La alopecia areata (AA) es una tricopatía autoinmune no cicatrizal. Su prevalencia en Europa se calcula que puede llegar a 0.5-1 por 1,000 habitantes. 1 En el Centro Dermatológico «Dr. Ladislao de la Pascua» representa 1.7% del total de la consulta. 2 En su etiopatogenia están implicados factores genéticos, autoinmunes y externos. Clínicamente se caracteriza por la presencia de placas alopécicas de
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