A case of type 3 choledochal cyst masquerading as acute abdominal pain

A type 3 choledochal cyst, presenting with acute abdominal pain attacks, was diagnosed in a 24-year-old man. Previously he had undergone exploratory laparotomy for acute abdominal pain, which had proved negative. An internal drainage procedure was chosen as the surgical procedure. The patient is under constant follow-up because of the risk of a malignancy developing.