Figure 1: Atypical genital nevus. a: Asymmetric junctional melanocytic proliferation with mild cytological atypia, composed of coalescent nests exhibiting a loss of cellular cohesion. The nests exhibit a loss of cellular cohesion and vary in size, shape, and position along the rete ridges. Cytoplasmatic pigmentation in the junctional and superficial dermal melanocytes. b: Atypia and mitotic figures were not identified in the superficial part of the dermis, but maturation was invariably present (Hematoxylin-eosin stain, 400X).