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re 1. A, CT view showing an enhancing intraductal mass 3.8 cm long at the distal common bile duct, causing upstream biliary dilatation. holangiogram showing an irregular filling defect measuring… Click to show full abstract
re 1. A, CT view showing an enhancing intraductal mass 3.8 cm long at the distal common bile duct, causing upstream biliary dilatation. holangiogram showing an irregular filling defect measuring 4 cm in length at distal common bile duct. C, Single-operator digital cholangioscopic showing a large irregular brownish intraductal papillary mass at distal common bile duct. D-G, Histopathologic confirmation of diagnosis of malignant noma including pleomorphic, loosely cohesive cells with enlarged, hyperchromatic, and irregular nuclei of the tumor (D, arrow, H&E, orig. mag. 400) ining brown pigment (E) with positive staining for HMB-45 (orig. mag. 1000) (F) and Melan-A (orig. mag. 100) (G) protein (orig. mag. 100).
Journal Title: VideoGIE
Year Published: 2017
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