case_images: PMC2666152_01
case_images: A gallstone in the duodenum and a distended stomach was seen on CT scan.
case_images: GRP2009-914951.001.jpg
case_images: PMC2666152_01_GRP2009-914951.001.jpg
case_images: fig1
case_images: CT of the abdomen revealed pneumobilia, the presence of a biliary stent, a distended stomach and a 3.3 cm hypodense oval object in the second portion of the duodenum suggestive of Bouveret's Syndrome (Figure 1). 
case_images: Endoscopic image showing the gallstone causing obstruction.
case_images: GRP2009-914951.002.jpg
case_images: PMC2666152_01_GRP2009-914951.002.jpg
case_images: fig2
case_images: Initial esophagogastroduodenoscopy (EGD) revealed large amounts of fluid and food content in the stomach with poor visualization of the duodenum due to retained food and a large stone in the second part of duodenum causing complete obstruction of its lumen (Figure 2).
case_images: Fistula and surrounding ulceration of the duodenum on endoscopy.
case_images: GRP2009-914951.003.jpg
case_images: PMC2666152_01_GRP2009-914951.003.jpg
case_images: fig3
case_images: A cholecystoduodenal fistula was visualized beneath the level of the stone on subsequent endoscopy (Figure 3).