Transient Treatment Response of Platelet-Rich Plasma Injection for Temporal Triangular Alopecia: A Case Report with Dermoscopic Examination Follow-Up

January 2020 in “ International Journal of Trichology ”

Suparuj Lueangarun, Sarun Pacharapakornpong, Therdpong Tempark

platelet-rich plasma temporal triangular alopecia PRP dermoscopic examination vellus hairs hair thinning

TLDR PRP injections are not effective for long-term treatment of temporal triangular alopecia.

This case report described a 58-year-old male with temporal triangular alopecia (TTA) treated with platelet-rich plasma (PRP) injections. The treatment involved 5 monthly sessions of 2 ml PRP injections. Dermoscopic follow-up showed an increase in the number and thickness of vellus hairs, but the overall clinical improvement was unsatisfactory, with hair thinning recurring 6 months after treatment discontinuation. The study concluded that PRP might not be a suitable treatment for TTA due to its transient response and limited efficacy. Further research was recommended to explore better treatment options for TTA.

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