Liver and intrahepatic bile ducts - nontumor
Infectious (nonviral) disorders
Coxiella burnetii

Topic Completed: 1 May 2012

Revised: 23 January 2019, last major update May 2012

Copyright: (c) 2002-2017,, Inc.

PubMed Search: Coxiella burnetii[TI] liver

Komal Arora, M.D.
Page views in 2019: 164
Page views in 2020 to date: 40
Cite this page: Arora K. Coxiella burnetii. website. Accessed March 31st, 2020.
Definition / general
  • Rickettsia that causes Q fever, affecting respiratory tract and liver
Microscopic (histologic) description
  • Granulomas have central vacuole surrounded by hyaline ring ("doughnut" granulomas, may not be present in every section)
  • Portal and lobular lymphohistiocytic infiltrate, hepatocellular necrosis, steatosis
Differential diagnosis
Additional references
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