title: A very rare cause of neck pain: primary Ewing sarcoma of the axis.
abstract: We report the case of a 7-year-old boy who presented with a 1-month history of neck pain, left-sided torticollis, and no neurological deficit. Computed tomography and magnetic resonance imaging revealed an expansile lesion in the axis, with epidural and prevertebral soft tissue components. Histopathologic examination of the biopsy specimen revealed primary vertebral Ewing sarcoma. This is the first case of primary vertebral Ewing sarcoma that has presented with torticollis. It is essential for physicians to be familiar with this condition and the associated imaging findings because early diagnosis of such cases is the key to better prognosis.
authors.affiliation: From the *Department of Radiology, University of Ondokuz Mayis, Faculty of Medicine, Samsun; and †Department of Neurosurgery, University of Marmara, Faculty of Medicine, Istanbul, Turkey.
authors.forename: Ramazan
authors.initials: R
authors.lastname: Aydin
authors.forename: Meltem Ceyhan
authors.initials: MC
authors.lastname: Bilgici
authors.forename: Adnan
authors.initials: A
authors.lastname: Dagcinar
mesh_terms: D001368:Axis, Cervical Vertebra / Q000000981:diagnostic imaging / Q000473:pathology; D001706:Biopsy; D002648:Child; D003937:Diagnosis, Differential; D005334:Fever / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D064847:Multimodal Imaging; D019547:Neck Pain / Q000209:etiology*; D012512:Sarcoma, Ewing / Q000150:complications* / Q000175:diagnosis / Q000473:pathology / Q000532:radiotherapy; D013117:Spinal Cord Compression / Q000209:etiology; D013125:Spinal Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000473:pathology / Q000532:radiotherapy; D014057:Tomography, X-Ray Computed; D014103:Torticollis / Q000209:etiology*