title: Quiz case 8. Diagnosis: intraspinal hypertrophic callus formation in ankylosing spondylitis.
authors.affiliation: Universitätsklinik fur Radiodiagnostik, Osteologie/MR, Vienna, Austria.
authors.forename: S
authors.initials: S
authors.lastname: Grampp
authors.forename: C B
authors.initials: CB
authors.lastname: Henk
authors.forename: W
authors.initials: W
authors.lastname: Brodner
authors.forename: R
authors.initials: R
authors.lastname: Mallek
mesh_terms: D002146:Bony Callus / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010264:Paraplegia / Q000209:etiology; D011859:Radiography; D016103:Spinal Fractures / Q000150:complications; D013167:Spondylitis, Ankylosing / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging