Pseudogout (cppd)

Etiology

  • Precipitation of calcium pyrophosphate crystals

Risk Factors

  • Age > 50
  • Tendency to affect joints w/established OA/trauma
  • Relatively uncommon (< 1/1000)
  • Also assoc w/hyperparathyroidism, hypothyroid, hemochromatosis; often idiopathic

Symptoms

  • Acute joint pain and inflammation
  • Typically larger joints: knees, hips, shoulders, elbows, wrists, hands
  • Can look like gout
  • Often self limited
  • Can be recurrent

Physical Exam Findings

  • Warmth
  • Redness
  • Effusion and pain w/movement of affected joint