Free intra-peritoneal gall-stones following laparoscopic cholecystectomy.

Laparoscopic cholecystectomy is now the operation of choice for symptomatic gall-bladder stones. Two cases of retained free intra-peritoneal gall-stones following this procedure are described; the first resulting in a peritoneal granuloma and causing initial confusion in diagnosis, and the second seen incidentally in a biloma. In the appropriate clinical setting free intra-peritoneal gall-stones must be added to the differential diagnosis of abdominal and pelvic calcification.