P62+ hyaline inclusions in intrahepatic cholangiocarcinoma associated with viral hepatitis or alcoholic liver disease

Shinichi Aishima, Nobuhiro Fujita, Yohei Mano, Tomohiro Iguchi, Akinobu Taketomi, Yoshihiko Maehara, Yoshinao Oda, Masazumi Tsuneyoshi

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Mallory bodies (MBs) and hyaline globules (HGs) are recognized as hepatocellular cytoplasmic inclusions in liver diseases. We reviewed 123 intrahepatic cholangiocarcinomas (ICCs) and encountered 16 cases (13.0%) in which cancer cells had MB-type inclusions and/or HG-type inclusions, both of which are positive for p62 and ubiquitin. The HG type was present in all 16 cases, and 5 cases contained the MB type. Of 16 patients, 12 had chronic liver disease that was related to alcoholic abuse in 4, hepatitis B surface antigen - positive in 3, and hepatitis C virus antibody - positive in 8. Viral infection and liver cirrhosis were more common in ICCs with p62+ inclusions (P = .0004 and P = .0199, respectively). Of 16 ICCs, 15 with hyaline inclusions had a peripheral tumor location (P = .0052). On ultrastructural examination, the MB type had an electron-dense fibrillar appearance, while the HG type appeared as rounded masses of granular materials. Our results suggest that intracytoplasmic hyaline bodies occasionally can be found in cholangio-carcinoma with chronic liver disease related to viral hepatitis or alcoholic intake.

Original languageEnglish
Pages (from-to)457-465
Number of pages9
JournalAmerican Journal of Clinical Pathology
Volume134
Issue number3
DOIs
Publication statusPublished - Sep 2010

All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine

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