3% of all pediatric malignancies. Few studies have reported imaging findings of childhood papillary thyroid carcinomas. We report 3 cases of papillary thyroid carcinomas in children. Among the 3 patients, the youngest was a 7-year-old girl. In the current report, we describe 2 cases of classic papillary thyroid carcinoma and 1 case of pediatric diffuse sclerosing variant of papillary thyroid carcinoma. The ultrasonographic features and diagnostic procedures in these pediatric patients are similar to those in adults.

  11. [Lactobacilli and colon carcinoma--A review].

    Science.gov (United States)

    Wang, Shumei; Zhang, Lanwei; Shan, Yujuan

    2015-06-04

    Epidemiological studies showed that incidence of colon carcinoma is increased in the world. There are many difficulties to inhibit colon carcinoma because the causes of inducing colon carcinoma were various and interactive each other. Previous evidence supported the balance of the colonic microflora was critical in inhibiting colon carcinoma and the protection by colonic microflora could be improved by ingesting lactobacilli. Therefore, the biological functions and anticancer effects of lactobacilli attract attention of researchers. In this review we discussed the causes of colon carcinoma; the anticancer mechanisms of lactobacilli on the basis of our own studies. Eventually, we summarized the effects of anticancer of different components and metabolic products extracted from lactobacilli.

  12. Tubulocystic carcinoma of kidney associated with papillary renal cell carcinoma

    Directory of Open Access Journals (Sweden)

    Mahesh Deshmukh

    2011-01-01

    Full Text Available Tubulocystic renal cell carcinoma (TCRCC is a rare variant of renal cell carcinoma, which has distinct histology but there is some controversy about its association with papillary renal cell carcinoma (PRCC and cell of origin in literature. We report an 18-year-old girl with the rare TCRCC of kidney associated with PRCC with metastases to the para-aortic nodes. The patient presented with hematuria and a right renal mass with enlarged regional nodes for which a radical nephrectomy with retroperitoneal lymph node dissection was done. On gross examination, a solid cystic lesion involving the lower pole and middle pole of the kidney measuring 12x9x9 cm was seen along with an additional cystic lesion in upper pole of kidney. Microscopically the main tumor showed the typical histology of a tubulocystic carcinoma with multiple cysts filled with secretions lined by variably flattened epithelium with hobnailing of cells. The mass in the upper pole was a high-grade PRCC and the nodal metastases had morphology similar to this component. To conclude, at least a small but definite subset of TCRCC is associated with PRCC, and cases associated with PRCC do seem to have a higher propensity for nodal metastasis as in the case we report.

  13. DETECTION OF TELOMERASE ACTIVITY IN BREAST CARCINOMA

    Institute of Scientific and Technical Information of China (English)

    Yang Wentao; Xu Liangzhong; Zhang Taiming; Zhu weiping; Li Xiaomei; Jin Aiping

    1998-01-01

    Objective:To investigate the significance of telomerase activity in breast carcinoma with its respect to axillary lymph node status. Methods: Telomerase activity was analyzed in 88 breast carcinomas and 16benign breast lesions, using polymerase chain reaction (PCR)-based telomeric repeat amplification protocol (TRAP) assay. Results: Telomerase activity was detected in 75 (85%) of 88 breast carcinomas (including three breast carcinomas in situ which were all positive for telomerase activity), whereas in benign breast lesions analyzed only 2(12.5%) of 16 cases were positive for telomerase activity. The difference between the two groups was statistically significant (P<0.001). Besides,telomerase activity was expressed significantly higher in node-positive breast carcinoma (93%) than in nodenegative ones (77%) (P<0.05). Conclusion: Our results suggest that telomerase activation plays an important role during breast carcinoma development. It is possible that this enzyme may serve as an early indication of breast carcinoma.

  14. Osteopontin expression in salivary gland carcinomas

    DEFF Research Database (Denmark)

    Bjørndal, Kristine; Larsen, Stine R; Godballe, Christian;

    2011-01-01

    J Oral Pathol Med (2010) Background:  In several cancer types, osteopontin (OPN) expression has been correlated with tumor progression and prognosis. Two earlier studies have examined OPN expression in salivary gland carcinomas with contradictory results. Methods:  One hundred and seventy......-five patients with a primary salivary gland carcinoma diagnosed from January 1, 1990 to December 31, 2005 were identified in the local pathology register, Odense University Hospital. Criteria as documented by Allred et al. were used to assess OPN immunostaining that was performed on surgical specimens. Results......:  Osteopontin was expressed in all salivary gland carcinomas. Adenoid cystic carcinomas had the highest mean sum score (7.3) and a significantly higher proportion of carcinomas with high OPN sum score than both mucoepidermoid carcinoma and acinic cell carcinoma. Correlation of OPN expression with known...

  15. Xenotransplanted human prostate carcinoma (DU145) cells develop into carcinomas and cribriform carcinomas: ultrastructural aspects.

    Science.gov (United States)

    Gilloteaux, Jacques; Jamison, James M; Neal, Deborah R; Summers, Jack L; Taper, Henryk S

    2012-10-01

    Androgen-independent, human prostate carcinoma cells (DU145) develop into solid, carcinomatous xenotransplants on the diaphragm of nu/nu mice. Tumors encompass at least two poorly differentiated cell types: a rapidly dividing, eosinophilic cell comprises the main cell population and a few, but large basophilic cells able to invade the peritoneal stroma, the muscular tissue, lymph vessels. Poor cell contacts, intracytoplasmic lumina, and signet cells are noted. Lysosomal activities are reflected by entoses and programmed cell deaths forming cribriform carcinomas. In large tumors, degraded cells may align with others to facilitate formation of blood supply routes. Malignant cells would spread via ascites and through lymphatics.

  16. del cambio

    Directory of Open Access Journals (Sweden)

    Alejandro Canales

    2006-01-01

    Full Text Available El artículo analiza las propuestas y los compromisos en materia de cobertura y de financiamiento en el periodo 2000-2006. En particular, revisa las modificaciones y los ajustes de los tres principales documentos en los que se expresaron las iniciativas: el de la Asociación Nacional de Universidades e Instituciones de Educación Superior, el del equipo de la transición y el programa sectorial. Los resultados muestran que las cifras de atención a la demanda educativa e inversión quedaron lejos de las metas autoimpuestas por el gobierno federal y que será necesario realizar mayores esfuerzos para atender tales desafíos.

  17. Poliposis múltiple familiar y carcinoma de colon Multiple familial polyposis and carcinoma of the colon: report of a case

    Directory of Open Access Journals (Sweden)

    María Isabel Villegas

    1989-02-01

    Full Text Available

    La poliposis múltiple familiar (PMF es una enfermedad hereditaria rara pero que, frecuentemente, presenta degeneración maligna. En los pacientes con PMF la edad media de muerte por carcinoma colorrectal es 46 años. La frecuencia de éste después de efectuado el diagnóstico es de 12% en los primeros cinco años, 50% entre los 15 y los 20 años y 100% con posterioridad a los 35 años. El tratamiento del paciente con PMF es la refección del colon; se propone esta cirugía en el momento del diagnóstico debido al alto riesgo de desarrollar carcinoma del colon. Los tipos de tratamiento quirúrgico son: 1 Colectomía total con ileostomía definitiva; 2 colectomía y anastomosis ileorrectal; 3 colectomía, mucosectomía rectal yanastomosis ileoanal. Las indicaciones de cada técnica dependen de la edad del paciente, el número de pólipos en el recto y la presencia O no de carcinoma. Todos los pacientes, independientemente del tratamiento quirúrgico, deben ser estudiados con endoscopia digestiva superior, ya que un alto porcentaje presenta pólipos adenomatosos en estómago y duodeno, que también deben ser resecados. Se presenta el caso de una mujer joven, sin antecedentes familiares claros de PMF, que desarrolló adenocarcinoma del colon 9 años después del diagnóstico Inicial.

    We report the case of a young woman with MFP who developed colonic adenocarcinoma nine years after the initial diagnosis; she had no clear. cut history of MFP. This one is a rare, hereditary disease, with a tendency to malignant degeneration; the frequency of colorectal carcinoma increases from 12% five years after initial diagnosis, to 100% 30 years later. In order to prevent carcinoma, colectomy should be performed as soon as possible after diagnosis. Different surgical

  18. Cyclooxygenases in hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    Melchiorre Cervello; Giuseppe Montalto

    2006-01-01

    Many epidemiological studies demonstrate that treatment with non-steroidal anti-inflammatory drugs (NSAIDs) reduce the incidence and mortality of certain malignancies, especially gastrointestinal cancer. The cyclooxygenase (COX) enzymes are well-known targets of NSAIDs. However, conventional NSAIDs nonselectively inhibit both the constitutive form COX-1, and the inducible form COX-2. Recent evidence indicates that COX-2 is an important molecular target for anticancer therapies. Its expression is undetectable in most normal tissues, and is highly induced by proinflammatory cytokines, mitogens, tumor promoters and growth factors. It is now well-established that COX-2 is chronically overexpressed in many premalignant, malignant, and metastastic cancers, including hepatocellular carcinoma (HCC). Overexpression of COX-2 in patients with HCC is generally higher in welldifferentiated HCCs compared with less-differentiated HCCs or histologically normal liver, suggesting that COX-2 may be involved in the early stages of hepatocarcinogenesis, and increased expression of COX-2 in noncancerous liver tissue has been significantly associated with shorter disease-free survival in patients with HCC.In tumors, overexpression of COX-2 leads to an increase in prostaglandin (PG) levels, which affect many mechanisms involved in carcinogenesis, such as angiogenesis, inhibition of apoptosis, stimulation of cell growth as well as the invasiveness and metastatic potential of tumor ceils. The availability of novel agents that selectively inhibit COX-2 (COXIB), has contributed to shedding light on the role of this molecule. Experimental studies on animal models of liver cancer have shown that NSAIDs, including both selective and non-selective COX-2 inhibitors, exert chemopreventive as well as therapeutic effects. However, the key mechanism by which COX-2 inhibitors affect HCC cell growth is as yet not fully understood. Increasing evidence suggests the involvement of molecular targets other

  19. Breast metastases from rectal carcinoma

    Institute of Scientific and Technical Information of China (English)

    LI Jia; FANG Yu; LI Ang; LI Fei

    2011-01-01

    Metastases to the breast from extramammary neoplasms are very rare, constituting 2.7% of all malignant breast tumours. The most common primary tumor metastatic to the breast is primary breast cancer. Rectal cancer metastasizing to the breast is extremely rare. We report a case of aggressive rectal carcinoma with metastasis to the breast.

  20. Stages of Merkel Cell Carcinoma

    Science.gov (United States)

    ... when Merkel cells grow out of control. Merkel cell carcinoma starts most often in areas of skin exposed to the sun, especially the head and neck, as well as the arms, legs, and trunk. Enlarge Anatomy of the skin showing the epidermis, ...

  1. New Insights in Hepatocellular Carcinoma

    NARCIS (Netherlands)

    C.D.M. Witjes (Carlijn)

    2012-01-01

    textabstractHepatocellular carcinoma (HCC) is the fifth most common cancer worldwide and the third most common cause of cancer mortality. HCC is one of the few cancers with well-defined major risk factors. Worldwide, in 80% of the cases HCC develops in cirrhotic livers, and cirrhosis is the stronges

  2. Merkel cell carcinoma: a review.

    Science.gov (United States)

    Oram, Christian W; Bartus, Cynthia L; Purcell, Stephen M

    2016-04-01

    Merkel cell carcinoma (MCC) is a rare neuroendocrine tumor of unknown origin that usually presents in the elderly population. A novel polyomavirus has been associated with a large percentage of tumors. Immune response plays an important role in pathogenesis of MCC. This article reviews the history, pathogenesis, presentation, and treatment of MCC. Future treatments also are discussed briefly.

  3. Cryotherapy in basal cell carcinoma

    Directory of Open Access Journals (Sweden)

    Sandra A

    1999-01-01

    Full Text Available Cryotherapy has proved to be an effective tool in the management of various dermatoses. We report 6 patients with histopathologically proven basal cell carcinoma of variable sizes treated with liquid nitrogen cryotherapy by the open spray technique. Lesions tended to heal with depigmentation and scar formation. However depigmented areas often repigmented over a period of time.

  4. Carcinoma fusocelular de cavidad oral: Revisión de 9 casos Spindle cell carcinoma of the oral cavity: A review of 9 cases

    Directory of Open Access Journals (Sweden)

    G. Gómez Oliveira

    2006-02-01

    Full Text Available El carcinoma fusocelular es una variedad maligna y poco frecuente del carcinoma de células escamosas. Es una tumoración constituida por una doble proliferación celular: una sarcomatosa de células fusocelulares y otra carcinomatosa de células epiteliales. Aunque puede afectar a cualquier parte del organismo, es más frecuente encontrarla en vías aerodigestivas superiores. Afecta con mayor frecuencia a varones entre la 6ª y 7ª décadas de la vida. Tiene un comportamiento agresivo con tendencia a la recurrencia. El alcohol y tabaco han sido identificados como los factores de riesgo más importantes. Su diagnóstico histológico es complicado y muchas veces es necesario recurrir a técnicas de inmunohistoquímica y al uso del microscopio electrónico. En la actualidad, se le atribuye un origen epitelial. El objetivo de este trabajo es presentar una revisión de 9 casos de carcinoma fusocelular localizados en cavidad oral recogidos en nuestro servicio entre los años 1985 a 2004, describiendo su comportamiento clínico y tratando de comprender la patogenia de esta controvertida estirpe tumoral.Spindle cell carcinoma is a malignant and rare variant of squamous cell carcinoma. The histological pattern is composed of a double cell proliferation: a sarcomatous component made up of spindle-shaped cells and a carcinomatous component made up of epithelial cells. Nearly all the anatomy of the body can be affected by these tumors although the most common location is the upper aerodigestive tract. With regard to sex distribution, it is more frequent in males than in females in their sixth and seventh decades of life. Its behavior is aggressive and it tends to recur after treatment. The most important risk factors are alcohol and tobacco. The histological diagnosis is complicated, so immunohistochemical techniques and the use of electron microscopy are usually necessary. Nowadays, its epithelial origin is accepted. The aim of this article is to report a

  5. Carcinoma of Maxillary Sinus. A case Presentation. Carcinoma de seno maxilar. Presentación de caso.

    Directory of Open Access Journals (Sweden)

    Ángel Luis Cruz Leiva

    2007-01-01

    Full Text Available

    Tumors of the nasosinuous tract developed in the air cavities usually present a considerable growing before the patient feel any symptom or sign. Great part of the symptomatology is given due to the invasion of the tumor to neighbour structures such as oral and nasal cavities and orbits. A case of a 62 year-old male patient is presented after being under a dental extraction. A bucco-sinuous communication was diagnosed. It did not respond to different treatments and after some moths an epidermoid carcinoma of the right maxillary sinus appeared. It is of great interest to let this case been known in order to outstand the importance of an early diagnosis to get a better vital prognosis in this kinds of lesions.

    Los tumores del tracto nasosinusal al desarrollarse en cavidades aéreas, suelen presentar un considerable crecimiento antes de dar lugar a signos y síntomas. Gran parte de la sintomatología se debe a la invasión del tumor a estructuras vecinas, como son la órbita y la cavidad nasal y oral. Se presenta el caso de un paciente masculino, de 62 años de edad, al cual, tras haber sido sometido a una extracción dentaria, se le diagnosticó una comunicación bucosinusal, que no cedió a varias formas de tratamiento, lo que resultó varios meses después en un carcinoma epidermoide del seno maxilar derecho. El interés de dar a conocer este caso, radica en destacar la importancia de un diagnóstico precoz para conseguir mejorar el pronóstico vital en este tipo de afecciones.

  6. Metastatic renal cell carcinoma management

    Directory of Open Access Journals (Sweden)

    Flavio L. Heldwein

    2009-06-01

    Full Text Available PURPOSE: To assess the current treatment of metastatic renal cell carcinoma, focusing on medical treatment options. MATERIAL AND METHODS: The most important recent publications have been selected after a literature search employing PubMed using the search terms: advanced and metastatic renal cell carcinoma, anti-angiogenesis drugs and systemic therapy; also significant meeting abstracts were consulted. RESULTS: Progress in understanding the molecular basis of renal cell carcinoma, especially related to genetics and angiogenesis, has been achieved mainly through of the study of von Hippel-Lindau disease. A great variety of active agents have been developed and tested in metastatic renal cell carcinoma (mRCC patients. New specific molecular therapies in metastatic disease are discussed. Sunitinib, Sorafenib and Bevacizumab increase the progression-free survival when compared to therapy with cytokines. Temsirolimus increases overall survival in high-risk patients. Growth factors and regulatory enzymes, such as carbonic anhydrase IX may be targets for future therapies. CONCLUSIONS: A broader knowledge of clear cell carcinoma molecular biology has permitted the beginning of a new era in mRCC therapy. Benefits of these novel agents in terms of progression-free and overall survival have been observed in patients with mRCC, and, in many cases, have become the standard of care. Sunitinib is now considered the new reference first-line treatment for mRCC. Despite all the progress in recent years, complete responses are still very rare. Currently, many important issues regarding the use of these agents in the management of metastatic renal cancer still need to be properly addressed.

  7. LA POLITICA SOCIAL DEL "GOBIERNO DEL CAMBIO"

    OpenAIRE

    Laura Mota Díaz

    2002-01-01

    El artículo se centra en la política social del actual sexenio foxista , la cual se ha definido como incluyente y equitativa dentro del marco de un gobierno autodenominado del cambio, no sólo por lo que se refiere a la alternancia política del poder, sino porque además pretende ser un gobierno con una visión más amplia del desarrollo. Todo ello se traduce en nuevas estrategias para alcanzar la democracia, la equidad, la justicia social y el bienestar general de la población. El ob...

  8. Relación entre la pureza radioquímica del 123i-ioflupano y la captación extracraneal (tiroidea y parotídea

    Directory of Open Access Journals (Sweden)

    Lucía Díaz Platas

    2015-12-01

    Full Text Available Objetivo: Estudiar el efecto de la pureza radioquímica (PR del 123I-Ioflupano, utilizado para realizar SPECT cerebral de transportadores de dopamina, sobre las imágenes obtenidas y evaluar la posible influencia de la extravasación durante su administración y del grado de afectación del paciente por el síndrome parkinsoniano sobre los resultados. Material y métodos: Se realizó un estudio prospectivo en 39 pacientes. La PR del 123I-Ioflupano se determinó mediante cromatografía en capa fina. Se delimitaron las regiones de interés (ROI en zona aproximada de cerebro, parótidas y región cervical, obteniéndose la media de cuentas en cada región y las ratios de actividad tiroides/cerebro (RTC y parótidas/cerebro (RPC. Se propuso un modelo de regresión lineal múltiple con predictores cuantitativos y categóricos. Resultados: El modelo mostró correlación entre la PR y la RTC modificada por la presencia de extravasación, fue estadísticamente significativo (p<0,001 y predijo el 42,31% de la variabilidad de la RTC. La correlación entre PR y RPC no se modificó por ninguna de las variables propuestas. El modelo fue estadísticamente significativo (p<0,0176 y predijo el 12,3% de la variabilidad del RPC. Conclusiones: La capacidad predictiva del modelo para explicar la variabilidad de la RTC es aceptable y explica la repercusión negativa de la extravasación. Sin embargo, la capacidad para explicar la variabilidad de la RPC es baja y debe ser atribuida a variables no estudiadas. Una PR baja y la extravasación durante la administración del radiofármaco se traduce en mayor actividad extracraneal e implica peor calidad de imagen y mayor irradiación tiroidea.

  9. Carcinoma mucoepidermoide central de la mandíbula, en un paciente con displasia fibrosa quística mandibular

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    Ángel Lazo- Valladares

    2006-10-01

    Full Text Available El carcinoma mucoepidermoide de glándula salival es un tumor frecuente; constituye el 15% de los tumores de dicha estructura. Sin embargo, en la mandíbula son mucho menos frecuentes (menos de 200 casos reportados y se le conoce como carcinoma mucoepidermoide central. La patogenia de este tumor intraóseo sigue siendo controversial. Al igual que otros carcinomas intaóseos primarios, puede tener varios orígenes: 1 atropamiento de glándulas mucosas retromolares en la mandíbula, 2 epitelio del seno maxilar, 3 atropamiento iatrogénico de glándula salival menor (ej. en una osteomielitis o sinusitis crónica, 4 remanentes de lámina dental, 5 remanentes de tejido de glándula salival en la mandíbula, 6 transformación neoplásica de células mucosecretoras en el epitelio de revestimiento de quistes odontogénicos. Se presenta el caso de un hombre con un carcinoma mucoepidermoide central de la mandíbula y se hace una revisión del tema.Mucoepidermoid carcinomas of the salivary glands are frequent lesions that account for 15% of all salivary gland tumors, they are very infrequent in the mandible, with less than 200 cases reported and known as central mucoepidermoide carcinoma. The pathogenesis of this intraosseous tumor is still controversial. Several theories of their pathogenesis have been postulated: 1 entrapment of retromolar mucous glands within the mandible, 2 maxilla sinusepithelium, 3 iatrogenic entrapment of minor salivary glands (chronic osteomielitis or sinusitis, 4 dental lamina remnants, 5 developmentally included embryonic remnants of submandibular glands within the mandible, 6 neoplastic transformation of mucus-secreting cells in the epithelial lining of odontogenic cysts. We present the case of man with a central mucoepidermoide carcinoma and review of the literature of this uncommon condition.

  10. Expression of ATP7B in human gastric cardiac carcinomas in comparison with distal gastric carcinomas

    Institute of Scientific and Technical Information of China (English)

    Da-Long Wu; Hui-Xing Yi; Feng-Ying Sui; Xiao-Hong Jiang; Xiao-Ming Jiang; Ying-Ying Zhao

    2006-01-01

    AIM: To analyze expression of ATP7B in gastric cardiac adenocarcinomas, its clinicopathologic significance, in comparison with distal gastric adenocarcinomas.METHODS: Immunohistochemical avidin-biotin peroxidase complex method was applied to detect the expression of ATP7B in 49 cases of cardiac carcinomas,the corresponding adjacent non-neoplastic epithelium and 55 cases of distal gastric carcinomas.RESULTS: The proportion of ATP7B positive samples in gastric cardiac carcinomas (51.0%, 25 of 49) was significantly higher than that in the corresponding adjacent non-neoplastic epithelium (22.4%, 11 of 49)(P = 0.003). ATP7B expression in poorly differentiated gastric cardiac carcinomas was significantly higher than that in well/moderately differentiated gastric cardiac carcinomas (P = 0.030). ATP7B expression in gastric cardiac carcinomas was independent of age, tumor size, nodal stage and metastasis status. ATP7B protein was detected in 30.9% (17/55 cases) of distal gastric carcinomas, markedly lower than that in gastric cardiac carcinomas (P = 0.037).CONCLUSION: ATP7B protein is frequently overexpressed in gastric cardiac carcinomas, and correlated with the differentiation of cardiac carcinoma. ATP7B expression in gastric cardiac carcinomas is significantly higher than that in distal gastric carcinomas, which might partially explain the difference of chemotherapy response and prognosis between these two gastric carcinomas.

  11. del discurso

    Directory of Open Access Journals (Sweden)

    Alexander Mosquera

    2006-01-01

    Full Text Available En varios comunicados quedó reflejada la tensión de la reciente crisis entre Colombia y Venezuela, suscitada a raíz de la captura en diciembre de 2004 de un guerrillero de la FARC en Caracas (Rodrigo Granda. El presente trabajo es un avance de un proyecto de investigación, que persigue como objetivos: 1 describir el discurso implícito en dichos comunicados; 2 identificar los aspectos semánticos y pragmáticos presentes en la confrontación discursiva; y 3 delinear el componente ideológico reflejado en los comunicados. Para el respectivo análisis se siguieron algunos aspectos teóricos y metodológicos de Colle (2000, Bolívar (1998 yMolero de Cabeza (1985. Entre las conclusiones preliminares de este avance se tiene que, con el caso Granda, Colombia recurrió a la vieja política del "fin justifica los medios", a la vez que puso en entredicho el papel de Venezuela en la lucha contra el terrorismo, quizás como respuesta a su política exterior de estrechos vínculos con el gobierno estadounidense

  12. Epidemiologia do carcinoma basocelular Epidemiology of basal cell carcinoma

    Directory of Open Access Journals (Sweden)

    Valquiria Pessoa Chinem

    2011-04-01

    Full Text Available O carcinoma basocelular é a neoplasia maligna mais comum em humanos e sua incidência vem aumentando nas últimas décadas. Sua grande frequência gera significativo ônus ao sistema de saúde, configurando problema de saúde pública. Apesar das baixas taxas de mortalidade e de rara ocorrência de metástases, o tumor pode apresentar comportamento invasivo local e recidivas após o tratamento, provocando importante morbidade. Exposição à radiação ultravioleta representa o principal fator de risco ambiental associado a sua gênese. Entretanto, descrevem-se outros elementos de risco: fotótipos claros, idade avançada, história familiar de carcinomas de pele, olhos e cabelos claros, sardas na infância e imunossupressão, além de aspectos comportamentais, como exercício profissional exposto ao sol, atividade rural e queimaduras solares na juventude. Entre 30% e 75% dos casos esporádicos estão associados à mutação do gene patched hedgehog, mas outras alterações genéticas são ainda descritas. A neoplasia é comumente encontrada concomitantemente com lesões cutâneas relacionadas à exposição solar crônica, tais como: queratoses actínicas, lentigos solares e telangiectasias faciais. A prevenção do carcinoma basocelular se baseia no conhecimento de fatores de risco, no diagnóstico e tratamento precoces e na adoção de medidas específicas, principalmente, nas populações susceptíveis. Os autores apresentam uma revisão da epidemiologia do carcinoma basocelular.Basal cell carcinoma is the most common malignant neoplasm in humans and its incidence has increased over the last decades. Its high frequency significantly burdens the health system, making the disease a public health issue. Despite the low mortality rates and the rare occurrence of metastases, the tumor may be locally invasive and relapse after treatment, causing significant morbidity. Exposure to ultraviolet radiation is the main environmental risk factor

  13. Pure compared with mixed serous endometrial carcinoma: two different entities?

    NARCIS (Netherlands)

    Roelofsen, T.; Ham, M.A. van; Wiersma van Tilburg, J.M.; Zomer, S.F.; Bol, M.; Massuger, L.F.A.G.; Bulten, J.

    2012-01-01

    OBJECTIVE: : To analyze whether mixed compared with pure uterine papillary serous carcinoma histology affects clinical outcome, and to assess uterine papillary serous carcinoma for its association with the precursor lesion endometrial intraepithelial carcinoma. METHODS: : A multi-institution observa

  14. Axillary node metastasis from primary ovarian carcinoma

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    Trupti S Patel

    2014-01-01

    Full Text Available Metastasization and distinction from mammary carcinoma is of great clinical importance because of different treatment modalities. Here, we discuss a case of stage IIIC ovarian serous carcinoma, presenting with bilateral axillary nodes metastasis after 25 months interval of its initial presentation. Increased serum CA-125 level caused clinical suspicion. Computed tomography scan of abdomen and pelvis showed no residual disease or any abdominal lymphadenopathy. Mammography of both breast were normal. Bilateral axillary nodes were noted. Guided fine needle aspiration cytology (FNAC and biopsy of ovarian carcinoma to axillary node is a rare event. Its recogn done. Cytomorphology revealed poorly differentiated carcinoma, compatible to that of primary ovarian tumor. Thus, metastatic carcinoma to axillary node from ovary was confirmed. This case illustrates a rare metastatic presentation of ovarian carcinoma and unequivocal role of FNAC to provide rapid diagnosis and preferred to be first line diagnostic procedure.

  15. Proteomics in Discovery of Hepatocellular Carcinoma Biomarkers

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Objective: To discover new proteomic biomarkers of hepatocellular carcinoma. Methods: Surface enhanced laser desorption/ionization time-of-flight (SELDI-TOF) mass spectrometry was used to discover biomarkers for differentiating hepatocellular carcinoma and chronic liver disease. A population of 50 patients with hepatocellular carcinoma and 33 patients with chronic liver disease was studied. Results: Twelve proteomic biomarkers of hepatocellular carcinoma were detected in this study. Three proteomic biomarkers were highly expressed in hepatocellular carcinoma and nine proteomic biomarkers were highly expressed in chronic liver disease. The most valuable proteomic biomarker with m/z=11498 had no similar diagnostic value as α-fetoprotein. Conclusion:Some of the twelve proteomic biomarkers may become new biomarkers of hepatocellular carcinoma.

  16. Hashimoto's Thyroiditis and Medullary Carcinoma of Thyroid.

    Science.gov (United States)

    Dasgupta, S; Chakrabarti, S; Mandal, P K; Das, S

    2014-01-01

    Hashimoto's thyroiditis (HT) has been found to be associated with lymphoma, papillary carcinoma and Hürthle cell neoplasms of thyroid. In contrast, there are only a few reports of co-existence of HT with medullary carcinoma of thyroid. An overall prevalence of medullary carcinoma of only 0.35% has been reported in HT patients. Such a rare combination is being presented here. A 33 year old female presented with history of goiter for one year. Fine needle aspiration cytology (FNAC) of the swelling revealed cytological features suggestive of medullary carcinoma of thyroid. Histopathological examination of total thyroidectomy specimen revealed Hashimoto's thyroiditis along with medullary carcinoma of thyroid. Although Hashimoto's thyroiditis can uncommonly co-exist with thyroid neoplasm, its association with medullary carcinoma is extremely rare and hence being presented.

  17. PREVALENCIA Y DISTRIBUCIÓN GEOGRÁFICA DEL CÁNCER EN EL ÁREA DE SALUD DE GUADALAJARA

    Directory of Open Access Journals (Sweden)

    José Ma. Alonso Gordo

    2004-01-01

    Full Text Available Fundamento: La prevalencia total de cáncer oscila entre un 2 y un 3% de la población. Algunos datos sugieren diferencias en función del medio urbano o rural, de otros factores geográficos, y en el entorno de las centrales nucleares. El objetivo de este trabajo es conocer dichas prevalencias y su distribución en las diferentes zonas geográficas del Area de Salud de Guadalajara. Métodos: Estudio de prevalencia de punto, en 1999, mediante revisión sistemática de casos en fuentes primarias y secundarias del Area de Salud de Guadalajara. Se incluyen tumores malignos invasivos en mayores de 14 años. Se analiza la distribución general y específica en función del lugar de residencia, comarca, y proximidad a las centrales nucleares. Se calculan prevalencias crudas y ajustadas/ 100.000 h y razón de prevalencia con IC al 95%. Resultados: Se detectaron 2.717 casos (prevalencia cruda: 2034,6/105, repartidos al 50% entre el medio urbano y el rural. La prevalencia ajustada (a población mundial es de 1295,2/105, mayor en el medio urbano (1479,9/105 que en el rural (1136,3/105. En relación con las comarcas geográficas únicamente el cáncer de tiroides es más prevalente en mujeres en las zonas más deprimidas y montañosas, si bien con baja casuística. Conclusiones: Las prevalencias de cáncer encontradas son similares a las publicadas y, tras ajuste por edad, son mayores en el medio urbano que en el rural. Las diferencias entre comarcas se relacionan con las características demográficas, geográficas y el carácter urbano.

