Histologically, there is an increase in pigmentation in the basal layer. Nevus spilus is a flat brown patch within which are dots of dark brown or blackish-brown areas of hyperpigmentation (Figure 4).

Dr. Li Li shares why annual skin checks with advanced tech like mole mapping are essential for skin cancer prevention.

Hirayama and Suzuki [13] examined the histological findings of 450 cases of nevus of Ota and classified the condition according to the distribution of the dermal melanocytes as follows ...