Spinal cord anaplastic astrocytoma status post radiation and surgery. There are postoperative findings in the lower thoracic spine with a residual overlying posterior extradural fluid collection that measures up to approximately 4 cm. There is interval shrinkage of the tumor within lower spinal with development of linear T2 hypointensity and adjacent punctate foci of T2 hyperintensity in the treatment bed. The lack of intravenous contrast administration precludes assessment of the previously enhancing lesion at the T2-3 of the spinal cord, although no correlative findings is discernible on the non-contrast sequences. There is diffusely fatty vertebral bone marrow signal. The vertebral column alignment is within normal limits. The vertebral body and disc space heights are preserved. There is no significant spinal canal stenosis.
1. Interval shrinkage of the tumor within the lower spinal cord with superimposed treatment effects. However, the lack contrast administration limits the assessment.2. The lack of intravenous contrast administration precludes assessment of the previously enhancing lesion at the T2-3 of the spinal cord, although no correlative findings is discernible on the non-contrast sequences.