Granuloma associated with systemic Mycobacterium infection, gill tissue
Granuloma associated with systemic <i >Mycobacterium</i> infection, gill tissue
Granuloma associated with systemic Mycobacterium infection, gill tissue

    Photomicrograph of gill tissue showing a granuloma that was associated with a systemic Mycobacterium infection. Unstained wet mount; original magnification, 100×.

Courtesy of Dr. Ruth Francis-Floyd.