Mole (nevus): Development, types
Brief overview What is a birthmark (nevus, neavus)? A circumscribed, benign change of the skin or mucous membrane, usually different in color from its surroundings and congenital or acquired. Size, shape, color and other appearance can vary considerably. Types of birthmarks: most common are birthmarks based on pigment cells (pigment nevi), e.g. age spots, café-au-lait … Mole (nevus): Development, types