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[Translated article] Trichoscopy in Alopecia Areata

[Display omitted] Alopecia areata is an autoimmune disease that affects the hair follicle and can present as bald patches on the scalp and hair loss in other parts of the body. Diagnosis is clinical but can be aided by trichoscopy, a simple, rapid technique that reduces the need for invasive procedu...

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Bibliographic Details
Published in:Actas dermo-sifiliográficas 2023-01, Vol.114 (1), p.T25-T32
Main Authors: Gómez-Quispe, H., Muñoz Moreno-Arrones, O., Hermosa-Gelbard, Á., Vañó-Galván, S., Saceda-Corralo, D.
Format: Article
Language:English
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Summary:[Display omitted] Alopecia areata is an autoimmune disease that affects the hair follicle and can present as bald patches on the scalp and hair loss in other parts of the body. Diagnosis is clinical but can be aided by trichoscopy, a simple, rapid technique that reduces the need for invasive procedures and can also help with monitoring treatment response. We review the usefulness of trichoscopy in alopecia areata. The most common trichoscopic findings are yellow dots, black dots, exclamation mark hairs, short vellus hairs, and coudability hairs. Other, less common, findings can also help establish a diagnosis. Good response to treatment is indicated by the disappearance of black dots, broken hairs, and exclamation mark hairs. The observation of yellow dots, by contrast, indicates chronic disease and poor response to treatment. La alopecia areata es una enfermedad autoinmune que afecta al folículo piloso. Se presenta en forma de placas alopécicas e incluso pérdida de pelo corporal. El diagnóstico es clínico. Sin embargo, la tricoscopia, una técnica valiosa no invasiva, simple y rápida, mejora el diagnóstico, la monitorización del tratamiento y reduce la necesidad de procedimientos invasivos. Realizaremos una descripción de la utilidad de la tricoscopia en la alopecia areata. Los hallazgos tricoscópicos más frecuentes de la alopecia areata son los puntos amarillos, los puntos negros, pelos en signo de exclamación, pelos vellosos cortos y pelos acodados. Sin embargo, existen otros hallazgos menos frecuentes pero útiles para realizar el diagnóstico. La buena respuesta al tratamiento implica la desaparición de los puntos negros, los pelos rotos y los pelos en signo de exclamación, pero la presencia de los puntos amarillos indica enfermedad crónica y mala respuesta.
ISSN:0001-7310
2173-5778
DOI:10.1016/j.ad.2022.08.027