title: A case of probable hydroxyapatite deposition disease (HADD) of the hip.
abstract: We describe a patient with acute calcific periarthritis in an unusual site, the ilio-femoral ligament. The clinical findings in this patient resembled those of septic arthritis. T2*-weighted images with gradient field echo clearly showed foci of low signal intensity in this region, corresponding to the calcification shown on plain radiographs, and increased signal intensity around the foci, representing edema. These signal intensities were diagnostic of the disease.
authors.affiliation: Department of Radiology, Matsue Seikyo Hospital, Japan. h-kuroda@sx.miracle.ne.jp
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kuroda
authors.forename: Yumiko
authors.initials: Y
authors.lastname: Wada
authors.forename: Kaoru
authors.initials: K
authors.lastname: Nishiguchi
authors.forename: Takumi
authors.initials: T
authors.lastname: Ninomiya
authors.forename: Akihiro
authors.initials: A
authors.lastname: Takahama
authors.forename: Shinya
authors.initials: S
authors.lastname: Sato
authors.forename: Hajime
authors.initials: H
authors.lastname: Kitagaki
mesh_terms: D000208:Acute Disease; D000328:Adult; D002114:Calcinosis / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006621:Hip Joint / Q000473:pathology*; D006801:Humans; D006882:Hydroxyapatites / Q000378:metabolism*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D052256:Tendinopathy / Q000175:diagnosis* / Q000473:pathology
chemical_list: D006882:Hydroxyapatites