Biliary cystadenoma is a rare cystic neoplasm and constitutes only 5% of al
l intrahepatic cysts of biliary origin. We report a case of a 44-year-old w
oman with huge biliary cystadenoma in the subhepatic space, mimicking a cho
lecystic lymphangioma. Findings of various imaging modalities including rec
onstructed CT image are presented and correlated with surgical and patholog
ic findings.