Fig. 1From: Natural history of intracholecystic papillary neoplasm (ICPN): a rare case of ICPN whose natural history was closely followed by ultrasoundAnnual change of ultrasonography’s findings. A Multiple polyps with maximum diameter 3 mm. B Sessile polyp in the gallbladder body (white arrow). C Sessile polyp slightly enlarged with 1 year later (white arrow)Back to article page