  18. Mapeo linfático y biopsia del ganglio centinela en cáncer de pene. Estudio de factibilidad y reporte preliminar

    OpenAIRE

    Narciso Hernández-Toris; Joel Quintero-Becerra; José Francisco Gallegos-Hernández; Ramiro Flores-Ojeda; Isabel Alvarado-Cabrero; Donaciano Flores-López; Pablo Pichardo-Romero

    2007-01-01

    La mayoría de los pacientes con carcinoma epidermoide invasor de pene no tiene metástasis ganglionares inguinales al momento del diagnóstico; en 50 % de los ganglios palpables la causa es inflamatoria. El tratamiento del cáncer peneano implica resección del tumor primario y linfadenectomía inguinal, sin embargo, la morbilidad derivada del procedimiento es alta y la utilidad cuestionable en pacientes sin metástasis en ganglios disecados. El mapeo linfático con biopsia del ganglio centinela (ML...

  19. Intraosseous carcinoma of the jaws: A clinicopathologic review. Part III: Primary intraosseous squamous cell carcinoma

    NARCIS (Netherlands)

    Woolgar, J.A.; Triantafyllou, A.; Ferlito, A.; Devaney, K.O.; Lewis Jr., J.S.; Rinaldo, A.; Slootweg, P.J.; Barnes, L.

    2013-01-01

    This is the third part of a review of the clinicopathologic features of intraosseous carcinoma of the jaws (IOCJ). In parts 1 and 2, we discussed metastatic and salivary-type and odontogenic carcinomas, respectively. This part deals with primary intraosseous squamous cell carcinoma. Again, based on

  20. Sinonasal verrucous carcinoma with oral invasion

    Directory of Open Access Journals (Sweden)

    Karthikeya P

    2006-01-01

    Full Text Available Verrucous carcinoma is a rare warty variant of squamous cell carcinoma, most often seen in the oral cavity and larynx. Its occurrence in the sinonasal tract is rare. This tumor constitutes approximately 1% of all sinonasal neoplasms. The clinical presentation and the histopathological features of verrucous carcinoma are a subject of continuous discussion amongst diagnosticians and pathologists. A case with oral and nasal presentation of this tumor is reported here.

  1. PARESIA O PARALISIS DE LAS CUERDAS VOCALES. DESPUÉS DE LA TIROIDECTOMÍA CON RUTINARIA IDENTIFICACIÓN. DEL NERVIO RECURRENTE.

    Directory of Open Access Journals (Sweden)

    Paúl Coronel

    2007-02-01

    Full Text Available RESUMENAntecedentes. La paresia o parálisis de las cuerdas vocales es una de las complicaciones más frecuente después de las operaciones en la glándula tiroides.Objetivos: Valorar el riesgo de las lesiones de los nervios recurrentes durante la tiroidectomías.Diseño: Estudio descriptivo, transversal retrospectivo no randomizado. Ambiente. Servicio de Cirugía General número 1 hospital Universitario Miquel Pérez Carreño Universidad Central de VenezuelaPacientes y métodos: La presente investigación estuvo limitada a 651 pacientes, femeninos 77,3%, masculinos 22,6%. En el 66,7% se realizó lobectomía total, en 33,2%, tiroidectomía total. Los porcentajes de parálisis temporal o permanente de las cuerdas vocales fueron analizados de acuerdo a si la intervención se realizó por enfermedad benigna, cáncer, o reintervención. Se excluyeron 26 pacientes con diagnóstico de cáncer del tiroides en los cuales se sacrifico el nervio.En 40 pacientes (6,1% se presentó parálisis post operatoria. La recuperación del nervio fue documentada en el 94,6%, en quienes la integridad de los nervios se comprobó durante la cirugía. El tiempo de recuperación de la parálisis temporal fue entre 3 días y 6 meses. La frecuencia de parálisis temporal o permanente fue: 4,0 % / 0,2 %, en enfermedad benigna, 2,0% / 0,7%, en el cáncer, 12,0%/ 1,1%. En la enfermedad de Graves Bassedow, y entre el 10,8% / 8,1% en las reintervenciones.Las operaciones por cáncer, enfermedad de Graves Bassedow, o bocios recurrentes tienen un alto porcentaje de parálisis. La invasión de los nervios fue identificada en un 19,4% de los pacientes intervenidos por cáncer del tiroides. ABSTRACT: CORD PARÁLISIS AND PARESIA AFTER THYROIDECTOMY WITH ROUTINE IDENFIFICATION OF RECURRENT LARYNGEAL NERVE.The aim of this study was assess the risk of recurrent laryngeal nerve palsy after thyroidectomy with routine identification of the recurrent laryngeal nerve during the operation

  2. [Tumor markers for hepatocellular carcinoma].

    Science.gov (United States)

    Tateishi, Ryosuke; Enooku, Kenichiro; Shiina, Shuichiro; Koike, Kazuhiko

    2012-05-01

    Three tumor markers for hepatocellular carcinoma (HCC) are available in Japan: alpha-fetoprotein (AFP), protein induced by vitamin K absence or antagonists-II (PIVKA-II), and Lens culinaris agglutinin-reactive fraction of alpha-fetoprotein (AFP-L3). Although AFP has drawbacks in its specificity, it is widely utilized in treatment evaluation and prognosis prediction. PIVKA-II is a unique marker that does not correlate with AFP value and can predict microvascular invasion. AFP-L3 is a highly specific marker and strong predictor of poor prognosis. These three markers are indispensable in every aspect of clinical practice of hepatocellular carcinoma including surveillance, diagnosis, treatment evaluation, and prognosis prediction.

  3. Epigenetic mechanisms in penile carcinoma

    DEFF Research Database (Denmark)

    Kuasne, Hellen; Marchi, Fabio Albuquerque; Rogatto, Silvia Regina

    2013-01-01

    Penile carcinoma (PeCa) represents an important public health problem in poor and developing countries. Despite its unpredictable behavior and aggressive treatment, there have only been a few reports regarding its molecular data, especially epigenetic mechanisms. The functional diversity in diffe......Penile carcinoma (PeCa) represents an important public health problem in poor and developing countries. Despite its unpredictable behavior and aggressive treatment, there have only been a few reports regarding its molecular data, especially epigenetic mechanisms. The functional diversity...... in different cell types is acquired by chromatin modifications, which are established by epigenetic regulatory mechanisms involving DNA methylation, histone acetylation, and miRNAs. Recent evidence indicates that the dysregulation in these processes can result in the development of several diseases, including...

  4. DNA methylation in hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    Iris Tischoff; Andrea Tannapfel

    2008-01-01

    As for many other tumors, development of hepatocellular carcinoma (HCC) must be understood as a multistep process with accumulation of genetic and epigenetic alterations in regulatory genes, leading to activation of oncogenes and inactivation or loss of tumor suppressor genes (TSG). In the last decades, in addition to genetic alterations, epigenetic inactivation of (tumor suppressor) genes by promoter hypermethylation has been recognized as an important and alternative mechanism in tumorigenesis. In HCC, aberrant methylation of promoter sequences occurs not only in advanced tumors, it has been also observed in premalignant conditions just as chronic viral hepatitis B or C and cirrhotic liver. This review discusses the epigenetic alterations in hepatocellular carcinoma focusing DNA methylation.

  5. Gastric Large Cell Neuroendocrine Carcinoma

    Science.gov (United States)

    Rustagi, Tarun; Alekshun, Todd J.

    2010-01-01

    Case: A 63-year-old male presented with unintentional weight loss of 20 pounds over a 4-month duration. He reported loss of appetite, intermittent post-prandial nausea, bloating and early satiety. He also complained of dyspepsia and had been treated for reflux during the previous 2 years. He denied vomiting, dysphagia, odynophagia, abdominal pain, melena, hematochezia, or alterations in bowel habits. Additionally, he denied fevers, night sweats, cough, or dyspnea. He quit smoking 25 years ago, and denied alcohol use. His past medical history was significant for basal cell carcinoma treated with local curative therapy and he was without recurrence on surveillance. Pertinent family history included a paternal uncle with lung cancer at the age of 74. Physical examination was unremarkable except for occult heme-positive stools. Laboratory evaluation revealed elevated liver enzymes (ALT-112, AST-81, AlkPhos-364). CT scan of the chest, abdomen and pelvis showed diffuse heterogeneous liver with extensive nodularity, raising the concern for metastases. Serum tumor-markers: PSA, CEA, CA 19-9, and AFP were all within normal limits. Screening colonoscopy was normal, but esophagogastroduodenoscopy revealed a malignant-appearing ulcerative lesion involving the gastro-esophageal junction and gastric cardia. Pathology confirmed an invasive gastric large cell neuroendocrine carcinoma. Ultrasound-guided fine needle aspiration of a hepatic lesion revealed malignant cells with cytologic features consistent with large-cell type carcinoma and positive immunostaining for synaptophysin favoring neuroendocrine differentiation. A PET-CT demonstrated intense diffuse FDG uptake of the liver, suggesting diffuse hepatic parenchymal infiltration by tumor. There were multiple foci of intense osseous FDG uptake with corresponding osteolytic lesions seen on CT scan. The remaining intra-abdominal and intra-thoracic structures were unremarkable. The patient will receive palliative systemic therapy

  6. Primary myoepithelial carcinoma of palate

    OpenAIRE

    Yang Ya; Yang Yunyi; Li Zongfang; Zhang Xiaozhi; Li Yi; Liu Xiaoping; Liu Zi; Ren Juan; Chen Yuanyuan; Jiang Shiwen

    2011-01-01

    Abstract Objectives The aim of this study was to present a rare neoplasm, Primary myoepithelial carcinoma arising from the palate, and to review its diagnostic criteria, pathologic and clinical characteristics, treatment options and prognosis. Clinical Presentation and Intervention Myoepitheliomas are tumors arising from myoepithelial cells mainly or exclusively. Myoepitheliomas mostly occur in salivary glands, as well as in breast, skin, and lung. Case of myoepitheliomas in palate has rarely...

  7. Anaplastic giant cell thyroid carcinoma.

    Science.gov (United States)

    Wallin, G; Lundell, G; Tennvall, J

    2004-01-01

    Anaplastic (giant cell) thyroid carcinoma (ATC), is one of the most aggressive malignancies in humans with a median survival time after diagnosis of 3-6 months. Death from ATC was earlier seen because of local growth and suffocation. ATC is uncommon, accounting for less than 5 % of all thyroid carcinomas. The diagnosis can be established by means of multiple fine needle aspiration biopsies, which are neither harmful nor troublesome for the patient. The cytological diagnosis of this high-grade malignant tumour is usually not difficult for a well trained cytologist. The intention to treat patients with ATC is cure, although only few of them survive. The majority of the patients are older than 60 years and treatment must be influenced by their high age. We have by using a combined modality regimen succeeded in achieving local control in most patients. Every effort should be made to control the primary tumour and thereby improve the quality of remaining life and it is important for patients, relatives and the personnel to know that cure is not impossible. Different treatment combinations have been used since 30 years including radiotherapy, cytostatic drugs and surgery, when feasible. In our latest combined regimen, 22 patients were treated with hyper fractionated radiotherapy 1.6Gy x 2 to a total target dose of 46 Gy given preoperatively, 20 mg doxorubicin was administered intravenously once weekly and surgery was carried out 2-3 weeks after the radiotherapy. 17 of these 22 patients were operated upon and none of these 17 patients got a local recurrence. In the future we are awaiting the development of new therapeutic approaches to this aggressive type of carcinoma. Inhibitors of angiogenesis might be useful. Combretastatin has displayed cytotoxicity against ATC cell lines and has had a positive effect on ATC in a patient. Sodium iodide symporter (NIS) genetherapy is also being currently considered for dedifferentiated thyroid carcinomas with the ultimate aim of

  8. Warty Carcinoma Penis: An Uncommon Variant

    Science.gov (United States)

    Ghosh, Arnab; Shrestha, Santosh; Ghartimagar, Dilasma; Narasimhan, Raghavan; Talwar, OP

    2017-01-01

    Penile carcinoma frequency varies widely in different parts of the world and comprises 1–10% of all the malignancies in males. Majority of the cases of penile carcinoma are squamous cell carcinoma of penis comprising 60% to 70% of all cases. Warty carcinoma of penis is an unusual neoplasm and a variant of penile squamous cell carcinoma comprising 5%–10% of all the variants. The other histological variants include basaloid, verrucous, papillary, sarcomatous, mixed, and adenosquamous carcinoma. The various histological entities with an exophytic papillary lesions including warty carcinoma are together referred to as the “verruciform” group of neoplasms. The warty carcinoma has to be differentiated from these lesions and is typically distinguished by histological features of hyperkeratosis, arborescent papillomatosis, acanthosis, and prominent koilocytosis with nuclear pleomorphism. We present a case of 65-year-old male with growth measuring 6 × 4 cm in the penis who underwent total penectomy and was diagnosed as warty carcinoma penis. PMID:28154768

  9. Intrathyroidal parathyroid carcinoma: A case report

    Energy Technology Data Exchange (ETDEWEB)

    You, Woo Young; Han, You Mie; Choi, Young Hee [Hallym University College of Medicine, Dongtan Sacred Heart Hospital, Hwaseong (Korea, Republic of)

    2015-05-15

    Parathyroid carcinoma is an uncommon malignancy and a rare cause of primary hyperparathyroidism. Intrathyroidal parathyroid carcinoma is even rarer and only few cases have been reported previously. A 33-year-old woman presented with hypercalcemia. CT scan revealed a 5-cm sized intrathyroid nodule with a positive beak sign on the surface in contact with the thyroid gland. The patient underwent total thyroidectomy, and the histopathologic examination confirmed the diagnosis of parathyroid carcinoma. We report a case of intrathyroidal parathyroid carcinoma with brief literature review.

  10. Circumscribed breast carcinoma: Mammographic and sonographic findings

    Energy Technology Data Exchange (ETDEWEB)

    Chung, Soo Young; Lee, Yul; Park, Ki Soon; Lee, Ke Sook [College of Medicine, Hallym University, Seoul (Korea, Republic of)

    1992-03-15

    Circumscribe breast cancer is a well demarcated mass with or without a lobulated border simulating a benign tumor like fibroadenoma on mammography or breast US and is reported as approximate 10% of the incidence among primary breast carcinoma(1.2). Pathologically medullary, colloid, papillary, intraductal and rarely invasive ductal carcinomas are included in this group which show the less intense desmoplastic reaction than the scirrhous type cancer, resulting in the most favorable prognosis of all carcinoma of the breast. Among 214 primary breast carcinoma during the past 8 years, we experienced 6 case of pathologically proven circumscribed breast cancer(2 cases of medullary carcinoma, 1 of colloid carcinoma, 1 of intracystic papillary carcinoma, 2 of comedo type intraductal carcinoma). Clinically 2 cases showed bloody nipple discharge from one hole of a unilateral nipple orifice. Mammography showed a well circumscribed nodule with or without partial lobular contour and no pathologic calcification. Breast sonographic findings were a well defined heterogeneous hypoechoic nodule with weak posterior acoustic enhancement. Characteristically a thin dilated lactiferous duct between the mass and the nipple on US could be detected in 2 cases which clinically was accompanied by bloody nipple discharge. Although the mammographic criteria is promising as benign tumor, the possibility of circumscribed as benign tumor, the possibility of circumscribed breast carcinoma must be considered in heterogeneous hypoechoic nodule with weak posterior acoustic enhancement in US, especially in the presence of a dilated lactiferous duct between the mass and the nipple with bloody nipple discharge.

  11. Verrucous carcinoma - report on two cases

    Directory of Open Access Journals (Sweden)

    Padmavathy L

    2009-01-01

    Full Text Available Squamous cell carcinoma is a common malignant tumor of the keratinizing cells of the epidermis. Verrucous carcinoma or Ackerman′s tumor is a subtype of low grade squamous cell carcinoma that can affect cutaneous and mucous surfaces. Two cases of Verrucous carcinoma affecting the lip and oral mucous membrane (oral florid papillomatosis are being reported. One patient had a co-existent sub mucous fibrosis, a pre-malignant lesion and two auto-immune disorders, i.e., diabetes mellitus and vitiligo.

  12. Salivary gland carcinomas of the larynx

    DEFF Research Database (Denmark)

    Nielsen, Troels Krogh; Bjørndal, Kristine; Krogdahl, Annelise

    2012-01-01

    OBJECTIVE: Salivary gland carcinomas of the larynx are rare. The purpose of this study is to present a national series of laryngeal salivary gland carcinoma patients and to bring a review of recent literature. METHODS: By merging The Danish Cancer Registry, The National Pathology Registry...... a review of literature from 1991 to 2010 was performed. RESULTS: Six Danish patients with a malignant salivary gland tumor in the larynx were identified resulting in an incidence of 0.001/100,000 inhabitants/year. Four had adenoid cystic carcinoma and two a mucoepidermoid carcinoma. All patients were male...

  13. Nuevas consideraciones en el diagnóstico del queratoquiste odontogénico

    OpenAIRE

    Barreto, Diele C.; Chimenos Küstner, Eduardo

    2001-01-01

    El queratoquiste odontogénico (QO) es una forma clínica e histológicamente bien diferenciada de otros quistes odontogénicos. Es conocido por su agresividad, elevada tasa de recurrencia y puede estar asociado al síndrome del carcinoma basocelular nevoide (SCBN). Recientemente se ha propuesto en la literatura que la pérdida del gen supresor de tumor patched humano (ptch) es el posible origen molecular del QO. En este trabajo se revisan las características clínicas, histopatológicas y moleculare...

  14. Tabaco y lesiones premalignas. Prevención del cáncer oral

    OpenAIRE

    Costela Serrano, Carmen; Murcia Gallardo, Gloria Rosa; Perandrés Yuste, Sergio Antonio

    2015-01-01

    Cartel presentado en la Segunda Conferencia Internacional de Comunicación en Salud, celebrada el 23 de octubre de 2015 en la Universidad Carlos III de Madrid Introducción: el cáncer de cabeza y cuello representa el 5% de todas las neoplasias del organismo. El carcinoma oral de células escamosas es la neoplasia maligna más frecuente en la cavidad oral. Su mortalidad a los cinco años es del 50%, de ahí la importancia del diagnóstico precoz y de su prevención. El precancer es una situación pr...

  15. Microcystic Variant of Urothelial Carcinoma

    Directory of Open Access Journals (Sweden)

    Anthony Kodzo-Grey Venyo

    2013-01-01

    Full Text Available Background. Microcystic variant of urothelial carcinoma is one of the new variants of urothelial carcinoma that was added to the WHO classification in 2004. Aims. To review the literature on microcystic variant of urothelial carcinoma. Methods. Various internet search engines were used to identify reported cases of the tumour. Results. Microscopic features of the tumour include: (i Conspicuous intracellular and intercellular lumina/microcysts encompassed by malignant urothelial or squamous cells. (ii The lumina are usually empty; may contain granular eosinophilic debris, mucin, or necrotic cells. (iii The cysts may be variable in size; round, or oval, up to 2 mm; lined by urothelium which are either flattened cells or low columnar cells however, they do not contain colonic epithelium or goblet cells; are infiltrative; invade the muscularis propria; mimic cystitis cystica and cystitis glandularis; occasionally exhibit neuroendocrine differentiation. (iv Elongated and irregular branching spaces are usually seen. About 17 cases of the tumour have been reported with only 2 patients who have survived. The tumour tends to be of high-grade and high-stage. There is no consensus opinion on the best option of treatment of the tumour. Conclusions. It would prove difficult at the moment to be dogmatic regarding its prognosis but it is a highly aggressive tumour. New cases of the tumour should be reported in order to document its biological behaviour.

  16. Carcinoma escamoso metastásico primario de origen desconocido. Presentación de un caso Primary Metastatic Squamous Cell Carcinoma of Unknown Origin. A Case Report

    Directory of Open Access Journals (Sweden)

    Miguel Ángel Serra Valdés

    2012-12-01

    Full Text Available El cáncer primario oculto representa según varias series del 0,5 al 7 % de todos los cánceres que se diagnostican y la edad media de presentación es 60 años. Se presenta un caso de metástasis ganglionar de carcinoma primario de células escamosas no identificado, de una paciente de 58 años de edad, de color de piel blanca, con antecedentes de salud, ama de casa, que fumaba desde joven e ingería alcohol frecuentemente. Ingresó con aumento de volumen de los ganglios del cuello. Se diagnosticó por biopsia metástasis de carcinoma escamoso. No pudo identificarse el primario en vida ni en la necropsia. El cáncer metastásico primario de origen desconocido sigue siendo un reto para la práctica clínica.Occult primary cancer represents, according to several series, from 0,5 % to 7 % of all diagnosed cancers, the average onset age being 60 years old. We report the case of nodal metastasis of unidentified primary squamous cell carcinoma in a 58 years old patient with white skin and a history of good health. The patient was a housekeeper who smoked from early age and frequently consumed alcohol. She was admitted with an enlargement of the neck glands. Metastases of squamous cell carcinoma were diagnosed through biopsy. Primary cancer was not identified neither while still alive or at necropsy. Primary metastatic cancers of unknown origin remain a challenge for clinical practice.

  17. [Hepatocellular carcinoma. Part 2. Treatment].

    Science.gov (United States)

    Conte, V P

    2000-01-01

    Recent improvements on the therapeutical management of hepatocellular carcinoma are revised with special attention to evaluate the role of surgery for the disease. Considering that definitive surgical intervention is not feasible in most cases because of extreme tumor extension, multiplicity of tumor foci, and associated advanced liver cirrhosis at the time of diagnosis, others forms of treatment are listed, such as transcatheterarterial chemoembolization, percutaneous ethanol and acetic acid injections, and chemotherapy only to a small portion of patients with no indication for standard treatments. The emerging role of retinoic acid metabolism blocking agents, was examined and may offer a significant new potential treatment for cancer, inclusive the possibility of combining other anticancer drugs with exogenous retinoids or modulation of endogenous retinoids as a real opportunity to advance our ability to treat or prevent human cancer effectively Octreotide, nitrosamine and other drugs are analyzed and is concluded that improves survival and is a valuable alternative in the treatment of inoperable hepatocellular carcinoma. The potential role of intersticial laser coagulation for patients with irresectable hepatic tumors was investigated, and in terms of experience, it has now been developed sufficiently to study its effect on these patients survival. The homeostatic control of angiogenesis and its influences on the tumor growth and for migration of metastatic cells, was focused in this concise review, given that hepatocytes are the source of much of the precursor pool, regulation of angiogenesis may be regarded as a new liver function with important consequences for tissue repair and cancer. Early hepatocellular carcinoma and its recognition in routine clinical practice contributes to improved patients survival. Recombinant-Interferon-alpha therapy surely prevents, the development of cirrhosis or hepatocellular carcinoma in about one-third of patients, with

  18. EPIDEMIOLOGICAL STUDY OF CARCINOMA OESOPHAGUS

    Directory of Open Access Journals (Sweden)

    Shafi

    2016-05-01

    Full Text Available Oesophageal malignancies are not an uncommon disease entity in this part of India. It is observed in both the sexes. Patients present with progressive dysphagia for solids. The duration of symptoms varies from 6 months to 2 years. Among the various aetiological factors, smoking, alcohol intake, spicy hot food intake, industrial pollution and achalasia cardia are a few worth mentioning. AIM OF THE STUDY To evaluate the differences in the predisposing factors causing squamous cell carcinoma and adenocarcinoma of oesophagus in this part of India. MATERIALS AND METHODS The study is conducted in the Department of Surgery at Government Medical College Hospital, Kozhikode; Kerala. One hundred patients attending the Department with history of Dysphagia were included after thorough history taking, clinical and endoscopic examination and found to have malignant growths in the oesophagus which was confirmed by biopsy and histopathological examination. Various aetiological factors were elicited and analysed in both the histological varieties of malignancy of oesophagus. OBSERVATIONS AND RESULTS Significant number of patients with history of paan chewing presented with histological picture of squamous cell carcinoma as compared to patients who had adenocarcinoma. Gastroesophageal reflux disease was more commonly associated with adenocarcinoma. Out of 37 patients with adenocarcinoma, 31 patients had history of gastroesophageal reflux disease (83.8%. 6 patients had no history of gastroesophageal reflux disease (16.2% within histology. Consumption of hot drinks, tea and coffee more than 10 per day has been analysed. 52 were consuming, 48 were not consuming, P value 0.179 non-significant. CONCLUSIONS Squamous cell carcinoma is more prevalent as compared to adenocarcinoma in present study. The main factor that has emerged is lifestyle, dietary habit, smoking and alcohol, and environmental factor. Consumption of alcohol and smoking is known risk factors in

  19. Cisplatin, Radiation Therapy, and Pembrolizumab in Treating Patients With Stage III-IV Head and Neck Squamous Cell Carcinoma

    Science.gov (United States)

    2016-05-16

    Stage III Hypopharyngeal Squamous Cell Carcinoma; Stage III Laryngeal Squamous Cell Carcinoma; Stage III Oral Cavity Squamous Cell Carcinoma; Stage III Oropharyngeal Squamous Cell Carcinoma; Stage IVA Hypopharyngeal Squamous Cell Carcinoma; Stage IVA Laryngeal Squamous Cell Carcinoma; Stage IVA Oral Cavity Squamous Cell Carcinoma; Stage IVA Oropharyngeal Squamous Cell Carcinoma; Stage IVB Hypopharyngeal Squamous Cell Carcinoma; Stage IVB Laryngeal Squamous Cell Carcinoma; Stage IVB Oral Cavity Squamous Cell Carcinoma; Stage IVB Oropharyngeal Squamous Cell Carcinoma

  20. Differential Diagnosis of a Follicular Carcinoma and Papillary Carcinoma of the Thyroid Gland Based on Sonographic Findings

    Energy Technology Data Exchange (ETDEWEB)

    Yi, Kyung Sik; Bae, Il Hun; Lee, Seung Young; Jeon, Min Hee [Chungbuk National University College of Medicine, Cheongju (Korea, Republic of)

    2007-12-15

    The purpose of this study was to evaluate and compare the sonographic findings of a conventional papillary carcinoma, follicular carcinoma and a follicular variant of a papillary carcinoma. A total of 308 nodules from 231 patients that were diagnosed with a papillary carcinoma and a follicular carcinoma by surgery after sonography were analyzed. The nodules consisted of a conventional papillary carcinoma (255, 83%), a follicular variant of a papillary carcinoma (25, 8%), and a follicualar carcinoma (28, 9%). We compared and analyzed the sonographic findings of each nodule for content, margin, echotexture, shape, calcification and halo sign. A conventional papillary carcinoma showed significant different sonographic findings than a follicular carcinoma and a follicular variant of a papillary carcinoma for an ill-defined or well-defined spiculated margin (63.1%), marked hypoechogenicity (85.9%) and microcalcification (49%). A follicular carcinoma showed a significant difference than a conventional papillary carcinoma for a well-defined smooth margin (92.9%), iso, hypo- or hyperechogenicity (89.3%), wider than tall shape (100%) and halo sign (82.1%). The follicular variant of a papillary carcinoma showed similar findings to a follicular carcinoma except for marked hypoechogenicity (44%, p = 0.006) and taller than wide shape (16%, p = 0.027). The follicular carcinoma and follicular variant of a papillary carcinoma showed similar sonographic findings, but findings of a conventional papillary carcinoma were different

  1. Carcinoma basocelular metastásico en la región parotídea: un nuevo caso Basal cell carcinoma metastatic to the parotid area: case report

    Directory of Open Access Journals (Sweden)

    T. Pérez de la Fuente

    2006-03-01

    Full Text Available El carcinoma basocelular es la tumoración cutánea maligna más frecuente. Junto con el carcinoma espinocelular su localización habitual es a nivel de cabeza y cuello y a diferencia de éste la tasa de metástasis regionales es mucho más baja. Presentamos el caso de una mujer de 85 años con un carcinoma basocelular a nivel del pabellón auricular derecho, que inicialmente se trató mediante extirpación y cierre. A los 2 años presentó recidiva local en la zona inferior del pabellón auricular y en la exploración física se apreció una tumoración dura a nivel submandibular derecho. Se realizó punción aspiración con aguja fina (PAAF que fue positiva para metástasis de carcinoma basocelular. La Tomografía Axial Computerizada (TAC mostraba una masa única en la región submandibular no adherida a la mandíbula. El tratamiento consistió en extirpación de la recidiva local y parotidectomía superficial más vaciamiento cervical funcional del lado derecho. La paciente se negó a realizar tratamiento con radioterapia complementaria. En la actualidad la paciente está viva y realiza revisiones periódicas.Basal cell carcinoma is the most common cutaneous malignancy. As the scamous cell carcinoma its first location is in head and neck, but the rate of regional metastases is much lower. We present the case of an 85-year-old woman with a basal cell carcinoma located on the ear. She was first treated by local excision and direct suture. Two years later presented a local recurrence in the lower part of the ear. At this time a physical neck exam revealed a submandibular node. Fine needle aspiration was positive for basal cell carcinoma metastases, and a Computed Tomography (CT showed a single mass in the submandibular region not in contact with bone. Treatment consisted on a wide local excision, superficial parotidectomy and ipsilateral functional neck dissection. The patient refused postoperative radiotherapy treatment. At this moment the

  2. NUT midline carcinomas in the thymic region.

    Science.gov (United States)

    Gökmen-Polar, Yesim; Cano, Oscar D; Kesler, Kenneth A; Loehrer, Patrick J; Badve, Sunil

    2014-12-01

    NUT midline carcinomas (NMCs) are rare tumors described predominantly in the pediatric age group. We recently reported two cases of these tumors occurring in the thymic region. In order to establish the true incidence of these tumors, we examined a large series of thymic carcinomas for morphological features of NUT tumor and further assessed the expression of NUTM1 (also known as NUT) protein by immunohistochemistry. The histological review of slides from 110 cases of thymic carcinoma was undertaken to identify carcinomas with mixed undifferentiated and squamous features that are typically associated with NUT carcinomas. The presenting symptoms, morphological spectrum of tumors and outcome data of patients with these histologies are presented. Immunohistochemistry for NUTM1 was performed on 35 cases of thymic carcinoma with available blocks (3 with these histological features and 32 without these features) to exclude the possibility of midline carcinoma. Tumors from 10 patients had features of mixed small cell undifferentiated squamous cell carcinoma (M:F, 1.5:1; age range, 22-79). These patients predominantly presented with advanced disease and had respiratory-related symptoms or chest pain; four had paraneoplastic syndromes. The squamous component in all cases was well differentiated with little or no atypia. The undifferentiated component varied in cell size and lacked characteristic features of small cell carcinoma. All but one patients developed metastases or died within 3 years of diagnosis. NUTM1 expression was seen in two of three tumors with these histological features and in none of the 32 cases without. Mixed small cell undifferentiated carcinomas share histological and immunohistochemical similarity with NMCs and have aggressive clinical course. These tumors are not uncommon and should be considered in the differential diagnosis of carcinomas in the thymic region as novel therapies might be available.

