title: Osteoid osteoma of the dens axis.
abstract: An osteoid osteoma of the dens axis was diagnosed by computed tomography and bone scintigraphy in a 14-year-old girl with a 1.5-year history of pain. No case of an osteoid osteoma of the dens axis has been published in the literature yet. Regarding its clinical and radiological appearance, this osteoid osteoma was essentially similar to osteoid osteomas in other locations, i.e., it had an osteolytic nidus surrounded by sclerosis, associated with nocturnal pain and a positive aspirin test.
authors.affiliation: PMU Salzburg, Orthopedic University Clinic, Müllner Hauptstrasse 48, 5020, Salzburg, Austria. drdanielneumann@a1.net
authors.forename: Daniel
authors.initials: D
authors.lastname: Neumann
authors.forename: Ulrich
authors.initials: U
authors.lastname: Dorn
mesh_terms: D000293:Adolescent; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage; D001268:Atlanto-Axial Joint / Q000000981:diagnostic imaging / Q000473:pathology*; D000068579:Celecoxib; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D019547:Neck Pain / Q000188:drug therapy / Q000209:etiology*; D009809:Odontoid Process / Q000000981:diagnostic imaging / Q000473:pathology*; D010017:Osteoma, Osteoid / Q000000981:diagnostic imaging / Q000473:pathology*; D011720:Pyrazoles / Q000008:administration & dosage; D013125:Spinal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D013449:Sulfonamides / Q000008:administration & dosage; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D011720:Pyrazoles; D013449:Sulfonamides; D000068579:Celecoxib