[Idiopathic segmental infarct of the epiploon. Apropos a new case and a review of the literature]. / Infarto segmentario idiopático de epiplón. A propósito de un nuevo caso y revisión de la literatura.

A case of epiploic segmental infarction is presented. The presenting symptoms were compatible with acute appendicitis, which was excluded by the pathological examination.

[Synchronous or metachronous extragastric neoplasms associated with gastric neoplasia. Common pathogenesis of gastric intestinal and colonic carcinoma?]. / Neoplasias extragástricas síncronas o metacronas asociadas a neoplasia gástrica. Patogénesis común del carcinoma gástrico intestinal y cólico?

Coexistence of syncronous or metacronous extragastric carcinomas, particularly of the colon and small bowel may favour the hypothesis of a common origin with gastric carcinoma. Three cases of colonic carcinoma coexisting with early gastric cancer, are presented. The etiopathogenesis of intestinal-type gastric cancer and colonic cancer are discussed in the light of a possible common mechanism.

[Adenocarcinoma at the site of colostomy. Is it local recurrence or subsequent cancer?]. / Adenocarcinoma de colostomía. Recidiva local o cáncer metacrónico?

This paper presents on case of adenocarcinoma at the site of colostomy in a patient treated by abdominoperineal amputation five years earlier due to rectal cancer. The case raised the doubt as to whether the carcinoma represented a late, local recurrence or a second metachronic neoplasia. The most frequent location and pathogenesis of each were analyzed. The role of follow-up of these patients in detecting cases such as the one presented here are discussed.

[Significance of peroperative cholangiography in elective geriatric surgery of the bile ducts]. / Valor de la colangiografía peroperatoria en cirugía biliar geriátrica electiva.

We present a retrospective study on the value of peroperative cholangiography (POC) in geriatric patients submitted to elective surgery of the biliary tract. We analyze the results of the present series and compare them with a previous study of 200 cases of cholelithiasis in the general population. Our conclusion is that in geriatric patients, POC should be a routine practice in order to avoid an unnecessary choledochotomy and/or residual lithiasis post-cholecystectomy.

[Immune thrombocytopenia and HIV-1 infection. Response to splenectomy]. / Trombocitopenia inmune e infección por HIV 1. Respuesta a esplenectomía.

We present a case of thrombocytopenic purpura associated to acquired immunodeficiency; this disease is very infrequently associated to AIDS; the clinical characteristics are similar to the classical Idiopathic Thrombocytopenic Purpura, including the response to splenectomy. We discuss the therapeutic approach of this condition and review the literature, adding this new case of a patient with AIDS, Walter and Reed's stage II, who responded to splenectomy.

[Gastric leiomyosarcoma]. / Leiomiosarcoma gástrico.

We present a case of gastric leiomyosarcoma of special characteristics, given its clinical and pathologic divergence the existence of antecedents of sarcomatous neoplasm previously excised in the same patient. We emphasize the association of these tumors with the appearance of malignant neoplasms in other sites previously, synchronically or metachronically, and the necessary preoperative staging, based fundamentally on CAT and endoscopy, to establish the therapeutic approach according to the predicted behavior of these tumors.