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Nódulo cutáneo de feohyphomycosis en una mujer joven
María Carolina Rojas1, Karen Viviana Arévalo2, Gerzaín Rodríguez3
1Facultad de Medicina, Universidad de La Sabana, Chía, Colombia.
Biomedica : revista del Instituto Nacional de Salud
|August 27, 2025
Resumen
Se diagnosticó un caso raro de feohyphomycosis cutánea en una mujer que presentaba un nódulo en el muslo. La histopatología reveló elementos fúngicos característicos, lo que lo distingue de la cromoblastomicosis.
Área de la Ciencia:
- Dermatología
- Micología
- Patología
Sus antecedentes:
- Los nódulos cutáneos pueden presentar desafíos de diagnóstico, imitando lesiones benignas o neoplásicas.
- Las infecciones fúngicas, como la cromoblastomicosis y la feohyphomycosis, requieren una identificación histopatológica precisa.
Objetivo del estudio:
- Para reportar un caso de feohyphomycosis cutánea.
- Para resaltar las características diagnósticas que lo diferencian de la cromoblastomicosis.
- Para enfatizar la importancia de la histopatología en el diagnóstico de infecciones fúngicas raras.
Principales métodos:
- Presentación clínica de un nódulo de crecimiento lento en el muslo.
- Excisión quirúrgica y examen histopatológico del nódulo.
- Análisis microscópico de la morfología fúngica, incluidas las levaduras e hifas.
Principales resultados:
- La histopatología reveló granulomas dérmicos con células gigantes, micro abscesos, levaduras pigmentadas y hifas septadas.
- Las hifas moniliformes en cadenas lineales confirmaron feohyphomycosis cutánea, excluyendo la invasión hipodérmica.
- Se distingue de la cromoblastomicosis por las estructuras fúngicas específicas y la ausencia de invasión profunda.
Conclusiones:
- La feohyphomycosis cutánea puede presentarse como un nódulo localizado asintomático.
- La inflamación granulomatosa prominente con células gigantes es una característica clave.
- La identificación precisa del hongo a través de la histopatología es crucial para el diagnóstico y el tratamiento adecuados.
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