A case of gallstone ileus displaying spontaneous closure of cholecystoduodenal fistula after enterolithotomy

INTRODUCTIONGallstone ileus, a rare complication of cholelithiasis and cholecystitis, is a relatively rare cause of alimentary tract obstruction. It is usually associated with a cholecystoenteric fistula through which a gallstone has passed into the gastrointestinal tract. Cholecystoenteric fistula uncommonly closes spontaneously, the period between formation and closure having rarely been reported. In addition, endoscopic detection of cholecystoenteric fistulous closure has seldom been reported.PRESENTATION OF CASEWe report a 51-year-old Japanese man with gallstone ileus in whom spontaneous closure of a cholecystoduodenal fistula was observed by endoscopy 2 weeks after laparoscopy-assisted enterolithotomy.DISCUSSIONLaparoscopy-assisted enterolithotomy for gallstone ileus allows direct diagnosis of gallstone ileus and assessment of the status of adhesions affecting the biliary tract.CONCLUSIONEndoscopic confirmation of fistulous closure after laparoscopy-assisted enterolithotomy is a minimally invasive approach that may avert the need for biliary surgery.