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Telangiectasia

  • Definition
    • Telangiectasias are small, widened blood vessels on the skin. They are usually harmless, but may be associated with several diseases.

  • Alternative Names
    • Vascular ectasias; Spider veins

  • Causes
    • Telangiectasias may develop anywhere within the body. But they are most easily seen on the skin, mucous membranes, and whites of the eyes. Usually, they do not cause symptoms. Some telangiectasias bleed and cause significant problems. Telangiectasias may also occur in the brain and cause major problems from bleeding.

      Causes may include:

      • Rosacea
      • Aging
      • Genetics
      • Pregnancy
      • Sun exposure
      • Varicose veins

      Diseases associated with this condition include:

  • When to Contact a Medical Professional
    • Call your health care provider if you notice enlarged vessels in the skin, mucous membranes, or eyes.

  • What to Expect at Your Office Visit
    • The provider will perform a physical exam and ask about your symptoms, including:

      • Where are the blood vessels located?
      • Do they bleed easily and without reason?
      • What other symptoms are present?

      Tests may be needed to diagnose or rule out a medical condition. Tests may include:

      Sclerotherapy is the treatment for telangectasias on the legs. In this procedure, a saline (salt) solution or other chemical is injected directly into the spider veins on the legs. Laser treatment is typically used to treat telangiectasias of the face.

  • References
    • James WD, Berger TG, Elston DM. Cutaneous vascular diseases. In: James WD, Berger TG, Elston DM, eds. Andrews' Diseases of the Skin: Clinical Dermatology. 11th ed. Philadelphia, PA: Elsevier Saunders; 2011:chap 35.

      Kelly R, Baker C. Other vascular disorders. In: Bolognia JL, Jorizzo JL, Schaffer JV, eds. Dermatology. 3rd ed. Philadelphia, PA: Elsevier Saunders; 2012:chap 106.