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The Roll of Endoscopy for the Diagnosis of Hilar Biliary Stricture Akio KATANUMA 1 , Kazuki HAMA 1 , Ryo ANDO 1 , Risa NAKAMURA 1 , Kousuke IWANO 1 , Haruka TOYONAGA 1 , Tatsuya ISHII 1 , Takao SHIMIZU 1 , Toshifumi KIN 1 1Center for Gastroenterology, Teine-Keijinkai Hospital, Hokkaido, Japan Keyword: hilar cholangiocarcinoma , benign biliary stricture , ERCP , EUS , cholangioscope pp.1061-1066
Published Date 2022/6/25
DOI https://doi.org/10.24479/endo.0000000227
  • Abstract
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 Endoscopic diagnosis of hilar stricture plays a significant role in the differential diagnosis of benign or malignant disease and in diagnosing the tumor extension to determine the treatment strategy. In addition to ERCP-related procedures, endoscopic diagnosis and histological evaluation can be performed by Convex EUS. Cytology has a sensitivity of 30-57% and specificity of 90-100%, biopsy has a 43-81% and 90-100%, respectively. The diagnosis of horizontal extension is important in determining the surgical procedure, and it is necessary to select an examination method that is appropriate for the type of tumor.


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電子版ISSN 印刷版ISSN 0915-3217 東京医学社

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