Endoscopic direct visualization of gallbladder polypoid lesion using peroral digital single-operator cholangioscopy.

Contrast-enhanced computed tomography (CT) showed a suspicious gallbladder tumor with enhancement, measuring 20 mm (Fig. Gallbladder polypoid lesions include neoplasms and a variety of benign inflammatory, granular, and hyperplastic lesions. [Extracted from the article]