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Stasis dermatitis and ulcers



Dermatitis, stasis on the leg
Dermatitis, stasis on the leg


Stasis dermatitis and ulcers

Definition:

Stasis dermatitis is a skin condition caused by fluid building up under the skin. This fluid buildup, or swelling, is caused by poor circulation in the veins (venous insufficiency). Eventually, poor circulation can lead to ulcers (craters) in the skin.


Alternative Names:


venous stasis ulcers; ulcers - venous


Causes, incidence, and risk factors:

Varicose veins, congestive heart failure, and other conditions can cause the arms and legs to swell, especially in the feet and ankles. This swelling is caused when plasma (the fluid portion of blood) leaks out of the blood vessels and into the tissues.

The excess fluid in the tissues interferes with the blood's ability to feed the tissue cells and dispose of cellular waste products. The tissue becomes poorly nourished and fragile, resulting in stasis dermatitis. The disorder is common on the ankles because there is less supportive tissue in this area.

The skin becomes thin and inflamed, and open ulcers may form and heal slowly. The skin may darken. The skin, initially thin, may later thicken, perhaps because of itching and scratching of the area.





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