The role of scalp dermoscopy in the diagnosis of alopecia areata incognita

    Antonella Tosti, David Whiting, Matilde Iorizzo, Massimiliano Pazzaglia, Cosimo Misciali, Colombina Vincenzi, Giuseppe Micali
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    TLDR Scalp dermoscopy is good for diagnosing a type of hair loss and helps choose the best spots for biopsy.
    From 2002 to 2006, a study involving 70 patients with alopecia areata incognita (AAI) utilized clinical examination and videodermoscopy, with 50 patients also undergoing scalp biopsy. The study revealed that a key dermoscopic sign of AAI was the presence of numerous, diffuse, round or polycyclic yellow dots, along with short regrowing hairs. These dermoscopic features were consistent with the histological findings from the biopsies. The research concluded that videodermoscopy is an effective diagnostic tool for AAI, aiding in the identification of the most suitable biopsy sites and potentially reducing the number of unnecessary biopsies.
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