1996 Volume 57 Issue 11 Pages 2755-2760
Biliary cystadenocarcinoma is a relatively rare disease, and only 90 cases have been reported in Japan. We report a case of biliary cystadenocarcinoma with a review of the literature. A 52-year-old female was admitted to the hospital because of general fatigue. Abdominal ultrasonography, CT, MRI, arteriography revealed a cystic tumor in the right hepatic lobe suspicious of intrahepatic cholangiocarcinoma, and an extended right hepatic resection (right trisegmentectomy) was performed. Intraoperative ultrasonography was very useful to decide the resection line. The cystic tumor (5×7×8cm) consisted of mucinous substance and papillary tumor arising from the cystic wall. Histologically the tumor was diagnosed as biliary cystadenocarcinoma. It is speculated that the tumor might come from malignant change of cystadenoma because of the coexistence of benign cells, strongly atypical cells and the transitional zone of those inthe cystic wall. The patient is doing well and there has been no sign of recurrence as of 4 yers after the surgery.
