A Dermoscopic Clue for the Diagnosis of Traction Alopecia: Peripilar Keratin Casts Case Report

    Hakan Turan, Esma Uslu, Elife Başkan, Cihangir Aliağaoğlu
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    TLDR Peripilar keratin casts are a helpful sign for diagnosing traction alopecia.
    In 2015, a case report focused on a 34-year-old woman suffering from traction alopecia, a hair loss condition caused by excessive hair pulling due to certain hairstyles. The study emphasized the significance of peripilar keratin casts, cylindrical structures surrounding the hair shaft, as a valuable tool in diagnosing and monitoring this type of alopecia. These keratin casts, which form due to continuous hair traction, were frequently misdiagnosed as louse eggs or nits, or mistaken for squamous scalp diseases like psoriasis, pityriasis simplex, and seborrheic dermatitis.
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