LEIOMIOMA GASTRICO PDF

Pвncreas heterotуpico Neoplбsicos. Adenomas tubulo-vilosos. Adenomas sгo neoplasias benignas, constituнdas por cйlulas epiteliais que se dispхem formando glвndulas. Quando o adenoma й classificado de tubular й porque as cйlulas epiteliais formam glвndulas tubulares. Nos adenomas vilosos as cйlulas epiteliais formam projeзхes digitiformes, chamadas vilosidades, na superfнcie do pуlipo.

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A celularidade era leve em cinco casos e moderada em um. They arise in the muscle coats of the bowel as leiomyomas or leiomyosarcomas. Histologically the differentiation between benign and malignant may be difficult and causes problem to choose the best treatment. Recently, immunohistochemical techniques showed that many of these tumours had no smooth muscle differentiation and are actually GISTs. Gastrointestinal Stromal Tumours, GISTs, are histologically, immunohistochemically and genetically different from leiomyomas and leiomyosarcomas.

Five leiomyomas were in the muscularis mucosae. By the application of the immunohistochemical technique in tumours of the circular and longitudinal layers with the markers CD, CD34, PTN S- , smooth muscle actine and desmin, only one leiomyoma from the mural layer was confirmed and other five lesions were proved to be GISTs.

Surgery is the best treatment because radiotherapy or chemotherapy are not effective. The Imatinibe mesylate, selective inhibitor of the tirosina kinase expressed in GISTs, can be the therapeutic option for metastatic GISTs or for those impossible to resect.

The diagnosis and differentiation between leiomyomas, leiomyosarcomas and GISTs can only be made with the use of immunohistochemical thecnique, and a larger number of patients is necessary to define the best surgical treatment and the prognosis of these lesions. AkwarI, O. Leiomyosarcoma of the small and large bowel. Cancer, v. Appelman, H. Mesenchymal tumors of the gut: histological perspectives, new approaches, new results, and does it make any difference?

Monogr Pathol, v. Bauer, S. Response to imatinib masylate of a gastrointestinal stromal tumor with very low expression of KIT. Cancer Chemother Pharmacol, v. Berman, J. Gastrointestinal stromal tumor workshop. Hum Pathol, v. Corporale, A. Leiomyosarcoma of the rectum after pelvic radiation therapy for endometrial carcinoma. AJG, v. Croom, K. Imatinib mesylate: in the treatment of gastrointestinal stromal tumors. Drugs, v.

Cummings, S. Dis Colon Rectum, v. Dei Tos A. The reappraisal of gastrointestinal stromal tumors: from Stout to the KIT revolution. Virchows Arch, v. Eisen, G. Role of endoscopic ultrasonography. Gastrointestinal Endoscopy , v. Evans, H. Smooth muscle tumors of tha gastrointestinal tract. A study of 56 cases followed for a minimum of 10 years. Exner, A. Ueber nichtmelanotische sarkome des mastdarmes. Med Klin Berlin, v. Golden, T. Smooth muscle tumors of the gastointestinal tract and retroperitoneal tissues.

Surg Gynecol Obstet, v. Grann, A. Sphincter preservation of leiomyosarcoma of the rectum and anus with local excision and brachytherapy. Haque, S. Stromal neoplasms of the rectum and canal anal. Hatch, K. Tumors of the rectum and anal canal. World J Surg, v. Hishida, Y. Smooth-muscle tumors of the rectum in Japanese. Horowitz, J. An institutional review of sarcomas of the large and small intestine. J Am Coll Surg, v. Hsieh, J. Benefits of endorectal ultrasound for management of smooth muscle tumor of the rectum: Report fo three cases.

Ishiguro, A. Endoscopic removal of rectal leiomyosarcoma: case report. Gastrointestinal Endoscopy, v. Kajeiyama, T. Endoscopic resection of gastointestinal submucosal lesions: a comparison between strip biopsy and aspiration lumpectomy.

Kameyama, H. Endoscopic ultrasonography in the diagnosis of submucosal lesions of the large intestine. Kawamoto, K. Colonic submucosal tumors: a new classification based on radiologic characteristics. AJR, v. Khalifa, A. Leiomyosarcoma of the rectum: Report of a case and review of the literature. Kiffer, J. Leiomyosarcoma of the rectum: what role does adjuvant therapy play? Australas Radiol, v. Kitamura, Y. Molecular pathology of c-kit proto-oncogene and development of gastrointestinal stromal tumors.

Ann Chir Gynaecol, v. Kusminsky, R. Leiomyomas of the rectum and anal canal: Report of six cases and review of the literature. Labow, S. Leiomyosarcoma of the rectum: Radical vs. Conservative therapy and report of three cases. Lasota, J.

Mutations in exon 11 of c-Kit occur preferentially in malignant versus benign gastrointestinal stromal tumors and do not occur in leiomyomas or leiomyosarcomas. Am J Pathol, v. Lee, S. Radiological Features of Leiomyomatous tumors of the colon and rectum.

J Comput Assist Tomogr, v. Mantoudis, S. Leiomyosarcoma of the rectum: Report of a case. Mcgrath, P. Gastrointestinal sarcomas. Analysis of prognostic factors. Ann Surg, v. Megibow, A. CT Evaluation of gastrointestinal leiomyomas and leiomyosarcomas.

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MECANICA DE FLUIDOS CENGEL CIMBALA PDF

Resección transgástrica laparoscópica de leiomioma localizado en unión esofagogástrica

Glaz and Grunebaum 6 recommended that asymptomatic and mildly symptomatic patients should not undergo leiomiomaa but be regularly monitored using radiography and endoscopy every years instead. We used vicryl or ethibond to suture myotomy. The advent of minimally invasive techniques has produced an increase in endoscopic approaches to the detriment of open surgery. Consensus meeting for the management of gastrointestinal stromal tumors. Thoracoscopic resection of benign tumours of the esophagus. Thoracoscopic enucleation of liomioma tumors of the esophagus under simultaneous flexible esophagoscopy.

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