Ectopic opening of the common bile duct into the stomach

Retrospective analysis of cases with an ectopic opening of the common bile duct into duodenal bulb

“…However, it has been reported in the 3 rd or 4 th portion of the duodenum, pyloric canal, duodenal bulb, and the stomach. [2][3][4][5] The clinical and endoscopic features, and the significance of EOCBD are not sufficiently known. It is associated with benign biliary diseases, but usually manifests with recurrent duodenal ulcer, bulbus deformity with accompanying dilatation of the extra-and intrahepatic bile ducts with pneumobilia and stone.…”

Ectopic Opening of the Common Bile Duct Accompanied by Choledochocele and Pancreas Divisum

“…Some previous reports described the presence of the major papilla in the second portion of the duodenum (1, 6, 7). In other reports, the pancreatic duct was visualized in fewer than half of the total cases (2)(3)(4)(5)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17), which suggests the possibility of another orifice joining with the pancreatic duct. Moreover, from the viewpoint of the embryonic process, the presence of the major papilla is consistent with Boyden's theory (30), as described above.…”

“…Previous reports have suggested that the incidence of PD in autopsy cases is about 9% (21,22). To our knowledge, this is the first report of an ectopic opening of the CBD into the duodenal bulb accompanied by choledochocele and PD (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17). Choledochocele concomitant with PD is also rare, with only three case reports having been published (25)(26)(27); therefore, our case is extremely rare.…”

“…Ectopic opening of the common bile duct (CBD) is a rare congenital biliary anomaly, with the CBD emptying into anomalous sites such as the third or fourth portion of the duodenum, stomach, or duodenal bulb (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17). Choledochocele is also a biliary anomaly, with cystic dilatation of the intraduodenal segment of the CBD (18)(19)(20).…”

Recurrent gastric ulcer and cholangitis caused by ectopic drainage of the bile duct into the stomach

“…Furthermore, there are even rarer cases of secondary changes to the biliary system with fistula formation due to inflammation or malignancy. In most cases of developmental ectopic bile drainage, there is an orifice into the duodenum and only very rarely into the stomach [ 2 ], [ 3 ], [ 4 ]. As seen in the described case, an ectopic orifice of the bile duct into the pyloric region can be associated with different problems.…”