1973 年 15 巻 2 号 p. 160-165
The endoscopic findings of the duodenal papillary region are discussed with 132 cases, on which the endoscopic cholangiographies are performed. The longitudinal fold of the papillary regions are classified into 3 types, the expanded type, the nonexpanded type and the neutral type. In this report, these 3 types of the papillary region are compared with the findings of distal common bile duct. The results and findings obtained are summarized as follows ; 1)The expanded type shows the dilatation of common bile duct. 2)The neutral type also reveals the dilatation of common bile buct. 3)Almost of the nonexpanded types show nondila-ted common bile ducts, but it is difficult to negrect the diseases of the biliary system.