Small bowel (small intestine)
Reviewer: Hanni Gulwani, M.D. (see Reviewers page)
Revised: 18 December 2012, last major update August 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.
See also Tuberculosis
● 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
● 31 year old woman with HIV and upper GI bleeding (Clin Infect Dis 2009;48:321, answer to quiz)
● Foamy macrophages fill lamina propria
● Usually patchy, no fat vacuoles
Disseminated Mycobacterium avium intracellulare complex (MAC) with nodular infiltration of duodenum
Acid-fast stain: site unspecified
● PAS (faintly positive bacillary forms), acid-fast stains
● Whipple’s disease
End of Small bowel (small intestine) > Infectious disorders > Mycobacteria
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