Figure 1.

Trichoscopy (magnification ×20) showing the most frequent patterns of alopecia areata incognita (A) with empty yellow dots, yellow dots with vellus hair, small hair in regrowth, and pigtail hair; (B) empty yellow dots, yellow dots with vellus hair, and small hair in regrowth. Trichoscopy (magnification ×20) showing the most typical patterns of diffuse alopecia areata (C) with empty yellow dots + yellow dots with vellus hair + dystrophic hair; (D) empty yellow dots + yellow dots with vellus hair + black dots + dystrophic hair. [Copyright: ©2019 Alessandrini et al.]