Fig. 4From: Duodenal imaging on the spotlight: from A to ZBiliary ileus. CT coronal reformation (a) shows air in the gallbladder (arrowhead) and communication between its lumen and D2—cholecystoduodenal fistula (arrow). Axial CT scans (b) show a 2 cm-wide elliptical gallstone impacted at the distal jejunum (arrow). Coronal reformation 9c) shows air-filled dilated small bowel loops (asterisk)Back to article page