Mycobacterium avium-intracellulare

Topic Completed: 1 August 2012

Minor changes: 1 September 2020

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PubMed Search: Mycobacterium avium-intracellulare complex

Elliot Weisenberg, M.D.
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Cite this page: Weisenberg E. Mycobacterium avium-intracellulare. website. Accessed November 29th, 2021.
Definition / general
  • Organism ubiqitous in soil, water, dust
  • Infection usually in setting of AIDS with disseminated disease
Microscopic (histologic) description
  • Lamina propria filled with monotonous infiltrate of foamy histiocytes, no granulomas
Positive stains
  • Ziehl-Neelson, modified Fite stain, other acid fast bacilli stains
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