<unk><unk><unk>  crystals are associated with a range of clinical syndromes, which have been given various names, based upon which clinical symptoms or radiographic findings are most prominent. A task force of the European League Against Rheumatism (EULAR) made recommendations on preferred terminology. Accordingly,<unk><unk><unk>  (CPPD) is an umbrella term for the various clinical subsets, whose naming reflects an emphasis on particular features. For example, pseudogout refers to the acute symptoms of joint inflammation or synovitis: red, tender, and swollen joints that may resemble gouty arthritis (a similar condition in which monosodium urate crystals are deposited within the joints). Chondrocalcinosis, on the other hand, refers to the radiographic evidence of calcification in hyaline and/or fibrocartilage. "Osteoarthritis (OA) with CPPD" reflects a situation where osteoarthritis features are the most apparent.<unk>  arthropathy refers to several of these situations.
Calcium pyrophosphate dihydrate crystal deposition disease
Gout
Ectopic calcification
Metastatic calcification
AA amyloidosis
Secondary systemic amyloidosis
Crystal arthropathy
Cartilage tumor