Mycobacterium Avium Intracellulare x40
Mycobacterium Avium Intracellulare x40

Histiocyte(black arrow) characteristic of those found with MAI
The presence of this finding is not diagnostic of MAI but should raise an index of suspicion particularly in an immunodeficiant host
Similar histiocytes are found in Whipple's Disease in H&E stained sections
(Description By:Martin Nadel, M.D. )
(Image Contrib. by:Martin Nadel, M.D. UCHC )