Unusual presentation and treatment of biliary ileus with long term follow up: case report and review of the literature.

Gallstone ileus is a rare complication of cholelithiasis. It accounts for 25% of nonstrangulated small bowel obstructions in patients over the age of 65 years. The morbidity and mortality rate of gallstone ileus remains very high, partly because of misdiagnosis or delayed diagnosis. The two surgical options are: a) enterolithotomy with removal of impacted stone, cholecystectomy, and fistula repair at the same surgical operation (i.e., "one-stage" procedure) and b) enterolithotomy with stone extraction followed or not by elective biliary surgery. The latter is the most popular surgical approach, whereas enterolithotomy combined with cholecistectomy and fistulectomy is indicated only in selected cases. In this article, a case of biliary ileus with unusual presentation treated by entherolithotomy alone with long term follow up is described, and the literature on this subject is reviewed and discussed.