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Pathology
Arthropathy caused by calcium pyrophosphate (CPP) crystals
Aetiology
Primary or secondary hyperparathyroidism, haemochromatosis, hypothyroidism, hypophosphataemia, Wilson’s Disease.
Signs
Joint effusions
Symptoms
Monoarthritis, painful, swollen, hot, erythematous joint for 7-14 days
Most common sites are shoulders, knees and wrists
Investigations
Joint aspirate: Positively Birefringent Rhomboid-shaped crystals
Imaging: X-Rays show Chondrocalcinosis
Treatment
Conservative: Rest
Medical: NSAIDs, intra-articular steroids
Prognosis
Destructive changes like osteoarthritis
Degenerative arthritis
Key Facts
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Key Images
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Key References
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