Enterolith ileus: a rare complication of small bowel diverticulosis

An elderly patient with subacute small bowel obstruction due to an enterolith that evolved within a small bowel diverticulum is reported. Presence of small bowel diverticulum is not rare. But small bowel obstruction secondary to an enterolith formed within a small bowel diverticulum is a rare complication. Enterolith ileus closely resembles gallstone ileus in its clinical presentation. Diagnosis can be established only by documenting the absence of aerobilia and the presence of small bowel abnormality causing stasis, like small bowel diverticulosis.