Trichorrhexis Invaginata in Tinea Capitis: A Rare Occurrence

An 8-year-old male presented with a rare case of trichorrhexis invaginata (TI) in tinea capitis, characterized by a 5 cm × 5 cm alopecic patch with erythema and scale-crusts on the scalp. Trichoscopic examination revealed features such as black dots, broken hairs, and the golf-tee sign, while light microscopy showed the invagination of the distal hair shaft into the proximal shaft. Fungal culture identified Trichophyton verrucosum, and treatment with oral micronized griseofulvin led to significant improvement. This case highlights the unusual occurrence of TI in tinea capitis, typically associated with Netherton syndrome, and contributes to the understanding of TI's etiology.