Choledochal cyst presenting as pancreatitis.

A patient with choledochal cyst presenting with recurrent pancreatitis is described. The cyst was suspected on endoscopic retrograde cholangiography (ERCP), then was diagnosed by intravenous cholangiography and abdominal angiography. It was confirmed at surgery. The clinical, radiological and surgical features of this disorder are described and the importance of this entity as a possible correctable cause of pancreatitis is stressed.