Metastatic melanoma presenting as malignant biliary obstruction of the common bile duct demonstrated with single-operator digital cholangioscopy - Prapimphan Aumpansub, MD; Phonthep Angsuwatcharakon, MD; Naruemon Wisedopas, MD; Wiriyaporn Ridtitid, MD; Rungsun Rerknimitr, MD (VideoGIE, 2017)