Pardo-Castello,1 Neves and Costa,2 and Walsh3 reported the occurrence in Cuba, Brazil and Panama, respectively, of tinea nigra of the palm due to the black fungus Cladosporium wernecki.
There is no record of infection due to this organism occurring in the continental United States.
REPORT OF A CASE
A white girl aged 15 was observed in July 1948 because of several black macules on the right palm, which had appeared in 1945 after the patient had lived for three years in Tallahassee, Fla. At no time since 1939 had she resided in or visited an area south of that city.
The macules varied in hue and involved a greater or lesser area, the extent depending on the frequency of hand washing. More frequent washing reduced the size and number of the individual lesions, but they never entirely disappeared.
On first observation, in July 1948, there were
LELAND LS. TINEA NIGRA IN THE UNITED STATES. Arch Derm Syphilol. 1950;61(5):854–857. doi:10.1001/archderm.1950.01530120145016
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