Chronic polyarthritis

Chronic polyarthritis is a topic covered in the Diagnosaurus.

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DDx

Inflammatory

  • Connective tissue disease, eg, rheumatoid arthritis, systemic lupus erythematosus, scleroderma, Sjögren's syndrome, adult Still's disease
  • Seronegative spondyloarthropathy, eg, reactive arthritis (Reiter's syndrome), psoriatic arthritis, ankylosing spondylitis, inflammatory bowel disease
  • Crystal-induced, eg, gout, pseudogout
  • Inflammatory osteoarthritis
  • Lyme disease
  • Paraneoplastic syndrome (especially in elderly, eg, hypertrophic pulmonary osteoarthropathy)

Noninflammatory

  • Osteoarthritis (degenerative joint disease)

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DDx

Inflammatory

  • Connective tissue disease, eg, rheumatoid arthritis, systemic lupus erythematosus, scleroderma, Sjögren's syndrome, adult Still's disease
  • Seronegative spondyloarthropathy, eg, reactive arthritis (Reiter's syndrome), psoriatic arthritis, ankylosing spondylitis, inflammatory bowel disease
  • Crystal-induced, eg, gout, pseudogout
  • Inflammatory osteoarthritis
  • Lyme disease
  • Paraneoplastic syndrome (especially in elderly, eg, hypertrophic pulmonary osteoarthropathy)

Noninflammatory

  • Osteoarthritis (degenerative joint disease)

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