Pancreatic internal fistula to the left pleural cavity.

A case of recurrent pancreaticopleural effusion is presented. The pleural effusion with high enzyme and protein contents resulted from a pancreatic internal fistula to the left pleural cavity. A sinus tract passing through esophageal hiatus was demonstrated by the endoscopic retrograde pancreatography (ERP). Surgical intervention afforded complete relief of abdominal pain and elimination of the pleural effusion.