Endoscopic mucosal resection of a bile duct polyp: A case report

Figure 1 Magnetic resonance imaging. A: Axial T2 weighted image showing a fistula connecting the bile duct (white arrow) and the duodenal bulb (blue arrow) which had a gas-liquid plane inside. Inside the fistula, there was a hypointense lesion (yellow arrow); B: Axial T1 weighted image contrast enhanced showing no enhancement of the bile duct (white arrow), duodenal bulb (blue arrow), or lesion (yellow arrow).