Idiopathic benign stricture of the common bile duct

An unusual case of idiopathic benign stricture of the intrapancreatic portion of the common bile duct is described. Because of the absence of a history of pancreatitis or an operation upon the biliary tract, the obstruction was thought to be due to malignancy. However, histologic studies of tissues removed by pancreaticoduodenectomy established that the lesion was a benign stricture.