  3. Expression of heparanase in basal cell carcinoma and squamous cell carcinoma*

    Science.gov (United States)

    Pinhal, Maria Aparecida Silva; Almeida, Maria Carolina Leal; Costa, Alessandra Scorse; Theodoro, Thérèse Rachell; Serrano, Rodrigo Lorenzetti; Machado Filho, Carlos D'Apparecida Santos

    2016-01-01

    Background Heparanase is an enzyme that cleaves heparan sulfate chains. Oligosaccharides generated by heparanase induce tumor progression. Basal cell carcinoma and squamous cell carcinoma comprise types of nonmelanoma skin cancer. Objectives Evaluate the glycosaminoglycans profile and expression of heparanase in two human cell lines established in culture, immortalized skin keratinocyte (HaCaT) and squamous cell carcinoma (A431) and also investigate the expression of heparanase in basal cell carcinoma, squamous cell carcinoma and eyelid skin of individuals not affected by the disease (control). Methods Glycosaminoglycans were quantified by electrophoresis and indirect ELISA method. The heparanase expression was analyzed by quantitative RT-PCR (qRTPCR). Results The A431 strain showed significant increase in the sulfated glycosaminoglycans, increased heparanase expression and decreased hyaluronic acid, comparing to the HaCaT lineage. The mRNA expression of heparanase was significantly higher in Basal cell carcinoma and squamous cell carcinoma compared with control skin samples. It was also observed increased heparanase expression in squamous cell carcinoma compared to the Basal cell carcinoma. Conclusion The glycosaminoglycans profile, as well as heparanase expression are different between HaCaT and A431 cell lines. The increased expression of heparanase in Basal cell carcinoma and squamous cell carcinoma suggests that this enzyme could be a marker for the diagnosis of such types of non-melanoma cancers, and may be useful as a target molecule for future alternative treatment. PMID:27828631

  4. The diagnostic utility of the minimal carcinoma triple stain in breast carcinomas.

    Science.gov (United States)

    Ross, Dara S; Liu, Yi-Fang; Pipa, Jennifer; Shin, Sandra J

    2013-01-01

    Pathologists are expected to accurately diagnose increasingly smaller breast carcinomas. Correct classification (ie, lobular vs ductal or in situ vs invasive) directly affects subsequent management, especially when the focus is near a surgical margin or present in a needle core biopsy and is further challenging if the lesion is morphologically ambiguous. We assessed the diagnostic utility of a multiplex, trichromogen immunostain of 3 commonly employed antibodies (CK7, p63, and E-cadherin) developed in our laboratory to evaluate these small lesions. Of the 147 specimens containing minimal (defined as ≤3 mm in size) invasive carcinoma, 81 also contained in situ carcinoma. In each case, the Minimal Carcinoma Triple Stain was prepared with a parallel H&E-stained slide. Observations of staining characteristics in the focus of interest were recorded. The Minimal Carcinoma Triple Stain was diagnostically useful in all but 1 case. In a case of invasive lobular carcinoma in an excisional biopsy, the Minimal Carcinoma Triple Stain stained only the surrounding breast tissue (appropriately) and not the focus of interest. Also, a subset of 29 of 81 excisional biopsies had minimal invasive carcinoma located 2 mm or less from the inked surgical margin, in which in all cases the Minimal Carcinoma Triple Stain was fully interpretable despite morphologic distortion due to concomitant cautery artifact and tissue disruption in some cases. The Minimal Carcinoma Triple Stain offers an accurate and tissue-conserving method to diagnose small, morphologically problematic foci of breast carcinoma while ideally leaving more tissue for additional adjunctive studies.

  5. Monitoring the progression from intraductal carcinoma to invasive ductal carcinoma based on multiphoton microscopy

    Science.gov (United States)

    Wu, Yan; Fu, Fangmeng; Lian, Yuane; Nie, Yuting; Zhuo, Shuangmu; Wang, Chuan; Chen, Jianxin

    2015-09-01

    Intraductal carcinoma is a precancerous lesion of the breast and the immediate precursor of invasive ductal carcinoma. Multiphoton microscopy (MPM) was used to monitor the progression from intraductal carcinoma to invasive ductal carcinoma, which can improve early detection of precursor lesions and halt progression to invasive neoplastic disease. It was found that MPM has the capability to reveal the qualitative changes in features of cells, structure of basement membranes, and architecture of collagens during the development from intraductal carcinoma to invasive ductal carcinoma, as well as the quantitative alterations in nuclear area, circle length of basement membrane, and collagen density. Combined with intra-fiberoptic ductoscopy or transdermal biopsy needle, MPM has the potential to provide immediate histological diagnosis of tumor progression in the field of breast carcinoma.

  6. Carcinoma hepatocelular: parte 2. Tratamento Hepatocelular carcinoma: part 2. Therapy

    Directory of Open Access Journals (Sweden)

    Vinício Paride CONTE

    2000-04-01

    Full Text Available São revisadas as formas de tratamento, particularmente as ressecções cirúrgicas, a quimioembolização arterial e as injeções percutâneas de etanol e de ácido acético. Alguns aspectos relativos à dieta, com particular atenção à aflatoxina B1 e aos retinóides, são abordados quanto ao seu desempenho na etiopatogenia e no tratamento da afecção mais comumente encontrada nos países em desenvolvimento. Em relação ao tratamento, fazem-se considerações também referentes ao uso de octreotide, nitrosaminas e outras drogas. A coagulação intersticial a laser e as drogas de ação antivascular também mereceram abordagem sucinta. O problema do carcinoma hepatocelular precoce e a sua destruição é sinalizado de modo sumário. A quimioprevenção com o uso do interferon alfa recombinante considerado e o transplante de fígado encerram a revisão, antes dos comentários finais.Recent improvements on the therapeutical management of hepatocellular carcinoma are revised with special attention to evaluate the role of surgery for the disease. Considering that definitive surgical intervention is not feasible in most cases because of extreme tumor extension, multiplicity of tumor foci, and associated advanced liver cirrhosis at the time of diagnosis, others forms of treatment are listed, such as transcatheterarterial chemoembolization, percutaneous ethanol and acetic acid injections, and chemotherapy only to a small portion of patients with no indication for standard treatments The emerging role of retinoic acid metabolism blocking agents, was examined and may offer a significant new potential treatment for cancer, inclusive the possibility of combining other anticancer drugs with exogenous retinoids or modulation of endogenous retinoids as a real opportunity to advance our ability to treat or prevent human cancer effectively. Octreotide, nitrosamine and other drugs are analyzed and is concluded that improves survival and is a valuable

  7. Raf-1 kinase inhibitory protein expression in thyroid carcinomas.

    Science.gov (United States)

    Kim, Hyun-Soo; Kim, Gou Young; Lim, Sung-Jig; Kim, Youn Wha

    2010-12-01

    Raf-1 kinase inhibitory protein (RKIP) has been implicated in several fundamental signal transduction pathways that control cellular growth, differentiation, apoptosis and migration. RKIP is reduced in a variety of human carcinomas, but RKIP expression in thyroid carcinomas has not been analyzed at the protein level. In this study, we examined the immunohistochemical expression of RKIP in various subtypes of thyroid carcinoma. Immunostaining for RKIP was performed on 104 cases of primary thyroid carcinoma (40 papillary, 29 follicular, 11 medullary, 11 poorly differentiated, and 13 anaplastic carcinomas) and 26 cases of nodal metastatic tumor (17 papillary, 4 medullary, and 5 anaplastic carcinomas). Normal thyroid tissue and all cases of follicular, papillary, and medullary carcinomas showed uniform, strong cytoplasmic immunoreactivity for RKIP. With the exception of one case, poorly differentiated carcinomas also revealed strong RKIP expression. In contrast, RKIP expression was completely absent in all anaplastic carcinomas. The transition zone from the differentiated carcinoma component (strong RKIP expression) to the anaplastic carcinoma component (no RKIP expression) demonstrated a completely opposite pattern of RKIP immunoreactivity. This reduction of RKIP expression in anaplastic carcinoma was statistically significant (P carcinomas showed uniform, strong cytoplasmic RKIP immunoreactivity, in contrast, in metastatic anaplastic carcinomas, RKIP expression was completely absent. RKIP expression is significantly reduced in anaplastic thyroid carcinoma as compared to other subtypes of thyroid carcinoma. Further studies are necessary to elucidate the precise mechanism of RKIP action in anaplastic thyroid carcinoma.

  8. Poliposis múltiple familiar y carcinoma de colon Multiple familial polyposis and carcinoma of the colon: report of a case

    OpenAIRE

    María Isabel Villegas; Jorge Madrid; Mario Botero

    1989-01-01

    La poliposis múltiple familiar (PMF) es una enfermedad hereditaria rara pero que, frecuentemente, presenta degeneración maligna. En los pacientes con PMF la edad media de muerte por carcinoma colorrectal es 46 años. La frecuencia de éste después de efectuado el diagnóstico es de 12% en los primeros cinco años, 50% entre los 15 y los 20 años y 100% con posterioridad a los 35 años. El tratamiento del paciente con...

  9. Basal Cell Carcinoma in The Netherlands

    NARCIS (Netherlands)

    S.C. Flohil (Sophie)

    2012-01-01

    textabstractThere are many different cutaneous malignancies, but malignant melanoma, squamous cell carcinoma (SCC) and basal cell carcinoma (BCC) represent approximately 98% of all skin cancers.In literature, these three skin cancers are often divided into melanoma and nonmelanoma skin cancers (NMSC

  10. Examestane in advanced or recurrent endometrial carcinoma

    DEFF Research Database (Denmark)

    Lindemann, Kristina; Malander, Susanne; Christensen, René dePont;

    2014-01-01

    We evaluated the efficacy and safety of the aromatase inhibitor exemestane in patients with advanced, persistent or recurrent endometrial carcinoma.......We evaluated the efficacy and safety of the aromatase inhibitor exemestane in patients with advanced, persistent or recurrent endometrial carcinoma....

  11. Coexistence of papillary carcinoma and Hashimoto's thyroiditis.

    Science.gov (United States)

    Matesa-Anić, Dubravka; Matesa, Neven; Dabelić, Nina; Kusić, Zvonko

    2009-03-01

    The aim of the study was to determine the incidence of coexistence of papillary carcinoma and Hashimoto's thyroiditis in cytologic material. Cytologic findings were collected from 10508 patients that underwent ultrasound-guided fine needle aspiration cytology (FNAC) of the thyroid. Hashimoto's thyroiditis was found in 2156 (20.5%) and papillary carcinoma in 269 (2.6%) of 10508 patients with FNAC, whereas both Hashimoto's thyroiditis and papillary carcinoma were present in 42 (0.4%) patients. Among patients with FNAC diagnosis of Hashimoto's thyroiditis, the prevalence of papillary carcinoma was 1.9%. Among patients with FNAC diagnosis of papillary carcinoma, the prevalence of Hashimoto's thyroiditis was 15.6%. There was no statistically significant association between the presence of papillary carcinoma and Hashimoto's thyroiditis in patients undergoing FNAC (p=0.0522). In conclusion, in a large series of patients, the incidence of Hashimoto's thyroiditis and papillary carcinoma coexistence in cytologic material was 0.4%. There was no statistically significant relationship between Hashimoto's thyroiditis and papillary carcinoma in cytologic material.

  12. Prostatic Adenosquamous Carcinoma Metastasizing to Testis

    Directory of Open Access Journals (Sweden)

    Dilek Ertoy Baydar

    2006-01-01

    Full Text Available Adenosquamous carcinoma of the prostate is an unusual tumor with poor prognosis. Most arise after hormonal or radiotherapy of conventional prostatic adenocarcinoma. Sarcomatous transformation in them has been reported in only a few cases. Here, we present a unique case of “de novo prostatic adenosquamous carcinoma with focal sarcomatoid areas” that showed testicular metastasis, detected after scrotal orchiectomy.

  13. Breed predisposition to canine gastric carcinoma

    DEFF Research Database (Denmark)

    Seim-Wikse, Tonje; Jörundsson, Einar; Nødtvedt, Ane;

    2013-01-01

    Previous research has indicated a breed predisposition to gastric carcinoma in dogs. However, results to date are inconsistent since several studies have failed to prove such a predisposition. Better knowledge of breeds at risk could facilitate early detection of gastric carcinoma in dogs. The ai...

  14. Mucoepidermoid carcinoma of an adolescent epiglottis.

    Science.gov (United States)

    Tanaka, Hiroko; Kohno, Atsushi; Kawabata, Kazuyoshi; Sato, Yukiko

    2010-11-01

    Laryngeal mucoepidermoid carcinoma is rare and extremely rare in adolescents. We present the case of a 17-year-old girl. Magnetic resonance imaging clearly depicted the tumor, and histopathological study of the surgical specimen confirmed the diagnosis of mucoepidermoid carcinoma.

  15. Acinar Cell Carcinoma of the Pancreas

    Institute of Scientific and Technical Information of China (English)

    Hua Li; Qiang Li

    2008-01-01

    Acinar cell carcinoma of the pancreas is a rare tumor which is defined as a carcinoma that exhibits pancreatic enzyme production by neoplastic cells. This review includes re-cent developments in our understanding of the epidemiology and pathogenesis of ACC, imaging and pathological diagnosis and ap-proaches to treatment with reference to the literature.

  16. Mucinous carcinoma of breast: A diagnostic pitfall

    Directory of Open Access Journals (Sweden)

    Magdalene KF, Sapna M, Jeevaraj TR

    2014-04-01

    Full Text Available Mucinous carcinoma is also known as mucoid carcinoma, colloid carcinoma, gelatinous carcinoma and mucin producing carcinoma. They are uncommon neoplasms of the breast and the reported incidence varies from 1-4%. Most of the mucinous carcinomas occur in older age group. FNAC can aid in diagnosis of mucinous carcinoma with only a few FNAC studies documented in literature. We present here a 56year old lady with a huge ulcerated breast mass clinically diagnosed as Malignant Phyllodes tumor. An FNAC was done which showed epithelial cell clusters with mild atypia in a background of both bluish violet and pink extracellular material. Spindle shaped cells were noted in the ground substance which led to a diagnosis of a phyllodes tumor with extensive myxoid change. Mastectomy was performed and the histopathological features confirmed a diagnosis of mucinous carcinoma. The tumor had areas showing thick collagenized fibrous septae separating tumor cell clusters and also areas of fibrosis. The pitfall in FNAC diagnosis may be due to the sampling from such an area.

  17. Eyelid Squamous Cell Carcinoma in a Dog

    OpenAIRE

    Chang-hyun Song1§, Sae-kwang Ku2§, Hwan-soo Jang3, Eun-young Kye, Sung-ho Yun, Kwang-ho Jang and Young-sam Kwon*

    2012-01-01

    A 10-year-old, female, Yorkshire Terrier was presented with a left lower eyelid mass. No other abnormality was detected on affected eye in a general eye examination. The mass was surgically removed and histologically diagnosed as a squamous cell carcinoma. The advancement flap used in this case may be an appropriate therapeutic choice for eyelid squamous cell carcinoma in dogs.

  18. Adenosquamous Carcinoma of Colon and Rectum

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    @@ In colon and rectum, adenosquamous carcinoma is extremely rare. 6 patients with adenosquamous carcinoma of colon and rectum were identified by Tianjin Medical University Cancer Hospital from Jan. 1967 to Dec. 1997. 2 male and 4 female had a median age of 48 (range, 40- 60) years. All patients were treated surgically.

  19. Seven-year survival after pancreaticoduodenectomy for early recurrent renal cell carcinoma involving the duodenum A case report.

    Science.gov (United States)

    Cannistra', Marco; Ruggiero, Michele; Bonaiuto, Elisabetta; Vaccarisi, Sebastiano; Naso, Agostino; Grande, Raffaele; Nardo, Bruno

    2015-12-29

    Il cancro del rene rappresenta la 13a forma di tumore a livello mondiale e risulta incrementata, dal punto di vista epidemiologico, di circa il 2% annuo nelle ultime due decadi. Studi recenti hanno mostrato un numero complessivo di 65,150 nuovi casi di cancro renale diagnosticato nei paesi occidentali e circa 13.680 morti. Il carcinoma a cellule renali rappresenta approssimativamente il 90% di tutte le forme di cancro renale e presenta un tasso di mortalità di circa 4 soggetti ogni 100000 abitanti per anno. Il carcinoma a cellule renali ha, spesso, un particolare corteo sintomatologico caratterizzato da dolore addominale, masse addominali ed ematuria. Caratteristico è il fatto che circa il 25-30% dei pazienti, all’atto della diagnosi, presentano già metastasti a distanza; un ulteriore 30-50%, inoltre, svilupperanno metastasi nel corso della malattia, anche dopo molti anni dall’operazione chirurgica di nefrectomia radicale. Il Cancro del Rene a Cellule Chiare metastatizza in genere per via linfatica, ematogena, transperitoneale o per invasione diretta, ed i siti di metastasi più comuni sono il polmone ed i linfonodi, seguiti dalle ossa e dal fegato. Tra tutte le possibili localizzazioni ai segmenti addominali, il duodeno rappresenta la sede meno colpita: quando coinvolta, viene, in genere, invasa la regione periampollare ed il bulbo del duodeno. Tali localizzazioni danno segno di sè, spesso tardivamente, con sanguinamenti (ematemesi) o ostruzioni del tratto gastrointestinale superiore (vomito). Il nostro caso clinico descrive un carcinoma a cellule renali che si presentava, dopo soli 5 mesi dalla nefrectomia radicale destra, con sanguinamento del tratto gastrointestinale superiore e metastasi a carico del duodeno, e che è stato trattato chirurgicamente con duodenocefalopancreasectomia. L’intervento chirurgico, noto per essere altamente demolitivo ed associato ad elevata morbilità, applicato a recidiva precoce di cancro, ha garantito un ottimo risultato

  20. [Vaginal metastasis of renal carcinoma (author's transl)].

    Science.gov (United States)

    Carl, P; Marx, F J

    1977-11-01

    Four cases of vaginal metastases of renal carcinoma are reported. This is an incidence of 1.3% in 313 operated patients (from 1/1/70 to 12/31/76). A surgical treatment of primary renal carcinoma and vaginal metastasis seems to be reasonable in there cases. Since in accordance with the literature metastatic involvement of vagina and vulva seems not to be a very rare finding, the diagnostic in renal carcinoma should imply a gynecologic examination. Although in carcinoma of the left kidney metastatic spreading into the external female genitalia most probably occurs by a retrograde venous pathway (left ovarian vein), the way of dissemination in carcinoma of the right side is unclear.

  1. Breed predisposition to canine gastric carcinoma

    DEFF Research Database (Denmark)

    Seim-Wikse, Tonje; Jörundsson, Einar; Nødtvedt, Ane

    2013-01-01

    Previous research has indicated a breed predisposition to gastric carcinoma in dogs. However, results to date are inconsistent since several studies have failed to prove such a predisposition. Better knowledge of breeds at risk could facilitate early detection of gastric carcinoma in dogs. The ai...... of the study was to retrospectively investigate the proportion and possible breed predisposition to canine gastric carcinoma using the Norwegian Canine Cancer Register for calculations of proportional morbidity ratios (PMRs) for the period 1998-2009.......Previous research has indicated a breed predisposition to gastric carcinoma in dogs. However, results to date are inconsistent since several studies have failed to prove such a predisposition. Better knowledge of breeds at risk could facilitate early detection of gastric carcinoma in dogs. The aim...

  2. Peritoneal carcinoma in a male patient.

    Science.gov (United States)

    Jermann, Monika; Vogt, Peter; Pestalozzi, Bernhard C

    2003-01-01

    Peritoneal carcinoma is a rare primary tumor, described in the literature almost exclusively in women. This report describes our clinicopathological findings in a 51-year-old male patient with peritoneal carcinoma and ascites. Pathologic studies included routine histology, immunohistochemistry and electron microscopy on biopsy and autopsy tumor tissue. After chemotherapy, the patient achieved a complete remission twice, lasting for 14 months and 8 months, respectively, and died after 3 years. His clinical course was similar to that of female patients with peritoneal carcinoma or advanced ovarian cancer. Our case confirms the existence of primary peritoneal carcinoma in males. In addition, it shows that this entity responds to the same chemotherapy as used for ovarian cancer and primary peritoneal carcinoma in females.

  3. Thyroid carcinoma: immunology, irradiation, and lymphocytic infiltration

    Energy Technology Data Exchange (ETDEWEB)

    Shull, J.H.; Sharon, N.; Victor, T.A.; Scanlon, E.F.

    1979-06-01

    Patients undergoing thyroidectomies at Evanston (I11) Hospital, during a six-month period had immunological studies performed preoperatively. No differential could be found between those with carcinoma or benign pathologic findings. T- and B-cell distribution and lymphocytic response to mitogens varied widely. Quantitative immunoglobulins showed slightly increased levels of IgG in patients wih carcinoma and thyroiditis in comparison with those patients with adenomas. Antithyroglobulin antibodies were negative in all patients. Pathology slides from 107 patients with thyroid carcinoma between 1972 and 1978 at Evanston Hospital were reviewed for the presence of thyroiditis, either focal or diffuse. It was found that 50% of all carcinomas had either diffuse or focal thyroiditis. Diffuse thyroiditis was more common in patients with no history of irradiation and papillary carcinoma, and in younger age groups.

  4. Nasopharyngeal carcinoma and Dermatomyositis: a case report

    Directory of Open Access Journals (Sweden)

    P. Sfriso

    2011-09-01

    Full Text Available Nasopharyngeal carcinoma has long been reported as the predominant type of cancer associated with dermatomyositis in many several Asian countries, including Hong Kong, Singapore, and Southern-Cina. Dermatomyositis is one of the idiopathic inflammatory myopathies showing characteristic cutaneous manifestations. Reviews from the western literature have demonstrated that certain cancers, such as ovarian and breast carcinoma in women and lung and prostate carcinoma in men, are highly associated with DM relative to the general population. We report the case of a Caucasian Italian patient with nasopharyngeal carcinoma and dermatomyositis. Considering the rarity of nasopharyngeal carcinoma among whites, both the detection and the report of each new case are noteworthy in defining the geographic and ethnic distribution of this tumor.

  5. OVARIAN METASTASIS IN PATIENT WITH ENDOMETRIAL CARCINOMA

    Institute of Scientific and Technical Information of China (English)

    ZHOU Feng-zhi; CHEN Yi-nan; ZHANG Guo-nan

    2005-01-01

    Objective: To study the clinical pathological characteristics of ovarian metastasis of endometrial carcinoma and the factors affecting prognosis. Methods: Retrospective analysis was made to the clinical pathological outcome of endometrial carcinoma patients receiving surgical treatment in our hospital from January 1990 to December 2002. Results:Among the 191 cases of endometrial carcinoma patients, 17 cases (8.9%) had ovarian metastasis and young patients were more likely to have ovarian metastasis. The multiple factor analysis showed that the independent risk factors of ovarian metastasis in endometrial carcinoma included the depth of myometrial invasion, lymph node metastasis and pathological types. Conclusion: Ovarian metastasis in patients with endometrial carcinoma is associated with poor prognosis, the depth of myometrial invasion, lymph node metastasis and histologic types are independent risk factors affecting the prognosis. For young patients at early stage of the disease, it should be prudent as to whether to retain the ovary.

  6. Unusual manifestations of secondary urothelial carcinoma

    Directory of Open Access Journals (Sweden)

    Chaohui Lisa Zhao

    2016-03-01

    Full Text Available High-grade papillary urothelial carcinoma regularly invades the bladder wall, adjacent prostate, seminal vesicles, ureters, vagina, rectum, retroperitoneum, and regional lymph nodes. In advanced stages, it may disseminate to the liver, lungs, and bone marrow. On rare occasions, unusual metastatic foci like skin have been reported. The incidence of urothelial carcinoma has increased with associated rise in variants of urothelial carcinoma and unusual metastatic foci. It is imperative that urologists and pathologists are aware of the unusual variants and unusual metastatic locations to expedite the diagnostic process. Hereby we report an unusual case of secondary involvement of spinal nerve by conventional urothelial carcinoma. Also a second case of rhabdoid variant of urothelial carcinoma showing synchronous involvement of bladder and subcutaneous tissue of upper extremity is presented.

  7. Carcinoma mucoepidermoide central de la mandíbula, en un paciente con displasia fibrosa quística mandibular

    Directory of Open Access Journals (Sweden)

    Ángel Lazo- Valladares

    2006-10-01

    Full Text Available El carcinoma mucoepidermoide de glándula salival es un tumor frecuente; constituye el 15% de los tumores de dicha estructura. Sin embargo, en la mandíbula son mucho menos frecuentes (menos de 200 casos reportados y se le conoce como carcinoma mucoepidermoide central. La patogenia de este tumor intraóseo sigue siendo controversial. Al igual que otros carcinomas intaóseos primarios, puede tener varios orígenes: 1 atropamiento de glándulas mucosas retromolares en la mandíbula, 2 epitelio del seno maxilar, 3 atropamiento iatrogénico de glándula salival menor (ej. en una osteomielitis o sinusitis crónica, 4 remanentes de lámina dental, 5 remanentes de tejido de glándula salival en la mandíbula, 6 transformación neoplásica de células mucosecretoras en el epitelio de revestimiento de quistes odontogénicos. Se presenta el caso de un hombre con un carcinoma mucoepidermoide central de la mandíbula y se hace una revisión del tema.

  8. Del territorio del sujeto al emplazamiento del Común

    Directory of Open Access Journals (Sweden)

    Mariano Adrían Ferretti

    2016-01-01

    Full Text Available La construcción de lo público abarca una variedad de dinámicas que condicionan el resultado físico de los espacios donde actúan los individuos en sus necesidades de habitar, modificando su realidad desde la diferenciación y la singularización subjetiva del entorno que derivan en nuevas formas de territorialidad de lo público a partir de la dialéctica entre lo público y lo privado. Sin embargo, los resultados de tales representaciones entendidas como acciones colectivas –y por tanto comunes- no siempre explican los valores que desde lo simbólico partiendo del sujeto constituyan un estatus diferente de lo público en los procesos de territorialización. Se propone una aproximación que aborde de manera teórica cuestiones tales como: los vínculos del individuo con los procesos de acumulación material y transformación del territorio y las implicaciones que dichos fenómenos tienen en la posibilidad de constitución de un sujeto que trascendiendo al individuo sea capaz de conformar un nuevo estatus del sujeto o, dicho de otro modo, un emplazamiento del Común.

  9. Radiation myelopathy in nasopharyngeal carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Enomoto, Hiroyuki; Tsukuda, Mamoru; Kono, Hidehiro; Omata, Toshiyuki; Mochimachi, Izumi; Hasegawa, Osamu [Yokohama City Univ. (Japan). School of Medicine

    1995-08-01

    A 36-year-old woman with nasopharyngeal carcinoma developed radiation myelopathy. She was treated with radiotherapy, a total dose of about 120 Gy to the cervical spinal cord at the C1 level, chemotherapy and immunotherapy. Nine months after the final radiation therapy, she complained of a paresthesia in the distal area of the right leg. Neurological examination revealed incomplete left Brown-Sequard syndrome below the level of C5. Neurological symptoms had been progressive. The spinal MRI showed an abnormal intramedullary high intensity area enhanced by Gd-DTPA. (author).

  10. Genetic alteration in hepatocellular carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Yoo Chul; Kang, Tae Woong; Lee, Jin Oh [Korea Cancer Center Hospital of Korea Atomic Energy Research Institute, Seoul (Korea, Republic of)

    1994-12-01

    Cancer of stomach, colon and liver are a group of the most common cancer in Korea. However, results with current therapeutic modalities are still unsatisfactory. The intensive efforts have been made to understand basic pathogenesis and to find better therapeutic tools for the treatment of this miserable disease. We studied the alteration of tumor suppressor genes and oncogenes in hepatocellular carcinoma in Korea. We found that alteration of Rb gene, APC were 33 %, 13 % respectively. But alterations of oncogenes such as myc, ras and mdm2 were rarely found. Our results suggests that HBV may act as oncogenic role in hepatocarcinogenesis instead of oncogenes. 6 figs, 2 tabs. (Author).

  11. Metastatic patterns of bladder carcinoma.

    Science.gov (United States)

    Tabbara, W S; Mehio, A R

    1984-01-01

    The authors reviewed 227 new bladder cancers from two main hospitals in Beirut Lebanon. They analyzed the morphologic features of these tumours, insisting particularly on the number, the size, the site, the grade, the stage, the mode of spread and the vascular permeation. The latter four factors appear to be directly related to the metastatic spread of these tumours. The metastatic patterns are summarized, regional lymph node metastases being the main problem because of therapeutic implications (radical surgery, radiotherapy and chemotherapy). The problems of generalized carcinoma, unusual lymph node metastases and solitary distant metastases are also considered.

  12. Oncogenic viruses and hepatocellular carcinoma.

    Science.gov (United States)

    Ben Ari, Ziv; Weitzman, Ella; Safran, Michal

    2015-05-01

    About 80% of hepatocellular carcinoma (HCC) is caused by hepatitis B virus (HBV) and/or hepatitis C virus (HCV) infections especially in the setting of established cirrhosis or advanced fibrosis, making HCC prevention a major goal of antiviral therapy. HCC tumors are highly complex and heterogeneous resulting from the aberrant function of multiple molecular pathways. The roles of HCV or HBV in promoting HCC development are still either directly or indirectly are still speculative, but the evidence for both effects is compelling. In patients with chronic hepatitis viral infection, cirrhosis is not a prerequisite for tumorigenesis.

