dark brow birthmark or naevus on male leg

abnormalities adult birthmark black blood brown cafe calms caucasian childhood closeup dark dermatologist dot dye epidermal flammeus flat freckles harmless health hemangioma human hyperpigmentation infantile irregular lait laser leg macule male man medical medicine melanoma naevus nevis nevus patche people person pigment pigmentation pulsed skin spot treatment vascular vessels