Crystal Arthropathy

Crystal arthropathy refers to a type of arthropathy characterized by accumulation of crystals in joints. Polarizing microscopy and application of other crystallographic techniques have improved identification of different microcrystals including monosodium urate, calcium-pyrophosphate dihydrate, calcium hydroxyapatite, and calcium oxalate.

Types include:

Name Substance Birefringence
Gout accumulation of uric acid negative
Chondrocalcinosis aka Pseudogout accumulation of calcium pyrophosphate positive

Read more about Crystal Arthropathy:  Risk Factors, Causes, Differential Diagnosis

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