  13. Nevoid basal cell carcinoma syndrome

    Directory of Open Access Journals (Sweden)

    Kannan Karthiga

    2006-01-01

    Full Text Available Binkley and Johnson first reported this syndrome in 1951. But it was in 1960, Gorlin-Goltz established the association of basal cell epithelioma, jaw cyst and bifid ribs, a combination which is now frequently known as Gorlin-Goltz syndrome as well as Nevoid Basal Cell Carcinoma Syndrome (NBCCS. NBCCS is inherited as an autosomal dominant trait with high penetrance and variable expressivity. NBCCS is characterized by variety of cutaneous, dental, osseous, opthalmic, neurologic and sexual abnormalities. One such case of Gorlin-Goltz syndrome is reported here with good illustrations.

  14. Management of large hepatocellular carcinoma.

    Science.gov (United States)

    Amarapurkar, D N

    2004-04-01

    Hepatocellular carcinoma (HCC) is the fifth most common cancer in the world. There is increasing incidence of HCC in India. More than 70% of HCC are not suitable for curative treatment. Majority of the HCCs are large when diagnosed all over the world. There is no standard treatment for large HCCs. Different palliative treatments like arterial embolization/chemoembolization, intraarterial lipoidol chemotherapy, hormonal compounds like tamoxifene, octerotide systemic chemotherapy, immuno therapy with interferon, internal radiation with 131I or 99Yttrium. Arterial chemoembolization is the treatment of choice with proved efficacy in selected group of patients. The newer modalities and strategies need to be tried in controlled randomized trials.

  15. Localized blanching erythema in a patient with vulvar carcinoma.

    Science.gov (United States)

    Hau, Jennifer; Diaz, Lucia; Paravar, Taraneh; Chon, Susan

    2012-05-01

    Mammary-like carcinoma arising in the vulva is a rare type of vulvar malignancy. Cutaneous metastasis of vulvar carcinoma is uncommon and the majority of cases have been reported in patients with squamous cell carcinoma of the vulva. We describe a 69-year-old woman with mammary-like carcinoma of the vulva with cutaneous metastasis presenting as asymptomatic localized blanching erythema.

  16. Adenomatosis erosiva del pezón Erosive adenomatosis of the nipple

    Directory of Open Access Journals (Sweden)

    R E Achenbach

    2008-12-01

    Full Text Available Comunicamos un caso de adenomatosis erosiva del pezón con correlación clínico-patológica, patología infrecuente y que debemos conocer para evitar cirugías agresivas innecesarias, dado que se presta al diagnóstico diferencial con la enfermedad de Paget y el carcinoma de mama intraductal.A case of erosive adenomatosis of the nipple is reported with a clinicopathologic correlation, an unusual disease that we, as dermatologists, should know since the differential diagnosis with the Paget's disease and the intraductal breast carcinoma can lead to unnecessary surgery.

  17. GATA-3 and FOXA1 expression is useful to differentiate breast carcinoma from other carcinomas.

    Science.gov (United States)

    Davis, Drew G; Siddiqui, Momin T; Oprea-Ilies, Gabriela; Stevens, Keith; Osunkoya, Adeboye O; Cohen, Cynthia; Li, Xiaoxian Bill

    2016-01-01

    GATA-3, a member of the GATA family of zinc-finger DNA binding proteins, and FOXA1, a member of the forkhead transcription factor family, are both associated with estrogen receptor expression. Both GATA-3 and FOXA1 are useful markers for breast carcinoma, but their expression in the different breast cancer subtypes and other neoplasms has not been thoroughly evaluated. We examined the expression of GATA-3 and FOXA1 in estrogen receptor-positive, Her2/neu-positive, and triple-negative breast carcinomas as well as in 10 other common carcinomas, including hepatocellular, colonic, pancreatic, gastric, endometrial (endometrioid), lung, prostatic, renal cell, urothelial, and ovarian serous carcinomas. Primary and metastatic melanomas and mesotheliomas were also evaluated. GATA-3 and FOXA1 staining of estrogen receptor-positive breast carcinomas was seen in 96.6% and 96.2%, respectively. In triple-negative breast carcinomas, GATA-3 and FOXA1 staining was seen in 21.6% and 15.9%, respectively. Among the other tumors, GATA-3 staining was only seen in urothelial carcinoma (70.9%) and FOXA1 staining was only seen in prostatic (87.5%), urothelial (5.1%) carcinomas, and mesotheliomas (40.0%). In conclusion, GATA-3 and FOXA1 are excellent breast carcinoma markers; however, their utility is limited in the triple-negative subtype. The utility of FOXA1 in diagnosing prostatic carcinoma and mesothelioma warrants further investigation.

  18. Metástasis hipofisaria de carcinoma de mama debutando como diabetes insípida

    Directory of Open Access Journals (Sweden)

    Ana Arévalo

    2012-03-01

    Full Text Available Los tumores metastáticos que afectan a la glándula hipofisaria son hallazgos pocos comunes, presentándose en cerca del 1% de las cirugías hipofisarias. Los autores presentan el caso de una paciente mujer de 46 años que debuta con síntomas de diabetes insípida. Había sido tratada 3 años antes por un carcinoma ductal infiltrante de la mama derecha. Las imágenes de resonancia magnética cerebral mostraron una masa en la silla turca con extensión supraselar. La paciente fue sometida a resección tumoral vía transesfenoidal que demostró metástasis de carcinoma de mama.

  19. Historia del genoma humano

    OpenAIRE

    Castaño Valencia, Óscar

    2006-01-01

    En 1990 el Doctor Charles de Lisi presentó el proyecto del GENOMA HUMANO en asocio del Instituto de Salud Americano, el Instituto Whithead de Cambridge, la Universidad de Washingtong, el Colegio Médico de Baylor y el Instituto del Genoma Humano, de California.Estos organismos han venido actuando desde esa época, contando con la financiación de los gobiernos del Japón, Alemania, Francia, China y naturalmente del americano.En sus fases iniciales fue orientado por el Dr. James Watson quien contó...

  20. Los nudos del sistema

    OpenAIRE

    2000-01-01

    Pieza central del antiguo régimen; pacto, acuerdo o trato con algunos actores decisivos del sistema político susceptible de ser revisado; forma cultural de relaciones de poder o de intercambio; pirámide de organizaciones o estructura sectorial: ¿qué tan invisible sigue siendo, qué tan montada sigue estando la pirámide del corporativismo mexicano antes y después del 2 de julio de 2000? Este fenómeno constituye el eje central de las reflexiones del presente ensayo. En torno al mismo, se pres...

  1. Dosimetric contribution of organs of biokinetics of {sup 99m}Tc and {sup 123}I to estimate radiation doses in thyroids of children of 1 and 5 years; Contribucion dosimetrica de organos de la biocinetica del {sup 99m}Tc y {sup 123}I para estimar dosis en tiroides de ninos de 1 y 5 anos

    Energy Technology Data Exchange (ETDEWEB)

    Vasquez, M.V.; Castillo, C.E.; Abanto, D.M.; Rocha, D.; Garcia, W.H.; Marin, K., E-mail: marvva@hotmail.com [Universidad Nacional de Trujillo (UNT), Trujillo (Peru); Quispe, R. [Centro de Ciencias Aplicadas y Desarrollo Tecnologico, UNAM, Mexico (Mexico)

    2015-07-01

    The absorbed doses by thyroids during uptake studies through biokinetics of radiopharmaceuticals containing {sup 123}I (iodine) or {sup 99m}Tc (pertechnetate) are estimated. Using the MIRD scheme and the representation of Cristy-Eckerman for thyroids in children of 1 and 5 years, the objective of the study was to determine whether the dosimetric biokinetic contributions of the organs of {sup 123}I (iodide) and {sup 99m}Tc (pertechnetate) biokinetic are significant in the estimated of the absorbed dose for thyroid uptake studies.

  2. Dosimetric evaluation in organs of the Tc{sup 99m}, I{sup 123} bio-kinetics to estimate dose in thyroid children 1 and 5 years; Evaluacion dosimetrica en organos de la biocinetica del Tc{sup 99m}, I{sup 123} para estimar dosis en tiroides ninos 1 y 5 anos

    Energy Technology Data Exchange (ETDEWEB)

    Vasquez, A. M.; Quispe, R.; Vasquez, D. J.; Rocha, M. D.; Morales, N. R.; Marin, R. K. [Universidad Nacional de Trujillo, Av. Juan Pablo II s/n, Ciudad Universitaria, Trujillo (Peru); Zelada, A. L., E-mail: marvva@hotmail.com [Universidad Cesar Vallejo, Grupo de Fisica Medica, Av. Larco s/n, Trujillo (Peru)

    2012-10-15

    Using the formalism MIRD and the representation of Cristy-Eckerman for the thyroid in children of 1 and 5 years, is demonstrated that the dosimetric contribution of the organs of I{sup 123} (iodure) bio-kinetics is not significant in the dose estimate. The total dose absorbed by the gland is its auto dose. The dosimetric contribution of the organs source of the Tc{sup 99m} (pertechnetate) bio-kinetics in the gland is significant in the dose estimate like to be ignored. The reported results for the iodure are not significantly different to the found for the Marinelli scheme (auto-dose) for thyroid represented by a sphere of 1,78 and 3,45 grams. (Author)

  3. M-plastia doble en paciente con carcinoma basoescamoso. Presentación de un caso

    Directory of Open Access Journals (Sweden)

    Carlos Manuel Collado Hernández

    2012-12-01

    Full Text Available El cáncer de piel constituye el tumor maligno más frecuente en humanos y se ha incremento en los últimos años. Se presenta el caso de una paciente de 86 años de edad que acudió a la consulta multidisciplinaria de tumores del Hospital Universitario Celia Sánchez Manduley de Manzanillo, por presentar una lesión tumoral en la frente desde hacía tres años, de crecimiento lento y acompañando de dolor ocasional espontáneo. La lesión nodular, localizada a 3 cm del límite de implantación del cabello en su parte frontal izquierda. Con la sospecha de un carcinoma basal, se utilizó como tratamiento único la técnica de m-plastia doble, poco usual en este tipo de lesión, y en esa localización. El informe histológico indicó que se trataba de un carcinoma basoescamoso. La evolución postquirúrgica fue satisfactoria.

  4. Carcinoma ameloblástico de la mandíbula

    Directory of Open Access Journals (Sweden)

    Angel Lazo- Valladares

    2005-07-01

    Full Text Available El concepto de carcinoma intraóseo primario es exclusivo de la mandíbula y maxila, ya que se origina de componentes ondontogénicos. El carcinoma ameloblástico es una lesión sumamente infrecuente, que puede aparecer de novo o asociado a una lesión previa, como un quiste odontogénico o un ameloblastoma. El diagnóstico se establece cuando se encuentran elementos histológicos de ameloblastoma, que alternan con áreas de epitelio histológicamente malignas, con independencia de que existan metástasis. Esto lo diferencia del también infrecuente ameloblastoma metastático, en el cual se encuentra un ameloblastoma con histología benigna, que inesperadamente mestatiza. La importancia de esta diferenciación radica en el pronóstico, ya que el carcinoma ameloblástico es una lesión muy agresiva, de crecimiento rápido, que tiende a provocar un gran efecto de masa, que tiene alta tasa de recidiva y mortalidad, contrario al ameloblastoma metastásico, caso en que el paciente puede sobrevivir muchos años tras la aparición de la metástasis. Con el presente caso se ilustran algunos aspectos importantes sobre el comportamiento biológico del ameloblastoma, como su elevado potencial de recurrencia, el daño que puede provocar por extensión directa y ciertas complicaciones metabólicas que, aunque infrecuentes, puede asociar. Además, permite diferenciar clínica e histológicamente la rara transformación maligna que este puede presentar, lo mismo que la importancia de la clasificación adecuada de los carcinomas odontogénicos

  5. Carcinoma de pulmón de origen laboral Occupational lung cancer

    Directory of Open Access Journals (Sweden)

    M. Pérez de las Casas

    2005-01-01

    Full Text Available El carcinoma broncopulmonar es la primera causa de muerte por cáncer en varones, siendo su principal causa el consumo de tabaco; no obstante, diversos estudios han atribuido un tanto por ciento no despreciable de su etiología a la exposición laboral a agentes considerados cancerígenos como el asbesto, con el que tiene relación la mitad de los casos de cáncer pulmonar de origen laboral. Dada la baja supervivencia de esta patología, son de suma importancia las medidas de prevención encaminadas a identificar los agentes cancerígenos y a la disminución de su exposición. Puesto que la presentación clínica no difiere del carcinoma relacionado con el tabaco, un alto grado de sospecha, basado en una cuidadosa historia laboral, es fundamental para su diagnóstico. Debido el efecto sinérgico del tabaco, medidas destinadas a disminuir su consumo, continúan siendo de suma importancia en la población expuesta.Bronchopulmonary carcinoma is the first cause of death by cancer in males, its principal cause being tobacco consumption. Nonetheless, different studies have attributed a certain, by no means negligible percent of its aetiology to the occupational exposure to agents considered carcinogenic such as asbestos, with which half of the cases of occupational lung cancer are related. Given the low survival rate of this pathology, preventive measures directed at identifying carcinogenic agents and reducing exposure to them are extremely important. Given that the clinical presentation does not differ from tobacco-related carcinoma, a high level of suspicion, based on a meticulous occupational history, is fundamental to its diagnosis. Due to the synergic effect of tobacco, measures aimed at reducing its consumption continue to be extremely important in the exposed population.

  6. Surgical Treatment for Hepatocellular Carcinoma

    Directory of Open Access Journals (Sweden)

    Ahmad A Madkhali

    2015-01-01

    Full Text Available Hepatocellular carcinoma (HCC is an epithelial tumor derived from hepatocytes; it accounts for 80% of all primary liver cancers and ranks globally as the fourth leading cause of cancer-related deaths. HCC treatment is a multidisciplinary and a multimodal task, with surgery in the form of liver resection and liver transplantation (LT representing the only potentially curative modality. However, there are variable opinions and discussions about applying these surgical options and using other supporting treatments. This article is a narrative review that includes articles published from 1984 to 2013 located by searching scientific databases such as PubMed, SCOPUS, and Elsevier, with the main keyword of hepatocellular carcinoma in addition to other keywords such as liver transplantation, liver resection, transarterial chemoembolization, portal vein embolization, bridging therapy, and downstaging. In this review, we focus mainly on the surgical treatment options offered for HCC, in order to illustrate the current relevant data available in the literature to help in applying these surgical options and to use other supporting treatment modalities when appropriate.

  7. HPV Carcinomas in Immunocompromised Patients

    Directory of Open Access Journals (Sweden)

    Nicole M. Reusser

    2015-01-01

    Full Text Available Human papillomavirus (HPV infection is the most common sexually transmitted disease worldwide and can result in pre-malignancies or overt malignancies of the skin and mucosal surfaces. HPV-related illnesses are an important personal and public health problem causing physical, mental, sexual and financial detriments. Moreover, this set of malignancies severely affects the immunosuppressed population, particularly HIV-positive patients and organ-transplant recipients. There is growing incidence of HPV-associated anogenital malignancies as well as a decrease in the average age of affected patients, likely related to the rising number of high-risk individuals. Squamous cell carcinoma is the most common type of HPV-related malignancy. Current treatment options for HPV infection and subsequent disease manifestations include imiquimod, retinoids, intralesional bleomycin, and cidofovir; however, primary prevention with HPV vaccination remains the most effective strategy. This review will discuss anogenital lesions in immunocompromised patients, cutaneous warts at nongenital sites, the association of HPV with skin cancer in immunocompromised patients, warts and carcinomas in organ-transplant patients, HIV-positive patients with HPV infections, and the management of cutaneous disease in the immunocompromised patient.

  8. Estrogen receptors in breast carcinoma.

    Science.gov (United States)

    Huaman, A

    1979-11-01

    On the basis of estrogen receptor assays, breast carcinomas are presently classified as estrogen-dependent tumors, which respond to endocrine therapy, and autonomous tumors, for which endocrine therapy is useless. This paper presents a short review of the biochemical principles of estrogen dependence, the procedures used to determine estrogen receptors, and the clinical applications of the findings of these assay procedures. Biobhemically, the estroogen dependence of normal breast cells is explained as a biochemical reaction occurring between the circulating estradiol and the breast cell, which occurs in 3 steps: 1) circulating estradiol penetrates the cellular membrane by passive diffusion, followed by 2) combining of estradiol with the estrogen-binding protein (estrophilin) and formation of an estrogen receptor complex which undergoes activation and translocation into the nucleus, to result in 3) the activated steroid receptor which combines with the nuclear charomatin and stimulates ribonucleic acid synthesis for the formation of estradiol binding proteins or estradiol receptors. The cytosol method of Wittliff et al. is described in brief and entails radioactive competitive analysis; the other available laboratory procedure is immunofluorescence of tumor sections. Quantification of estrogen receptor content can be used clinically to decide on ablative endocrine therapy, to determine the effectiveness of anti-estrogen administration, to determine the primary site of metastatic carcinoma, and as a screenng device.

  9. Sarcomatoid carcinoma of the prostate.

    Science.gov (United States)

    Açıkgöz, Onur; Gazel, Eymen; Zengin, Neslihan İnci; Kasap, Yusuf; Camtosun, Ahmet; Yazıcıoğlu, Ahmet Hamdi

    2013-01-01

    Sarcomatoid carcinoma of the prostate is among the rarest malignant neoplasm types and has been well known for its aggressive clinical course. Patient was admitted with the symptoms of lower urinary tract. Transurethral resection of prostate (TUR-P) was carried out. Revealing Gleason 5 + 3 = 8 prostate adenocarcinoma in TUR-P material. Thereby, a Radical Prostatectomy procedure was planned. In operation, frozen examination revealed adenocarcinoma metastasis to the obturator lymph node. The operation was terminated. In the postoperative 3rd month, the patient was re-admitted with acute urinary system symptoms. A cystoscopy performed and complete resection of the mass was performed. The pathological examination reported that the tumor was compatible with undifferentiated adenocarcinoma owing to presence of poorly differentiated tumoral cells and detection of adenocarcinoma in a relatively small (<1%) focus. 4 month after the operation, the patient underwent another cyctoscopic examination which revealed the prostatic lounge and most of the bladder lumen to be filled with tumoral tissue. The tumoral tissues was resected incompletely. This material was diagnosed to be "Sarcomatoid Malignant Tumor" upon the new evidences of progressive dedifferentiation and predominant sarcomatoid appearance, compared with the former TUR-P materials. Subsequent PET-CT scan depicted multiple metastasis. The patient was referred to oncology department. In conclusion, sarcomatoid carcinoma is a malignant variant that brings along diagnostic and treatment difficulties.

  10. Sarcomatoid Carcinoma of the Prostate

    Directory of Open Access Journals (Sweden)

    Onur Açıkgöz

    2013-01-01

    Full Text Available Sarcomatoid carcinoma of the prostate is among the rarest malignant neoplasm types and has been well known for its aggressive clinical course. Patient was admitted with the symptoms of lower urinary tract. Transurethral resection of prostate (TUR-P was carried out. Revealing Gleason 5 + 3 = 8 prostate adenocarcinoma in TUR-P material. Thereby, a Radical Prostatectomy procedure was planned. In operation, frozen examination revealed adenocarcinoma metastasis to the obturator lymph node. The operation was terminated. In the postoperative 3rd month, the patient was re-admitted with acute urinary system symptoms. A cystoscopy performed and complete resection of the mass was performed. The pathological examination reported that the tumor was compatible with undifferentiated adenocarcinoma owing to presence of poorly differentiated tumoral cells and detection of adenocarcinoma in a relatively small (1% focus. 4 month after the operation, the patient underwent another cyctoscopic examination which revealed the prostatic lounge and most of the bladder lumen to be filled with tumoral tissue. The tumoral tissues was resected incompletely. This material was diagnosed to be “Sarcomatoid Malignant Tumor” upon the new evidences of progressive dedifferentiation and predominant sarcomatoid appearance, compared with the former TUR-P materials. Subsequent PET-CT scan depicted multiple metastasis. The patient was referred to oncology department. In conclusion, sarcomatoid carcinoma is a malignant variant that brings along diagnostic and treatment difficulties.

  11. Profundidad tumoral en el carcinoma epidermoide lingual: Repercusiones diagnósticas Tumor depth in squamous cell carcinoma of the tongue: Diagnostic repercussions

    Directory of Open Access Journals (Sweden)

    J.D. Sánchez López

    2007-02-01

    Full Text Available Objetivo. Determinar el grado de concordancia entre la valoración clínica (cT e histopatológica (pT del tamaño del carcinoma epidermoide lingual en relación a la introducción del parámetro de profundidad tumoral (ppT. Material y métodos. 1 Diseño: Estudio retrospectivo de base hospitalaria constituido por 60 pacientes evaluados desde Enero de 1990 a Julio de 1997 (Seguimiento mínimo de 8 años. 2 Variables: Filiación del paciente, parámetros clínicos y parámetros histopatológicos. 3 Método estadístico: Correlación mediante el Indice Kappa (pObjective. To determine the degree of concordance between clinical (cT and histopathological (pT values for tumor size in squamous cell carcinoma when introducing "tumor thickness" as a diagnostic marker. Materials and methods. 1 Design: A retrospective hospital study of 60 patients evaluated between January 1990 and July 1997 was carried out. 2 Variables: Patient dates, clinical and histopathological parameters. 3 Statistics: Correlation assessment by Kappa Index (p<0.05. Results. After the use of "tumor thickness" as a diagnostic indicator the following can be appreciated: • Correlation between cT and ppT: Reduction in the degree of concordance between cT and pT in relation to ppT (23.3 /12.5%. • Correlation between pT and ppT: 100% concordance between pT4 and ppT4. All tumors diagnosed as pT3 were changed to ppT4. Conclusion. When the parameter "tumor thickness" is used, a change can be appreciated in the early stage clinical and histopathological diagnosis, as tumor size (T becomes advanced.

  12. Gene Expression Patterns in Ovarian Carcinomas

    Science.gov (United States)

    Schaner, Marci E.; Ross, Douglas T.; Ciaravino, Giuseppe; Sørlie, Therese; Troyanskaya, Olga; Diehn, Maximilian; Wang, Yan C.; Duran, George E.; Sikic, Thomas L.; Caldeira, Sandra; Skomedal, Hanne; Tu, I-Ping; Hernandez-Boussard, Tina; Johnson, Steven W.; O'Dwyer, Peter J.; Fero, Michael J.; Kristensen, Gunnar B.; Børresen-Dale, Anne-Lise; Hastie, Trevor; Tibshirani, Robert; van de Rijn, Matt; Teng, Nelson N.; Longacre, Teri A.; Botstein, David; Brown, Patrick O.; Sikic, Branimir I.

    2003-01-01

    We used DNA microarrays to characterize the global gene expression patterns in surface epithelial cancers of the ovary. We identified groups of genes that distinguished the clear cell subtype from other ovarian carcinomas, grade I and II from grade III serous papillary carcinomas, and ovarian from breast carcinomas. Six clear cell carcinomas were distinguished from 36 other ovarian carcinomas (predominantly serous papillary) based on their gene expression patterns. The differences may yield insights into the worse prognosis and therapeutic resistance associated with clear cell carcinomas. A comparison of the gene expression patterns in the ovarian cancers to published data of gene expression in breast cancers revealed a large number of differentially expressed genes. We identified a group of 62 genes that correctly classified all 125 breast and ovarian cancer specimens. Among the best discriminators more highly expressed in the ovarian carcinomas were PAX8 (paired box gene 8), mesothelin, and ephrin-B1 (EFNB1). Although estrogen receptor was expressed in both the ovarian and breast cancers, genes that are coregulated with the estrogen receptor in breast cancers, including GATA-3, LIV-1, and X-box binding protein 1, did not show a similar pattern of coexpression in the ovarian cancers. PMID:12960427

  13. BRAIN METASTASES FROM CARCINOMA OF UTERINE CERVIX

    Institute of Scientific and Technical Information of China (English)

    张国楠; 徐世强; 石宇; 樊英; 吴艳丽; 殷红; 余健; 陈毅男

    2002-01-01

    Objective: To study the mechanism, clinical characteristics, therapy regimens, and survival of cervical carcinoma metastases to the brain. Methods: We retrospectively analyzed 11 patients with brain metastases from cervical carcinoma. Results: Two cases were at stage lb, two at IIa, and seven at IIIb, respectively. Histologically, they were squamous cell carcinoma (6 cases), adeno-squamous carcinoma (2 cases), small cell carcinoma (2 cases), or adenocarcinoma (1 cases), poorly differentiated. Eight were accompanied with lung, liver, and bone metastases disease and three had no any other systemic metastases at the time of the brain metastases diagnosis. Two had controlled, and other nine were uncontrolled or progressive primary disease. The median interval from the diagnosis of the primary carcinoma to the detection of brain lesion was 14.6 months. Headache was the most common symptom of brain metastases. Eight of 11 patients developed multiple lesions and other 3 cases had a solitary lesion in brain. The patients were treated by combination of surgery and whole brain radiation therapy (WBRT) (3 cases), stereotactic radiosurgery (SRS) (3 cases), or WBRT (5 cases). The patients had a median survival of 6.6 months. Conclusion: Brain metastases are not always a late complication of cervical carcinoma. The development of the metastases is related to pathological type, poorly differentiation, and advanced stage. Surgery and SRS arc the appropriate therapy regimen for these patients.

  14. Resected Pleomorphic Carcinoma of the Gallbladder

    Directory of Open Access Journals (Sweden)

    Masanari Shimada

    2012-12-01

    Full Text Available Pleomorphic carcinoma is a rare lesion and the literature contains few reports of pleomorphic carcinoma of the gallbladder. The present study reports a rare case of primary pleomorphic carcinoma of the gallbladder for which we were able to perform curative surgery. A 77-year-old woman with dementia developed nausea and anorexia, and computed tomography demonstrated irregular thickening of the gallbladder wall. Drip infusion cholangiography and endoscopic retrograde cholangiopancreatography revealed no stenosis of the common and intrahepatic bile ducts. We suspected carcinoma of the gallbladder without lymph node metastasis and invasion to the common bile duct. We guessed it to be resectable and performed open laparotomy. At operation, the fundus of the gallbladder was adherent to the transverse colon, but no lymph node and distant metastases were detected. Therefore, we performed curative cholecystectomy with partial colectomy. Histopathology and immunostaining showed coexistence of an adenocarcinoma, squamous cell carcinoma and sarcomatous tumor of spindle-shaped cell, as well as transition zones between these tumors. We diagnosed stage I pleomorphic carcinoma of the gallbladder. No recurrence has been observed for one and a half years. The biological behavior of pleomorphic carcinoma of the gallbladder remains unknown. It will be necessary to accumulate more case reports of this tumor in order to define diagnostic criteria.

  15. Intraoperative endoscopy in obstructive hypopharyngeal carcinoma

    Institute of Scientific and Technical Information of China (English)

    Predrag Pesko; Djordjije Saranovic; Vera Todorovic; Milos Bjelovic; Predrag Sabljak; Dejan Stojakov; Ebrahimi Keramatollah; Dejan Velickovic; Bratislav Spica; Branka Nenadic; Aleksandra Djuric-Stefanovic

    2006-01-01

    AIM: To demonstrate the necessity of intraoperative endoscopy in the diagnosis of secondary primary tumors of the upper digestive tract in patients with obstructive hypopharyngeal carcinoma.METHODS: Thirty-one patients with hypopharyngeal squamous cell carcinoma had been operated, with radical intent, at our Institution in the period between 1978 and 2004. Due to obstructive tumor mass, in 7(22.6%) patients, preoperative endoscopic evaluation of the esophagus and stomach could not be performed. In those patients, intraoperative endoscopy, made through an incision in the cervical esophagus, was standard diagnostic method for examination of the esophagus and stomach.RESULTS: We found synchronous foregut carcinomas in 3 patients (9.7%). In two patients, synchronous carcinomas had been detected during preoperative endoscopic evaluation, and in one (with obstructive carcinoma) using intraoperative endoscopy. In this case, preoperative barium swallow and CT scan did not reveal the existence of second primary tumor within esophagus, despite the fact that small, but T2 carcinoma, was present.CONCLUSION: It is reasonable to use intraoperative endoscopy as a selective screening test in patients with obstructive hypopharyngeal carcinoma.

  16. An Iranian male with syringoid eccrine carcinoma misdiagnosed as basal cell carcinoma: a case report

    Institute of Scientific and Technical Information of China (English)

    Binesh Fariba; Akhavan Ali; Kafaie Parichehr; Navabii Hossein

    2012-01-01

    Syringoid carcinoma (syringoid eccrine carcinoma, or eccrine epithelioma) is a rare cutaneous tumor with some controversy regarding its correct definition. This tumor shows a slow growth and has often been for many years, some decades before diagnosis. It may also be difficult to differentiate from its benign counterpart (syringoma) or other adnexal carcinoma and cutaneous metastasis. There have been limited case reports of syringoid carcinoma in foreign literatures but none from Iran. Here we report a case of syringoid carcinoma in a 52 year-old Iranian man. Syringoid eccrine carcinoma is a very rare and uncommon diagnosed tumor thought to be derived from eccrine sweat apparatus. It locally invasive, destructive and often shows recurrence. It may also be difficult to differentiate from metastatic adenocarcinoma.

  17. miR-215 overexpression distinguishes ampullary carcinomas from pancreatic carcinomas.

    Science.gov (United States)

    Choi, Dong Ho; Park, Sang Jae; Kim, Hark Kyun

    2015-06-01

    Distinguishing ampullary carcinoma from pancreatic carcinoma is important because of their different prognoses. microRNAs are differentially expressed according to the tissue of origin. However, there is rare research on the differential diagnosis between the two types of cancers by microRNA in periampullary cancers. The present study was undertaken to compare microRNA profiles between ampullary and pancreatic carcinomas using microarrays. miR-215 was most significantly overexpressed in ampullary carcinomas; whereas the expressions of miR-134 and miR-214 were significantly lower in ampullary carcinomas than in pancreatic carcinomas. When these discriminatory microRNAs were applied to liver metastases, they were correctly predicted for the tissue of origin. Although this study is limited by small sample size, striking difference in microRNA expression and concordant expression of discriminating microRNAs in primary tumors and metastases suggest that these novel discriminatory microRNAs warrant future validation.

