References
- Pascual E. The diagnosis of gout and CPPD crystal arthropathy. Br J Rheumatol 1996;35:306–8.
- Gordon C, Swan A, Dieppe P. Detection of crystals in synovial fluids by light microscopy: sensitivity and reliability. Ann Rheum Dis 1989;48:737–42.
- Swan A, Amer H, Dieppe P. The value of synovial fluid assays in the diagnosis of joint disease: a literature survey. Ann Rheum Dis 2002;61:493–8.
- Ivorra J, Rosas J, Pascual E. Most calcium pyrophosphate crystals appear as non-birefringent. Ann Rheum Dis 1999;58:582–4.
- Von Essen R, Hölttä AMH, Pikkarainen R. Quality control of synovial fluid crystal identification. Ann Rheum Dis 1998;57:107–9.
- Robier C, Neubauer M, Quehenberger F, Rainer F. Coincidence of calcium pyrophosphate and monosodium urate crystals in the synovial fluid of patients with gout determined by the cytocentrifugation technique. Ann Rheum Dis 2011;70:1163–4.
- Moreno MJ, Clayburne G, Schumacher HR Jr. Processing of noninflammatory synovial fluids with hyaluronidase for cytospin preparations improves the accuracy of differential counts. Diagn Cytopathol 2000;22:256–8.
- Pascual E, Tovar J, Ruiz MT. The ordinary light microscope: an appropriate tool for provisional detection and identification of crystals in synovial fluid. Ann Rheum Dis 1989;48:983–5.
- Petrocelli A, Wong AL, Swezey RL. Identification of pathological synovial fluid crystals on gram stains. J Clin Rheumatol 1998;4:103–4.
- Selvi E, Manganelli S, Catenaccio M, De Stefano R, Frati E, Cucini S, . Diff Quik staining method for detection and identification of monosodium urate and calcium pyrophosphate crystals in synovial fluids. Ann Rheum Dis 2001;60:194–8.