Tired, aching, ANA-positive: does your patient have lupus or fibromyalgia?

Cleve Clin J Med · 2002

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Abstract

The symptoms of fibromyalgia and lupus can be similar, but the treatments are very different. Although the antinuclear antibody (ANA) test has often been used to make the distinction, this approach has its pitfalls. This paper offers strategies for more accurate diagnosis.