  18. Nonalcoholic steatohepatitis and hepatocellular carcinoma: Brazilian survey

    Directory of Open Access Journals (Sweden)

    Helma P. Cotrim

    2016-05-01

    Full Text Available OBJECTIVE: The majority of cases of hepatocellular carcinoma have been reported in individuals with cirrhosis due to chronic viral hepatitis and alcoholism, but recently, the prevalence has become increasingly related to nonalcoholic steatohepatitis around the world. The study aimed to evaluate the clinical and histophatological characteristics of hepatocellular carcinoma in Brazilians' patients with nonalcoholic steatohepatitis at the present time. METHODS: Members of the Brazilian Society of Hepatology were invited to complete a survey regarding patients with hepatocellular carcinoma related to nonalcoholic steatohepatitis. Patients with a history of alcohol intake (>20 g/day and other liver diseases were excluded. Hepatocellular carcinoma diagnosis was performed by liver biopsy or imaging methods according to the American Association for the Study of Liver Diseases’ 2011 guidelines. RESULTS: The survey included 110 patients with a diagnosis of hepatocellular carcinoma and nonalcoholic fatty liver disease from nine hepatology units in six Brazilian states (Bahia, Minas Gerais, Rio de Janeiro, São Paulo, Paraná and Rio Grande do Sul. The mean age was 67±11 years old, and 65.5% were male. Obesity was observed in 52.7% of the cases; diabetes, in 73.6%; dyslipidemia, in 41.0%; arterial hypertension, in 60%; and metabolic syndrome, in 57.2%. Steatohepatitis without fibrosis was observed in 3.8% of cases; steatohepatitis with fibrosis (grades 1-3, in 27%; and cirrhosis, in 61.5%. Histological diagnosis of hepatocellular carcinoma was performed in 47.2% of the patients, with hepatocellular carcinoma without cirrhosis accounting for 7.7%. In total, 58 patients with cirrhosis had their diagnosis by ultrasound confirmed by computed tomography or magnetic resonance imaging. Of these, 55% had 1 nodule; 17%, 2 nodules; and 28%, ≥3 nodules. CONCLUSIONS: Nonalcoholic steatohepatitis is a relevant risk factor associated with hepatocellular carcinoma in

  19. Incidence of ascariasis in gastric carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jong Woo; Rhee, Hak Song; Bahk, Yong Whee [St Mary' s Hospital Catholic Medical College, Seoul (Korea, Republic of)

    1972-09-15

    Prompted by the finding that the radiological incidence of small bowel ascariasis in the patient with gastric carcinoma was unexpectedly lower than the incidence in the normal population, a clinical study was performed to investigate possible relationship between gastric carcinoma and intestinal ascariasis. As a preliminary survey, we reviewed the radiological incidence of ascariasis in a total of 2,446 cases of upper GI series performed at the Department of Radiology, St Mary's Hospital Catholic Medical College. These included 1,573 normal subjects, 146 gastric carcinoma patients, 100 benign gastric ulcer and 249 duodenal ulcer patients and 378 other upper GI diseases. Following the preliminary study, a more accurate parasitologic study was conducted in another 578 normal subjects and 51 gastric carcinoma patients. The radiological incidences of ascaiasis in normal subjects and gastric carcinoma patients were 15.1% and 28.1%, respectively. The incidence of overall helminthiasis including ascaris lumbricoides, trichocephalus trichiurus and trichostrongyloides orientalis in normal subjects of the present series was 73.5%. This figure is virtually the same with 69.1% of the general population incidence reported by Kim, et al. (1971), but the incidence in gastric carcinoma patients was 94.1%. The high incidence pattern of overall helminthiasis in gastric carcinoma patients is, however, reversed as for as ascariasis is concerned. Thus, the incidence of ascariasis of gastric carcinoma patients was much lower than that of normal subjects (9.8% vs 19.4%). From the present observation, it is postulated that there can be some possible antagonistic relationship between evolution of gastric carcinoma and small bowel infestation of ascaris lumbricoides.

  20. Prevalence of Glomerulopathies in Canine Mammary Carcinoma

    Science.gov (United States)

    2016-01-01

    The incidence and prevalence of paraneoplastic glomerulopathy, especially associated with carcinoma, are a matter of debate and the causal link between cancer and glomerular diseases remains unclear. The aim of this study was to evaluate renal biopsies of selected bitches with spontaneous mammary gland carcinoma. We hypothesized that dogs with mammary carcinomas would show histologic evidence of glomerular pathology. A prospective study was performed in dogs with naturally occurring mammary carcinoma that were undergoing tumor resection and ovariohysterectomy. We evaluated renal biopsies of 32 bitches with spontaneous mammary gland carcinoma and 11 control dogs without mammary gland neoplasia. Samples were obtained from the left kidney and the biopsy material was divided for light microscopy (LM), immunofluorescence (IF) and transmission electron microscopy (TEM). Light microscopy abnormalities were identified in 78.1% of dogs with mammary carcinoma (n = 25) and in none of the dogs in the control group. Focal glomerular mesangial matrix expansion was the most common alteration (n = 15, 60.0%), but mesangial cell proliferation (n = 9, 36.0%) and focal segmental glomerulosclerosis (n = 9, 36.0%), synechiae (n = 7, 28.0%), and globally sclerotic glomeruli (n = 6, 24.0%) were also frequent in dogs with malignancy. Immunofluorescence microscopy revealed strong IgM staining was demonstrated in 64.3% (n = 18) of carcinoma dogs. Transmission electron microscopy from dogs with carcinoma revealed slight changes, the most frequent of which was faint sub-endothelial and mesangial deposits of electron-dense material (78%). Mesangial cell interpositioning and segmental effacement of podocyte foot processes were identified in some specimens (45%). Changes in the glomerulus and proteinuria are common in dogs with naturally occurring mammary carcinoma and this condition appears to provide an excellent large animal model for cancer-associated glomerulopathy in humans. PMID:27764139

  1. Carcinoma verrucoso de pênis

    OpenAIRE

    Saul Gun; Alberto Ramos Argento; Brunno Cezar Framil Sanches; Felipe Trentin Neves; Thiago Correa Tambelli; Fernando Eduardo Paulatti Frederico; Alexis Iury Framil Sanches

    2010-01-01

    O carcinoma verrucoso é uma variante menos agressiva do carcinoma de pênis que raramente apresenta metástase linfonodal. Neste tipo de tumor, o tratamento cirúrgico constitui a principal forma de controle da doença. O objetivo do trabalho é relatar um caso de carcinoma verrucoso de pênis que foi submetido a tratamento operatório através de penectomia total em um paciente com 44 anos apresentando lesão ulcerada em região dorsal de pênis. Progrediu o quadro com infecção local e linfadenomegalia...

  2. Primary intraosseous carcinoma of the mandible

    Energy Technology Data Exchange (ETDEWEB)

    Hwang, Eui Hwan; Choi, Yong Suk; Lee, Sang Rae [Kyunghee University College of Medicine, Seoul (Korea, Republic of)

    2005-12-15

    A very uncommon tumor, primary intraosseous carcinoma (PIOC), is a carcinoma arising within the jaw. The definite diagnosis of PIOC is often difficult as the lesion must be distinguished from alveolar carcinoma that may invade the bone from the overlying soft tissues or from the tumors that have metastasized to the jaw from a distant site. A case of PIOC arising in the mandible is presented. The clinical, radiologic, and histologic features are described. This rare lesion should be considered in any differential diagnosis of a jaw radiolucency.

  3. Neglected giant scalp Basal cell carcinoma

    DEFF Research Database (Denmark)

    Larsen, Anne Kristine; El-Charnoubi, Waseem-Asim Ghulam; Gehl, Julie;

    2014-01-01

    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...

  4. Adenoid basal cell carcinoma and its mimics

    Directory of Open Access Journals (Sweden)

    Sujata Jetley

    2013-01-01

    Full Text Available Basal cell carcinoma (BCC is the most common malignant tumor of skin. The most common site (80% is head and neck. BCC exhibits a varied morphology such as adenoid, keratotic, sebaceous, basosquamous, apocrine, eccrine or fibroepithelial. Tumors with a similar histopathological picture are cutaneous adenoid cystic carcinoma and primary cutaneous cribriform apocrine carcinoma. Immunohistochemistry, along with clinical findings, acts as an adjunct in reaching an accurate diagnosis. Here, we present an interesting case of adenoid BCC in a 55-year-old man.

  5. Cutaneous metastasis from carcinoma of tonsil.

    Directory of Open Access Journals (Sweden)

    Dasmajumdar S

    2002-01-01

    Full Text Available Hematogenous spread from carcinoma of tonsil is an uncommon event and skin is an extremely rare site of metastasis. We encountered a 40-year-old male patient who initially presented with carcinoma of the tonsil with T3N2cMO disease and treated by curative radiotherapy. After about 2 years, he developed a skin lesion in the periorbital region which on cytological examination turned out to be metastasis from tonsillar carcinoma. The present paper describes this rare case report along with a brief review of the literature.

  6. ACANTHOLYTIC SQUAMOUS CELL CARCINOMA OF PREPUCE

    Directory of Open Access Journals (Sweden)

    Mamina

    2014-03-01

    Full Text Available An uncircumcised 65 year male, with history of phimosis presented with retention of urine and ulceration and bleeding in the prepuce. Circumcision was done under local anesthesia which revealed an ulcero-proliferative growth involving the prepuce and glans. The prepucial skin was sent for histopathological examination. The diagnosis was histopathologically confirmed as Acantholytic Squamous Cell Carcinoma. Acantholytic squamous cell carcinoma is a highly malignant, unusual variant of squamous cell carcinoma invading deeper anatomic structures and is associated with a higher incidence of regional metastasis and mortality.

  7. Epithelial-Mesenchymal Transition in Pancreatic Carcinoma

    Directory of Open Access Journals (Sweden)

    Thomas Wirth

    2010-12-01

    Full Text Available Pancreatic carcinoma is the fourth-leading cause of cancer death and is characterized by early invasion and metastasis. The developmental program of epithelial-mesenchymal transition (EMT is of potential importance for this rapid tumor progression. During EMT, tumor cells lose their epithelial characteristics and gain properties of mesenchymal cells, such as enhanced motility and invasive features. This review will discuss recent findings pertinent to EMT in pancreatic carcinoma. Evidence for and molecular characteristics of EMT in pancreatic carcinoma will be outlined, as well as the connection of EMT to related topics, e.g., cancer stem cells and drug resistance.

  8. Cerrobend shielding stents for buccal carcinoma patients

    Directory of Open Access Journals (Sweden)

    Karma Yangchen

    2016-01-01

    Full Text Available Buccal carcinoma is one of the most common oral malignant neoplasms, especially in the South Asian region. Radiotherapy, which plays a significant role in the treatment of this carcinoma, has severe adverse effects. Different types of prosthesis may be constructed to protect healthy tissues from the adverse effects of treatment and concentrate radiation in the region of the tumor mass. However, the technique for fabrication of shielding stent with Lipowitz's alloy (cerrobend/Wood's alloy has not been well documented. This article describes detailed technique for fabrication of such a stent for unilateral buccal carcinoma patients to spare the unaffected oral cavity from potential harmful effects associated with radiotherapy.

  9. Metastatic medullary thyroid carcinoma: A case report

    Directory of Open Access Journals (Sweden)

    Mitra Niafar

    2011-01-01

    Full Text Available Medullary thyroid carcinoma accounts for 4% of thyroid carcinoma and originates from parafollicular cells, secreting calcitonin and carcinoembryonic antigen (CEA. Conventional radiographic modalities such as Computerized Tomography (CT, Magnetic Resonance Imaging (MRI, and Ultrasonography (U/S, are used for detecting recurrences following total thyroidectomy. However, metastatic disease frequently escapes detection by the above modalities, even when its presence is suggested by persistently elevated serum calcitonin levels. In this paper, we report a case of medullary thyroid carcinoma in a 40 year-old woman who had whole body octreotide scintigraphy to evaluate and detect the origin of calcitonin and CEA secretion.

  10. Landscape of Genomic Alterations in Cervical Carcinomas

    OpenAIRE

    2013-01-01

    Cervical cancer is responsible for 10–15% of cancer-related deaths in women worldwide1,2. The etiological role of infection with high-risk human papilloma viruses (HPV) in cervical carcinomas is well established3. Previous studies have implicated somatic mutations in PIK3CA, PTEN, TP53, STK11 and KRAS4–7 as well as several copy number alterations in the pathogenesis of cervical carcinomas8,9. Here, we report whole exome sequencing analysis of 115 cervical carcinoma-normal paired samples, tran...

  11. 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.

  12. Malignant adnexal carcinomas of the skin

    DEFF Research Database (Denmark)

    Klit, Anders; Hærskjold, Ann; Lei, Ulrikke;

    2016-01-01

    Malignant adnexal carcinomas of the skin are rare but associated with high propensity for local recurrence, and for some of the distinct subgroups they are known to metastasize regionally or distant. Biopsy is necessary for correct diagnosis, as the lesions cannot be separated from other tumour...... types entirely on their clinical appearance. The histologic diagnosis is troublesome, and the lesions are often mistaken for their benign counterpart, basal cell carcinoma or squamous cell carcinoma. The lesions are treated with surgery. Radiotherapy and chemotherapy may play a role in treatment...

  13. Impacto del manejo del ecosistema del pastizal en la fertilidad natural y sostenibilidad del suelo

    Directory of Open Access Journals (Sweden)

    A. Senra

    2009-01-01

    Full Text Available Sobre la base de resultados, principalmente de Cuba, el objetivo del presente trabajo fue estudiar el impacto del manejo del ecosistema del pastizal, en condiciones del trópico estacional -en sistemas de explotación bovina- para conocer sus efectos en la sostenibilidad y eficiencia del pastizal y el suelo. Se discute el efecto del manejo del pastizal en la compactación, y el escurrimiento e infiltración del agua, así como la erosión pluvial de los suelos. Se señalan los impactos positivos de la inclusión de los árboles multipropósito en los pastizales y sus efectos en disminuir las radiaciones solares y evaporación en el suelo, así como suavizar el ambiente. Se indican índices fundamentales para el control sistemático de la sostenibilidad y eficiencia en los sistemas de explotación bovina con base de pastos; se enfatiza el papel decisivo del hombre en garantizar adecuadas tecnologías de manejo y su ajuste a las condiciones de explotación. Se llega a conclusiones y recomendaciones que podrán ayudar a la recuperación, sostenibilidad y eficiencia de la ganadería en nuestras condiciones.

  14. Merkel cell carcinoma versus metastatic small cell primary bronchogenic carcinoma

    Directory of Open Access Journals (Sweden)

    Katya Lisette Velasquez Cantillo

    2013-01-01

    Full Text Available Merkel cell carcinoma (MCC of the skin is a rare, aggressive, malignant neuroendocrine neoplasm. The tumor classically demonstrates positive immunohistochemistry (IHC staining for chromogranin A(ChrA, cytokeratin 20 (CK20, neuron specific enolase (NSE and/or achaete-acute complex-like 1 (MASH1. The newly identified Merkel cell polyomavirus (MCPyV has been found to be associated with most MCC cases. The primary histologic differential diagnoses of cutaneous MCC is small cell primary bronchogenic carcinoma (SCLC; moreover, both are of neuroendocrine origin. SCLC accounts for approximately 10-15% of all primary lung cancer cases; this histologic subtype is a distinct entity with biological and oncological features distinct from non-small cell lung cancer (NSCLC. In contradistinction to MCC, SCLC is classically IHC positive for cytokeratin 7 (CK7 and transcription factor (TTF-1. Similar to SCLC, MCC cell lines may be classified into two different biochemical subgroups designated as Classic and Variant. In our review and case report, we aim to emphasize the importance of a multidisciplinary approach to the approach to this difficult differential diagnosis. We also aim to comment about features of the cells of origin of MCC and SCLC; to summarize the microscopic features of both tumors; and to review their respective epidemiologic, clinical, prognostic and treatment features. We want to emphasize the initial workup study of the differential diagnosis patient, including evaluating clinical lymph nodes, a clinical history of any respiratory abnormality, and chest radiogram. If a diagnosis of primary cutaneous MCC is confirmed, classic treatment includes excision of the primary tumor with wide margins, excision of a sentinel lymph node, and computed tomography, positron emission tomography and/or Fluorine-18-fluorodeoxyglucose positron emission tomography scan studies

  15. Cholecystocolic fistula caused by gallbladder carcinoma: preoperatively misdiagnosed as hepatic colon carcinoma.

    Science.gov (United States)

    Ha, Gi Won; Lee, Min Ro; Kim, Jong Hun

    2015-04-21

    Cholecystocolic fistula secondary to gallbladder carcinoma is extremely rare and has been reported in very few studies. Most cholecystocolic fistulae are late complications of gallstone disease, but can also develop following carcinoma of the gallbladder when the necrotic tumor penetrates into the adjacent colon. Although no currently available imaging technique has shown great accuracy in recognizing cholecystocolic fistula, abdominopelvic computed tomography may show fistulous communication and anatomical details. Herein we report an unusual case of cholecystocolic fistula caused by gallbladder carcinoma, which was preoperatively misdiagnosed as hepatic flexure colon carcinoma.

  16. Nonconventional papillary thyroid carcinomas with pleomorphic tumor giant cells: a diagnostic pitfall with anaplastic carcinoma.

    Science.gov (United States)

    Hommell-Fontaine, Juliette; Borda, Angela; Ragage, Florence; Berger, Nicole; Decaussin-Petrucci, Myriam

    2010-06-01

    The presence of pleomorphic tumor giant cells in thyroid carcinomas of follicular cell origin is always worrisome for the pathologist as they first of all refer to anaplastic carcinoma, one of the most aggressive human malignancies. However, non-anaplastic pleomorphic giant cells are well described in other thyroid diseases, most often benign. In this paper, we describe four cases of papillary thyroid carcinoma displaying pleomorphic tumor giant cells with features that differ from those of anaplastic carcinoma. Pleomorphic giant cells were admixed with the underlying thyroid carcinoma and constituted from 5% to 25% of the tumor. Cytologically, they had an abundant eosinophilic cytoplasm with large and irregular nuclei. Compared to pleomorphic giant cells of anaplastic carcinoma, they reproduced the growth pattern of the underlying carcinoma, had a low mitotic index without necrosis or inflammation, and were reactive with thyroglobulin and thyroid-specific transcription factor-1 and strongly and diffusely positive for cytokeratin AE1/AE3. After 16-84 months of follow-up, patients are relapse-free and still alive. These cases show that pleomorphic tumor giant cells arising in papillary thyroid carcinomas do not always represent dedifferentiation and progression to anaplastic carcinoma. Distinction among these processes is critical as their treatment and prognosis are very different.

  17. Facies del subfondo del canal Beagle, Tierra del Fuego

    Directory of Open Access Journals (Sweden)

    Gustavo Bujalesky

    2004-03-01

    Full Text Available El canal Beagle conecta los océanos Pacífico y Atlántico en el extremo meridional de Sudamérica y se ubica en el ambiente subantártico. Conforma una cuenca de unos 300 m de profundidad máxima y está separada del océano Atlántico por un umbral de 30 m de profundidad. El canal es un valle tectónico que fue completamente cubierto por el hielo glacial durante la última glaciación. Posteriormente, el canal fue ocupado por un lago glacial desde los 12.000 a los 8.000 años A.P., cuando fue invadido por el mar que alcanzó un nivel máximo entre los 6.000 y 5.000 años A.P. Con el objetivo de analizar las facies sedimentarias superficiales y del subfondo del canal se realizó un relevamiento geofísico con sonar de barrido lateral y un perfilador de 3,5 kHz. Sobre un basamento constituido por rocas metamórficas del Mesozoico, se identificaron depósitos de till y secuencias granodecrecientes que representan distintos estadios del retroceso glaciar, evidenciando hacia la sección superior facies lacustres y por encima depósitos de la transgresión marina del Holoceno. Además, se han identificado paleocauces y secuencias fluviales cubiertas por sedimentos marinos transgresivos.

  18. Severe perioperative bleeding in renal cell carcinoma after elective pericardiocentesis associated left ventricular puncture: case report

    OpenAIRE

    Javier Lasala; Miguel Alejandro Patino; Gabriel Mena; Shital Vachhani; Teresa Moon; Thao Bui; January Tsai

    2016-01-01

    Resumen En los Estados Unidos se estimó que, durante el 2015, unos 61 560 pacientes serían diagnosticados con cáncer renal y que 14 080 morirían por esta enfermedad. Presentamos el caso de un paciente con carcinoma de células renales y trombo tumoral de vena cava inferior que sufrió una hemorragia perioperatoria grave y coagulopatía después de una esternotomía de emergencia. También abordamos aspectos relevantes del cuidado anestésico perioperatorio incluyendo consideraciones y manejo de c...

  19. Profundidad tumoral y variables histopatológicas en el carcinoma epidermoide lingual: Estudio retrospectivo sobre 60 pacientes Tumoral thickness and histopathological parameters in the squamous cell carcinoma of tongue: A retrospective evaluation over 60 patients

    Directory of Open Access Journals (Sweden)

    JD Sánchez López

    2005-10-01

    Full Text Available I.- Introducción: La profundidad tumoral representa uno de los principales factores pronósticos del carcinoma epidermoide lingual. II.-Objetivos: Verificar si el espesor máximo tumoral se correlaciona con parámetros histopatológicos agresivos. III.-Material y Métodos: -Diseño: Estudio retrospectivo de base hospitalaria (Enero-1990 a Julio-1997 constituido por 60 pacientes afectos de carcinoma escamoso lingual. -Variables: Filiación del paciente, parámetros histopatológicos y profundidad tumoral. -Procedimientos de laboratorio. -Métodos estadísticos: Estadística descriptiva e inferencial (Método Bonferroni, C- Dunnet, Chi-cuadrado y test de Anova. IV.-Resultados: Asociación estadísticamente significativa entre Indice mitótico y profundidad tumoral (14,84;pI.-Introduction: The tumoral thickness represents one of the most ominous prognostic factors of the squamous cell carcinoma of tongue. II.-Objectives: To verify if the tumoral thickness is relationated with others aggressive histopathologic parameters. III.-Material and Methods: -Design: A hospital population retrospective study (January-1990 to July-1997 of 60 patients affected of carcinoma of tongue. -Variables: Data patients, histopathological parameters and tumoral thickness. -Laboratory procedures. -Stadistic methods: Descriptive and Inferential stadistical: Bonferroni method, C-Dunnet, Chi-square, Anova test… IV.-Results: There is a statistic association between mitotic Index and tumoral thickness (14,84; p<0,001. V.-Conclusions: Depth of invasion and mitotic Index are actually associated prognostic factors in the carcinoma epidermoid of tongue.

  20. Psicodrama del duelo.

    OpenAIRE

    José Antonio Espina Barrio; Marisol Filgueira Bouza

    1997-01-01

    La pérdida de rituales agrava y alarga la reacción del duelo. Se define el Psicodrama Antropológico y su intervención en el proceso del duelo. El Psicodrama Focal del Duelo es una psicoterapia breve centrada en el proceso de Duelo. Se comentan varios casos y resultados. Se concluye con un programa sencillo para el duelo en Atención Primaria.

  1. Psicodrama del duelo.

    Directory of Open Access Journals (Sweden)

    José Antonio Espina Barrio

    1997-01-01

    Full Text Available La pérdida de rituales agrava y alarga la reacción del duelo. Se define el Psicodrama Antropológico y su intervención en el proceso del duelo. El Psicodrama Focal del Duelo es una psicoterapia breve centrada en el proceso de Duelo. Se comentan varios casos y resultados. Se concluye con un programa sencillo para el duelo en Atención Primaria.

  2. Las vitrinas del museo

    OpenAIRE

    2010-01-01

    Tanto las obras de arte como los animales nos ocultan información cuando se reúnen en un museo, pues quedan al margen del contexto espacial y temporal del que proceden. No obstante, el ojo avezado sabrá interpretar una parte de esa historia perdida. Del mismo modo, algunas especies vivas traslocadas conservan rasgos que nos ayudan a inferir las condiciones ambientales de su lugar de origen.

  3. Transarterial Therapies for Hepatocellular Carcinoma

    Science.gov (United States)

    Lanza, Ezio; Donadon, Matteo; Poretti, Dario; Pedicini, Vittorio; Tramarin, Marco; Roncalli, Massimo; Rhee, Hyungjin; Park, Young Nyun; Torzilli, Guido

    2016-01-01

    Background The treatment of hepatocellular carcinoma (HCC) is still a major health issue because of its increasing incidence and because of the complexity of its management. Transarterial embolization (TAE) and transarterial chemoembolization (TACE) are two widely used locoregional therapies in the treatment of HCC, especially for unresectable intermediate and advanced HCCs. Summary The modern use of TAE and TACE opens new scenarios for the treatment of unresectable HCC and has yielded interesting results. The present work describes the role of transarterial therapies for HCC and focuses on the different Western and Eastern approaches to the study of response predictors. Key Messages Recent refinements in interventional radiology techniques and in HCC patient selection have facilitated better local control of the disease. The molecular profiling of HCC to predict the response to TACE and TAE will greatly help clinicians identify the optimum therapy. PMID:27995085

  4. Hepatocellular carcinoma and industrial epidemics

    Institute of Scientific and Technical Information of China (English)

    Alain Braillon; Gérard Dubois

    2011-01-01

    Worldwide, the burden of the non viral causes of hepatocellular carcinoma (HCC) is usually underestimated. Clearly industrial goods, tobacco, alcohol and processed foods are the agents of new epidemics in modern times which far outscore the burden of infectious agents on morbidity and mortality. Smoking, a dose-related contributing factor for HCC, receives too little attention in clinical practice. In France, tobacco, hepatitis B and C virus and alcohol are the main risk factors for HCC mortality (33%, 31% and 26%, respectively). In developing countries, where tobacco consumption is dramatically increasing, this epidemic may soon surpass hepatitis B. Obesity and diabetes are the contributing factors too. The role of industrial processed foods in the increase of the prevalence of obesity and diabetes cannot be ignored.

  5. [Gastric carcinoma in the aged].

    Science.gov (United States)

    Pannella, A; Laboranti, F; Guardamagna, A; Di Ninno, N; Fossa, M

    1989-08-31

    After examining the literature on the subject, all patients aged over 60 and admitted to the Surgical Pathology Department of Pavia University from 1-1-1974 to 31-12-1985, suffering from gastric carcinoma have been considered. From the results obtained it is concluded that stomach cancer is a disease that preferentially affects the IIIrd age, usually occurring with atypical symptomatology that leads the patient to underestimate the seriousness of the disease, and impeding early diagnosis that would be effective for therapeutic purposes. It is therefore essential for the necessary examination to be carried out at the first warning symptoms. Further, the general state of these patients has to be controlled and appropriate treatment sought to treat the various accompanying conditions and so prepare the patient for operation.

  6. Fractura triple del complejo suspensorio del hombro

    Directory of Open Access Journals (Sweden)

    Eraclio Delgado Rifá

    2015-06-01

    Full Text Available El complejo suspensorio del hombro es una estructura sumamente importante, compuesta por un anillo de huesos y tejidos blandos. Las lesiones aisladas de este complejo anatómico son frecuentes y no afectan su estabilidad. La interrupción doble conduce a la inestabilidad de esta estructura y usualmente requiere tratamiento quirúrgico. La triple interrupción, por su parte, es sumamente rara y es encontrada en casos de trauma de alta energía a menudo en asociación con otras lesiones. Se presenta una triple lesión del complejo suspensorio del hombro en un paciente de 46 años de edad, con una fractura de la glenoides, del acromion tipo III de Kuhn y de la coracoides tipo II de Ogawa. En este caso, la fractura del acromion fue tratada con fijación percutánea con alambres de Kirschner, por tener asociado lesiones de partes blandas que contraindicaron la reducción abierta. La fractura de la glenoides y de la apófisis coracoides fueron tratadas conservadoramente. Después de 6 meses de evolución, el paciente tuvo un resultado funcional aceptable, con una abducción de 90 grados, los 30 grados de rotación externa y 70 de rotación interna, además asintomático y consolidación de todas las fracturas. A pesar de ser catalogada de una lesión grave del cinturón escapular y estar asociada a otras lesiones se obtuvo un resultado satisfactorio al final del tratamiento.

  7. Differentiated thyroid carcinoma : diagnostic and therapeutic studies

    NARCIS (Netherlands)

    Liu, Ying-ying

    2006-01-01

    Differentiated thyroid carcinoma (DTC) has favorable prognosis with high cure rate under treatment of thyroidectomy followed by radiotherapy. However, therapeutic efficiency decreases when dedifferentiation occurs. One of the purposes in this study is to use pharmaceuticals intervention to promote t

  8. Incidental anaplastic thyroid carcinoma: A case report

    Directory of Open Access Journals (Sweden)

    Pembegül GÜNEŞ

    2008-01-01

    Full Text Available Anaplastic thyroid carcinoma is one of the most aggressive of all human malignant diseases. It has an unfavorable prognosis and responsible for most of the mortality and morbidity rates due to thyroid carcinomas. We present a case of incidental anaplastic thyroid carcinoma and discuss the epidemiology, biology, risk factors, prognostic factors of the disease and the approach to treatment, in the light of the current medical literature. The prognosis is much better in cases with incidental carcinoma compared to the classical type and surgical excision of the tumor has a favorable effect on the results. Our case was followed-up for 1.5 years with no evidence of recurrence or metastasis.

  9. Targeting influenza virosomes to ovarian carcinoma cells

    NARCIS (Netherlands)

    Mastrobattista, E; Schoen, P; Wilschut, J; Crommelin, DJA; Storm, G

    2001-01-01

    Reconstituted influenza virus envelopes (virosomes) containing the viral hemagglutinin (HA) have attracted attention as delivery vesicles for cytosolic drug delivery as they possess membrane fusion activity. Here, we show that influenza virosomes can be targeted towards ovarian carcinoma cells (OVCA

  10. Coagulation function in patients with pancreatic carcinoma

    Institute of Scientific and Technical Information of China (English)

    WANG Hang-yan; XIU Dian-rong; LI Zhi-fei; WANG Gang

    2009-01-01

    Background The coagulation function in patients with pancreatic carcinoma is abnormal and the reason is not very clear. In this study, we retrospectively analyzed the coagulation function in patients with pancreatic carcinoma.Methods From June 2004 to December 2007, 132 patients received diagnosis and treatment in our hospital. The coagulative parameters including the prothrombin time, activated partial thromboplastin time, and fibrinogen levels were collected and studied retrospectively.Results The average fibrinogen levels in patients with pancreatic carcinoma, (476.21±142.05) mg/dl, were significantly higher than in patients with cholangiolithiasis, (403.28±126.41) mg/dl (P 0.05).Conclusions The level of fibrinogen in patients with pancreatic carcinoma was elevated. The elevated fibrinogen level may be associated with invasiveness and lymphatic metastasis. Using vitamin K in perioperation management did not reduce intraoperative blood loss.

  11. Subglottic adenoid cystic carcinoma mistaken for asthma

    Institute of Scientific and Technical Information of China (English)

    Hua-lin WANG; Lin XU; Fu-jun LI

    2009-01-01

    of the tumor. The diagnosis of subglottic adenoid cystic carcinoma should be considered in patients who are characterized by dyspnea, cough, and stridor, but do not respond to regular anti-asthmatic therapy.

