Primary malignant tumors of appendixBackground: Primary malignant tumors of appendix are uncommon and usually found during the pathological examination of surgical pieces of appendectomies. aim: To report the clinical and pathological features of appendiceal malignant tumors. material and methods: Review of medical and pathological reports of patients subjected to an appendectomy between 1998 and 2006 in two regional hospitals. results: Fifteen appendiceal malignant tumors in 2,687 pathological studies were detected (0.55% of all studies) in one hospital. In the other 10 tumors were detected in 4,939 studies (0.2%). nine bearers of tumors were male. In each hospital 93 and 80% of patients had an acute appendicitis, respectively. The pathology report informed a neuroendocrine tumor in 87 and 70% of patients of each hospital, respectively, followed by non-Hodgkin lymphoma and adenocarcinoma. In nine patients a staging study was performed. Four patients died during follow up, one of them due to tumor disseminations. conclusions: Although appendiceal tumors appear in only 0.3% of all appendectomies, the pathological study of the excised appendix is fundamental for the diagnosis.
comparison of open and laparoscopic surgery in obese patients background: Laparoscopic appendectomy may have advantages over the open surgical technique in obese patients. aim: To compare the results and complications of open and laparoscopic appendectomy in obese patients. material and methods: Patients consulting for acute appendicitis with a body mass index of 30 kg/m 2 or more were randomly assigned to be treated by open of laparoscopic appendectomy. Both surgical techniques were standardized. results: Seventy patients were studied. Half were treated with laparoscopic and half with open surgery. Demographic variables were comparable in both groups. Surgical times for open and laparoscopic appendectomies were 35 and 42 min respectively. The figures for hospital stay were 2.5 and 2.1 days respectively. Surgical wound problems more common in open surgery. Conversion to open surgery occurred in 3% of patients. conclusions: In this group of obese patients, laparoscopic appendectomy had a low rate of conversion and lesser wound complications
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