Port-wine Stain
Port-wine stains are vascular birth marks present in 0.5 percent of newborns. They are also called "capillary malformation" or "nevus flammeus". They are skin level marks in pink-red or purplish color that are present since birth. Although they can be observed on any part of the skin and mucosal surfaces, they are most common on the face. Their sizes vary, while they can be present in a very small area of the body, they can also take up half of the body. Port-wine stains grow proportionately with the child's growth. They can sometimes get darker in years and bulge out from the skin by slightly thickening.