  12. Breast metastasis from carcinoma of gall bladder

    Directory of Open Access Journals (Sweden)

    Ajaz Ahmad Malik

    2013-01-01

    Full Text Available Carcinoma of gall bladder has early lymphatic and haematogenous spread. Most common extra abdominal site of metastasis is the lung. Metastasis to breast from carcinoma of breast is very rare. Our case describes an interesting case of carcinoma of gall bladder metastising to breast. A 50-year-old female presented to our outpatient department with a small nodule on upper outer quadrant of left breast. Patient had a history of cholecystectomy done for symptomatic gall stones 2 years back. Histopathological examination of the gall bladder specimen showed adenocarcinoma of the gall bladder with invasion to lamina propria. No additional treatment was offered to the patient. The breast nodule was excised and sent for histopathological examination. Histopathological examination revealed metastising adenocarcinoma. Patient was subjected to palliative chemotherapy (Gamcitabine and carboplatin. However, patient died of hepatic encephalopathy after 5 months. Our case reports an unusual site of metastasis from carcinoma of gall bladder which is very rare.

  13. Nevoid Basal Cell Carcinoma Syndrome (Gorlin Syndrome).

    Science.gov (United States)

    Bresler, Scott C; Padwa, Bonnie L; Granter, Scott R

    2016-06-01

    Nevoid basal cell carcinoma syndrome, or basal cell nevus syndrome (Gorlin syndrome), is a rare autosomal dominantly inherited disorder that is characterized by development of basal cell carcinomas from a young age. Other distinguishing clinical features are seen in a majority of patients, and include keratocystic odontogenic tumors (formerly odontogenic keratocysts) as well as dyskeratotic palmar and plantar pitting. A range of skeletal and other developmental abnormalities are also often seen. The disorder is caused by defects in hedgehog signaling which result in constitutive pathway activity and tumor cell proliferation. As sporadic basal cell carcinomas also commonly harbor hedgehog pathway aberrations, therapeutic agents targeting key signaling constituents have been developed and tested against advanced sporadically occurring tumors or syndromic disease, leading in 2013 to FDA approval of the first hedgehog pathway-targeted small molecule, vismodegib. The elucidation of the molecular pathogenesis of nevoid basal cell carcinoma syndrome has resulted in further understanding of the most common human malignancy.

  14. Treatment Options by Stage (Merkel Cell Carcinoma)

    Science.gov (United States)

    ... Cancer Skin Cancer Screening Research Merkel Cell Carcinoma Treatment (PDQ®)–Patient Version General Information About Merkel Cell ... Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery ) and treatment ...

  15. Carcinoma verrucoso: uma variante clínico-histopatológica do carcinoma espinocelular Verrucous carcinoma: a clinical-histopathologic variant of squamous cell carcinoma

    Directory of Open Access Journals (Sweden)

    Maurício Zanini

    2004-10-01

    Full Text Available O carcinoma verrucoso é uma rara e indolente forma do carcinoma espinocelular descrita por Ackerman em 1948. Sua localização preferencial é a cavidade oral. Clinicamente manifesta-se como lesão verrucosa, de progressivo e lento crescimento e bom prognóstico. O tratamento de escolha é a exérese cirúrgica, devendo o paciente ser regularmente acompanhado devido ao risco de recorrências.Verrucous carcinoma is a rare and indolent variant of the squamous cell carcinoma described by Ackerman in 1948. The oral cavity is a most common site. Clinically, it presents most often as a slow-growing verrucous lesion. The prognosis is good. Treatment of choice is surgery. Patients require frequent reevaluation because recurrences may occur.

  16. Sunitinib benefits patients with renal cell carcinoma

    Science.gov (United States)

    Findings from clinical trial patients with metastatic renal cell carcinoma, a common kidney cancer, show they did not have accelerated tumor growth after treatment with sunitinib, in contrast to some study results in animals.

  17. Concepto del Derecho Mercantil

    OpenAIRE

    Morelli C., Francisco

    2014-01-01

    No existe nada más difícil en el campo del Derecho Mercantil que pretender dar un concepto orgánico del mismo. La razón fundamental de esta imposibilidad  estriba precisamente en la falta de concordancia entre el derecho mercantil y el derecho de comercio. Una definición que considera el derecho mercantil como la parte del derecho privado encargada de regular las relaciones que se derivan del comercio, como lo hacen todas las definiciones clásicas,  pecaría de un doble defecto que la harían i...

  18. La unidualidad del hombre

    OpenAIRE

    Morin, Edgar

    1997-01-01

    Este art??culo acomete la cuesti??n de la definici??n y unidad del g??nero humano. Tras poner de manifiesto la doble conciencia de la que depende la noci??n de hombre, se ocupa de la afirmaci??n humanista de la unidad del hombre, mostrando los reversos de esta afirmaci??n (separaci??n del hombre de la naturaleza e ignorancia de la unidad biol??gica de la especie homo), as?? como de las distintas envestidas contra el humanismo cuestionadoras de la unidad del hombre lanzadas durante el siglo XX...

  19. Cardiac metastasis from a renal cell carcinoma

    OpenAIRE

    AlGhamdi, Abdulaziz; Tam, James

    2006-01-01

    A 59-year-old man developed an episode of syncope while he was driving. This resulted in a motor vehicle accident, and the patient sustained an open fracture of the left femur. Biopsy of the left femur fracture showed a metastastic renal cell carcinoma, and echocardiography revealed a right ventricular mass without contiguous vena caval or right atrial involvement. This is one of the few reported cases of renal cell carcinoma associated with syncope as an initial symptom.

  20. Adenoid cystic carcinoma of the lacrimal gland

    DEFF Research Database (Denmark)

    von Holstein, Sarah L; Fehr, André; Persson, Marta;

    2013-01-01

    To investigate genetic alterations in lacrimal gland adenoid cystic carcinomas (ACCs) with emphasis on the MYB-NFIB fusion oncogene and its downstream targets, MYB rearrangements, and copy number alterations in relation to clinical data and survival.......To investigate genetic alterations in lacrimal gland adenoid cystic carcinomas (ACCs) with emphasis on the MYB-NFIB fusion oncogene and its downstream targets, MYB rearrangements, and copy number alterations in relation to clinical data and survival....

  1. Renal Cell Carcinoma Metastasized to Pagetic Bone.

    Science.gov (United States)

    Ramirez, Ashley; Liu, Bo; Rop, Baiywo; Edison, Michelle; Valente, Michael; Burt, Jeremy

    2016-01-01

    Paget's disease of the bone, historically known as osteitis deformans, is an uncommon disease typically affecting individuals of European descent. Patients with Paget's disease of the bone are at increased risk for primary bone neoplasms, particularly osteosarcoma. Many cases of metastatic disease to pagetic bone have been reported. However, renal cell carcinoma metastasized to pagetic bone is extremely rare. A 94-year-old male presented to the emergency department complaining of abdominal pain. A computed tomography scan of the abdomen demonstrated a large mass in the right kidney compatible with renal cell carcinoma. The patient was also noted to have Paget's disease of the pelvic bones and sacrum. Within the pagetic bone of the sacrum, there was an enhancing mass compatible with renal cell carcinoma. A subsequent biopsy of the renal lesion confirmed renal cell carcinoma. Paget's disease of the bone places the patient at an increased risk for bone neoplasms. The most commonly reported sites for malignant transformation are the femur, pelvis, and humerus. In cases of malignant transformation, osteosarcoma is the most common diagnosis. Breast, lung, and prostate carcinomas are the most common to metastasize to pagetic bone. Renal cell carcinoma associated with Paget's disease of the bone is very rare, with only one prior reported case. Malignancy in Paget's disease of the bone is uncommon with metastatic disease to pagetic bone being extremely rare. We report a patient diagnosed with concomitant renal cell carcinoma and metastatic disease within Paget's disease of the sacrum. Further research is needed to assess the true incidence of renal cell carcinoma associated with pagetic bone.

  2. Clear cell myoepithelial carcinoma ex pleomorphic adenoma

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    Nikhil R Rabade

    2014-01-01

    Full Text Available Pleomorphic adenoma is the most common epithelial neoplasm of lacrimal gland. A clear cell myoepithelial carcinoma arising in the background of pleomorphic adenoma is common in the salivary glands but very rare in the lacrimal glands. We report the case of a 27 year old man whose lacrimal gland pleomorphic adenoma recurred several times over a period of four years and ultimately evolved into a clear cell myoepithelial carcinoma ex pleomorphic adenoma.

  3. Clinical suspicion and parathyroid carcinoma management

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    Fabio Luiz de Menezes Montenegro

    Full Text Available CONTEXT AND OBJECTIVE: Adequate management of parathyroid carcinoma apparently relates to the surgeon’s ability to identify it at the first operation. The objective of this paper was to evaluate the role of clinical suspicion in the management of parathyroid carcinoma. DESIGN AND SETTING: Retrospective analysis of parathyroid carcinoma patients treated in Department of Head and Neck Surgery, Faculdade de Medicina da Universidade de São Paulo. METHODS: Cross-sectional study of 143 patients who underwent surgery from 1995 to 2000, due to hyperparathyroidism. These cases were reviewed to ascertain whether preoperative and intraoperative suspicion of parathyroid carcinoma were helpful during the operation, and which factors demonstrated the suspicion of cancer best. RESULTS: Among 66 patients with primary hyperparathyroidism there were four cases of parathyroid carcinoma (6.1%, and one case was found in secondary hyperparathyroidism (1.3%. Palpable nodules were found in five patients with primary hyperparathyroidism, four of them with parathyroid carcinoma. Preoperative levels of calcium in primary hyperparathyroidism with cancer patients varied from 12.0 mg/dl to 18.2 mg/dl. Two patients had gross macroscopic spread of the tumor to adjacent structures. Except for one patient, with extensive disease, tumors were resected en bloc. In secondary hyperparathyroidism, parathyroid carcinoma was found in a fifth mediastinal gland. One atypical adenoma was observed. CONCLUSIONS: High levels of calcium, palpable tumors and adherence to close structures are more common in parathyroid carcinoma. These clinical signs may be helpful for decision-making during parathyroid surgery.

  4. Ureterocele urothelial carcinoma: managing a rare presentation.

    Science.gov (United States)

    Astigueta, Juan Carlos; Abad-Licham, Milagros; Silva, Eloy; Alvarez, Víctor; Piccone, Francis; Cruz, Enrique; Redorta, Joan Palou

    2016-01-01

    It is very uncommon for urothelial carcinoma to develop in an ureterocele. It is generally discovered in an imaging study or in connection with haematuria. We found very few reports in the literature. Here, we report on the case of a 71-year-old male who initially presented with haematuria and low back pain and who then underwent transurethral resection for an intraureterocele tumour. Pathology confirmed urothelial carcinoma.

  5. Familial Follicular-Cell Derived Carcinoma

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    Eun Ju eSon

    2012-05-01

    Full Text Available Follicular cell-derived well-differentiated thyroid cancer, papillary (PTC and follicular thyroid carcinomas (FTC compose 95% of all thyroid malignancies. Familial follicular cell-derived well-differentiated thyroid cancers contribute to 5% of those cases. These familial follicular cell derived carcinomas or non-medullary thyroid carcinomas (NMTC divide into two clinical-pathological groups. One group, syndromic-associated, composed by predominately non-thyroidal tumors, is comprised of Pendred syndrome, Warner syndrome, Carney complex type 1, PTEN-hamartoma tumor syndrome (Cowden disease; PHTS, familial adenomatous polyposis (FAP/Gardner syndrome. Additionally other less established links correlated to the development of follicular cell-derived tumors have also included Ataxia-teleangiectasia syndrome, McCune Albright syndrome, and Peutz-Jeghers syndrome. The subsequent group encompasses syndromes typified by non-medullary thyroid carcinomas or NMTC, as well as, pure familial (f PTC with or without oxyphilia, fPTC with multinodular goiter and fPTC with papillary renal cell carcinoma. This heterogeneous group of diseases has not a established genotype-phenotype correlation as the well-known genetic events identified in the familial C-cell-derived tumors or medullary thyroid carcinomas (MTC. Clinicians should be have the knowledge to identify the likelihood of a patient presenting with thyroid cancer having an additional underlying familial syndrome stemming from characteristics through morphological findings that would alert the pathologist to have the patient undergo subsequent molecular genetics evaluations. This review will discuss the clinical and pathological findings of the patients with familial papillary thyroid carcinoma, such as familial adenomatous polyposis, Carney complex, Werner syndrome, and Pendred syndrome and the heterogeneous group of familial papillary thyroid carcinoma.

  6. [Intrascrotal metastasis in a renal cell carcinoma].

    Science.gov (United States)

    Calleja Escudero, J; Pascual Samaniego, M; Martín Blanco, S; de Castro Olmedo, C; Gonzalo, V; Fernández del Busto, E

    2004-04-01

    The present article reports a case of intrascrotal metastasis of renal adenocarcinoma. This is an unusual case. A 66-year-old male patient undewent right radical nephrectomy and cavotomy for renal cell carcinoma with renal vein infiltration and thrombus in cava. Six months later the patient present with a nodulous enlargement intrascrotal and roots of penis. And he died 15 moths after nephrectomy. Usually intrascrotal metastases are a late event in the course after detection of a renal carcinoma.

  7. Eyelid Squamous Cell Carcinoma in a Dog

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    Chang-hyun Song1§, Sae-kwang Ku2§, Hwan-soo Jang3, Eun-young Kye, Sung-ho Yun, Kwang-ho Jang and Young-sam Kwon*

    2012-06-01

    Full Text Available A 10-year-old, female, Yorkshire Terrier was presented with a left lower eyelid mass. No other abnormality was detected on affected eye in a general eye examination. The mass was surgically removed and histologically diagnosed as a squamous cell carcinoma. The advancement flap used in this case may be an appropriate therapeutic choice for eyelid squamous cell carcinoma in dogs.

  8. Clinicopathological Features of Triple Negative Breast Carcinoma

    Science.gov (United States)

    Reddy, Gowry Maram; Pai, Radha R.

    2017-01-01

    Introduction Breast carcinoma is one of the most common malignancies affecting women in developing countries. Molecular studies of breast carcinoma have classified the tumour based on the immunohistochemical staining into 4 subtypes, such as Luminal A, Luminal B, HER2/neu Positive and Triple Negative Breast Carcinoma (TNBC). TNBCs are reported to have an aggressive behaviour and wide metastasis, leading to selective treatment outcomes. Aim The aim was to study the clinicopathological features such as age, site, tumour size, histopathological type, histologic grade, lymph node status, stage and treatment outcomes of triple negative breast carcinoma. Materials and Methods A retrospective study was conducted on 108 cases of breast carcinoma received during the period of 2 years. The tumour was classified based on immunohistochemical staining into four subtypes. The clinicopathological details, histomorphological and immunohistochemical features of TNBC were studied. Results Of the 108 patients, 34 patients were diagnosed as TNBC. The average age at presentation was 48 years. Most of the cases showed Nottingham Modification of Scarff Bloom-Richardson (NMBR) grade 3 (55.9%) and stage II (67.6%). Ly-mph node metastasis was seen in 50% of cases. Infiltrating ductal carcinoma (not otherwise specified) type (91.2%) was the most common histological type. Among the other subtypes, Luminal A carcinoma was the most common (36.1%), followed by TNBC (31.5%) and HER2/neu positive carcinomas (28.7%). Compared to the other types of tumours, TNBC showed the most frequent distant lymph node metastasis (50%) when compared to luminal A (38.5%), luminal B (25%), HER2/neu positive (48.4%). Unlike the other types of tumours, TNBC were mostly high-grade. Conclusion TNBC have an aggressive behaviour compared to other subtypes with higher NMBR grade, nuclear pleomorphism, high mitotic rate and lymph node metastasis. PMID:28273970

  9. LUNG CARCINOMA IN YOUNG ADULT MALES

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    Dhanasekar

    2015-05-01

    Full Text Available Here we report three case of Lung Carcinoma in young adult males, non - smokers, no family history of malignancy and no other risk factors like occupational or environmental exposure, past history of tuberculosis or chronic obstructive bronchitis, who presented with variable chest radiographic and computerized tomog raphic findings, these cases warrants further analysis regarding the changing trend of higher incidents of lung carcinoma in young adult males.

  10. LUNG CARCINOMA IN YOUNG ADULT MALES

    OpenAIRE

    Dhanasekar; Anbumaran; Rajagopalan; Shanmugapriya

    2015-01-01

    Here we report three case of Lung Carcinoma in young adult males, non - smokers, no family history of malignancy and no other risk factors like occupational or environmental exposure, past history of tuberculosis or chronic obstructive bronchitis, who presented with variable chest radiographic and computerized tomog raphic findings, these cases warrants further analysis regarding the changing trend of higher incidents of lung carcinoma in young adult males.

  11. GATA3 expression in breast carcinoma: utility in triple-negative, sarcomatoid, and metastatic carcinomas.

    Science.gov (United States)

    Cimino-Mathews, Ashley; Subhawong, Andrea P; Illei, Peter B; Sharma, Rajni; Halushka, Marc K; Vang, Russell; Fetting, John H; Park, Ben Ho; Argani, Pedram

    2013-07-01

    GATA3 plays an integral role in breast luminal cell differentiation and is implicated in breast cancer progression. GATA3 immunohistochemistry is a useful marker of breast cancer; however, its use in specific subtypes is unclear. Here, we evaluate GATA3 expression in 86 invasive ductal carcinomas including triple-negative, Her-2, and luminal subtypes, in addition to 13 metaplastic carcinomas and in 34 fibroepithelial neoplasms. In addition, we report GATA3 expression in matched primary and metastatic breast carcinomas in 30 patients with known estrogen receptor (ER), progesterone receptor (PR), and Her-2 status, including 5 with ER and/or PR loss from primary to metastasis. Tissue microarrays containing 5 to 10 cores per tumor were stained for GATA3, scored as follows: 0 (0-5%), 1+ (6%-25%), 2+ (26%-50%), 3+ (51%-75%), and 4+ (>75%). GATA3 labeling was seen in 67% (66/99) of primary ductal carcinomas including 43% of triple-negative and 54% of metaplastic carcinomas. In contrast, stromal GATA3 labeling was seen in only 1 fibroepithelial neoplasm. GATA3 labeling was seen in 90% (27/30) of primary breast carcinomas in the paired cohort, including 67% of triple-negative carcinomas. GATA3 labeling was overwhelmingly maintained in paired metastases. Notably, GATA3 was maintained in all "luminal loss" metastases, which showed ER and/or PR loss. In conclusion, GATA3 expression is maintained between matched primary and metastatic carcinomas including ER-negative cases. GATA3 can be particularly useful as a marker for metastatic breast carcinoma, especially triple-negative and metaplastic carcinomas, which lack specific markers of mammary origin. Finally, GATA3 labeling may help distinguish metaplastic carcinoma from malignant phyllodes tumors.

  12. Carcinoma de células renales: descripción de casos

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    Lindsay Chacón-Garita

    2015-09-01

    Full Text Available Justificación: los carcinomas de células renales son un grupo de neoplasias malignas originadas del epitelio de los túbulos renales. Estas neoplasias representan en promedio un 90% de todas las neoplasias malignas renales en adultos de ambos sexos. El tabaco ha sido descrito en la bibliografía como el principal factor de riesgo; otras variables como el sobrepeso y la obesidad se han ligado a los mecanismos que participan en la inducción de estos tumores malignos. Se ha descrito además, una mayor incidencia en pacientes con hipertensión arterial. El objetivo fue determinar la incidencia, los factores de riesgos asociados y las características clínico-patológicas de los carcinomas de células renales, con base en los resultados de las biopsias del Servicio de Patología del Hospital San Rafael de Alajuela. Métodos: se revisó los expedientes clínicos y las láminas histológicas de cada una de las biopsias diagnosticadas como carcinomas de células renales, en el periodo comprendido entre enero de 2009 y diciembre de 2013, para determinar la incidencia, los factores de riesgo asociados y las características clínico- patológicas. Resultados: en este periodo se diagnosticó un total de 36 carcinomas de células renales, 27 de los cuales se presentaron en pacientes de sexo masculino. La edad promedio de presentación fue de 60,1 años (43 a 79 años. Del total de los casos, 21 presentaron índices de masa corporal por encima de rangos normales, 26 pacientes eran hipertensos y 15 eran tabaquistas. El diagnóstico clínico de estos tumores fue incidental en la mayoría de los casos. El tamaño del tumor fue en promedio de 5,7cm; en el 86,1% de los casos se trató de CCR de tipo células claras; un 58,3% tuvo un grado histológico de Fuhrman II y un 47,2% corresponde a tumores con un estadio temprano (T1. Conclusiones: los carcinomas de células renales afectan predominantemente a los pacientes de sexo masculino, en la sexta década de la

  13. Salivary duct carcinoma of the parotid gland

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    Mona Mlika

    2012-01-01

    Full Text Available Salivary duct carcinoma of the parotid gland is an uncommon tumor, highly aggressive. About 200 cases have been reported in the English literature. Pathomorphologically, these tumors showed great similarities to ductal carcinoma of the female breast, which is why they described this tumor as "salivary duct carcinoma." The authors describe a new case of salivary duct carcinoma of the parotid gland. We present the case of a 50-year-old patient with progressive facial paralysis. The MRI examination of the head showed two ill-defined formations. A malignant tumor was strongly suspected, so that a total left parotidectomy with excision of the adjacent facial nerve and left lymph node dissection was performed. Microscopic examination concluded to a salivary duct carcinoma of the left parotid gland negative with Her2/neu antibody with lymph node metastasis. There were no recurrences or metastases within 3 years of follow-up. Salivary duct carcinoma of the parotid gland is a rare tumor with an aggressive behavior. This is due to its propensity to infiltrate distant organs. The diagnosis is based on microscopic examination. Treatment modalities are non-consensual, but some authors advocate the necessity of aggressive approach, especially in tumors negative with Heur2/neu antibody. This is due to the fact that the overexpression of this antigen was reported to be associated with a poor prognosis.

  14. Carcinoma of the lung in Lancashire coalminers.

    Science.gov (United States)

    Rooke, G B; Ward, F G; Dempsey, A N; Dowler, J B; Whitaker, C J

    1979-04-01

    The prevalence at death of carcinoma of the lung in miners and ex-miners has been compared in those with and without pneumoconiosis at necropsy. The prevalence of 11.4% in the group as a whole is no greater than that in the male population in North-west England. Carcinoma of the lung was present in 62 (13.1%) of those without pneumoconiosis and in 52 (9.8%) of those with pneumoconiosis. The mean age at death of those with pneumoconiosis was 71.3 years so that they cannot be said to have died before the age at which they would have developed carcinoma. Those with progressive massive fibrosis whose mean age at death was 72 years had the lowest prevalence of carcinoma of the lung at all ages--8.4%. For reasons stated in the text this is inevitably a biased sample. The number of those without pneumoconiosis is probably lower than the true figure because the deaths of miners and ex-miners in whom there is no suspicion of lung disease may not have been reported to the coroner or to the pneumoconiosis medical panel. There appears to be no positive link between carcinoma of the lung and pneumoconiosis. There is a surprisingly high number of smokers and ex-smokers among these miners, and this appears to have more relevance to the prevalence of carcinoma of the lung than does pneumoconiosis.

  15. Landscape of Genomic Alterations in Cervical Carcinomas

    Science.gov (United States)

    Ojesina, Akinyemi I.; Lichtenstein, Lee; Freeman, Samuel S.; Pedamallu, Chandra Sekhar; Imaz-Rosshandler, Ivan; Pugh, Trevor J.; Cherniack, Andrew D.; Ambrogio, Lauren; Cibulskis, Kristian; Bertelsen, Bjørn; Romero-Cordoba, Sandra; Treviño, Victor; Vazquez-Santillan, Karla; Guadarrama, Alberto Salido; Wright, Alexi A.; Rosenberg, Mara W.; Duke, Fujiko; Kaplan, Bethany; Wang, Rui; Nickerson, Elizabeth; Walline, Heather M.; Lawrence, Michael S.; Stewart, Chip; Carter, Scott L.; McKenna, Aaron; Rodriguez-Sanchez, Iram P.; Espinosa-Castilla, Magali; Woie, Kathrine; Bjorge, Line; Wik, Elisabeth; Halle, Mari K.; Hoivik, Erling A.; Krakstad, Camilla; Gabiño, Nayeli Belem; Gómez-Macías, Gabriela Sofia; Valdez-Chapa, Lezmes D.; Garza-Rodríguez, María Lourdes; Maytorena, German; Vazquez, Jorge; Rodea, Carlos; Cravioto, Adrian; Cortes, Maria L.; Greulich, Heidi; Crum, Christopher P.; Neuberg, Donna S.; Hidalgo-Miranda, Alfredo; Escareno, Claudia Rangel; Akslen, Lars A.; Carey, Thomas E.; Vintermyr, Olav K.; Gabriel, Stacey B.; Barrera-Saldaña, Hugo A.; Melendez-Zajgla, Jorge; Getz, Gad; Salvesen, Helga B.; Meyerson, Matthew

    2014-01-01

    Cervical cancer is responsible for 10–15% of cancer-related deaths in women worldwide1,2. The etiological role of infection with high-risk human papilloma viruses (HPV) in cervical carcinomas is well established3. Previous studies have implicated somatic mutations in PIK3CA, PTEN, TP53, STK11 and KRAS4–7 as well as several copy number alterations in the pathogenesis of cervical carcinomas8,9. Here, we report whole exome sequencing analysis of 115 cervical carcinoma-normal paired samples, transcriptome sequencing of 79 cases and whole genome sequencing of 14 tumor-normal pairs. Novel somatic mutations in 79 primary squamous cell carcinomas include recurrent E322K substitutions in the MAPK1 gene (8%), inactivating mutations in the HLA-B gene (9%), and mutations in EP300 (16%), FBXW7 (15%), NFE2L2 (4%) TP53 (5%) and ERBB2 (6%). We also observed somatic ELF3 (13%) and CBFB (8%) mutations in 24 adenocarcinomas. Squamous cell carcinomas had higher frequencies of somatic mutations in the Tp*C dinucleotide context than adenocarcinomas. Gene expression levels at HPV integration sites were significantly higher in tumors with HPV integration compared with expression of the same genes in tumors without viral integration at the same site. These data demonstrate several recurrent genomic alterations in cervical carcinomas that suggest novel strategies to combat this disease. PMID:24390348

  16. Metastatic Basal Cell Carcinoma Accompanying Gorlin Syndrome

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    Yeliz Bilir

    2014-01-01

    Full Text Available Gorlin-Goltz syndrome or basal cell nevus syndrome is an autosomal dominant syndrome characterized by skeletal anomalies, numerous cysts observed in the jaw, and multiple basal cell carcinoma of the skin, which may be accompanied by falx cerebri calcification. Basal cell carcinoma is the most commonly skin tumor with slow clinical course and low metastatic potential. Its concomitance with Gorlin syndrome, resulting from a mutation in a tumor suppressor gene, may substantially change morbidity and mortality. A 66-year-old male patient with a history of recurrent basal cell carcinoma was presented with exophthalmus in the left eye and the lesions localized in the left lateral orbita and left zygomatic area. His physical examination revealed hearing loss, gapped teeth, highly arched palate, and frontal prominence. Left orbital mass, cystic masses at frontal and ethmoidal sinuses, and multiple pulmonary nodules were detected at CT scans. Basal cell carcinoma was diagnosed from biopsy of ethmoid sinus. Based on the clinical and typical radiological characteristics (falx cerebri calcification, bifid costa, and odontogenic cysts, the patient was diagnosed with metastatic skin basal cell carcinoma accompanied by Gorlin syndrome. Our case is a basal cell carcinoma with aggressive course accompanying a rarely seen syndrome.

  17. Metastatic Basal cell carcinoma accompanying gorlin syndrome.

    Science.gov (United States)

    Bilir, Yeliz; Gokce, Erkan; Ozturk, Banu; Deresoy, Faik Alev; Yuksekkaya, Ruken; Yaman, Emel

    2014-01-01

    Gorlin-Goltz syndrome or basal cell nevus syndrome is an autosomal dominant syndrome characterized by skeletal anomalies, numerous cysts observed in the jaw, and multiple basal cell carcinoma of the skin, which may be accompanied by falx cerebri calcification. Basal cell carcinoma is the most commonly skin tumor with slow clinical course and low metastatic potential. Its concomitance with Gorlin syndrome, resulting from a mutation in a tumor suppressor gene, may substantially change morbidity and mortality. A 66-year-old male patient with a history of recurrent basal cell carcinoma was presented with exophthalmus in the left eye and the lesions localized in the left lateral orbita and left zygomatic area. His physical examination revealed hearing loss, gapped teeth, highly arched palate, and frontal prominence. Left orbital mass, cystic masses at frontal and ethmoidal sinuses, and multiple pulmonary nodules were detected at CT scans. Basal cell carcinoma was diagnosed from biopsy of ethmoid sinus. Based on the clinical and typical radiological characteristics (falx cerebri calcification, bifid costa, and odontogenic cysts), the patient was diagnosed with metastatic skin basal cell carcinoma accompanied by Gorlin syndrome. Our case is a basal cell carcinoma with aggressive course accompanying a rarely seen syndrome.

  18. Microinvasive lobular carcinoma arising in a fibroadenoma.

    Science.gov (United States)

    Hayes, Brian D; Quinn, Cecily M

    2013-08-01

    A 51-year-old woman had a 35 mm circumscribed calcified lesion identified on screening mammography, designated R4. Excision showed a fibroadenoma with multiple foci of lobular neoplasia (atypical lobular hyperplasia and classical lobular carcinoma in situ [LCIS]). A focus of microinvasive lobular carcinoma (MILC) was also present, confirmed on immunohistochemistry. The MILC cells were ER positive, Her-2-negative, and e-cadherin negative. Microinvasive carcinoma, defined as "invasive carcinoma with no focus measuring >1 mm" (TNM UICC 7th edition) is usually encountered in ductal carcinoma in situ but may occur with classical, florid, or pleomorphic LCIS. In one series MILC constituted 0.4% of all invasive lobular carcinomas and was present in 0.4% of all LCIS. MILC is a histologically subtle lesion, the identification of which lends further weight to the concept of lobular neoplasia as a precursor lesion. MILC has been observed in hamartoma but, to our knowledge, has not previously been reported in fibroadenoma.

