How is rheumatic fever differentiated from rheumatoid arthritis (RA)?

Updated: Mar 05, 2021
  • Author: Howard R Smith, MD; Chief Editor: Herbert S Diamond, MD  more...
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Rheumatic fever is characterized by the migratory nature of the arthritis, an elevated anti-streptolysin O titer, and a more dramatic and prompt response to aspirin. Carditis and erythema marginatus may occur in adults, but chorea and subcutaneous nodules virtually never do.

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