Telangiectasias are dilated blood vessels located near the surface of the skin or mucous membranes. They often appear as fine pink or red lines, which temporarily whiten under pressure. Matted telangiectasias are clusters of these small dilated blood vessels that form a pink or red patch on the skin. Although otherwise healthy individuals may develop this condition, telangiectasias are a cardinal feature of systemic and limited scleroderma, as well as dermatomyositis.
There are many causes of telangiectasias. Perhaps most commonly, telangiectasias are found in areas of chronic sun damage in fair-skinned individuals. They can also be seen on the sides of the nose in healthy adults.
Conditions associated with telangiectasias include:
Connective tissue diseases associated with telangiectasias include:
Connective tissue diseases often cause telangiectasias to develop on the face and fingernail folds (where the skin meets the nail).
Patients with scleroderma may develop telangiectasias on the face, mucous membranes, and hands. The condition occurs with both types of scleroderma:
Telangiectasias become more numerous over time in both types of the disease, however, they are thought to occur more frequently in patients with limited scleroderma.
Although the precise factors involved in the development of telangiectasias are unknown, some experts believe that they are a manifestation of the bodyís attempt to increase blood flow to organ tissue with poor circulation. Thus, in scleroderma, telangiectasias may be a marker of ongoing vascular injury and failed repair.
Researchers have also identified the following facts and findings about telangiectasias in individuals with scleroderma:
In individuals with dermatomyositis, telangiectasias are typically found in sun-exposed areas, such as the V-shaped area of the neck and chest or in a "shawl" distribution over the shoulders, arms, and upper back. They can be associated with brown discoloration and thinning of the skin, a clinical finding called poikiloderma. This tends to occur in patients with long standing dermatomyositis. Telangiectasias that appear as dilated loops of capillaries with avascular areas (lacking blood vessels) on the fingernail folds are highly characteristic of both scleroderma and dermatomyositis. These findings can help physicians make an early diagnosis of these conditions.
Telangiectasias of the nailfolds also occur in individuals with lupus and correlate with systemic disease activity and Raynaudís phenomenon. Telangiectasias may also be found on the edges of lesions of discoid lupus.
What should I do if I have telangiectasias?
Dermatologists commonly evaluate and treat patients with telangiectasias. Because the skin can function as a window to internal health, the dermatologist will determine the cause of the telangiectasias and initiate the appropriate work-up.
What can you expect from a doctorís visit for telangiectasias?
The dermatologist will perform a history and physical examination. He or she will also review your medications and effects of associated health conditions.
Can telangiectasias be prevented?
Activities that trigger blushing or facial redness can worsen telangiectasias. Although triggers are different for each individual, common culprits include:
Products that result in irritation of the skin, such as abrasive cleansers, can also worsen telangiectasias.
The following tips are recommended:
Are there treatments for telangiectasias?
Although telangiectasias themselves pose no adverse health risk, there are treatments available to improve their appearance.
Cosmetic camouflage is a technique using topical creams or powders to conceal conspicuous skin conditions. Flesh-toned cover-up can immediately hide mild telangiectasias. For more prominent telangiectasias and facial redness, a slightly green-tinted foundation or moisturizer can neutralize the color. These compounds are cost effective and readily available. Look for products with the terms "redness concealer," "redness relief," or "redness solutions." Department stores with large make-up counters will often have a cosmetic therapist (make-up artist) trained to help patients with cosmetic camouflage. He or she will help create a regimen to match individual skin tone and hide telangiectasias.
This form of therapy uses a specific wavelength of light to selectively heat hemoglobin (the protein responsible for the red color of blood) and seal dilated blood vessels. Superficial facial telangiectasias are amenable to laser treatment. In scleroderma, due to thickened collagen fibers, telangiectasias are more resistant to laser therapy, but can be effectively cleared with multiple treatments. However, this does not prevent new telangiectasias from forming and subsequent treatments may be required to maintain the desired effects. Individuals considering laser therapy for telangiectasias should be aware that insurance plans deem these treatments to be "cosmetic" and do not yet cover this expense.
Electrodessication entails the insertion of fine needle into the blood vessel. An electrical current is then applied, which seals the vessel. This treatment may be helpful for simple facial telangiectasias; however, it has a higher risk of scarring compared to laser therapy.
Edited by Nancy Novick.