Case Report
Copyright ©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Jun 7, 2015; 21(21): 6754-6758
Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6754
True left-sided gallbladder with variations of bile duct and cholecystic vein
Hiromichi Ishii, Akinori Noguchi, Mie Onishi, Koji Takao, Takahiro Maruyama, Hiroaki Taiyoh, Yasunobu Araki, Takeshi Shimizu, Hiroyuki Izumi, Naoki Tani, Masahide Yamaguchi, Tetsuro Yamane
Hiromichi Ishii, Akinori Noguchi, Mie Onishi, Koji Takao, Takahiro Maruyama, Hiroaki Taiyoh, Yasunobu Araki, Takeshi Shimizu, Hiroyuki Izumi, Naoki Tani, Masahide Yamaguchi, Tetsuro Yamane, Department of Surgery, Matsushita Memorial Hospital, Osaka 570-8540, Japan
Author contributions: All authors contributed equally to this work; Ishii H wrote the paper; Ishii H, Taiyoh H and Araki Y performed the operation.
Informed consent: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest: The authors declare that there is no conflict of interest associated with this manuscript.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Hiromichi Ishii, MD, Department of Surgery, Matsushita Memorial Hospital, 5-55 Sotojima-cho, Moriguchi City, Osaka 570-8540, Japan. ishii.hiromichi@jp.panasonic.com
Telephone: +81-6-69921231 Fax: +81-6-69924845
Received: November 14, 2014
Peer-review started: November 17, 2014
First decision: December 26, 2014
Revised: January 6, 2014
Accepted: February 12, 2015
Article in press: February 13, 2015
Published online: June 7, 2015
Abstract

A left-sided gallbladder without a right-sided round ligament, which is called a true left-sided gallbladder, is extremely rare. A 71-year-old woman was referred to our hospital due to a gallbladder polyp. Computed tomography (CT) revealed not only a gallbladder polyp but also the gallbladder located to the left of the round ligament connected to the left umbilical portion. CT portography revealed that the main portal vein diverged into the right posterior portal vein and the common trunk of the left portal vein and right anterior portal vein. CT cholangiography revealed that the infraportal bile duct of segment 2 joined the common bile duct. Laparoscopic cholecystectomy was performed for a gallbladder polyp, and the intraoperative finding showed that the cholecystic veins joined the round ligament. A true left-sided gallbladder is closely associated with several anomalies; therefore, surgeons encountering a true left-sided gallbladder should be aware of the potential for these anomalies.

Keywords: True left-sided gallbladder, Infraportal bile duct of segment 2, Anomaly of the cholecystic vein, Anomaly of the portal vein, Laparoscopic cholecystectomy

Core tip: A left-sided gallbladder without a right-sided round ligament, which is called a true left-sided gallbladder, is extremely rare. We performed laparoscopic cholecystectomy on a patient with a true left-sided gallbladder which coexisted with an infraportal bile duct of segment 2 and cholecystic venous anomaly. Surgeons encountering a true left-sided gallbladder should be aware of the potential for these anomalies.