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Infecciones fúngicas superficiales por hongos
1Dermatology, UMDNJ-New Jersey Medical School, 185 South Orange Avenue, Newark, NJ 07103-2714, USA. roschwar@umdnj.edu
Lancet (London, England)
|September 29, 2004
Resumen
Este seminario cubre las infecciones fúngicas superficiales como tinea versicolor, piedra y tinea nigra. Estas infecciones son causadas por hongos específicos que afectan a la capa externa de la piel, el estrato córneo.
Área de la Ciencia:
- La micología médica La micología médica.
- Dermatología Dermatología dermatología.
- Enfermedades infecciosas Enfermedades infecciosas.
Sus antecedentes:
- Las infecciones fúngicas superficiales son causadas por patógenos limitados al estrato córneo.
- Estas infecciones suelen provocar una reacción tisular mínima o nula.
- Este seminario se centra en tres micosis superficiales distintas: la tinea versicolor, la piedra y la tinea nigra.
Objetivo del estudio:
- Para proporcionar una visión general completa de la tinea versicolor, piedra y tinea nigra.
- Discutir los agentes causantes y las características epidemiológicas de estas infecciones fúngicas.
- Para resaltar las principales características diagnósticas y clínicas, incluidos los diagnósticos diferenciales.
Principales métodos:
- Revisión de la literatura actual y las directrices clínicas.
- Síntesis de información sobre la etiología, la patogénesis y la presentación clínica de las infecciones fúngicas discutidas.
- Discusión de datos epidemiológicos y distribución geográfica.
Principales resultados:
- Tinea versicolor es una infección mundial causada por especies de Malassezia (por ejemplo, Malassezia furfur, Malassezia globosa, Malassezia sympodialis) que pueden hacer la transición de la levadura a las formas miceliales.
- La piedra blanca y la piedra negra prevalecen en las regiones tropicales, y la piedra blanca también se encuentra en zonas templadas. La piedra negra es causada por Piedraia hortae, mientras que la piedra blanca es el resultado de la especie Trichosporon.
- La Tinea nigra, común en las zonas tropicales, se caracteriza por una pigmentación oscura y puede confundirse con el melanoma.
Conclusiones:
- Las infecciones fúngicas superficiales representan un espectro de enfermedades con diferentes agentes causantes y distribuciones geográficas.
- La identificación exacta de los hongos causantes (Malassezia spp., Piedraia hortae, Trichosporon spp.) también es necesaria. es crucial para una gestión adecuada.
- Comprender la presentación clínica y el potencial de diagnóstico erróneo, como la tinea nigra con melanoma, es esencial para una atención efectiva al paciente.
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