Gallstone ileus in a patient with Crohn's disease: a case report.

Gallstone ileus is a rare complication of cholelithiasis. Only 0,3-0,5% of all patients with gallstones will eventually suffer from this condition. It is well known that there is an increased prevalence of gallstones among patients with Crohn's disease, but gallstone ileus remains even in these patients an unfrequent condition. Because of the rarity of this disease and its presentation as an intestinal (sub)obstruction, mostly without biliary symptoms, diagnosis and surgical treatment are often delayed. We report the case of a 75-year-old woman with a long history of Crohn's disease presenting with intermittent symptoms of intestinal obstruction since several weeks. Symptoms were thought to be due to recurrence of Crohn's disease, but the patient did not respond to steroid therapy. Resection of the diseased ileocolic segment was performed and a large impacted stone was detected proximal of the stenotic segment. With this case report we want to emphasize how easily diagnosis of gallstone ileus can be missed, especially in Crohn's patients and we would like to discuss the different treatment options.