2006 Volume 54 Issue 5 Pages 269-273
We reported a case of a mucinous cystadenoma of the appendix. A 74-year-old man was admitted to our hospital because a mass approximately 5cm in diameter was detected in the right lower quadrant of the abdomen. In the blood chemistry, the serum level of carcinoembryonic antigen (CEA) was slightly elevated (4.0ng/ml). Barium enema study revealed a tumor in the cecum, 40mm in diameter with a smooth surface. Colonoscopy revealed it as a submucosal tumor. Abdominal computed tomography revealed the cystic mass, 40×40×100mm in diameter, localized on the dorsal side of the cecum, which might be identified as the appendix. From these findings a mucinous cyst of the appendix was suspected, and an ileo-cecectomy with regional node dissection was performed. In the histopathological study, the tumor was diagnosed as mucinous cystadenoma of the appendix. No malignant findings were revealed, but the CEA and CA19-9 levels of the mucilaginous solution in the cystadenoma were remarkably elevated : CEA 8125ng/ml, CA19-9 4315U/ml. The postoperative course was uneventful.
