Port wine stains are always present at birth. Common locations include the face and neck, but they may be present anywhere on the body. Port wine stains may appear in association with other syndromes. Hemangiomas are tumors made-up of dilated blood vessels that usually appear shortly after birth, although they may be present at birth. Hemangiomas on the face can be disfiguring and may interfere with visual development or cause obstruction of the airway.
Involution is the process where a hemangioma begins to lighten and become less prominent.
These may begin as flat, red spots and later become larger and elevated.