Bouveret's syndrome, the obstruction of the duodenal passage by a large gallstone, is a rare manifestation of hiliary lithiasis. Patients with gallstone ileus represent approximately 29} of all patients with mechanical bowel obstruction. Approximately 3% (1 to t0(;-~: .) of all patiems with g:dtskme itetts have Bouveret's syndrome (2, 3, 6), and the authors nicely present and document one of these rare cases. Bou,,erel's syndrome in its classic but rarely encountered lbrm (25%! radiologically presenls wkh