What is the role of synovial fluid analysis in the workup of Behçet disease?

Updated: Dec 21, 2020
  • Author: Nicole Davey-Ranasinghe, MD; Chief Editor: Herbert S Diamond, MD  more...
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Synovial fluid usually is cloudy with variable viscosity, and the white blood cell (WBC) counts are 300-36,000/µL (either noninflammatory or inflammatory). Polymorphonuclear leukocytes and protein elevations are the predominant findings, and glucose levels are near normal. Thus, because synovial fluid merely demonstrates general inflammation, examination serves only to rule out the presence of aseptic joint, crystal-induced arthropathy, or other alternative identifiable cause in patients with Behçet disease.

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