Gastric duplication cyst communicating with aberrant pancreatic duct: a rare cause of recurrent acute pancreatitis.

An 18-year-old patient who had recurrent attacks of acute pancreatitis was found on endoscopic retrograde cholangiopancreatography to have an aberrant pancreatic duct which communicated with a juxtagastric cyst. Excision of a gastric antral duplication cyst and the aberrant pancreas was curative. Of the five previously reported cases, none of which had endoscopic retrograde cholangiopancreatography before surgery, all but one required multiple operations before the correct diagnosis was made.