title: Ochronotic spondyloarthropathy: spinal involvement resembling ankylosing spondylitis.
abstract: Ochronotic spondyloarthropathy is a rare metabolic disease with the musculoskeletal manifestations of alkaptonuria. Ochronotic arthropathy patients may have spinal abnormalities similar to ankylosing spondylitis (AS). The proof of sacroiliac involvement or bamboo spine appearance is not sufficient either for diagnosis of ankylosing spondilitis or exclusion of ochronosis. In this report, the case of a 54-year-old woman having ochronosis, with clinically more recognizable axial arthropathy resembling AS, is presented, and the history, clinical presentation, diagnostic techniques, and distinctive diagnosis are reviewed.
authors.affiliation: Department of Physical Medicine and Rehabilitation, School of Medicine, Gulhane Military Medical Academy, Gata, 06018 Ankara, Turkey. bbalaban@gata.edu.tr
authors.forename: Birol
authors.initials: B
authors.lastname: Balaban
authors.forename: Mehmet
authors.initials: M
authors.lastname: Taskaynatan
authors.forename: Evren
authors.initials: E
authors.lastname: Yasar
authors.forename: Kenan
authors.initials: K
authors.lastname: Tan
authors.forename: Tunc
authors.initials: T
authors.lastname: Kalyon
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000002:abnormalities / Q000000981:diagnostic imaging*; D008875:Middle Aged; D009794:Ochronosis / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D011859:Radiography; D011877:Radionuclide Imaging; D025242:Spondylarthropathies / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D013167:Spondylitis, Ankylosing / Q000175:diagnosis*; D021801:Zygapophyseal Joint / Q000503:physiopathology