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Trichophyton ajelloi isolated from a child

D G Presbury, C N Young

    Sabouraudia
    |September 1, 1978
    PubMed
    Summary

    A rare case of widespread tinea corporis in a child caused by Trichophyton ajelloi is described. This unusual fungal strain produced both microconidia and macroconidia and was found to be pathogenic in guinea pigs.

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    Area of Science:

    • Dermatology
    • Mycology
    • Infectious Diseases

    Background:

    • Tinea corporis, a superficial fungal infection, typically presents with characteristic skin lesions.
    • Trichophyton species are common causative agents of dermatophytosis.
    • Unusual presentations or isolates of dermatophytes warrant further investigation.

    Observation:

    • A young child presented with extensive tinea corporis.
    • The causative agent was identified as Trichophyton ajelloi.
    • The fungal isolate exhibited an atypical morphology with abundant microconidia alongside typical macroconidia.

    Findings:

    • The case highlights an unusual morphological variant of Trichophyton ajelloi.
    • Experimental inoculation demonstrated the pathogenicity of this specific isolate in a guinea pig model.
    • This finding expands the known phenotypic spectrum of Trichophyton ajelloi.

    Implications:

    • This case contributes to the understanding of dermatophyte diversity and pathogenicity.
    • It underscores the importance of detailed morphological analysis in fungal identification.
    • Further research may explore the genetic or environmental factors contributing to this atypical morphology and pathogenicity.

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