Case Report
Copyright ©2012 Baishideng Publishing Group Co., Limited. All rights reserved.
World J Clin Oncol. Apr 12, 2012; 3(4): 63-66
Published online Apr 12, 2012. doi: 10.5306/wjco.v3.i4.63
A case of very large intrahepatic bile duct adenoma followed for 7 years
Futa Koga, Hiroto Tanaka, Seigo Takamatsu, Shinnichi Baba, Hiroshi Takihara, Akioko Hasegawa, Eri Yanagihara, Taro Inoue, Toshihiro Nakano, Chie Ueda, Wataru Ono
Futa Koga, Hiroto Tanaka, Seigo Takamatsu, Shinnichi Baba, Hiroshi Takihara, Akioko Hasegawa, Eri Yanagihara, Taro Inoue, Toshihiro Nakano, Chie Ueda, Wataru Ono, The Department of Gastroenterology, Kishiwada Tokushukai Hospital, Kishiwada City 596-8522, Japan
Author contributions: Main clinical care was done by Koga F and Ono W and other authors assisted them; Koga F and Tanaka H wrote this manuscript.
Correspondence to: Hiroto Tanaka, MD, PhD, The Department of Gastroenterology, Kishiwada Tokushukai Hospital, 4-27-1 Kamoricho, Kishiwada City 596-8522, Japan. h-tana@yf6.so-net.ne.jp
Telephone: +81-724459915 Fax: +81-724459791
Received: September 13, 2011
Revised: February 2, 2012
Accepted: March 12, 2012
Published online: April 12, 2012
Abstract

A 70-year-old man was referred to our hospital due to abnormal liver function. A tumor of 92 mm × 61 mm was detected on ultrasound screening of the left liver lobe. Although the tumor was suspected to be intrahepatic bile duct carcinoma, he had chronic heart disease and was unable to undergo surgery. Therefore, he was followed without further testing. No increase in tumor serum markers or tumor size was observed for the subsequent 7 years. We continued to suspect intrahepatic bile duct carcinoma, and we decided to perform a tumor biopsy. Tumor biopsy findings indicated intrahepatic bile duct adenoma (BDA), which is a rare benign epithelial liver tumor typically ranging from 1 mm to 20 mm. We herein report a case of very large BDA followed for 7 years.

Keywords: Intrahepatic bile duct adenoma; Large tumor; Differential diagnosis; Benign liver tumor