Systemic Scleroderma - Diagnosis

Diagnosis

Diagnosis is by clinical suspicion, presence of autoantibodies (specifically anti-centromere and anti-scl70/anti-topoisomerase antibodies) and occasionally by biopsy. Of the antibodies, 90% have a detectable anti-nuclear antibody. Anti-centromere antibody is more common in the limited form (80-90%) than in the diffuse form (10%), and anti-scl70 is more common in the diffuse form (30-40%) and in African-American patients (who are more susceptible to the systemic form).

In 1980 the American College of Rheumatology agreed upon diagnostic criteria for scleroderma.

Other conditions may mimic systemic sclerosis by causing hardening of the skin. Diagnostic hints that another disorder is responsible include the absence of Raynaud's phenomenon, a lack of abnormalities in the skin on the hands, a lack of internal organ involvement, and a normal antinuclear antibodies test result.

Read more about this topic:  Systemic Scleroderma

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