Spontaneous perforation--a rare complication of choledochal cyst.

We report a 2-year-old girl with spontaneous perforation of choledochal cyst. Preoperative diagnosis was possible by hepatobiliary scintigraphy. In view of emergency presentation and bile peritonitis, management was a staged procedure with peritoneal lavage and T-tube drainage of the biliary system, followed by excision of the cyst and Roux-en-Y hepatico-jejunostomy 3 months later.