Chordoma on FDG PET/CT: A Primary Malignant Tumor Arising from the Primitive Notochord Remnants of the Axial Bones

摘要

We presented a case of chordoma in the cervical and thoracic regions of the spine with para-spinal muscle, pulmonary and pleural metastases, which showed FDG uptake in the spinal cord and the para-spinal regions from C6 to T7. This 17-year-old girl had unusual and uncontrollable walking pattern initially, followed by incontinence and then suddenly the inability to walk. MRI showed bone metastases from C6 to T4 vertebrae with paraspinal and epidural tumor extension; cord compression at C6-T2; and downward epidural tumor extension to the T8 level. Tumor biopsy of the right paraspinal intramuscular tumor showed chordoma with soft tissue involvement.