Long-term results after cholecystectomy alone for patients with pancreaticobiliary maljunction without bile duct dilatation.

A pancreaticobiliary maljunction (PB-MJ) without bile duct dilatation is relatively rare. The standard treatment for these patients remains controversial. In this study, we followed up the patients with PB-MJ without bile duct dilatation who mainly underwent a cholecystectomy alone.