抄録
A 75-year-old male patient, who presented with umbilica pain, was diagnosed with acute pancreatitis. Magnetic resonance cholangiopancreatography findings indicated saccular dilatation of the lower bile duct. After the pancreatitis improved, endoscopic retrograde cholangiopancreatography (ERCP) was performed. ERCP showed that the bile duct and pancreatic duct were separately contrasted, and saccular dilatation of the lower bile duct was noted. The patient was diagnosed with choledochocele with no formation of a common duct. Considering that the pancreatitis may have been caused by physical exclusion of the pancreatic duct by the choledochocele, endoscopic sphincterotomy was performed. No pancreatitis recurrence has occurred over the 9 months following treatment. Our findings suggest that choledochocele should be considered when conducting differential diagnosis for cases of pancreatitis of unknown cause.
