Lung - nontumor

Topic Completed: 1 September 2011

Revised: 29 January 2019, last major update September 2011

Copyright: (c) 2003-2017,, Inc.

PubMed search: blastomyces [title] lungs

Elliot Weisenberg, M.D.
Page views in 2019: 1,377
Page views in 2020 to date: 710
Cite this page: Weisenberg E. Blastomyces. website. Accessed May 31st, 2020.
Clinical features
  • See also Skin - nontumor chapter
  • Dimorphic fungus found in soil in Central and Southeastern United States and Canada (bordering Great Lakes, St. Lawrence River, Mississippi River and Ohio River basins), Mexico, Africa, India, Middle East
  • More common in males
  • Due to inhalation of soil containing microfoci of mycelia (Clin Microbiol Rev 2010;23:367)
  • Difficult to isolate in clinical microbiology laboratory
  • May present as consolidative pneumonia, ARDS or nodules resembling carcinoma; prefers upper lobes
  • May also infect skin and bone
  • Grossly often resembles tuberculosis
Microscopic (histologic) description
  • Mixed acute and granulomatous inflammation caused by large budding yeasts (15 - 10 μm) with broad based buds and refractile walls, easily seen with H&E
Microscopic (histologic) images

Images hosted on other servers:

Various images (skin or sputum)

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