Hematobilia resulting from heterotopic stomach in the gallbladder neck.

Hemorrhage has never been described as a complication of gastric heterotopia of the gallbladder. A case of a heterotopic stomach perforated into the Calot's area and causing hematobilia by arteriobiliary fistula in a young man is described. The clinical presentation, radiologic features, operative and histologic findings are presented, as well as the mechanism of hematobilia and the probable embryologic cause. Extensive review of the literature indicates that this case is unique both in its presentation of hematobilia and by the pathologic configuration of the heterotopic gastric tissue.