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Port-wine stain

Definition

A port-wine stain is a birthmark in which swollen blood vessels create a reddish-purplish discoloration of the skin.

Causes

Port-wine stains are caused by an abnormal formation of tiny blood vessels in the skin.

In rare cases, port-wine stains are a sign of or .

Symptoms

Early-stage port-wine stains are usually flat and pink. As the child gets older, the stain grows with the child and the color may deepen to dark red or purple. Port-wine stains 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

Your health care provider can usually diagnose a port-wine stain by looking at your skin.

In a few cases, a skin biopsy is needed. Depending on the location of the birthmark and other symptoms, the provider may want to do an test of the eye or .

An MRI or CT scan of the brain may also be done.

Treatment

Many treatments have been tried for port-wine stains, including freezing, surgery, radiation, and tattooing.

Laser therapy is most successful in removing port-wine stains. It is the only method that can destroy the tiny blood vessels in the skin without causing much damage to the skin. The exact type of laser used depends on the person's age, skin type, and particular port-wine stain.

Outlook (Prognosis)

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.

Possible Complications

Complications may include:

  • Deformity and increasing disfigurement
  • Emotional and social problems related to their appearance
  • Development of in people with port-wine stains involving upper and lower eyelids
  • Neurologic problems 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 provider during a routine examination.

    References

    Dinulos JGH. Vascular tumors and malformations. In: Dinulos JGH, ed. Habif's Clinical Dermatology. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 23.

    Kelly KM, Arkin L, Baugh EG, Tran JM. Laser treatment of vascular lesions. In: Tanzi EL, Dover JS, eds. Procedures in Cosmetic Dermatology: Lasers, Lights, and Energy Devices. 5th ed. Philadelphia, PA: Elsevier; 2023:chap 2.

    Moss C, Browne F. Mosaicism and linear lesions. In: Bolognia JL, Schaffer JV, Cerroni L, eds. Dermatology. 4th ed. Philadelphia, PA: Elsevier; 2018:chap 62.

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    Contact Atlanta Obsetrics and Gynaecology at The Womens Center Millennium Hospital - 404-ATL-BABY

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    Review Date: 6/7/2023

    Reviewed By: Elika Hoss, MD, Assistant Professor of Dermatology, Mayo Clinic, Scottsdale, AZ. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.