title: Apatite deposition in polymyositis subluxing arthropathy.
abstract: We describe a 47-year-old woman who developed chronic subluxing arthropathy associated with polymyositis (PM) and positive anti-Jo1 antibodies. After a followup of 3 years, PM did not recur and polyarthritis dominated her clinical picture, leading to deformities and periarticular calcifications in her hands, shoulders, and feet. Patients with myositis, anti-Jo1 antibodies, and periarticular calcifications are at risk of developing deforming arthritis unresponsive to conventional therapy.
authors.affiliation: Seccion Reumatologia, I.MU.RE.P. Echeverria, Argentina.
authors.forename: G
authors.initials: G
authors.lastname: Citera
authors.forename: M A
authors.initials: MA
authors.lastname: Lazaro
authors.forename: J A
authors.initials: JA
authors.lastname: Maldonado Cocco
authors.forename: M A
authors.initials: MA
authors.lastname: de Benyacar
authors.forename: E J
authors.initials: EJ
authors.lastname: Scheines
authors.forename: M
authors.initials: M
authors.lastname: Ciaffi
mesh_terms: D000328:Adult; D000974:Antibodies, Antinuclear / Q000097:blood; D001031:Apatites / Q000032:analysis / Q000378:metabolism*; D002114:Calcinosis / Q000276:immunology / Q000378:metabolism* / Q000473:pathology; D005260:Female; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging / Q000378:metabolism* / Q000473:pathology; D010024:Osteoporosis / Q000000981:diagnostic imaging / Q000378:metabolism / Q000473:pathology; D017285:Polymyositis / Q000276:immunology / Q000378:metabolism* / Q000473:pathology; D011859:Radiography; D014961:X-Ray Diffraction
chemical_list: D000974:Antibodies, Antinuclear; D001031:Apatites