[Formation of a fistula as complication of a pancreatic abscess (author's transl)].

The formation of cysto-enteric fistula is a rare complication of pseudo-cysts and pancreatic abscess. The etiology, the types, and their treatment are analysed. The authors present a new case of cysto-colonic fistula due to pancreatic abscess after acute pancreatitis, which is the 29th case reported in the literature.