Superficial Mycotic Infections of the Foot in a Native Pediatric Population: A Pathogenic Role for Trichosporon cutaneum?

: Superficial mycotic infections of the feet are usually caused by Tricophyton rubrum, predominantly affecting adults and resulting from the use of occlusive footwear. We carried out a mycologic study of superficial foot infections in a rural school in Mexico where most people wear a leather, nonocc...

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Bibliographic Details
Published in:Pediatric dermatology 2003-07, Vol.20 (4), p.299-302
Main Authors: Archer-Dubon, Carla, Orozco-Topete, Rocío, Leyva-Santiago, Jaime, Arenas, Roberto, Carbajosa, Josefina, Ysunza, Alberto
Format: Article
Language:English
Subjects:
Adolescent
Biological and medical sciences
Candida
Candida glabrata
Child
Dermatomycoses - epidemiology
Dermatomycoses - microbiology
Female
Foot Dermatoses - epidemiology
Foot Dermatoses - microbiology
Human mycoses
Humans
Infectious diseases
Male
Medical sciences
Mexico - epidemiology
Mycoses
Mycoses of the skin
Onychomycosis - epidemiology
Onychomycosis - microbiology
Rural Population - statistics & numerical data
Shoes
Trichophyton mentagrophytes
Trichosporon - isolation & purification
Trichosporon - pathogenicity
Trichosporon cutaneum
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Summary:: Superficial mycotic infections of the feet are usually caused by Tricophyton rubrum, predominantly affecting adults and resulting from the use of occlusive footwear. We carried out a mycologic study of superficial foot infections in a rural school in Mexico where most people wear a leather, nonocclusive sandal. Forty students had clinical signs of 50 fungal infections of the foot: 39 athlete's foot and 11 onychomycosis. Thirty‐one boys and 9 girls were studied. Hyphae were seen in 11 cases of athlete's foot and 5 of onychomycosis. Twenty‐one cultures were positive (42%). The most frequently isolated fungi were the opportunistic Trichosporon cutaneum in 42.8%, Candida sp. (23.8%), Trichophyton mentagrophytes (23.8%), and Candida glabrata (9.5%). Superficial mycotic infections of the feet and nails were most frequent in children and adolescents who usually wear nonocclusive shoes. The most frequent pathogens were Candida sp. and T. mentagrophytes. It is interesting to note the prevalence of T. cutaneum that has recently been implicated in mycoses of the feet and nails. We did not isolate T. rubrum in any patient.
ISSN:0736-8046
1525-1470
DOI:10.1046/j.1525-1470.2003.20403.x