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Tropical ulcer is also known as Annam ulcer, Mozambique ulcer, Chaco (Argentine) ulcer, coast ulcer (Paraná), Goyana ulcer, Vincent's ulcer and phagedenic ulcer of hot countries. The name tropical ulcer is not quite correct, for the lesion is encountered not only in tropical countries but in subtropical and temperate regions; nor can the name tropical ulcer be justified by the fact that this ulcer is more frequent in the tropics than in other regions, because other equally ulcerative diseases, such as American leishmaniasis, are more frequently encountered in tropical regions. The geographic names are purely regional, while the name phagedenic ulcer of hot countries is improper for the reasons just mentioned. Though the name Vincent's ulcer would be the most acceptable, I have used the name tropical ulcer, which is the one hallowed by general use. This disease occurs chiefly in the tropics; in Africa it is encountered in
COSTA OG. TROPICAL ULCER. Arch Derm Syphilol. 1944;49(4):260–263. doi:10.1001/archderm.1944.01510100036011
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