Telangiectasia is a common condition that affects many otherwise healthy people. But can also be a sign of a more serious disease.
Telangiectasias (commonly known as "spider veins") are dilated or broken blood vessels located near the surface of the skin or mucous membranes. They often appear as fine pink or red lines, which temporarily whiten when pressed. "Matted" telangiectasias are clusters of these small dilated blood vessels that form a pink or red patch on the skin. Individuals who are otherwise healthy can develop this condition, and it is sometimes associated with varicose veins.
However, telangiectasias are also a classic feature of certain autoimmune diseases that affect the skin and other connective tissues (also called connective tissue diseases):
There are many different causes of telangiectasia. Any of the above-mentioned connective tissue diseases can cause it. But, perhaps most commonly, fair-skinned people develop them on areas their body that have chronic sun damage. They can also be found on the sides of the nose in othwerise healthy adults.
Pregnant women and people with any of the following conditions are more likely to develop telangiectasias:
Connective tissue diseases often cause telangiectasia to develop on the face and on fingernail or toenail 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, evidence suggests they occur more frequently in patients with limited scleroderma (CREST).
The precise factors that cause scleroderma patients to develop telangiectasias are unknown. However, some researchers believe that they are a manifestation of the body’s attempt to increase blood flow to organ tissues that have poor circulation. Thus, in scleroderma, telangiectasia may be a marker of ongoing vascular injury and failed repair.
Researchers have also identified the following facts and findings about telangiectasia 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. Telangiectasia that appear as dilated loops of capillaries with the avascular areas (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.
Telangiectasia of the nailfolds also occur in individuals with lupus and correlate with systemic disease activity and Raynaud’s phenomenon. Telangiectasias may also be found on the edges of lesions of discoid lupus. (This is a skin-only illness in which a specific rash, mostly a scarring rash of circular-shaped lesions, occurs without other lupus symptoms.)
First, consult a dermatologist. Dermatologists commonly evaluate and treat patients who experience telangiectasias. Because symptoms that affect your skin can function as a "window" to your internal health, the dermatologist will determine the cause of the telangiectasia and start treatments or refer you to a rheumatologist if a connective tissue disease is suspected.
The dermatologist will perform a history and physical examination. He or she will also review your medications and effects of associated health conditions.
Activities that trigger blushing or facial redness can worsen telangiectasia. Although they vary from person to person, common triggers include:
Products that result in irritation of the skin, such as abrasive cleansers, can also worsen telangiectasia.
Telangiectasias themselves actually pose no health problems or risk. However, there are treatments available to improve their appearance. These include: