Evolving gallstone ileus: the gallstone as it migrates and t
Description Gallstone ileus is a rare cause of bowel obstruction (1–4%).1 It is usually preceded by cholecystitis, which facilitates the adherence of the inflamed gallbladder to the adjacent gut. If the gallbladder has an impacted gallstone, this could erode through the wall of the gallbladder into the gut, forming a cholecystoenteric fistula. As they pass through the bowels, the larger stones (>2.5 cm) can get impacted, mainly in the terminal ileum, causing mechanical obstruction.2 Gallstone ileus is associated with high mortality (12–17%), largely due to the high-risk population it usually occurs in, typically elderly people with multiple comorbidities....