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Limited scleroderma, also known as CREST syndrome, is one subtype of scleroderma — a condition whose name means "hardened skin."
The skin changes associated with limited scleroderma typically occur only in the lower arms and legs, below the elbows and knees, and sometimes affect the face and neck. Limited scleroderma can also affect your digestive tract, heart, lungs or kidneys.
The problems caused by limited scleroderma may be minor. Sometimes, however, the disease affects the lungs or heart, with potentially serious results. Limited scleroderma has no known cure. Treatments focus on managing symptoms, preventing serious complications and improving quality of life.