Fig. 4From: Progression to invasive cancer after snare polypectomy of intracholecystic papillary neoplasms during gallbladder stone removal by percutaneous transhepatic choledochoscopy: a case reporta Transabdominal sonography findings. The gallbladder is almost completely filled with a papillary mass. b Magnetic resonance imaging findings. T2-weighted magnetic resonance imaging shows a papillary mass within the gallbladder. There is no evidence of gallbladder wall or liver invasionBack to article page