Carcinoma papilar seroso primario del peritoneo: reporte de un caso / Peritoneum primary papillary serous carcinoma: case report

Primary serous papillary carcinoma of the peritoneum is a rare neoplasm. It is characterized by peritoneal carcinomatosis, asertes and identical histology to ovarian serous papillary carcinoma, but wrth unaffected or only superficially affected ovaries. The main differential diagnoses are secondary peritoneal carcinomatosis, peritoneal tuberculosis, malignant peritoneal mesothelioma and peritoneal lymphomatosis. The computer tomography and CA 125 are the main diagnostic tools, but the histology is essential. In this report, we present a case of a 57 years old woman with this neoplasm, metastazised to colon, uterus and ovaries. She was treated with optimal cytoreduction and chemotherapy.

El carcinoma papilar seroso primario del peritoneo es una neoplasia rara. Se caracteriza por carcinomatosis peritoneal, ascitis y una histología idéntica al carcinoma seroso papilar de ovario, pero sin comprometerlo o afectándolo sólo superficialmente. Se debe plantear como principales diagnósticos diferenciales la carcinomatosis peritoneal secundaria, la tuberculosis peritoneal, el mesotelioma peritoneal maligno y la linfomatosis peritoneal. La tomografía computada y el CA 125 representan las principales herramientas diagnósticas, sin embargo, la histología resulta imprescindible. En el presente artículo, presentamos un caso de una mujer de 57 años con esta neoplasia en que se demostró además compromiso de colon, útero y anexos. Se manejó con citoreducción óptima y quimioterapia posterior.

CT Features of Peritoneal Metastasis / 中国普外基础与临床杂志

Objective To study the CT features of peritoneal Metastasis in post-operative patients of ovarian carcinomas.Methods CT appearance of peritoneal metastasis of ovarian carcinomas proved by surgery and pathology in 33 post-operative patients were reviewed.The CT features of the foci were recorded and analyzed,especially on the location,quantity,density and size.Results In the peritoneal cavity,186 implant foci and 10 recurrent foci were found.metastasis often occurred in the right upper abdomen,especially the right subphrenic spaces.The most frequent locations were the right suprahepatic and subhepatic spaces,the small bowel mesentery,the gastrocolic ligament and the omentum.The density of the foci was most of solid.The size was ranged from 0.5~13 cm.Conclusion Peritoneal metastasis is the most frequent route of metastases for ovarian carcinomas.It is frequently found in upper abdomen,especially in the subphrenic spaces.Localized ascites in the peritoneal cavity is another important sign suggesting peritoneal implants.CT scan from the diaphragm to the pelvic floor will be helpful to diagnose peritoneal implants in cases of post-operative ovarian carcinomas.

Primary Papillary Serous Carcinoma of the Peritoneum: A Case Report

Primary papillary serous carcinoma of the peritoneum is a rare primary tumor involving the peritoneum. Histologically, it is indistinguishable from serous ovarian papillary carcinoma, although it either spares the o-varies or only microscopically involves their surface. The characteristic features of this tumor are extensive peritoneal and omental masses or implants with psammomatous calcification, and ascites. In addition, it can occur focally in the pelvic peritoneum. We report the CT findings, with histopathologic correlation of primary papillary serous carcinoma of the peritoneum occurring in the upper mesorectum.