Cholecystoduodenal fistula presenting with upper gastrointestinal bleeding: A case report

Figure 1 Radiologic images. A: Computed tomography revealed a gallstone (arrow) and a non-dilated gallbladder with wall thickening, suggestive of chronic cholecystitis; B: The gallbladder was adherent to duodenum in coronal view.

Figure 2 Endoscopic images. A: Esophagogastroduodenoscopy revealed an opening at the anterior wall of the duodenal bulb; B: Closer image of duodenal bulb; C: The opening was filled with a blood clot, suggestive of bleeding from cholecystoduodenal fistula.

Figure 3 Pathologic image of resected gallbladder. Microscopy shows the fistula in the lower portion of gallbladder mucosa (arrow, hematoxylin & eosin stain, × 15).