large red-brown spot on lower back of child from birth. removal of skin pigmentation and vascular malformation.

abnormality baby babyhood back benign birth birthmark blemish blood body brown cancer capillary care child close condition congenital day dermatologist dermatology diagnosis disease diversity epidermis health human kid large laser lower malformation mark medicine melanoma methods mole nevus patch people pigment pigmentation problem redbrown reddish removal sensitive sign skin spot stain structure symptom therapy treatment ugly vascular vessels vitiligo wine world