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Immune-related adverse events of the hepatobiliary and pancreatic systems Takahiro Komori 1 1Department of Radiology Kanazawa University Keyword: 免疫関連有害事象 , 免疫チェックポイント阻害薬 , 肝胆膵障害 pp.449-454
Published Date 2026/5/10
DOI https://doi.org/10.18888/rp.0000003124
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Immune checkpoint inhibitor(ICI)are widely used for various malignancies but can cause immune-related adverse event(irAE)affecting multiple organs. In the hepatopancreatobiliary region, irAE range from asymptomatic liver enzyme elevation to severe cholangitis and autoimmune pancreatitis-like manifestations. These conditions often present with nonspecific clinical findings, making imaging crucial for detection and differential diagnosis. Characteristic radiologic patterns, together with clinical history and laboratory data, aid in distinguishing irAE from infection, tumor progression, or other inflammatory diseases. This article summarizes the pathophysiology, imaging features, differential diagnoses, and potential pitfalls of ICI-associated hepatobiliary and pancreatic irAE.


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電子版ISSN 印刷版ISSN 0009-9252 金原出版

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