Synovial fluid analysis: Difference between revisions
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== Interpretation == |
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=== Synovial Fluid Eosinophilia === |
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* Uncommon finding on arthrocentesis |
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* Unclear cutoff for clinical relevance (>2 to 10%) |
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* Etiologies can include: idiopathic, pseudo-allergic (in atopic patients and/or with dermatographia), post-arthrography, [[Lyme disease]], [[filariasis]], [[rheumatoid arthritis]], [[psoriatic arthritis]], [[dracunculiasis]], [[CML]], and [[Sjögren syndrome]][[CiteRef::vazquez-trinanes2012sy]] |
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[[Category:Investigations]] |
[[Category:Investigations]] |
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Latest revision as of 14:50, 19 February 2026
Interpretation
| Normal | Noninflammatory | Inflammatory | Septic | Hemorrhagic | |
|---|---|---|---|---|---|
| Volume | <3.5 ml | >3.5 | >3.5 | >3.5 | >3.5 |
| Clarity | Transparent | Transparent | Translucent-opaque | Opaque | Bloody |
| Colour | Clear | Yellow | Yellow | Yellow | Red |
| Viscosity | High | High | Low | Variable | Variable |
| WBC | <200 | 0 to 2000 | >2000 | >20,000 | Variable |
| PMN % | <25 | <25 | ≥50 | ≥75 | 50-75 |
| Culture | Often positive |
Synovial Fluid Eosinophilia
- Uncommon finding on arthrocentesis
- Unclear cutoff for clinical relevance (>2 to 10%)
- Etiologies can include: idiopathic, pseudo-allergic (in atopic patients and/or with dermatographia), post-arthrography, Lyme disease, filariasis, rheumatoid arthritis, psoriatic arthritis, dracunculiasis, CML, and Sjögren syndrome1
References
- ^ C. Vazquez-Trinanes, B. Sopena, L. Gonzalez-Gonzalez, R. Diaz, A. Rivera, M. Freire, C. Martinez-Vazquez. Synovial fluid eosinophilia: a case series with a long follow-up and literature review. Rheumatology. 2012;52(2):346-351. doi:10.1093/rheumatology/kes236.
