RT Journal A1 Doll N, Jackson FN T1 ACute pseudogout simulating septic arthritis JF JAMA JO JAMA YR 1979 FD October 19 VO 242 IS 16 SP 1768 OP 1768 DO 10.1001/jama.1979.03300160048027 UL http://dx.doi.org/10.1001/jama.1979.03300160048027 AB SINCE the original descriptions of pseudogout by McCarty et al1 and Zitnan and Sitaj,2 several patterns of arthritis have been described: (1) intermittent attacks of acute inflammatory arthritis that subside completely between attacks; (2) continuous acute attacks that usually involve more than one joint and may involve symmetrical joints; (3) chronic arthritis with superimposed acute attacks; and (4) chronic arthritis without acute attacks.3 Rarely, pseudogout may be seen with clinical and laboratory findings suggestive of acute septic arthritis. We report here a case of acute pseudogout simulating septic arthritis in an elderly woman.Report of a Case  An 82-year-old woman was admitted to the medical service with a diagnosis of septic arthritis of her left knee. She had a history of osteoarthritis and had fallen two days prior to admission without injury to her knee. Pertinent physical findings included a temperature of 38.7°C and a