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Polyarthropathy
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Differential diagnosis
- Postviral
- RA
- Seronegative arthritis
- OA
- Post-streptococcal - usually teenagers
- SLE
- Juvenile chronic arthritis - under 16
- Polyarticular gout
- Pseudogout
- Septicaemic arthritis
- PMR
- PAN
- Hypertrophic pulmonary osteoarthropathy
- Para-neoplastic syndromes
- Fibromyalgia
Investigations
- Hb
- ESR
- ?urate
- Aspirate joint
- ANA (SLE unlikely if negative)
- X-rays