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December 1952

DERMAL LEISHMANIASIS: Report of a Case with Exceptionally Prolonged Incubation Period

Author Affiliations


From the Department of Pathology, Vancouver General Hospital.

AMA Arch Derm Syphilol. 1952;66(6):746-748. doi:10.1001/archderm.1952.01530310084012

Cutaneous leishmaniasis (Baghdad boil, oriental sore, etc.) is caused by the protozoan organism Leishmania trophica. This organism is indistinguishable morphologically and culturally from Leishmania donovani, the causal organism of visceral leishmaniasis, or kala-azar.

The condition is widespread in Africa and Asia. In Europe, cases are reported from Italy, mainly in the southern half, although some cases have been reported from the northern half. It is endemic in Sicily and very common in Crete. Isolated cases have been reported from the east coast of Spain and from the eastern Pyrenees in France.

Seven cases have been reported in Canada, all the patients having contracted the disease in endemic areas overseas.1 Similarly, approximately 30 cases have been reported in the United States.2 The insect vector of this disease is generally conceded to be the sandfly Phlebotomus papatasii. Despite the fact that Packchanian3 reports that some six species of Phlebotomus

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