Tinea capitis: advances and a needed paradigm shift.

ABSTRACT

PURPOSE OF REVIEW Tinea capitis, a superficial infection of the scalp, is the most common pediatric dermatophyte fungal infection worldwide and is particularly common in the USA in low-income, low-resource settings. There are still gaps in knowledge and heterogeneities in practice in terms of diagnostic and management strategies. Furthermore, there are no clinical guidelines for management and treatment of tinea capitis in the USA. This review aims to summarize recent advances, recommend optimal management for the practicing pediatrician, and identify areas for future research for tinea capitis. RECENT FINDINGS: Trichophyton tonsurans infections are best treated with terbinafine and Microsporum canis infections are best treated with griseofulvin. Trichophyton tonsurans is the predominant cause of tinea capitis in the USA, although the main gold standard of treatment in the USA is griseofulvin. Dermatophyte antifungal resistance is an active area of investigation but seems to not be of current concern for tinea capitis in the USA. SUMMARY: We recommend all clinical providers ascertain the causative organism in fungal infection, either through fungal culture or newer methods which may become more readily available and cost-effective in the future, such as polymerase chain reaction assay. We also recommend terbinafine as first-line treatment of tinea capitis, with adjustment as necessary after species identification.