Mycobacterium Avium Intracellulare

Mycobacterium Avium Intracellulare •The duodenum has lost its usual villous pattern because of the infection •The lamina propria is filled granular histiocytes(arrows) •MAI was demonstrated in the histiocytes with an acid fast stain but can not be seen on H&E (Description By:Martin Nadel, M.D. ) (Image Contrib. by:Martin Nadel, M.D. UCHC )