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Related Experiment Videos

Photolocalized tinea facialis.

H J Brody, F F Castrow

    Cutis
    |May 1, 1976
    PubMed
    Summary

    A persistent facial rash initially misdiagnosed as a sun allergy was found to be tinea facialis, a fungal infection. This case highlights the importance of considering fungal infections in sun-exposed facial lesions.

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    Area of Science:

    • Dermatology
    • Mycology

    Background:

    • Tinea facialis is a fungal infection of the face.
    • Photosensitivity reactions can mimic other dermatological conditions.
    • Polymorphic light eruption is a common sun-induced rash.

    Observation:

    • A 34-year-old woman presented with a nine-month history of a facial rash.
    • The rash was erythematous, plaquelike, and involved eyelid lichenification, flaring outdoors.
    • Initial treatments with antibiotics, corticosteroids, and antimalarials were ineffective.

    Findings:

    • KOH preparation and skin biopsy confirmed fungal hyphae, diagnosing tinea facialis.
    • The patient experienced complete resolution with griseofulvin and MicTin.
    • The fungus may "photolocalize" to sun-exposed areas.

    Implications:

    • Tinea facialis should be considered in the differential diagnosis of facial dermatoses, especially those exacerbated by sun exposure.
    • Fungal infections can exhibit photosensitivity, complicating diagnosis.
    • This case underscores the need for thorough diagnostic evaluation of persistent facial lesions.

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