Most common site of Gallstone ileus:
Gallstone ileus is an unusual complication of chronic cholecystitis due to impaction of gallstone in ileum after passing through a biliary-enteric fistula. Impacted gallstone usually in the terminal ileum at ileocecal valve Rigler's Triad: Pneumobilia Small bowel obstruction Gallstone at terminal ileum
Caecum
2nd pa of duodenum
Terminal ileum
Stomach
Misc.