ANATOMIA ULTRAESTRUCTURAL DEL INTESTINO GRUESO PDF

Histological and histochemical studies on the esophagus, stomach and small intestine of Varanus niloticus. Journal of Veterinary Anatomy. Histochemical comparison of vertebrate mast cells. Histochemical Journal. Acidomucin goblet cell expansion induced by parenteral nutrition in the small intestine of piglets.

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Carcinomas neuroendocrinos de colon y recto. Neuroendocrine carcinomas of the colon and rectum. A unit's experience over six years. Vilallonga, E. Landolfi 1 y M. Armengol Carrasco. Hospital Universitario Vall d'Hebron. Se han revisado de manera retrospectiva los pacientes con un tumor de estirpe neuroendocrina. Se han excluido los tumores carcinoides. Resultados: durante este periodo, se han intervenido 2.

Se localizaron uno en ciego, dos en recto y dos en sigma. Dos pacientes siguen vivos con un seguimiento medio de ocho meses. Palabras clave: Tumor. Carcinoma indiferenciado. Key words: Tumour. Undifferentiated carcinoma. Sin embargo, los tumores colorrectales neuroendocrinos se dividen en los de bajo grado o carcinoides y los tumores neuroendocrinos de alto grado.

CEA y CA El curso postoperatorio fue favorable. El tumor presentaba positividad para las queratinas y cromogranina. El paciente tuvo un postoperatorio correcto. Se intervino hallando una neoplasia de ciego exteriorizada, con carcinomatosis peritoneal y abundante ascitis.

El paciente no presenta a los diez meses ninguna recidiva local ni a distancia, y sigue tratamiento con 5-fluorouracilo y estreptomicina. El postoperatorio fue sin incidencias. El seguimiento no ha mostrado recidiva locorregional a los 10 meses de seguimiento. Sin embargo, estas localizaciones menos frecuentes han sido las halladas en nuestros pacientes. El origen y desarrollo de los tumores neuroendocrinos sigue siendo tema de controversia 5,10, A 5-decade analysis of 13, carcinoid tumors.

Cancer ; The prevalence and prognostic significance of argyrophil cells in colorectal carcinomas. Am J Surg Pathol ; 8: Neuroendocrine carcinomas of the colon and rectum: A clinicopathologic evaluation. Surg ; Neuroendocrine cancers of the colon and rectum. Results of a ten-year experience. Dis Colon Rectum ; Neuroendocrine carcinoma of the colon and rectum.

A clinicopathologic, ultraestructural and immunohistochemical study of 24 cases. Am J Surg Pathol ; Pathology of smallcell lung cancer. J Cancer Res Clin Oncol ; Simon SR, Fox K. Neuroendocrine carcinoma of the colon. Correct diagnosis is important. J Clin Gastroenterol ; Gastrointestinal cancer.

Sarsfield P, Anthony PP. Histopathology ; Malignant tumors of the anal canal. The spectrum of disease, treatment and outcomes. Bosman FT. Neuroendocrine cells in non-endocrine tumors: What does it mean? Verh Dtsch Ges Pathol ; Small-cell undifferentiated carcinoma of the colon. A clinicopathological study of five cases and their association with colonic adenomas. Am J Surg Pathol ; 7: Helpap B, Kollermann J.

Immunohistochemical analysis of the proliferative activity of neuroendocrine tumors from various organs. Are there indications for a neuroendocrine tumor-carcinoma sequence? Virchows Arch ; Johnson LR. Regulation of gastrointestinal mucosal growth. Physiol Rev ; Oberg K. Carcinoid tumors: Molecular genetics, tumor biology, and update of diagnosis and treatment.

Curr Opin Oncol ; Revised classification of neuroendocrine tumours of the lung, pancreas and gut. TNM staging of foregut neuro endocrine tumors: A consensus proposal including a grading system. Carcinomas of the colon with multidirectional differentiation.

Report of two cases and review of the literature. Dig Dis Sci ; Small cell neuroendocrine carcinoma of the rectum. Pathol Int ; Eur J Gastroenterol Hepatol ; Treatment of neuroendocrine carcinomas with combined etoposide and cisplatin. Evidence of major therapeutic activity in the anaplastic variants of these neoplasms. J Clin Oncol ; Clinicopathologic characteristics of colorectal neuroendocrine tumor.

Korean J Gastroenterol ; Carcinoma neuroendocrino de colon y recto. Cir Esp ; Hung SS. Small cell carcinoma of the colon. A case reportand literature review. Clin Gastroenterol ; Undifferentiated small cell carcinoma oat-cell type of the colon. Prognostic and therapeutic implications. Rev Esp Enferm Dig ; Rare tumors of the colon and rectum: A national review. Int J Colorectal Dis ; Hospital Vall d'Hebron. Passeig de la Vall d'Hebron, Servicios Personalizados Revista. They are usually undifferentiated, easy to diagnose for the pathologist and are especially aggressive in their clinical behaviour.

Prognosis is usually poor and they have a high tendency to metastase early. Material and methods: we have reviewed our experience in a Colorectal Unit during a period of six years.

Patients with neuroendocrine tumours have been reviewed retrospectively. Carcinoid tumours have not been included in this study. Results: during this period, 2, patients have been operated for colorectal cancer and in five patients a neuroendocrine tumour has been found in the specimen.

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2014, Número 1

Seven exemplars of piracanjuba, with average weight and standard length of The presence of endocrine cellules like "open" was verified on the segments related to the medium and posterior intestines omnivores species and like "closed" in the medium intestine and in the rectum of the carnivore specie. The argirofiles cellules were observed among the as absortive cellules of intestinal epithelium. The results showed that the presence of endocrine cellules can indicate that the studied species act in the absorption control mechanism of food nutrients. However, due to the obtained amounts, more studies are necessary to elucidate this control. Polak et al. Larsson , Lehy e Cristina e Tagliafierro et al.

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