Biliary cystadenocarcinoma: sonographic and cytologic findings

Abstract

Biliary cystadenocarcinoma is a rare hepatic cystic tumor. We report sonographic, CT, and MRI findings in an unusual case in an 87-year-old man. The diagnosis was aided by sonographically guided needle aspiration of the lesion, which revealed elevated levels of carcinoembryonic antigen and CA 19-9 in the cystic fluid. © 1999 John Wiley & Sons, Inc. J Clin Ultrasound 27:210–212, 1999.