Appendiceal schistosomiasis complicated by low - grade appendiceal mucinous neoplasm: a report of two cases / 中国血吸虫病防治杂志

This report presents two cases with appendiceal schistosomiasis complicated by low-grade appendiceal mucinous neoplasm.

Tumores apendiculares en 6.093 apendicectomías de urgencias: sobrevida a 5 años / Appendiceal malignant tumors among patients with acute appendicitis

Background: Acute appendicitis can be the first manifestation of an appendiceal tumor. Aim: To evaluate the incidence of appendiceal tumors among patients operated for acute appendicitis. Material and Methods: All patients operated for acute appendicitis between 1998 and 2008 and whose appendix had a pathological study were included. Survival was calculated using national death register databases. Results: Data from 6.093 patients was analyzed. A malignant tumor was found in 17 patients (0.3 percent). Eleven patients aged 23 +/- 14 years had a carcinoid tumor, that was more commonly located distally, five patients aged 66 +/-18 years had an adenocarcinoma, that was more commonly located proximally, and one patient had a non Hodgkin lymphoma. Curative surgery was carried out in all carcinoid tumors and 40 percent of adenocarcinomas. No patient had regional lymph node involvement. Five years survival of patients with carcinoid tumors was 100 percent. Conclusions: The finding of malignant tumor among patients with acute appendicitis is uncommon.

Introducción: Al enfrentarnos a un paciente con apendicitis aguda, pocas veces pensamos que puede ser la primera manifestación de un cáncer apendicular. Objetivo: Describir el número de casos nuevos de cáncer apendicular en las apendicectomías de urgencia en el Hospital Base Osorno (HBO) durante los años 1998-2008. Material y Métodos: Serie de casos. Se incluyeron pacientes operados por abdomen agudo en el servicio de urgencia del HBO, que en cuyo informe anatomopatológico de la biopsia diferida se informara cáncer apendicular, entre los años 1998 y 2008. Se excluyeron pacientes en los que el apéndice estaba comprometido por contigüidad. Algunas variables incluidas: edad, sexo, diagnóstico preoperatorio, tipo de cirugía, resección completa tumoral, reintervención, características histoanatomopatológicas, terapia adyuvante. Descripción de variables en porcentajes, medias o medianas. Curvas de sobrevida: Kaplan Meier. Programa estadístico Stata 10.0. Resultados: Se analizaron 6.093 pacientes. Se encontró un cáncer en el 0,28 por ciento (17 pacientes) de los casos. 11 (64 por ciento) fueron carcinoides, 5 (29 por ciento) adenocarcinomas y 1 (6 por ciento) linfoma no Hodgkin. Edad promedio 23,45 (DS +/- 14,45) años en los carcinoidesy 65,75 (DS +/- 18,46) en los adenocarcmomas. En los carcinoides predominó el sexo femenino, contrario a lo sucedido en los adenocarcmomas. Se practicó cirugía curativa al 100 por ciento de los carcinoides y al 40 por ciento de los adenocarcinomas. Ubicación más frecuente: Carcinoides en tercio distal y adenocarcinoma en tercio proximal. Ningún tumor tuvo linfonodos comprometidos. 100 por ciento de sobrevida a 5 años en carcinoides. Conclusiones: El número de casos nuevos de cáncer en una apendicitis aguda es bajo. En los carcinoides, la sobrevida a 5 años es alta.

A Case of Krukenberg Tumor arising from Appendix / 대한산부인과학회잡지

Krukenberg tumor arising from an appendiceal neoplasm is rare. The 30 cases of appendiceal Krukenberg tumor have been reported since 1970 currently. The tumors can be easily overlooked because appendiceal tumors are rare and its size is very small so that they can be seen normally to the naked eye. The proper treatment of tumors which spreads from the appendix to the ovary does not exist as of yet, so the mean survival time is only 7-9 months and the prognosis is not good. Therefore, when the ovarian tumor that secrete the mucus substance is found and primary origin cannot be found, diagnostic appendectomy is recommended. Authors report a case of the 46-year-old woman who admitted with chief complaints of palpable abdominal mass which reveals Krukenberg tumor from appendix.

Diagnosis and Surgical Treatment of Primary Appendiceal Tumor: a Report of 13 Cases / 中国医师杂志

Objective To study the clinical characteristics and treatment of primary appendicular tumor. Methods The clinical data of 13 patients with primary appendicular tumor treated in our hospital from 1979 to 1999 were retrospectively analyzed. Results The primary appendicular tumors included 4 cases of mucinous tumor, 5 cases of carcinoid, 3 cases of adenocarcinoma and 1 case of leiomyosarcoma. None was diagnosed correctly before operation. All 13 cases were treated by operation. Right hemicolectomy was performed in carcinoid, diameter of which was longer than 1cm, right hemicolectomy and regional lymphadenectomy were performed in adenocarcinoma, and the other five cases were only received appendectomy. The patients were in good general condition after operation. Conclusions Primary appendicular tumor lacked particular symptoms, and the rate of misdiagnosis was extremely high. Barium radiography and ultrasonography were helpful for diagnosis. Intraoperative frozen section detection was very important for diagnosis. Operation is a principle therapy, and suitable operation plan may be key factor for improving the prognosis of the patients with appendicular tumor.