Small intestine & ampulla
Infectious disorders
Mycobacteria
Author: Hanni Gulwani, M.B.B.S.
Topic Completed: 1 August 2012
Minor changes: 12 March 2019
Copyright: 2003-2019, PathologyOutlines.com, Inc.
PubMed Search: Mycobacteria[TIAB] small bowel
See also: Tuberculosis
Table of Contents
Definition / general | Case reports | Microscopic (histologic) description | Microscopic (histologic) images | Positive stains | Differential diagnosisCite this page: Gulwani H. Mycobacteria. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/smallbowelmycobacteria.html. Accessed August 11th, 2020.
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
- 31 year old woman with HIV and upper GI bleeding (Clin Infect Dis 2009;48:321, Clin Infect Dis 2009;48:368 [answer to quiz])
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 complex
(MAC) with nodular infiltration
of duodenum
Differential diagnosis
