title: Perihilar cholangiocarcinoma arising in hepatitis C virus-related liver cirrhosis with hepatocellular carcinoma.
abstract: Liver cirrhosis is reportedly one of the conditions preceding peripheral-type intrahepatic cholangiocarcinoma but not hilar/perihilar cholangiocarcinoma. Herein, we report a case of perihilar cholangiocarcinoma arising in a hepatitis C virus-related cirrhotic liver. The patient was a 69-year-old man. He was diagnosed with hepatitis C virus-related chronic hepatitis at the age of 56 years, and 9 years later, multiple hepatocellular carcinomas were detected by imaging modalities. Despite treatments, including chemotherapy, he died of hepatic failure at the age of 69 years. At autopsy, in addition to multiple nodules of hepatocellular carcinoma, we found a white mucinous and fibrous tumor spreading from the hepatic hilum to the periphery along the left lateral segmental bile ducts in the advanced cirrhotic liver. This tumor was histologically a cholangiocarcinoma that involved mainly the peribiliary glands and showed variable cystic dilation, suggesting that it might have been derived from these peribiliary glands. Immunohistochemically, the cholangiocarcinoma cells were positive for cytokeratin 7 and mucin core protein 1, and negative for cytokeratin 20 and mucin core protein 2. Hilar/perihilar cholangiocarcinoma arising in hepatitis C virus-related liver cirrhosis has rarely been reported. This case warrants further studies to clarify the possible involvement of hepatitis C virus in tumorigenesis of hilar/perihilar cholangiocarcinoma.
authors: Department of Human Pathology, Kanazawa University Graduate School of Medicine, 13-1 Takara-machi, Kanazawa 920-8640, Japan.
authors: Takahiko
authors: T
authors: Fujii
authors: Yoh
authors: Y
authors: Zen
authors: Yasuni
authors: Y
authors: Nakanuma
mesh_terms: D001650:Bile Duct Neoplasms / Q000473:pathology*; D001653:Bile Ducts, Intrahepatic; D006528:Carcinoma, Hepatocellular / Q000473:pathology*; D018281:Cholangiocarcinoma / Q000473:pathology*; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D019698:Hepatitis C, Chronic / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D008103:Liver Cirrhosis / Q000175:diagnosis / Q000209:etiology*; D008113:Liver Neoplasms / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary
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