Pancreatic divisum with choledochal cyst and calculus: MR appearance.

Pancreatic divisum is the most common congenital anomaly of the pancreas but its association with choledochal cyst is extremely rare. We describe here a case of pancreatic divisum with choledochal cyst with a stone which was successfully treated at surgery. The common congenital pancreaticobiliary abnormalities are briefly discussed.

Massive dilatation of the common bile duct resembling a choledochal cyst.

We present an unusual case in which an impacted calculus at the lower end of the common bile duct produced massive dilatation. This resulted in a confusing picture of choledochal cyst on abdominal ultrasound and endoscopic retrograde pancreatography. The common bile duct returned to normal size after removal of the stone.