All dermatophytes can cause tinea corporis. Environmental heat and moisture are important contributors to the development of tinea corporis. When widespread, systemic disease or malnutrition may be present. Repetitive exposure to infected animals is a risk factor. Differential Diagnosis A variety of diagnostic techniques are available with which to identify superficial fungal infection.
Topical therapies are usually effective for mild tinea corporis.
Topical agents available include imidazole preparations, allylamines, and adjunctive agents. Topical creams are typically applied twice daily to the affected areas. Granulomatous lesions also require systemic therapy. Demonstration of fungus through KOH preparation, culture, or biopsy should precede therapy. Systemic imidazoles, terbinafine, or griseofulvin may be used.