  19. LA POLITICA SOCIAL DEL "GOBIERNO DEL CAMBIO"

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    Laura Mota Díaz

    2002-01-01

    Full Text Available El artículo se centra en la política social del actual sexenio foxista , la cual se ha definido como incluyente y equitativa dentro del marco de un gobierno autodenominado del cambio, no sólo por lo que se refiere a la alternancia política del poder, sino porque además pretende ser un gobierno con una visión más amplia del desarrollo. Todo ello se traduce en “nuevas” estrategias para alcanzar la democracia, la equidad, la justicia social y el bienestar general de la población. El objetivo es analizar las posibilidades y limitaciones de un verdadero cambio que contribuya a mejorar la calidad de vida de la población en su sentido más amplio, pues los retos son cada vez mayores dado el incremento en los niveles de pobreza, el creciente desempleo y la constante violación a los derechos humanos.

  20. Pancreatitis del surco

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    Susana Araújo-Fernández

    2014-03-01

    It is a rare disease, but we must keep it in mind when we make the differential diagnosis of patients with abdominal pain of unknown origin. It is very important to distinguish this pathology from a pancreatic head carcinoma, as both treatments and prognosis differ greatly, so we believe important communication of a new case.

  1. SQUAMOUS CELL CARCINOMA FOOT WITH ILIOINGUINAL LYMPHADENOPATHY : A CASE REPORT

    Directory of Open Access Journals (Sweden)

    Rambabu

    2015-09-01

    Full Text Available Squamous cell carcinoma of the foot is rare. This carcinoma of the foot may arise from a precursor lesion or may be secondary. Squamous cell carcinoma of the foot may resemble verrucous carcinoma or there can be distinct verrucous carcinoma of the foot or epithelioma cuniculatum. We reporting a case of 45 years old male patient developed squamous cell carcinoma over marjolins ulcer and develop ilio - inguinal lymphadenopathy after 1 month of malignancy. We have done below knee amputation and ilioinguinal block dissection

  2. STUDY ON NUCLEAR MATRIX PROTEINS FROM HUMAN BREAST CARCINOMA

    Institute of Scientific and Technical Information of China (English)

    HE Qian; ZHANG Shu-qun; CHU Yong-lie; JIA Xiao-li; JIANG Jian-tao

    2009-01-01

    Objective To investigate the marker protein of human breast carcinoma from nuclear matrix proteins (NMPs).Methods NMPs were injected subcutaneously into rabbit to get antiserum, which was used to detect the NMPs specificity for breast carcinoma.Results There was an apparent positive band (100kD) in the NMPs of breast carcinoma, which did not exist in normal breast and other tumors that were detected.Conclusion One or one group of 100kD NMPs were found to be related to human breast carcinoma, which may be involved in the carcinogenesis and development of human breast carcinoma and valuable for breast carcinoma diagnosis.

  3. Carcinoma de Colón en recto en menores de 40 años

    Directory of Open Access Journals (Sweden)

    Carlos Mario Salinas Q.

    1990-03-01

    Full Text Available Entre abril de 1986 y abril de 1988 se estudiaron prospectivamente 21 pacientes menores de 40 años, con diagnóstico de cáncer de colon y recto; provinieron de la Consulta Externa del Hospital Universitario San Vicente de Paúl, del Hospital Pablo Tobón Uribe y de consultorios privados. A cada paciente se le investigaron los antecedentes
    personales y familiares; los síntomas y signos de presentación de la enfermedad; la localización segmentaria de las lesiones; el tipo de carcinoma; el estadio tumoral y la sobrevida; se hizo revisión cada
    tres meses.

  4. La luz del origen del universo

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    Casas, Alberto

    2015-10-01

    Full Text Available Penzias and Wilson discovered the cosmic microwave background, a luminous echo of the Big Bang, in 1965. The amount of information encoded in this relic of the early universe is truly extraordinary. At present, the most precise data about the origin and structure of the universe comes from the study of this primordial light, the full potential of which has yet to be explored.En 1965 se descubrió el fondo de radiación de microondas, un eco luminoso de la Gran Explosión (Big Bang. La cantidad de información contenida en esta reliquia del universo primitivo es verdaderamente extraordinaria. En la actualidad los datos más precisos sobre el origen y estructura del universo provienen del estudio de esta luz primigenia, que aún no ha sido explorada en todo su potencial.

  5. Intraosseous carcinoma of the jaws: A clinicopathologic review. part II: Odontogenic carcinomas

    NARCIS (Netherlands)

    Woolgar, J.A.; Triantafyllou, A.; Ferlito, A.; Devaney, K.O.; Lewis Jr., J.S.; Rinaldo, A.; Slootweg, P.J.; Barnes, L.

    2013-01-01

    This is the second of a 3-part review of the clinicopathologic features of intraosseous carcinoma of the jaws (IOCJ). This part deals with odontogenic carcinomas, rare entities that are difficult to evaluate because of changes in classification/nomenclature, lack of standardized diagnostic criteria,

  6. Pancreatic mucinous noncystic (colloid) carcinomas and intraductal papillary mucinous carcinomas are usually microsatellite stable.

    Science.gov (United States)

    Lüttges, Jutta; Beyser, Kurt; Pust, Susanne; Paulus, Anja; Rüschoff, Josef; Klöppel, Günter

    2003-06-01

    Pancreatic mucinous noncystic (colloid) carcinomas (MNCC) differ from the usual ductal adenocarcinomas in their mucin expression profile and share with many extrapancreatic mucinous carcinomas the expression of MUC2. Because mucinous carcinomas are frequently associated with mutations of the DNA mismatch repair genes, causing them to exhibit the so-called mutator phenotype, we decided to investigate whether MNCCs of the pancreas are characterized by microsatellite instability (MSI). Twelve carcinomas with a mucinous phenotype (8 mucinous noncystic carcinomas, 3 intraductal papillary-mucinous carcinomas with an invasive muconodular component, and 1 ductal adenocarcinoma with an extensive mucinous noncystic component) and 11 ductal adenocarcinomas were immunostained with monoclonal antibodies to the mismatch repair gene products hMLH1, hMSH2, and hMSH6. For MSI analysis, DNA was isolated from microdissected tissue, and five primary microsatellites (BAT 25, BAT 26, D5S346, D17S250, and D2S123) were analyzed. MSI was diagnosed in case a novel allele was found, compared with the normal tissue. The criterion for LOH was a 75% signal reduction. All carcinomas tested exhibited nuclear expression of mismatch repair gene products, except for one MNCC that also showed MSI at the molecular level. The data suggest that pancreatic carcinomas with a mucinous phenotype (MUC2+/MUC1-) do not appear to normally exhibit mutations in the mismatch repair genes and therefore differ in their carcinogenesis from those in other organs.

  7. Small cell carcinoma of the lung and large cell neuroendocrine carcinoma interobserver variability

    NARCIS (Netherlands)

    den Bakker, Michael A.; Willemsen, Sten; Gruenberg, Katrien; Noorduijn, L. Arnold; van Oosterhout, Matthijs F. M.; van Suylen, Robert J.; Timens, Wim; Vrugt, Bart; Wiersma-van Tilburg, Anne; Thunnissen, Frederik B. J. M.

    2010-01-01

    Aims: To test the hypothesis that the published morphological criteria permit reliable segregation of small cell carcinoma of the lung (SCLC) and large cell neuroendocrine carcinoma (LCNEC) cases by determining the interobserver variation. Methods and results: One hundred and seventy cases of SCLC,

  8. High-grade endometrial carcinoma: serous and grade 3 endometrioid carcinomas have different immunophenotypes and outcomes.

    Science.gov (United States)

    Alkushi, Abdulmohsen; Köbel, Martin; Kalloger, Steve E; Gilks, C Blake

    2010-07-01

    High-grade endometrial carcinomas are a heterogeneous group of tumors and include grade 3 endometrioid (EC-3), serous (SC), and clear cell carcinomas (CCC). There are conflicting data about the prognosis of these subtypes of high-grade endometrial carcinoma; this may be a result of lack of reproducibility in classifying tumor cell type. The purpose of this study was to examine differences in immunophenotype and outcome in a series of high-grade endometrial carcinomas, focusing on the comparison of EC-3 versus SC. We selected 180 endometrial carcinomas of SC, EC, or CCC type. No mixed carcinomas were included in the study. We chose the following immunohistochemical markers, estrogen receptor (ER), insulin-like growth factor 2 mRNA-binding protein 3 (IMP3), p16, p53, progesterone receptor (PR), and phosphatase and tensin homolog (PTEN) as being significantly differentially expressed in endometrial carcinoma subtypes. The tumors were stratified into 4 groups on the basis of their cell type and grade: EC grade 1 or 2, EC-3, SC, and CCC. Univariate survival analysis revealed significant differences in outcome between the 4 groups (Pcarcinomas have a significantly better prognosis than SC carcinomas of the endometrium.

  9. [Adnexal neoplasms in the context of skin cancer: trichilemmal carcinoma. Apropos of a case].

    Science.gov (United States)

    Pérez-Martínez, Ignacio Jaime; Mantilla-Morales, Alejandra; Cruz-Esquivel, Iván; Gallegos-Hernández, José Francisco

    2013-01-01

    Antecedente: el carcinoma triquilemal es una neoplasia maligna poco frecuente originada en los anexos de la piel. Debido a su escasa prevalencia suele confundirse con otros tumores dérmicos, su presentación clínica no favorece el diagnóstico diferencial y generalmente éste se hace por exclusión. En teoría, su comportamiento es lento, con poca tendencia a enviar metástasis regionales ganglionares y sistémicas. Debido al escaso número de casos no existe consenso en relación con el pronóstico, aunque generalmente se estima bueno. El objetivo de este reporte es mostrar un caso que, contrario a lo informado, es de manifestación agresiva en un paciente sin factores de riesgo para cáncer de piel, con gran infiltración tumoral de los tejidos blandos alrededor del sitio de origen. Caso clínico: paciente masculino de 65 años de edad que acudió con diagnóstico citológico de carcinoma en un tumor facial preparotídeo; al momento del diagnóstico motraba infiltración de la piel de la cara, del pabellón auricular y de la glándula parótida. Se efectuó resección completa de la neoplasia en bloque con isla de piel facial, parotidectomía total y disección radical del cuello; el defecto de partes blandas fue cubierto con un colgajo pediculado. La evolución ha sido satisfactoria; sin embargo, el seguimiento es corto. Se evalúa la experiencia asentada en la bibliografía en relación con el pronóstico y tratamiento de estos pacientes. Conclusión: el carcinoma triquilemal puede tener comportamiento localmente invasor lo que hace difícil determinar el pronóstico, que quizá dependa de la etapa clínica al momento del diagnóstico.

  10. NUT midline carcinomas of the sinonasal tract.

    Science.gov (United States)

    Bishop, Justin A; Westra, William H

    2012-08-01

    NUT midline carcinoma (NMC) is a highly lethal tumor defined by translocations involving the NUT gene on chromosome 15q14. NMC involves midline structures including the sinonasal tract, but its overall incidence at this midline site and its full morphologic profile are largely unknown because sinonasal tumors are not routinely tested for the NUT gene translocation. The recent availability of an immunohistochemical probe for the NUT protein now permits a more complete characterization of sinonasal NMCs. The archival files of The Johns Hopkins Hospital Surgical Pathology were searched for all cases of primary sinonasal carcinomas diagnosed from 1995 to 2011. Tissue microarrays were constructed, and NUT immunohistochemical analysis was performed. All NUT-positive cases underwent a more detailed microscopic and immunohistochemical analysis. Among 151 primary sinonasal carcinomas, only 3 (2%) were NUT positive. NUT positivity was detected in 2 of 13 (15%) carcinomas diagnosed as sinonasal undifferentiated carcinoma and in 1 of 87 (1%) carcinomas diagnosed as squamous cell carcinoma. All occurred in men (26, 33, and 48 y of age). The NMCs grew as nests and sheets of cells with a high mitotic rate and extensive necrosis. Two were entirely undifferentiated, and 1 tumor showed abrupt areas of squamous differentiation. Each case had areas of cell spindling, and 2 were heavily infiltrated by neutrophils. Immunohistochemical staining was observed for cytokeratins (3 of 3), epithelial membrane antigen (3 of 3), p63 (2 of 3), CD34 (1 of 3), and synaptophysin (1 of 3). All patients died of the disease (survival time range, 8 to 16 mo; mean, 12 mo) despite combined surgery and chemoradiation. NMC represents a rare form of primary sinonasal carcinoma, but its incidence is significantly increased in those carcinomas that exhibit an undifferentiated component. Indiscriminant analysis for evidence of the NUT translocation is unwarranted. Instead, NUT analysis can be restricted to

  11. Il corpo del mostro: retoriche del neofantastico

    Directory of Open Access Journals (Sweden)

    Simona Micali

    2014-06-01

    Full Text Available Attraverso l’analisi di alcuni testi di Julio Cortázar e Tommaso Landolfi, l’articolo illustra alcune delle strategie retoriche attraverso le quali il fantastico del Novecento affronta la rappresentazione propriamente fisica del 'corpo mostruoso', e in particolare di quello femminile, portatore di un’alterità tanto più inconcepibile e inaccettabile quanto più si impone con la propria evidenza corporea nell’orizzonte di realtà in cui il testo è collocato.

  12. Elementos del sistema electoral del Congreso Mexicano

    OpenAIRE

    Aldo Medina García; Irina Cervantes Bravo

    2013-01-01

    El presente artículo es un estudio de los componentes del sistema electoral, diseñado por el legislador mexicano para integrar al parlamento federal. Estudio desarrollado a sabiendas de la importancia que reviste el sistema electoral como un medio que permite a los ciudadanos convertir su voto expresado en las urnas en escaños a favor de determinado candidato o partido. En dicho análisis tomamos en cuenta la evolución constitucional del sistema electoral mexicano, la participación de las fuer...

  13. Archivo del Duelo

    OpenAIRE

    Ferrera, Tamara

    2010-01-01

    Photos taken from the Archive of Mourning following the March 11 terrorist attacks El Archivo del Duelo. Creaci?n de un archivo etnogr?fico de los Atentados del 11 de marzo en Madrid. Ministerio de Educaci?n y Ciencia HUM2005-03490.

  14. del desarrollo sustentable

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    Ricardo Goñi

    2006-01-01

    Full Text Available Se sintetiza una concepción del desarrollo sustentable elaborada por los autores de este trabajo desde una perspectiva multidimensional (social, económica y ambiental, fundamentalmente signada por una impronta político-social y una visión crítica del "sustentabilismo" ecologista hegemónico.

  15. Usos alternativos del chocho.

    OpenAIRE

    Villacrés, Elena; Rubio, Armando; Egas, Luis; Segovia, Gabriela

    2006-01-01

    La valorización del chocho exige conocer tecnologías de transformación, técnicas para aumentar la vida útil, minimizar los riesgos y mejorar las propiedades nutritivas, funcionales y sensoriales, con el objeto de diversificar e incrementar la utilización y el consumo del grano…

  16. The prognostic value of sentinel lymph node micrometastases in patients with invasive breast carcinoma.

    Science.gov (United States)

    Cipolla, Calogero; Graceffa, Giuseppa; La Mendola, Roberta; Fricano, Salvatore; Fricano, Martina; Vieni, Salvatore

    2015-01-01

    Il significato prognostico delle micrometastasi nel linfonodo sentinella nelle pazienti affette da carcinoma della mammella è ancora ampiamente dibattuto. Anche se, in assenza di univoche linee guida, nella pratica clinica la linfadenectomia ascellare in queste pazienti non viene più eseguita di routine. Abbiamo condotto uno studio retrospettivo su 746 patienti affette da carcinoma invasivo della mammella con linfonodi ascellari negativi, sottoposte a chirurgia conservativa o a mastectomia totale con biopsia del linfonodo sentinella. Le pazienti in cui è stata diagnostica la presenza di micrometastasi del linfonodo sentinella sono state considerate in due diversi gruppi. In un primo gruppo, trattato con linfadenectomia ascellare totale è stata valutata l’incidenza di metastasi a carico dei rimanenti linfonodi ascellari. Un secondo gruppo non ha ricevuto alcun trattamento aggiuntivo dell’ascella e le pazienti sono state seguite con controlli periodici clinico strumentali. In entrambi i gruppi è stata valutata l’incidenza di eventuali recidive ascellari. All’esame istologico estemporaneo ed al successivo esame istologico definitivo del linfonodo sentinella, in 51 pazienti (6,83%) sono state evidenziate micrometastasi, in 8 pazienti (1,07%) erano presenti cellule tumorali isolate. Quindici di queste pazienti sono state sottoposte a linfadenectomia ascellare totale. Solo in 2 casi (13,33%) sono state ritrovate metastasi a carico dei rimanenti linfonodi ascellari. Quarantaquattro pazienti non hanno ricevuto alcun trattamento aggiuntivo dell’ascella. In queste pazienti nessuna recidiva ascellare è stata registrata durante un follow-up medio di 65,3±9,65 mesi (range 42-78 mesi). Sulla base dei risultati ottenuti in questo studio ed in linea con alcuni recenti trials randomizzati si ci sentiamo di concludere che la linfadenectomia ascellare può essere evitata nei casi con micrometastasi nel linfonodo sentinella. Una sua eventuale indicazione può essere

  17. Maspin and MCM2 immunoprofiling in salivary gland carcinomas

    Directory of Open Access Journals (Sweden)

    Helmy Iman M

    2011-09-01

    Full Text Available Abstract Background The pathogenesis of salivary gland carcinomas is very complex and prognostic markers are difficult to find in these carcinomas of which the different subtypes have varying malignant potential. The study was conducted to examine the cellular distribution of maspin and MCM2 in salivary gland carcinomas and their value to predict lymph node metastasis. Materials and methods Fifty three paraffin blocks of different lesions (15 muco-epidermoid carcinoma, 14 adenoid cystic carcinoma, 3 epi-myoepithelial carcinoma, 5 salivary duct carcinoma, 5 malignant pleomorphic adenoma, 6 polymorphous low grade adenocarcinoma and 5 acinic cell carcinoma were prepared for immunohistochemical staining with maspin and MCM2 antibodies. ANOVA and Pearson correlation tests were used for the statistical analysis of the results. Results All salivary gland carcinomas express maspin and MCM2 with variable cellular localization. There was a significant difference in the expression of each antibody between mucoepidermoid carcinoma, adenoid cystic carcinoma and polymorphous low grade adenocarcinoma. No association was found between examined markers and lymph node metastasis. Conclusions Salivary gland carcinomas express maspin and MCM2 with variable levels and cellular localization, consisting important markers of biological behavior in these tumors. The level of MCM2 expression can be used in the differential diagnosis of adenoid cystic carcinoma and polymorphous low grade adenocarcinoma. Further study with large sample size is recommended to assess their value in prediction of lymph node metastasis.

  18. Desarrollo del lenguaje

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    Silva Villena Omer

    2004-06-01

    Full Text Available

    E. Owens Robert (2003. Desarrollo del lenguaje. Madrid: Pearson Education, S.A. , 2003, (463 páginas. Estamos ante un texto destinado a entender el dominio o ámbito de la "psicolingüística del desarrollo" en el que terapeutas del lenguaje, psicólogos, profesores y lingüistas encontrarán información actualizada y amplia en lo que respecta a los avances que este campo ha experimentado en las dos últimas décadas. Tanto en las cinco ediciones en lengua inglesa desde 1998 a esta esperada edición en español, el propósito del autor es entregar una visión profunda de los procesos de adquisición y desarrollo del lenguaje.

  19. Advances in hepatocellular carcinoma: Nonalcoholic steatohepatitis-related hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    Fauzia; Z; Khan; Ryan; B; Perumpail; Robert; J; Wong; Aijaz; Ahmed

    2015-01-01

    An increase in the prevalence of obesity and diabetes mellitus has been associated with the rise in non-alcoholic fatty liver disease(NAFLD). Two-thirds of the obese and diabetic populations are estimated to develop NAFLD. Currently, NAFLD is the most common etiology for chronic liver disease globally. The clinical spectrum of NAFLD ranges from simple steatosis, an accumulation of fat greater than 5% of liver weight, to nonalcoholic steatohepatitis(NASH), a more aggressive form with necroinflammation and fibrosis. Among the patients who develop NASH, up to 20% may advance to cirrhosis and are at risk for complications of end-stage liver disease. One of the major complications observed in patients with NASH-related cirrhosis is hepatocellular carcinoma(HCC), which has emerged as the sixth most common cancer and second leading etiology of cancer-related deaths worldwide. The incidence of HCC in the United States alone has tripled over the last three decades. In addition, emerging data are suggesting that a small proportion of patients with NAFLD may be at higher risk for HCC in the absence of cirrhosis - implicating obesity and diabetes mellitus as potential risk factors for HCC.

  20. Characteristics of epstein barr virus variants associated with gastric carcinoma in Southern Tunisia

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    Gargouri Ali

    2011-11-01

    Full Text Available Abstract Backgroud EBV-associated Gastric Carcinoma (EBVaGC has a distinct clinical features and its prevalence is variable worldwide. Results To determine the prevalence of EBVaGC in Tunisia, EBV-encoded small RNA (EBER expression was assessed in 81 gastric carcinoma (GC specimens. The nuclear EBER expression was detected in 12 out of 81 GC cases (14.81% and concordance between the score range of EBER staining and the number of EBV DNA copies as estimate by QPCR is observed. On the other hand, we found that EBVaGC strongly correlated with age at diagnosis, and weakly with tumor differentiation and venous invasion. Furthermore, the EBVaGC specimens were subjected to determine the EBV DNA polymorphisms. Our results show a unique genetic profile of the EBV strains regarding the A and D types, the F prototype, the retention of XhoI restriction site and the 30 bp del-LMP1 variant. According to our previous studies on nasopharyngeal carcinoma (NPC, we suggested that EBV strains associated to GC and NPC shared some similarities in Tunisian patients. Conclusion The prevalence of EBVaGC is of 14.81% in the southern Tunisia and that common EBV strain are associated with both NPC and GC which are likely to differ from Asian strains. Our findings support therefore a certain geographical distribution of EBV strains which is not restricted to EBV-associated malignancies.

  1. Carcinoma adenoide quístico parotídeo: soluciones estéticas y funcionales

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    Raquel Villar

    2014-07-01

    Full Text Available El carcinoma adenoide quístico supone el 10-30% de las neoplasias malignas parotídeas, su tratamiento se basa en una parotidectomía que incluya el tumor con un adecuado margen de seguridad y la radioterapia postoperatoria dado que permite mejorar el control locorregional de la enfermedad. Revisamos un caso que permite exponer el manejo de las secuelas funcionales y estéticas derivadas de su tratamiento. Consideramos adecuada la reconstrucción inmediata del nervio facial cuando se encuentra clínicamente afecto o englobado por el tumor; así como suplir el defecto de volumen posparotidectomía con un colgajo local. Proponemos la anastomosis nerviosa con injerto de nervio sural de las ramas del nervio facial afectas y el relleno del defecto volumen posparotidectomía con un colgajo de fascia temporo-parietal.

  2. Familial pancreatic carcinoma in Jews.

    Science.gov (United States)

    Lynch, Henry T; Deters, Carolyn A; Lynch, Jane F; Brand, Randall E

    2004-01-01

    Pancreatic cancer (PC) is the most fatal of all gastrointestinal cancers, wherein its mortality compares strikingly with its incidence. Unfortunately, 80-90% of PCs are diagnosed in the nonresectable stage. While the lifetime risk of PC in developed countries is approximately 1-3%, it is the fifth most common cause of cancer deaths among both males and females in Western countries. It occurs in excess in Jews. Approximately 5-10% of PC shows familial clustering. Examination of such familial clusters must take into consideration cancers of diverse anatomic sites, such as malignant melanoma in the familial atypical multiple melanoma (FAMMM) syndrome due to the CDKN2A (p16) germline mutation, and combinations of colorectal and endometrial carcinoma, ovarian carcinoma, and several other cancers in hereditary nonpolyposis colorectal cancer (HNPCC), which are due to mismatch repair germline mutations, the most common of which are MSH2 and MLH1 . Other hereditary disorders predisposing to PC include Peutz-Jeghers syndrome, due to the STK11 mutation, familial pancreatitis due to the cationic trypsinogen gene, site-specific familial pancreatic cancer which may be due to the 4q32-34 mutation, hereditary breast-ovarian cancer (HBOC) syndrome that is due to BRCA2 and possibly some families with HBOC that is due to BRCA1 , familial adenomatous polyposis due to the ATP gene, and ataxia telangiectasia due to the ATM germline mutation. This extant heterogeneity mandates that the physician be knowledgeable about these PC-prone syndromes which play such an important role when considering the differential diagnosis of hereditary PC. Unfortunately, there are no PC screening programs with acceptable sensitivity and specificity. However, the gold standard for screening at this time is endoscopic ultrasound. Clearly, there is a great need for the development of novel screening approaches with acceptable sensitivity and specificity. Further research is needed to elucidate those etiologic

  3. OBJETIVO DEL DESARROLLO DEL MILENIO 7

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    Margarita M. Pérez O.

    2013-10-01

    Full Text Available Los Objetivos de Desarrollo del Milenio, también conocidos como los Objetivos del Milenio, constituyeron las metas finales que aprobaron los dirigentes mundiales, 189 jefes de estado y de gobierno en la Cumbre del Milenio de las Naciones Unidas celebrada en Nueva York en el año 2000, en la cual los Estados miembros de la organización reafirmaron su compromiso de luchar por un mundo en el que el desarrollo sostenible y la eliminación de la pobreza tuvieran máxima prioridad1 . En la cumbre se definió la Declaración del Milenio, la cual detalla los objetivos, principios, valores, metas y acciones para erradicar la pobreza Mundial hacia el año 2015, todos ellos ratificados con alto interés y acción estratégica de carácter global, como marco para la medición de los progresos en materia de desarrollo.

  4. Elementos del sistema electoral del Congreso Mexicano

    Directory of Open Access Journals (Sweden)

    Aldo Medina García

    2013-08-01

    Full Text Available El presente artículo es un estudio de los componentes del sistema electoral, diseñado por el legislador mexicano para integrar al parlamento federal. Estudio desarrollado a sabiendas de la importancia que reviste el sistema electoral como un medio que permite a los ciudadanos convertir su voto expresado en las urnas en escaños a favor de determinado candidato o partido. En dicho análisis tomamos en cuenta la evolución constitucional del sistema electoral mexicano, la participación de las fuerzas minoritarias en la integración del Senado y de la Cámara de Diputados, la división que se hace del territorio en circunscripciones electorales, la barrera electoral que se fija a los partidos políticos para acceder a la representación en el Parlamento, la fórmula de asignación que se aplica a la votación obtenida, para finalmente concluir que el sistema electoral mexicano es esencialmente mayoritario aun cuando se vista de proporcional.

  5. Elementos del sistema electoral del Congreso Mexicano

    Directory of Open Access Journals (Sweden)

    Aldo Medina García

    2013-07-01

    Full Text Available El presente artículo es un estudio de los componentes del sistema electoral, diseñado por el legislador mexicano para integrar al parlamento federal. Estudio desarrollado a sabiendas de la importancia que reviste el sistema electoral como un medio que permite a los ciudadanos convertir su voto expresado en las urnas en escaños a favor de determinado candidato o partido. En dicho análisis tomamos en cuenta la evolución constitucional del sistema electoral mexicano, la participación de las fuerzas minoritarias en la integración del Senado y de la Cámara de Diputados, la división que se hace del territorio en circunscripciones electorales, la barrera electoral que se fija a los partidos políticos para acceder a la representación en el Parlamento, la fórmula de asignación que se aplica a la votación obtenida, para finalmente concluir que el sistema electoral mexicano es esencialmente mayoritario aun cuando se vista de proporcional.

  6. La crisi del diritto del lavoro

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    Alessandro Garilli

    2012-01-01

    Full Text Available Riassunto - L’Autore ripercorre in chiave critica l’evoluzione delle politiche legislative in materia di lavoro, alla luce dell’attuale fase di crisi economico finanziaria. Nell’esaminare i principali interventi normativi attuati da inizio secolo, l’Autore mette in evidenza le scelte di metodo e gli elementi di continuità che accomunano i vari provvedimenti, individuandoli nell’affannosa ricerca del punto di equilibrio tra flessibilità e garantismo. La riflessione si chiude con alcuni interrogativi sulle ultime linee di riforma del mercato del lavoro e con l’auspicio che, anche al cospetto delle imprescindibili ragioni dell’economia, il diritto del lavoro possa continuare a svolgere il proprio tradizionale ruolo di disciplina di tutela della persona.   Abstract - The author analyzes, with a critically oriented approach, the development of the employment law, in the light of the current economic and financial crisis. In examining the main regulatory measures implemented since the beginning of the century, the author highlights the methodological choices and the elements of continuity that unite the various measures, focusing them in a hard research of a point of balance between flexibility and security. The discussion concludes with some questions about the last lines of the reform of the labor market and with the hope that, even in the face of compelling reasons of economy, labor law can continue to play its traditional role of governing the protection of person.

  7. Differentiated thyroid carcinoma : treatment and clinical consequences of therapy

    NARCIS (Netherlands)

    Hoftijzer, Hendrieke Catherijn

    2011-01-01

    The first chapters of this thesis describe the treatment of radioiodine non-avid thyroid carcinoma with the tyrosine kinase inhibitor sorafenib. The remainder of the thesis describes the clinical consequences of the treatment of thyroid carcinoma.

  8. Targeted Therapy for Renal Cell Carcinoma: a Prospective study

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    Robin Joshi

    2015-06-01

    Conclusions: In our cohort, use of sunitinib showed similar outcome to previously published articles. Our study supports the use of sunitinib in metastatic renal cell carcinoma. Keywords: metastatic renal cell carcinoma; sunitinib; tyrosine kinase inhibitor.

  9. Metastatic Renal Cell Carcinoma to the Pancreas: A Review.

    Science.gov (United States)

    Cheng, Shaun Kian Hong; Chuah, Khoon Leong

    2016-06-01

    The pancreas is an unusual site for tumor metastasis, accounting for only 2% to 5% of all malignancies affecting the pancreas. The more common metastases affecting the pancreas include renal cell carcinomas, melanomas, colorectal carcinomas, breast carcinomas, and sarcomas. Although pancreatic involvement by nonrenal malignancies indicates widespread systemic disease, metastatic renal cell carcinoma to the pancreas often represents an isolated event and is thus amenable to surgical resection, which is associated with long-term survival. As such, it is important to accurately diagnose pancreatic involvement by metastatic renal cell carcinoma on histology, especially given that renal cell carcinoma metastasis may manifest more than a decade after its initial presentation and diagnosis. In this review, we discuss the clinicopathologic findings of isolated renal cell carcinoma metastases of the pancreas, with special emphasis on separating metastatic renal cell carcinoma and its various differential diagnoses in the pancreas.

