Debulking surgery for non-radically resectable intraductal papillary neoplasm of the bile duct: Three case reports and literature review

Figure 3 Postoperative magnetic resonance imaging and cholangioscopy of patient 1 and patient 2. Postoperative magnetic resonance imaging (MRI) of patient 1 (A-C); A: Postoperative magnetic resonance cholangiopancreatography showing dilatation of the intrahepatic and extrahepatic bile ducts; B: T2-weighted image showing a T-tube within the common bile duct; C: T2-weighted imaging showing numerous papillary lesions within the dilated bile ducts of the atrophic right posterior lobe; D and E: Postoperative contrast-enhanced MRI of patient 2 showing residual papillary lesions exhibiting mild arterial enhancement (D) and appearing isointense in the venous phase (E) within dilated bile ducts; F: Percutaneous transhepatic cholangioscopy via T-tube of patient 2 showing bleeding intraductal papillary lesions.