Abstract

The bile duct cystadenoma is a very rare, premalignant cystic lesion that only about less than l00 cases were reported in the literatures. The lesions occur most often in middle-aged woman characterized by epigastric discomfort, right upper quadrant pain and palpable mass. The etiology of the cyatadenoma is still unknown. It is believed that cystadenocarcinomas are derived from benign cystadenomas, because most of the malignant tumors contain a considerable amount of benign epithelium. And complete excision is the ideal treatment for bile duct cystadenoma because it is a true neoplasm. A 64 years old female patient was admitted to this hoepital with the complaints of intermit- tent right upper quadrant pain and lower abdominal pain with palpable mass. Exploratory laparotomy wes performed which disclosed a hard, smooth and round cyst mass, about 7cm in diameter in the left hepatic lobe. The cut surface of the tumor showed multiloculated appearance. The cyst was seperated with a septum, and had well developed wall, containing serosanguineous fluid and multiple pigment stones. Histopathological examination canfirmed the cystadenoma of the bile ducts.

• Keywords: Bile duct cystadenoma, Complete excision