Video
Peroral cholangioscopy showed a 20-mm-diameter, stalked, floating, round mass in the hilar region. The surface of the tumor was covered with white fur, and the tumor tissue was partially exposed in a map-like pattern. The mass was penetrable even with a guidewire, and it bled easily. Biopsies were performed using biopsy forceps, and the tumor bled easily even with biopsy.
Abbreviations:
HCC (hepatocellular carcinoma), POCS (peroral cholangioscopy)Case presentation



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- Video 1
Peroral cholangioscopy showed a 20-mm-diameter, stalked, floating, round mass in the hilar region. The surface of the tumor was covered with white fur, and the tumor tissue was partially exposed in a map-like pattern. The mass was penetrable even with a guidewire, and it bled easily. Biopsies were performed using biopsy forceps, and the tumor bled easily even with biopsy.
References
- Hepatectomy for hepatocellular carcinoma with bile duct tumor thrombus, including cases with obstructive jaundice.Ann Surg Oncol. 2016; 23: 2627-2634
- Two cases of hepatocellular carcinoma with bile duct invasion, but without a detectable tumor in the liver.Jpn J Gastroenterol Surg. 2003; 36: 482-487
- Diagnosis of bile duct hepatocellular carcinoma thrombus without obvious intrahepatic mass.World J Gastroenterol. 2010; 16: 4998-5004
- An icteric type hepatocellular carcinoma with no detectable tumor in the liver: report of a case.Surg Today. 2006; 36: 633-637
- Using single-operator cholangioscopy for endoscopic evaluation of indeterminate biliary strictures: results from a large multinational registry.Endoscopy. 2020; 52: 574-582
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