Kiyoko Oshima, M.D., Ph.D.

Headshot of Kiyoko Oshima
  • Director of Clinical Hepatic Pathology
  • Associate Professor of Pathology

Languages: English, Japanese



Research Interests

Hepatobiliary; Pathology


The Johns Hopkins Hospital (Main Entrance)

1800 Orleans St.
Sheikh Zayed Tower
Baltimore, MD 21287
Phone: 410-955-3580 | Fax: 410-502-1493
The Johns Hopkins Hospital (Main Entrance) - Google Maps


Dr. Oshima is a hepatobiliary and gastrointestinal pathologist and the director of the Johns Hopkins Liver Pathology Service. more


  • Director of Clinical Hepatic Pathology
  • Associate Professor of Pathology

Departments / Divisions

  • Pathology - Gastroenterology and Liver Pathology



  • MD; Jikei University School of Medicine (1983)


  • Pathology; Advocate Illinois Masonic Medical Center (2000)
  • Surgery; Daisan Hospital - Jikei University School of Medicine (1988)


  • Anatomic Pathology; David Geffen School of Medicine at UCLA (2002)
  • Blood Banking/Transfusion Medicine; University of Chicago Medicine (2001)

Board Certifications

  • American Board of Pathology (Anatomic & Clinical Pathology) (2001)

Research & Publications

Research Summary

Her research focuses on the study of neoplastic and non-neoplastic processes of the hepatobiliary system. Her ongoing projects include:

  1. 2D and 3D morphologic analysis of cholangiocarcinoma
  2. 2D and 3D morphologic analysis of hepatocytes regeneration in acute and chronic liver failure

Selected Publications

Yoshizawa T, Hong SM, Jung D, Noe M, Keimen A, Wu P, Wirtz D, Hruban R, Wood L, Oshima K. Three dimensional analysis of extrahepatic cholangiocarcinoma and tumor budding. J Pathol. 2020 Aug; 251(4):400-410

Rowan DJ, Logunova V, Oshima K. Measured residual tumor cellularity correlates with survival in neoadjuvant treated pancreatic ductal adenocarcinomas. Ann Diagn Pathol. 2019 Feb; 38:93-98

Eskandari F, Rowan DJ, Hari P, Kapke J, Schneidewend R, E Hagen C, Oshima K. Liver biopsy findings in patients with hematopoietic cell transplantation. Hum Pathol. 2017 Aug; 66:136-143

Pant M, Oshima K. Cholesteryl Ester Storage Disease: An underdiagnosed cause of cirrhosis in adults. Ann Diagn Pathol. 2017 Dec; 31:66-70

Lee JW, Zhang Y, Yoshizawa T, Argani P, Wood LD, Oshima K. Cancerization of ducts in hilar   cholangiocarcinoma. Virchows Arch. 2022 May 9

Activities & Honors


  • Faculty of the Year, Saint Louis University, 2008 - 2009
  • Faculty Teacher of the Year, Medical College of Wisconsin, 2013 - 2014


  • Hans Popper Hepatopathology Society

    Membership committee

  • Rogger C. Haggitt Gastrointestinal Pathology Society

    Educational Travel and Awards Committee

  • United States and Canadian Academy of Pathology
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