Crystal arthropathy

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Crystal arthropathy
Classification and external resources
ICD-10 M10-M11
ICD-9 712

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.[1]

Types include:

Name Substance Birefringence
Gout[2] accumulation of uric acid negative
Chondrocalcinosis[3] aka Pseudogout accumulation of calcium pyrophosphate positive

Risk factors[edit]


Differential Diagnosis[edit]


  1. ^ Mcgill NW (2000). "Gout and other crystal-associated arthropathies". Ballieri's Clinical Rheumatology 14 (3): 445–460. PMID 10985980. 
  2. ^ Choi H (May 2006). "Epidemiology of crystal arthropathy". Rheum. Dis. Clin. North Am. 32 (2): 255–73, v. doi:10.1016/j.rdc.2006.03.002. PMID 16716879. 
  3. ^ Canhão H, Fonseca JE, Leandro MJ, et al. (2001). "Cross-sectional study of 50 patients with calcium pyrophosphate dihydrate crystal arthropathy". Clin. Rheumatol. 20 (2): 119–22. doi:10.1007/s100670170081. PMID 11346223.