Primary appendiceal adenocarcinoma

Adenocarcinoma of the appendix is rarely encountered and is usually discove red at the pathology examination of the surgical specimen. Adenocarcinoma o f the vermiform appendix is a rare neoplasm and constitutes <0.5% of all ga strointestinal neoplasms. There is no symptom of appendiceal cancer, and it is very difficult to diagnose preoperatively. Most female patients are dia gnosed as having a gynecologic disease. Second primary synchronous and meta chronous neoplasms, especially in the gastrointestinal tract, are found in up to 35% of patients with appendix adenocarcinoma. We report a case of ade nocarcinoma in a 56-year-old woman misdiagnosed as having right ovarian car cinoma, and we review the literature.