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  • Title: American cutaneous leishmaniasis.
    Author: Royer MA, Crowe CO.
    Journal: Arch Pathol Lab Med; 2002 Apr; 126(4):471-3. PubMed ID: 11900576.
    Abstract:
    We present 3 cases of American cutaneous leishmaniasis occurring in soldiers of a unit of US Army Rangers who parachuted into the jungles of Panama. Shortly after returning to the United States, these 3 soldiers each developed a crusted, indurated papule, which slowly enlarged during the following 6 weeks. Routine microscopy of skin biopsies revealed a dermal granulomatous inflammation and a predominantly lymphoid infiltrate. Numerous histiocytes contained small oval organisms with bar-shaped paranuclear kinetoplasts, morphologically consistent with leishmanial parasites. Cultures grew Leishmaniasis brasiliensis, subspecies panamensis. The soldiers were treated with intravenous pentavalent antimonial therapy daily for 20 days with good clinical improvement. Epidemics of leishmaniasis occur periodically in tropical regions of the world, and leishmaniasis has emerged in new settings, for example, as an acquired immunodeficiency syndrome-associated opportunistic infection. With an increasingly mobile society, it is important to be familiar with the clinical and histopathologic appearance of conditions such as leishmaniasis, which are common in tropical and subtropical regions and are increasingly significant in other regions of the world.
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