Subphrenic abscess caused by gallstones "lost" at laparoscopic cholecystectomy one year previously: management by minimally invasive techniques.

Gallstones lost into the peritoneal cavity rarely cause symptoms. This case report describes the development of a subphrenic abscess 1 year after laparoscopic cholecystectomy due to lost gallstones, and it's management by the adaptation of routine urological minimally invasive techniques.