Abstract
A case of benign duodenocolic fistula found in a 76-year-old man is reported. His chief complaints were abdominal distension, upper abdominal pain, nausea and vomiting. Gastrointestinal fluoroscopy easily revealed a duodenocolic fistula, and enema fluoroscopy and endoscopy also showed the presence of a fistula but no malignant findings. Biliary examination revealed a dilation of the common bile duct but the gallbladder was not visualized. Moreover, no gallstones were seen.
By surgery performed with the aim of closing the fistula, no malignant findings were found but a high-grade adhesion centering around the gallbladder was present. However, a fistula between the gallbladder and the duodenum was revealed by detachment of the adhesion. Each fistula was excised and closed. The post-operative course was uneventful.
Many cases of duodenocolic fistula are derived from malignant diseases, especially colonic carcinoma, and the benign cases is very rare. In Japan, only 12 cases of benign duodenocolic fistula have been reported in the literature, this case making the 13th.
