title: Quadriplegia caused by cervical hyperextension injury and intramedullary spinal cord tumour: a case report of autopsy.
abstract: A 68-year-old male had neck pain and weakness of the left upper extremity after a fall. MRI showed severe cervical canal stenosis and a high signal intensity of the spinal cord on T2-weighted images extending from the medulla oblongata to the C7 level. Neurological examination showed left hemiparesis, bilateral sensory disturbance and a neurogenic bladder. He underwent expansive laminoplasty 5 weeks later. After the operation his neurological deficit improved and 6 weeks later he left the hospital. However, his neurological conditions became worse (quadriparesis) and he was admitted as an emergency 3 weeks later. Although MRI showed decompression of the spinal cord, the area of high signal intensity on T2-weighted images had extended. Quadriparesis was progressive and he died of dyspnea. Autopsy showed the presence of the intramedullary spinal cord tumor (anaplastic astrocytoma; C1-Th4). We could not detect the intramedullary spinal cord tumour on MRI before surgery because of severe canal stenosis and the history of trauma. The high spinal intensity on T2-weighted images was thought to be oedema or myelomalacia. This case illustrates the difficulty of correctly interpreting MRI in patients with severe canal stenosis.
authors.affiliation: Department of Orthopaedic Surgery, School of Medicine, Keio University, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Fujimura
authors.forename: M
authors.initials: M
authors.lastname: Watanabe
authors.forename: M
authors.initials: M
authors.lastname: Kihara
authors.forename: K
authors.initials: K
authors.lastname: Akasaka
mesh_terms: D000368:Aged; D001254:Astrocytoma / Q000150:complications* / Q000175:diagnosis; D017809:Fatal Outcome; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D011782:Quadriplegia / Q000209:etiology*; D013119:Spinal Cord Injuries / Q000150:complications* / Q000175:diagnosis; D013120:Spinal Cord Neoplasms / Q000150:complications* / Q000175:diagnosis; D013130:Spinal Stenosis / Q000150:complications / Q000175:diagnosis