Multiseptate gallbladder with anomalous pancreaticobiliary ductal union: a case report

Abstract

Multiseptate gallbladder, characterized by the presence of multiple septa dividing the gallbladder lumen, is a very extremely rare congenital anomaly of the gallbladder. On the other hand, anomalous pancreaticobiliary ductal union is also one of the congenital anomalous biliary diseases and thought to be related with choledochal cyst or biliary tract malignancies. In this paper, we describe a unique and first patient of multiseptate gallbladder with anomalous pancreaticobiliary ductal union and a review of the literature. To clarify more characters of the multiseptate gallbladder, examination of a larger patient population will be needed and further studies will be required.

Figure 1

A: Endoscopic ultrasonography of the gallbladder showing multiple thin septa in the neck portion. B: Endoscopic retrograde cholangiopancreatography showing anomalous pancreaticobiliary ductal union. The common bile duct was not dilated. C: Endoscopic retrograde cholangiopancreatography showing multiple faint septation in the neck of the gallbladder. D:Longitudinal resected gallbladder shows multiple thin septa appearance at the neck portion. E: Microscopic findings of the resected gallbladder demonstrate the septa lined by normal typical columnar epithelium containing normal muscular layer (H&E stain, original magnification ×40).