Visceral involvement due to Leishmania Mexicana in a patient with acquired immunodeficiency syndrome  Isabel Nocito, BD, Esteban Serra, BD, PhD, Antonio Montero, MD, PhD  The American Journal of Medicine  Volume 113, Issue 3, Pages 260-262 (August 2002) DOI: 10.1016/S0002-9343(02)01206-8

Figure Hematoxylin-eosin stain (original magnification x1000) of the intestinal section revealing leishmaniasis (left panel); arrows indicate intracellular parasites. Ethidium bromide–stained agarose electrophoresis gel of amplification product obtained after multiplex polymerase chain reaction (right). bp = base pairs. The American Journal of Medicine 2002 113, 260-262DOI: (10.1016/S0002-9343(02)01206-8)