title: Pathology of crystal deposition diseases.
abstract: Pathologic examinations of joint fluid and articular tissues can be valuable in diagnosis and evaluation of pathogenesis of crystal-associated arthropathies provided that careful attention is paid to processing of tissues. Urates, calcium pyrophosphate, and apatite-like crystals are most common in human lesions and are most widely studied.
mesh_terms: D001031:Apatites / Q000378:metabolism; D002130:Calcium Phosphates / Q000378:metabolism; D002131:Calcium Pyrophosphate / Q000378:metabolism; D002358:Cartilage, Articular / Q000473:pathology; D003461:Crystallography; D006073:Gout / Q000473:pathology; D006801:Humans; D007592:Joint Diseases / Q000378:metabolism / Q000473:pathology*; D012216:Rheumatic Diseases / Q000378:metabolism / Q000473:pathology*; D013583:Synovial Membrane / Q000473:pathology; D014527:Uric Acid / Q000378:metabolism
chemical_list: D001031:Apatites; D002130:Calcium Phosphates; C485828:alpha-tricalcium phosphate; C485830:tetracalcium phosphate; D014527:Uric Acid; C485838:calcium phosphate, monobasic, anhydrous; C020243:calcium phosphate; C485829:calcium phosphate, dibasic, anhydrous; D002131:Calcium Pyrophosphate