Precipitation of crystals in the synovium or synovial fluid causing acute or chronic symptoms in the articular space or adjoining tissues
Most common is monosodium urate (MU) crystals...
Usually rapid onset, hours to days, for gout or CPPD. Apatite and oxalate can be more insidious.
Gout typically monoarticular and peripheral (first MTP)
CPPD can be both monoarticular a...
Once the diagnosis of crystal arthropathy is made, initiate treatment without delay.
Application of ice or heat is generally not helpful and can cause further crystal precipit...
Gout: as indicated to control hyperuricemia
Monitor uric acid level within 6 weeks of diagnosis.
CPPD: Unlike MU crystals, CPPD crystal deposition is irreversible; ...
M11.9 Crystal arthropathy, unspecified
M11.20 Other chondrocalcinosis, unspecified site
M11.879 Other specified crystal arthropathies, unspecified ankle and foot
M1A.9XX0 Chronic gout, unspeci...
Gout is more commonly monoarticular, particularly affecting the MTP joint.
CPPD can be monoarticular or polyarticular; knee involvement is more common with CPPD.
Apatite and calcium oxal...
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