A port-wine stain is a birthmark in which swollen blood vessels create a reddish-purplish discoloration of the skin.
Early-stage port-wine stains are usually flat and pink. As the child gets older, the color may deepen to a dark red or purplish color. They occur most often on the face, but can appear anywhere on the body. Over time, the area can become thickened and take on a cobblestone-like appearance.
Exams and Tests
The health care provider can usually diagnose a port wine stain by looking at the skin.
An MRI or CT scan of the brain may also be done.
Many treatments have been tried for port-wine stains, including freezing, surgery, radiation, and tattooing.
Laser therapy is most successful in eliminating port-wine stains. It is the only method that can destroy the tiny blood vessels in the skin without significantly damaging the skin. The exact type of laser used depends on the person's age and particular port-wine stain.
Stains on the face respond better to laser therapy than those on the arms, legs, or middle of the body. Older stains may be more difficult to treat.
Some stains may occasionally cause deformity and increasing disfigurement.
People with port-wine stains may have emotional and social problems related to their appearance.
Port-wine stains that involve the upper and lower eyelids may be associated with the development of glaucoma.
Neurologic problems are present when port-wine stain is associated with a disorder such as Sturge-Weber syndrome.
When to Contact a Medical Professional
All birthmarks should be evaluated by the health care provider during a routine examination.
Enjolras O. Vascular malformations. In: Bolognia JL, Jorizzo JL, Schaffer JV, eds. Dermatology. 3rd ed. Philadelphia, PA: Elsevier Saunders; 2012:chap 104.
Krakowski AC, Eichenfield LF. Port wine stain ('nevus flammeus'). In: Lebwohl MG, Heymann WR, Berth-Jones J, Coulson I. Treatment of Skin Disease: Comprehensive Therapeutic Strategies. 4th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 193.
Martin KL. Vascular disorders. In: Kliegman RM, Stanton BF, St. Geme, Schor NF, eds. Nelson Textbook of Pediatrics. 20th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 650.
Update Date 4/14/2015
Updated by: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.