What are the tests for systemic sclerosis?

Biopsy, blood: In advanced stages, no test is required. It if the diagnosis is suspected early, a skin biopsy will usually prove the diagnosis. In the blood, the scl-70 and the anti-centromere antibody tests are the most helpful. Other tests may be positive. The above two blood tests often help differentiate the disease from other conditions. Other tests are used to evaluate but not diagnose the condition.