title: Pseudogout of the acromioclavicular joint: report of two cases and review of the literature.
abstract: Although calcium pyrophosphate dehydrate (CPPD) deposition disease, including pseudogout, is a relatively common disease affecting the major joints, especially the knee, pseudogout in the acromioclavicular (AC) joint is very uncommon. We describe two cases of acute pseudogout attacks of the AC joint in elderly patients. Radiological findings showed chondrocalcinosis in the AC joints. Microscopically, aspirated articular synovial fluid demonstrated CPPD crystals. Conservative therapy with non-steroidal anti-inflammatory drugs completely resolved all symptoms within 1 week.
authors.affiliation: Department of Orthopaedic Surgery, Fukushima Prefectural Minami-Aizu Hospital, 14-1 Kazashita, Nagata, Minami-Aizu-machi, Fukushima, 967-0006, Japan. paco@fmu.ac.jp
authors.forename: Michiyuki
authors.initials: M
authors.lastname: Hakozaki
authors.forename: Shinichi
authors.initials: S
authors.lastname: Kikuchi
authors.forename: Koji
authors.initials: K
authors.lastname: Otani
authors.forename: Takahiro
authors.initials: T
authors.lastname: Tajino
authors.forename: Shinichi
authors.initials: S
authors.lastname: Konno
mesh_terms: D000173:Acromioclavicular Joint / Q000000981:diagnostic imaging / Q000473:pathology*; D000368:Aged; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage; D002131:Calcium Pyrophosphate / Q000378:metabolism; D002805:Chondrocalcinosis / Q000175:diagnosis* / Q000188:drug therapy / Q000378:metabolism; D003907:Dexamethasone / Q000008:administration & dosage; D004008:Diclofenac / Q000008:administration & dosage; D004359:Drug Therapy, Combination; D005938:Glucocorticoids / Q000008:administration & dosage; D006801:Humans; D007213:Indomethacin / Q000008:administration & dosage / Q000031:analogs & derivatives; D007592:Joint Diseases / Q000175:diagnosis* / Q000188:drug therapy / Q000378:metabolism; D008012:Lidocaine / Q000008:administration & dosage; D008297:Male; D008875:Middle Aged; D013582:Synovial Fluid / Q000378:metabolism; D014057:Tomography, X-Ray Computed
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D005938:Glucocorticoids; D004008:Diclofenac; D003907:Dexamethasone; D008012:Lidocaine; C060022:indomethacin farnesil; D002131:Calcium Pyrophosphate; D007213:Indomethacin