 Compared to outside MRI dated 12/23/2014, interval postsurgical changes of partial corpectomy involving the right aspect of the T11 vertebral body, T10-T11 laminectomies, and posterior spinal fusion hardware placement from T9 to L1 are seen. Paraspinous rods, pedicle screws, and T11 cage produce susceptibility artifact which limit evaluation. Ventral and dorsal thecal sac however appear preserved without significant stenosis demonstrated. Left T10 screw is noted to be medially positioned and appears to encroach into the lateral aspect of the spinal canal. Distortion from hardware limits precise hardware evaluation.The thoracic spine is in normal alignment. The vertebral body heights in the thoracic spine are maintained. There is abnormal T1 and T2/STIR hyperintense signal involving the T11 vertebral body on the left extending into the posterior elements. Benign-appearing T1 hyperintense marrow signal is seen along the anterior endplates from T1 to T4 as well as T1 hyperintensity in the lower thoracic spine related to radiation. No new suspicious lesions appreciated. Mild degenerative changes are seen including small disc bulges at T6-T7, T7-T8, and T8-T9 with partial effacement of the ventral thecal sac but no significant stenosis. No obvious cord signal abnormality is appreciated although susceptibility artifact from hardware limits evaluation of cord signal abnormality at the operated levels. Paraspinous soft tissues demonstrate postoperative changes but are otherwise unremarkable.
1. Compared to outside MRI from 12/23/2014, interval postsurgical changes of partial right T11 corpectomy with cage placement, T10-T11 laminectomies, and thoracolumbar fusion from T9 to L1 are noted. Susceptibility artifact slightly limits evaluation however no high-grade spinal canal stenosis is appreciated.2. Left T10 screw appears medially positioned and encroaches into the spinal canal. No high-grade stenosis at this level. Given distortion related to hardware, CT may be considered to better assess hardware positioning if clinically indicated.3. Abnormal T1 and T2/STIR hyperintensity involving the T11 vertebral body extending into the posterior elements on the left. Signal features are consistent with tumor which has been treated with radiation.