The pathogenic mechanism of alopecia areata is, even today, one of the most intriguing enigmas of dermatology.1 Hair recovery in alopecia areata usually occurs as a uniform process of the affected areas, with thin, sometimes white hair emerging first, followed by the appearance of hair that is healthy in color and texture. I report a case of alopecia areata in which a patient's hair began to regrow in a targetoid pattern.
del Río E. Targetoid Hair Regrowth in Alopecia Areata: The Wave Theory. Arch Dermatol. 1998;134(8):1042-1043. doi: