Extraovarian primary peritoneal carcinoma.

Extraovarian primary peritoneal carcinoma (EOPPC), a relatively newly defined disease that develops only in women, accounts for approximately 10% of cases with a presumed diagnosis of ovarian cancer. Characterized by abdominal carcinomatosis, uninvolved or minimally involved ovaries, and no identifiable primary, EOPPC has been reported following bilateral oophorectomy performed for benign disease or prophylaxis. Most cases are of serous histology; however, nonserous tumors have been observed. Although EOPPC is similar to serous ovarian carcinoma with respect to clinical presentation, histologic appearance, and response to chemotherapy, molecular and epidemiologic studies have indicated that it may be a separate entity. This review explores the clinical presentation, management, prognosis, and survival of EOPPC.