TY - CHAP M1 - Book, Section TI - Leishmaniasis A1 - Onayemi, Emmanuel Olaniyi A2 - Kelly, A. Paul A2 - Taylor, Susan C. A2 - Lim, Henry W. A2 - Serrano, Ana Maria Anido Y1 - 2016 N1 - T2 - Taylor and Kelly's Dermatology for Skin of Color, 2e AB - KEY POINTSLeishmaniasis is a chronic protozoan infection, described independently in 1903 by Leishman and Donovan.There are at least 20 species of the protozoa that cause leishmaniasis in humans.Certain species of leishmaniasis cause visceral leishmaniasis (eg, Leishmania infantum and Leishmania donovani), and others cause cutaneous disease (eg, Leishmania major and Leishmania tropica).Emerging research has demonstrated that these species-specific presentations may not be absolute because some species can cause both types of infections.The transmission of infection is primarily through the bite of sandflies of the genus Phlebotomus (Old World) or Lutzomyia (New World). Rarely, transmission can occur through shared syringes, by blood transfusion, or congenitally from mother to infant.The sandfly usually bites at night and outdoors, although they have rarely been reported to bite during the day and indoors.Leishmaniasis presents with lesions of the skin, mucous membranes, or internal organs, and the presentation is dependent on a number of factors including the infecting species of Leishmania, its virulence, number of parasites inoculated, site of bite, and the nutritional status and immune response of the host.Diagnosis can be made clinically, particularly in endemic areas, or via microscopic examination of Giemsa-stained smear, leishmanin skin test, histologic examination of biopsy specimen, or serologic techniques including polymerase chain reaction technology.Treatment modalities include topical or systemic chemotherapy, physical methods, and surgical intervention.Recovery from infection confers lifelong immunity.Prevention is always superior to treatment and cure. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - dermatology.mhmedical.com/content.aspx?aid=1161548692 ER -