Refractory epilepsy, h/o subdural s/p resection surgery, gait-coordination abnormalities. Many of the sequences are degraded by patient motion. There are postoperative findings related to right inferior frontal gyrus topectomywith persistent areas of high T2 signal medial to the surgical defect, with a somewhat linear configuration. There is also a small amount of susceptibility effect along the surgical margin, which may represent chronic blood products. There are linear areas of susceptibility effect along the sulci of the bilateral parietal lobes, which may also represent chronic blood products. However, there is no residual subdural hemorrhage, and there is no evidence of acute intracranial hemorrhage, mass, or acute infarct. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are unchanged in size and configuration. There is diffuse cerebellar volume loss. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable. There are left mastoid effusions.
1. Diffuse cerebellar volume loss may be related to chronic anti-epileptic therapy.2. Postoperative findings related to right inferior frontal gyrus topectomy with persistent areas of nonspecific signal abnormality medial to the surgical defect, which may represent gliosis.3. No evidence of residual subdural hemorrhage.