  10. Diagnostic utility of hepatocyte nuclear factor 1-beta immunoreactivity in endometrial carcinomas: lack of specificity for endometrial clear cell carcinoma.

    Science.gov (United States)

    Fadare, Oluwole; Liang, Sharon X

    2012-12-01

    Hepatocyte nuclear factor 1-beta (HNF1β) has recently emerged as a relatively sensitive and specific marker for ovarian clear cell carcinoma. The purpose of this study is to assess the diagnostic utility of this marker for endometrial clear cell carcinoma. Immunohistochemical analysis was performed on 75 endometrial tissues using a goat polyclonal antibody raised against a peptide mapping at the C-terminus of human HNF1β protein. The 75 cases included 15 clear cell carcinomas, 20 endometrioid carcinomas, 15 endometrial serous carcinomas/uterine papillary serous carcinomas, 20 cases of normal endometrium, 2 cases of clear cell metaplasia, and 3 cases of Arias Stella reaction. Staining interpretations were based on a semiquantitative scoring system, a 0 to 12+ continuous numerical scale that was derived by multiplying the extent of staining (0 to 4+ scale) by the intensity of staining (0 to 3+ scale) for each case. HNF1β expression was found to be present in a wide spectrum of tissues. Twenty-seven (54%) of the 50 carcinomas displayed at least focal nuclear HNF1β expression, including 11 (73%) of 15, 9 (60%) of 15, and 7 (35%) of 20 clear cell, serous, and endometrioid carcinomas, respectively. The average nuclear staining scores for clear cell carcinomas, endometrioid carcinomas, and serous carcinomas were 5.2, 1.4, and 4.1, respectively. Clear cell carcinomas and endometrioid carcinomas displayed statistically significant differences regarding their nuclear staining scores (P = 0.0027), but clear cell carcinomas and endometrial serous carcinomas did not (P = 0.45). The calculated sensitivity of any nuclear HNF1β expression in classifying a carcinoma as being of the clear cell histotype was 73%, whereas the specificity was 54%. Nineteen of 20 normal endometrium samples displayed at least focal nuclear expression of HNF1β, and this expression was often diffuse. The 5 cases of benign histologic mimics of clear cell carcinomas (Arias Stella reaction and clear

  11. Influencia del manejo del riego en el rendimiento del cafeto

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    Enrique Cisneros Z.

    2006-01-01

    Full Text Available El trabajo trata sobre una investigación de manejo del riego en el cafeto (Coffea Arábica Lin Var. Caturra Rojo de 12 años de edad en la provincia de Pinar del Rió, plantado sobre un suelo Ferralítico Amarillento Lixiviado Cuarcitico. Fueron estudiados 6 tratamientos con un diseño experimental de bloques al azar, el momento de riego y el volumen de aplicación se controló por el método gravimétrico. La técnica de riego empleada fue la microaspersión bajo el principio de cobertura total (no localizada. Como promedio de los cuatro años de estudio se obtuvo que el mejor tratamiento fue el de regar todo el año al 85 % del límite superior de agua disponible, donde fue necesario aplicar 21 riegos con norma parcial neta de 355 m3/ha y norma total neta de 7 455 m3/ha, esta variante produjo 17,94 t/ha de café cereza para un incremento de 3,98 t/ha (29 % con respecto al secano. La rentabilidad más alta se detectó en el tratamiento de riego todo el año (Tratamiento 1 con 236,93 % en comparación con el testigo (Tratamiento 6

  12. Mucinous carcinoma of the breast is genomically distinct from invasive ductal carcinomas of no special type.

    Science.gov (United States)

    Lacroix-Triki, Magali; Suarez, Paula H; MacKay, Alan; Lambros, Maryou B; Natrajan, Rachael; Savage, Kay; Geyer, Felipe C; Weigelt, Britta; Ashworth, Alan; Reis-Filho, Jorge S

    2010-11-01

    Mucinous carcinomas are a rare entity accounting for up to 2% of all breast cancers, which have been shown to display a gene expression profile distinct from that of invasive ductal carcinomas of no special type (IDC-NSTs). Here, we have defined the genomic aberrations that are characteristic of this special type of breast cancer and have investigated whether mucinous carcinomas might constitute a genomic entity distinct from IDC-NSTs. Thirty-five pure and 11 mixed mucinous breast carcinomas were assessed by immunohistochemistry using antibodies against oestrogen receptor (ER), progesterone receptor, HER2, Ki67, cyclin D1, cortactin, Bcl-2, p53, E-cadherin, basal markers, neuroendocrine markers, and WT1. Fifteen pure mucinous carcinomas and 30 grade- and ER-matched IDC-NSTs were microdissected and subjected to high-resolution microarray-based comparative genomic hybridization (aCGH). In addition, the distinct components of seven mixed mucinous carcinomas were microdissected separately and subjected to aCGH. Pure mucinous carcinomas consistently expressed ER (100%), lacked HER2 expression (97.1%), and showed a relatively low level of genetic instability. Unsupervised hierarchical cluster analysis revealed that pure mucinous carcinomas were homogeneous and preferentially clustered together, separately from IDC-NSTs. They less frequently harboured gains of 1q and 16p and losses of 16q and 22q than grade- and ER-matched IDC-NSTs, and no pure mucinous carcinoma displayed concurrent 1q gain and 16q loss, a hallmark genetic feature of low-grade IDC-NSTs. Finally, both components of all but one mixed mucinous carcinoma displayed similar patterns of genetic aberrations and preferentially clustered together with pure mucinous carcinomas on unsupervised clustering analysis. Our results demonstrate that mucinous carcinomas are more homogeneous between themselves at the genetic level than IDC-NSTs. Both components of mixed mucinous tumours are remarkably similar at the

  13. Surgical management of hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    Tony CY Pang; Vincent WT Lam

    2015-01-01

    Hepatocellular carcinoma (HCC) is the second mostcommon cause of death from cancer worldwide.Standard potentially curative treatments are eitherresection or transplantation. The aim of this paper isto provide an overview of the surgical managementof HCC, as well as highlight current issues in hepaticresection and transplantation. In summary, due to therelationship between HCC and chronic liver disease,the management of HCC depends both on tumourrelatedand hepatic function-related considerations. Assuch, HCC is currently managed largely through nonsurgicalmeans as the criteria, in relation to the aboveconsiderations, for surgical management is still largelyrestrictive. For early stage tumours, both resectionand transplantation offer fairly good survival outcomes(5 years overall survival of around 50%). Selectiontherefore would depend on the level of hepatic functionderangement, organ availability and local expertise.Patients with intermediate stage cancers have limitedoptions, with resection being the only potential forcure. Otherwise, locoregional therapy with transarterialchemoembolization or radiofrequency ablation are viableoptions. Current issues in resection and transplantationare also briefly discussed such as laparoscopic resection,ablation vs resection, anatomical vs non-anatomicalresection, transplantation vs resection, living donor livertransplantation and salvage liver transplantation.

  14. Targeted therapies in hepatocellular carcinoma.

    Science.gov (United States)

    Bronte, F; Bronte, G; Cusenza, S; Fiorentino, E; Rolfo, C; Cicero, G; Bronte, E; Di Marco, V; Firenze, A; Angarano, G; Fontana, T; Russo, A

    2014-01-01

    The onset of hepatocellular carcinoma (HCC) is related to the development of non-neoplastic liver disease, such as viral infections and cirrhosis. Even though patients with chronic liver diseases undergo clinical surveillance for early diagnosis of HCC, this cancer is often diagnosed in advanced stage. In this case locoregional treatment is not possible and systemic therapies are the best way to control it. Until now sorafenib, a Raf and multi-kinase inhibitor has been the best, choice to treat HCC systemically. It showed a survival benefit in multicenter phase III trials. However the proper patient setting to treat is not well defined, since the results in Child-Pugh B patients are conflicting. To date various new target drugs are under developed and other biological treatments normally indicated in other malignancies are under investigation also for HCC. These strategies aim to target the different biological pathways implicated in HCC development and progression. The target drugs studied in HCC include anti-VEGF and anti-EGFR monoclonal antibodies, tyrosine kinase inhibitors and mTOR inhibitors. The most important challenge is represented by the best integration of these drugs with standard treatments to achieve improvement in overall survival and quality of life.

  15. Hipoglucemia inducida por carcinoma adrenal

    Directory of Open Access Journals (Sweden)

    Jimena Soutelo

    2013-08-01

    Full Text Available El carcinoma suprarrenal es una neoplasia maligna infrecuente y de mal pronóstico. La presentación clínica más común es originada por la producción hormonal excesiva, mientras que el desarrollo de hipoglucemia sintomática es excepcional. Presentamos el caso de una mujer de 37 años que ingresó al hospital por síntomas de hipoglucemias graves, hipertensión arterial, hipopotasemia y amenorrea secundaria. En el laboratorio se halló hipoglucemia con insulina inhibida y niveles de andrógenos en rango tumoral. La tomografía computarizada (TC de abdomen y pelvis mostró voluminosa formación heterogénea de aspecto sólido sin plano de clivaje con respecto al parénquima hepático e intenso realce con contraste. Luego de la extirpación de la masa retroperitoneal, evolucionó con valores de glucemia y potasemia normales, estabilizó la presión arterial y recuperó los ciclos menstruales.

  16. Interventional treatments for hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    Yong-Song Guan; Yuan Liu

    2006-01-01

    BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most frequent primary malignant tumors in the world. Hepatic resection and liver transplantation are considered optimal for potential treatment of HCC. However, only 20%of HCCs can be surgically treated. And most of surgically-noneligible patients have to receive interventional managements including local ablation and transarterial chemoembolization (TACE). In this paper, we review the interventional treatments of HCC. DATA SOURCES:A literature search of PubMed database was conducted and research articles were reviewed. RESULTS: Percutaneous ethanol injection (PEI) is usually applied to small HCC for a complete necrosis. Radiofrequency ablation, an alternative to PEI, also causes tumor necrosis and needs fewer times of ablation. Other methods such as acetic acid injection, laser, microwave, etc have enriched local ablation for HCC. High intensity focus ultrasound (HIFU) is thought to be promising. TACE, another common modality, can improve the survival rate of patients with HCC. The newly developed embolic agents and adjuvant rAd-p53 gene therapy are well reported. CONCLUSIONS:Surgically-noneligible HCC can be treated with interventional procedures. Each method has its advantages and disadvantages. However, it is still pressing to develop ablative methods as well as new embolic agents for a better prognosis of HCC.

  17. CARCINOMA ESCAMOCELULAR DE LABIO SUPERIOR EN PACIENTE ADOLESCENTE Squamous cell carcinoma of the upper lip in an adolescent patient

    Directory of Open Access Journals (Sweden)

    Enrique Cadena-Piñeros

    2011-12-01

    Full Text Available El cáncer de la cavidad oral es un problema mayor de salud pública en todo el mundo, como lo describieron AlRawi y Talabani. Es más frecuente en pacientes después de la quinta década de la vida, con una razón hombre a Sin embargo ha aumentado la frecuencia en este grupo de edad. Se presenta el caso de una joven de 11 años, con carcinoma escamocelular de labio superior. Mediante linfogammagrafia preoperatoria se determinó la necesidad de disección selectiva de cuello supraomohioidea, excluyéndose el grupo parotídeo, a pesar de la localización del tumor, con lo cual se disminuyó en forma muy importante la morbilidad operatoria. Se resecó el tumor del labio superior con cirugía micrográfica de Mohs y posteriormente se rotó un colgajo de Yotsuyanagi. Seguimiento postoperatorio durante 18 meses sin evidencia de recaída local, regional, ni a distancia. Los autores recomiendan que el manejo de casos similares sea realizado en forma multidisciplinaria (dermatología, cirugía de cabeza y cuello, medicina nuclear, cirugía plástica, con lo cual se podrían disminuir la morbilidad y las alteraciones funcionales, aumentando la probabilidad de sobrevida libre de recurrencia.Cancer of the oral cavity is a major public health problem around the world (Al-Rawi and Talabani; it occurs more frequently in patients after the fifth decade of life (2:1 male:female ratio. This entity is very unusual in children; however, frequency has become increased in this agegroup. This article presents the case of an 11-year-old child suffering squamous cell carcinoma of the upper lip. Preoperative lymphogammagraphy identified the need for selective dissection of the supraomohyoideal neck, excluding the parothydeal group, in spite of the tumour's location, thereby greatly reducing operative morbidity. Mohs micrographic surgery was used for tumour resection of the upper lip and then a Yotsuyanagi flap was rotated. 18-month post-operation follow-up revealed no

  18. EXPRESSION AND SIGNIFICANCE OF PTEN IN ENDOMETRIAL CARCINOMA

    Institute of Scientific and Technical Information of China (English)

    GE Xiu-jun; LIU Zhi-hui; LI Ying-yong; Gao Rui-ping

    2005-01-01

    Objective: To investigate the expression of PTEN in endometrial carcinoma and its clinical significance. Methods: Reverse transcriptase-polymerase chain reaction and Western-blot methods were used to detect PTEN expression in 28 cases of endometrial carcinoma. Results: mRNA and protein expression levels of PTEN in endometrial carcinomas were significantly lower than those in normal endometrium (P<0.01). Conclusion: PTEN may play an important role in the tumorigenesis of endometrial carcinoma.

  19. Apocrine carcinoma arising in a complex fibroadenoma: a case report.

    Science.gov (United States)

    Mele, Marco; Vahl, Pernille; Funder, Jonas Amstrup; Sorensen, Anne Schmidt; Jensen, Vibeke

    2014-01-01

    A carcinoma arising in a fibroadenoma is a rare event, which often entails a diagnostic challenge. The most common type is the lobular carcinoma and secondary a ductal carcinoma. We present an extremely rare case of malignant development of an invasive apocrine carcinoma in a complex fibroadenoma and underline the importance for clinicians to recognize the possibility of benign and malignant co-existence especially in older women.

  20. Epstein-Barr Virus in Gastric Carcinoma

    Directory of Open Access Journals (Sweden)

    Jun Nishikawa

    2014-11-01

    Full Text Available The Epstein-Barr virus (EBV is detected in about 10% of gastric carcinoma cases throughout the world. In EBV-associated gastric carcinoma, all tumor cells harbor the clonal EBV genome. Gastric carcinoma associated with EBV has distinct clinicopathological features, occurs predominately in men and in younger-aged individuals, and presents a generally diffuse histological type. Most cases of EBV-associated gastric carcinoma exhibit a histology rich in lymphocyte infiltration. The immunological reactiveness in the host may represent a relatively preferable prognosis in EBV-positive cases. This fact highlights the important role of EBV in the development of EBV-associated gastric carcinoma. We have clearly proved direct infection of human gastric epithelialcells by EBV. The infection was achieved by using a recombinant EBV. Promotion of growth by EBV infection was observed in the cells. Considerable data suggest that EBV may directly contribute to the development of EBV-associated GC. This tumor-promoting effect seems to involve multiple mechanisms, because EBV affects several host proteins and pathways that normally promote apoptosis and regulate cell proliferation.

  1. Metastatic urachal carcinoma in bronchial brush cytology

    Directory of Open Access Journals (Sweden)

    Fatima Zahra Aly

    2013-01-01

    Full Text Available Urachal carcinoma is rare comprising less than 1% of all bladder carcinomas. Metastases of urachal carcinoma have been reported to meninges, brain, ovary, lung, and maxilla. Cytologic features of metastatic urachal carcinoma have not been previously reported. We present a case of metastatic urachal adenocarcinoma in bronchial brushings and review the use of immunohistochemistry in its diagnosis. A 47-year-old female was seen initially in 2007 with adenocarcinoma of the bladder dome for which she underwent partial cystectomy. She presented in 2011 with a left lung mass and mediastinal adenopathy. Bronchoscopy showed an endobronchial lesion from which brushings were obtained. These showed numerous groups of columnar cells with medium sized nuclei and abundant cytoplasm. The cells were positive for CK20 and CDX2 and negative for CK7. The cytomorphological findings were similar to those in the previous resection specimen and concurrent biopsy. This is the first case report of bronchial brushings containing metastatic urachal carcinoma. No specific immunohistochemical profile is available for its diagnosis. The consideration of a second primary was a distinct possibility in this case due to the lapse of time from primary resection, absence of local disease, and lack of regional metastases.

  2. Black Thyroid Associated with Thyroid Carcinoma

    Directory of Open Access Journals (Sweden)

    Emad Kandil

    2010-01-01

    Full Text Available Objective. Black thyroid is a rare pigmented change seen almost exclusively in patients upon minocycline ingestion, and the process has previously been thought to be generally benign. There have been 61 reported cases of black thyroid. We are aware of 13 cases previously reported in association with thyroid carcinoma. This paper reports six patients with black thyroid pigmentation in association with thyroid carcinoma. Design. The medical records of six patients who were diagnosed with black thyroid syndrome, all of whom underwent thyroid surgery, were reviewed. Data on age, gender, race, preoperative fine needle aspiration biopsy (FNA, thyroid function levels, and pathology reports were collected. Main Outcome. The mean age was 60 years. There were 5 females, 4 of whom were African American. All patients were clinically and biochemically euthyroid. Black pigmentation was not diagnosed in preoperative FNA, and only one patient had a preoperative diagnosis of papillary thyroid carcinoma. The other patients underwent surgery and were found to have black pigmentation of the thyroid associated with carcinoma. Conclusions. FNA does not diagnose black thyroid, which is associated with thyroid carcinoma. Thyroid glands with black pigmentation deserve thorough pathologic examination, including several sections of each specimen.

  3. Serum biochemical markers in carcinoma breast.

    Directory of Open Access Journals (Sweden)

    Seth R

    2003-08-01

    Full Text Available BACKGROUND: Despite the extensive research for many years throughout the world, the etiopathogenesis of cancer still remains obscure. For the early detection of carcinoma of various origins, a number of biochemical markers have been studied to evaluate the malignancy. AIM: To analyse serum gamma glutamyl transpeptidase (GGTP, lactate dehydrogenase (LDH and superoxide dismutase (SOD in carcinoma breast patients. SETTINGS & DESIGN: The serum biochemical markers were estimated in twenty five histopathologically confirmed patients with carcinoma breast and equal number of healthy age- matched individuals served as control. MATERIAL & METHODS: Serum gamma glutamyl transpeptidase (GGTP, lactate dehydrogenase (LDH and superoxide dismutase (SOD were estimated and their sensitivity determined. Statistics: Data was analysed with student′s ′t′-test and sensitivity score of these markers was determined. RESULTS & CONCLUSIONS: The mean serum GGTP, LDH and SOD activities in patients with carcinoma breast were tremendously increased as compared to controls, and a steady increase was observed in their activities from stage I through stage IV as well as following distant metastasis. Serum GGTP, LDH and SOD might prove to be most sensitive biomarkers in carcinoma breast in early detection of the disease.

  4. Epstein-Barr Virus in Gastric Carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Nishikawa, Jun, E-mail: junnis@yamaguchi-u.ac.jp [Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Minami-Kogushi 1-1-1, Ube, Yamaguchi 755-8505 (Japan); Yoshiyama, Hironori; Iizasa, Hisashi; Kanehiro, Yuichi [Department of Microbiology, Shimane University Faculty of Medicine, 89-1 Enyacho, Izumo City, Shimane 693-8501 (Japan); Nakamura, Munetaka; Nishimura, Junichi; Saito, Mari; Okamoto, Takeshi [Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Minami-Kogushi 1-1-1, Ube, Yamaguchi 755-8505 (Japan); Sakai, Kouhei; Suehiro, Yutaka; Yamasaki, Takahiro [Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, Minami-Kogushi 1-1-1, Ube, Yamaguchi 755-8505 (Japan); Oga, Atsunori [Department of Pathology, Yamaguchi University Graduate School of Medicine, Minami-Kogushi 1-1-1, Ube, Yamaguchi 755-8505 (Japan); Yanai, Hideo [Department of Clinical Research, National Hospital Organization Kanmon Medical Center, 1-1 Sotoura, Chofu, Shimonoseki, Yamaguchi 752-8510 (Japan); Sakaida, Isao [Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Minami-Kogushi 1-1-1, Ube, Yamaguchi 755-8505 (Japan)

    2014-11-07

    The Epstein-Barr virus (EBV) is detected in about 10% of gastric carcinoma cases throughout the world. In EBV-associated gastric carcinoma, all tumor cells harbor the clonal EBV genome. Gastric carcinoma associated with EBV has distinct clinicopathological features, occurs predominately in men and in younger-aged individuals, and presents a generally diffuse histological type. Most cases of EBV-associated gastric carcinoma exhibit a histology rich in lymphocyte infiltration. The immunological reactiveness in the host may represent a relatively preferable prognosis in EBV-positive cases. This fact highlights the important role of EBV in the development of EBV-associated gastric carcinoma. We have clearly proved direct infection of human gastric epithelialcells by EBV. The infection was achieved by using a recombinant EBV. Promotion of growth by EBV infection was observed in the cells. Considerable data suggest that EBV may directly contribute to the development of EBV-associated GC. This tumor-promoting effect seems to involve multiple mechanisms, because EBV affects several host proteins and pathways that normally promote apoptosis and regulate cell proliferation.

  5. Del Ver y del Decir en Merleau-Ponty

    OpenAIRE

    Mont Verdaguer, Maria

    2016-01-01

    [spa] El presente trabajo busca determinar la relación entre los ejes del lenguaje y la visión como entidades propias y fundantes del saber a través de la obra de Merleau-Ponty. Se trata pues de comprender cómo y en qué medida las dimensiones lingüística y visual del conocer construyen en el hombre un poso de conocimiento, un asiento positivo del saber. A partir del estudio de la evolución del primer al segundo Merleau-Ponty y del anàlisis de algunos de sus conceptos fundamentales tales co...

  6. Outcome of Patients With Metastatic Sarcomatoid Renal Cell Carcinoma: Results From the International Metastatic Renal Cell Carcinoma Database Consortium

    DEFF Research Database (Denmark)

    Kyriakopoulos, Christos E; Chittoria, Namita; Choueiri, Toni K

    2015-01-01

    BACKGROUND: Sarcomatoid renal cell carcinoma is associated with poor prognosis. Data regarding outcome in the targeted therapy era are lacking. PATIENTS AND METHODS: Clinical, prognostic, and treatment parameters in metastatic renal cell carcinoma patients with and without sarcomatoid histology t...

  7. Aspectos sociales del emprendedor

    OpenAIRE

    2014-01-01

    Hoy en día es de vital importancia el papel de los emprendedores en la sociedad. Por lo que, es importante analizar los aspectos sociales que les rodean, los que influyen para tomar la decisión de crear una nueva empresa y adentrarse en el mundo del emprendimiento. A partir de esta realidad, se busca explicar, mediante un estudio bibliográfico de la literatura científica del emprendimiento, y más tarde con un análisis de datos obtenidos del GEM 2012, GEM 2013, y otros facilitados por el p...

  8. Envejecimiento del sistema cardiovascular

    OpenAIRE

    2005-01-01

    Las principales características del envejecimiento del sistema cardiovascular reflejan cambios anatómicos y estructurales a nivel de la pared de los vasos, la relajación miocárdica, el llenado ventricular y la respuesta a las catecolaminas . Muchos de los cambios funcionales asociados con la edad están relacionados con estos fenómenos. Esta revisión describe los cambios relacionados con el envejecimiento a nivel estructural y funcional del sistema cardiovascular, sus posibles factores etiológ...

  9. Tratamiento del pie equino

    OpenAIRE

    Robles, Fernanda

    2012-01-01

    El pie equino varo es una patología frecuente en los pacientes con Encefalopatía crónica no evolutiva (ECNE).Se observó que existe una mayor frecuencia en el sexo masculino. Se realizó un estudio descriptivo, comparativo y secundario, durante el periodo de septiembre del 2006 a septiembre del 2011, con un total de 125 pacientes con Ecne, de los cuales se encontraron 101 con pie equino varo congénito. Objetivo: observar los resultados obtenidos en la rehabilitación del pie equino, en niños de ...

  10. Aspectos quirales del grafeno

    OpenAIRE

    Torres-Silva,H; J.L. López-Bonilla

    2011-01-01

    El grafeno, una alotropía del carbono, es un logro de los avances de la nanotecnología. Siendo una nanoestructura, este componente estructural del grafito posee propiedades que lo han convertido en un potencial sustituto del silicio en el diseño y fabricación de circuitos integrados. Este artículo resume sus orígenes, posibilidades teóricas, así como sus propiedades prácticas. Se presentan aspectos teóricos de quiralidad en el grafeno, específicamente una teoría quiral para el grafeno, vincul...

  11. La voz del delator

    OpenAIRE

    Mario Bernardo Figueroa Muñoz

    2009-01-01

    La palabra del delator es degradada:deja de constituir un mensajeen el que se articula el deseo delsujeto para quedar convertida enobjeto. El delator, reducido a puravoz, es instrumentalizado paracompletar al Otro. La voz es causaen el imperativo al heroísmo, a laobediencia. Aquello del cuerpoque debe ser sacrificado para queel lenguaje opere en el sujeto, esrecuperado en la delación. A estosplanteamientos se llega a partir delanálisis del material de divulgaciónde una campaña para fomentarla...

  12. Hipertrofia del proceso coronoideo

    Directory of Open Access Journals (Sweden)

    E. Moretti

    2014-06-01

    Full Text Available Entre las principales causas de la reducción progresiva y sin dolor de la apertura bucal en pacientes jóvenes, se encuentra la denominada hipertrofia del proceso coronoideo. Se trata de una patología secundaria a la elongación anormal del proceso coronoideo por el crecimiento del hueso que provoca una alteración mecánica al abrir la boca. Presentamos nuestra experiencia con la recogida de 5 casos clínicos.

  13. Secretos del test extraterrestre

    OpenAIRE

    Hybris, Profesor

    2016-01-01

    Por el parasicólogo y astrólogo Profesor Hybris La prensa mundial ha revelado recientemente los detalles del extraño caso de Asdrúbal Carrasquilla, el camionero chileno que desapareciera misteriosamente en su país, ante el asombro de varios automovilistas que lo vieron desvanecerse en el aire, junto con su camión, en la muy transitada vía entre Las Fraguas y San Venancio, en la provincia chilena de Valverde. El hecho ocurrió a las 16.55 del 15 de diciembre de 1981. A las 16.58 del mismo día, ...

  14. Sin razones del derecho

    Directory of Open Access Journals (Sweden)

    Santiago Salas Espinosa

    2009-07-01

    Full Text Available El presente ensayo pretende abarcar algunos puntos de vista (no todos, en lo concerniente a la Razón de la Sinrazón del Derecho. Sí, por decirlo así, se puede o ha podido pensarse en una razón del Derecho, por qué cuánto más no, en una “sinrazón” o más bien unas cuántas “sinrazones” del mismo.

  15. Estenosis malignas del estomago

    OpenAIRE

    Jácome Valderrama, José A.; Gutiérrez Arango, Roberto; Parra Torres, Augusto; Forero Laverde, Humberto; Medina Medina, Julio

    2011-01-01

    Al hablar de estenosis malignas del estomago, no vamos a referirnos a las obstrucciones producidas por lesiones extrínsecas, en las cuales influye como causa determinante el fenómeno mecánico de compresión exterior, sino a aquellas lesiones que primitivamente se originan en los tejidos del estomago, vale decir en sus paredes u orificios. Las estenosis intrínsecas malignas del estomago son producidas generalmente por tumores derivados de sus diferentes tejidos y por consiguiente se agrupan en ...

  16. EL PROBLEMA DEL PROVEEDOR

    OpenAIRE

    Raffo Lecca, Eduardo; FII-UNMSM

    2014-01-01

    Este es un famoso problema desde los anales de la literatura en investigación de operaciones. G. Dantzig en [1] se refiere a W.W. Jacobs con su paper "The Caterer Problem" del Nav. Res. Log. Quart. 1, 1954; como también a Gaddum, Hoffman y Sokolowsky en "On the Solution of the Caterer Problem" del Naval Res, Logist. Quart., Vol. 1, N°3, september, 1954 y a William Prager en "On the Caterer Problem" del Management Sci., Vo...

  17. Paraplegia as initial presentation of follicular thyroid carcinoma.

    Science.gov (United States)

    Haghpanah, Vahid; Abbas, Syed Imran; Mahmoodzadeh, Hossein; Shojaei, Abdolreza; Soleimani, Ali; Larijani, Bagher; Tavangar, Seyed Mohammad

    2006-03-01

    Follicular thyroid carcinoma with metastasis rarely presents with clinical picture of spinal cord compression. This report describes a 53 years old patient with follicular thyroid carcinoma who presented with paraplegia and urinary incontinence. Magnetic resonance imaging (MRI) of neck revealed a mass with destruction of C5 and extension to C6. Histopathology study demonstrated metastatic carcinoma of thyroid.

  18. Second laparoscopic resection for recurrent hepatocellular carcinoma after initial laparoscopic

    Institute of Scientific and Technical Information of China (English)

    LIANG Xiao; CAI Xiu-jun; YU Hong; WANG Yi-fan; LIANG Yue-long

    2009-01-01

    @@ With the development of laparoscopic techniques,laparoscopic hepatectomy is feasible for hepatocellular carcinoma as reported in recent years.Although several reports have been published on laparoscopic surgery for metastatic liver cancer,1,2 few of them deals with second laparoscopic resection of recurrent hepatocellular carcinoma. We report a case of second laparoscopic resection for recurrent hepatocellular carcinoma after initial laparoscopic hepatectomy.

  19. Oral Verrucous Carcinoma Mimicking a Chronic Candidiasis: A Case Report

    OpenAIRE

    Natália Galvão Garcia; Denise Tostes Oliveira; João Adolfo Costa Hanemann; Alessandro Antônio Costa Pereira

    2012-01-01

    Verrucous carcinoma has a special propensity to mimic benign lesions of the oral cavity. A case of the oral verrucous carcinoma in maxillary alveolar ridge, extending to buccal vestibule, cheek, and labial mucosa, which was diagnosed and initially treated as chronic candidiasis, is presented. Clinical, histopathological, and therapeutic considerations related to diagnosis of the verrucous carcinoma in the oral cavity are discussed.

  20. Cutaneous metastasis from a myoepithelial carcinoma of submandibular salivary gland.

    Science.gov (United States)

    Chougule, Abhijit; Barwad, Adarsh; Bal, Amanjit; Dey, Pranab

    2015-01-01

    Myoepithelial carcinoma is a rare malignant tumor of salivary gland with locally aggressive nature and potential for distant metastasis. It is composed of tumor cells with myoepithelial differentiation showing varied cytomorphology. Lungs and kidneys are the commonest sites for distant metastasis. Cutaneous metastasis of myoepithelial carcinoma is very rare. In this report, we described cutaneous metastasis of myoepithelial carcinoma arising from submandibular gland.