Small intestine & ampulla

Infectious disorders


Topic Completed: 1 August 2012

Minor changes: 18 September 2020

Copyright: 2003-2021,, Inc.

PubMed Search: Mycobacteria[TIAB] small bowel

See also: Tuberculosis

Hanni Gulwani, M.B.B.S.
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Cite this page: Gulwani H. Mycobacteria. website. Accessed December 6th, 2021.
Definition / general
  • Aerobic and nonmotile bacteria without endospores or capsules that typically cause small bowel disease only in immunosuppressed or HIV+, usually as part of disseminated infection
Case reports
Microscopic (histologic) description
  • Foamy macrophages fill lamina propria
  • Usually patchy, no fat vacuoles
Microscopic (histologic) images

Images hosted on other servers:

Disseminated Mycobacterium
avium intracellulare
(MAC) with nodular infiltration
of duodenum

Positive stains
Differential diagnosis
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