Intrahepatic Billary Cystadenoma Mistken for Peritoneal Cystic Lymphangioma

Park, Sang Heum; Kim, Sun Joo; Lee, Moon Ho; Kim, Chang Jin; Kim, Hong Soo; Le, Moon Soo; Chung, Il Kwun; Yoon, Young Keun; Kim, Sang Gyune

Abstract

Biliary cystadenoma is a rare epithelial neoplasm. The clinical features and optimal surgical management for these lesions have not been defined clearly. It occurs predominantly in female. Abdominal fullness or an abdominal mass was the most common symptom. The site where the tumor occurs most commonly is the right hepatic lobe. It is rare to diagnose the biliary cystadenoma preoperatively, so these tumors are usually found accidentally. The valuable diagnostic methods are ultrasonogram, abdominal CT scan, angiography, endoscopic retrograde cholangiography, percutaneous transhepatic cholangiography. These benign tumors are at the risk of malignant transformation and thus, should be considered to be premalignant. Local surgical excision from the wall of the bile duct is associated with high reccurence. Therefore, complete resection with negative histologic margins followed by bilioenteric reconstruction is recommended. We report a case of biliary cystadenoma which was mistaken for peritoneal cystic lymphangioma with a review of literatures.