Acquired facial Blaschkoid melanocytic nevus in a young adult: An extreme rarity

Acquired melanocytic nevus (AMN) is a benign cluster of melanocytic nevus cells, which undergo stages of maturation with advancing age. These nevi may be solitary or multiple and they do not follow a typical pattern. A tendency to follow the lines of Blaschko is seen with some other types of nevi yet not with AMN. It could be because of the clonal proliferation of melanocytes due to the predisposing gene. Herein, we report an extremely rare case of AMN following lines of the Blaschko on the forehead of a young boy. Key words: Melanocytic nevus; Blaschkoid; Acquired