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