History of intracranial tumor resection. Cerebral cysts. This is a limited examination performed for surgical planning. Sequelae of prior right parietal vertex craniotomy are seen. The right paracentral region near the vertex shows encephalomalacia from previous tumor resection. Contrast enhancement along the surface of the brain correlates with marked T2-hyperintensity and may reflect posttreatment change. The enhancement is mildly improved compared to the previous examination. Deep to the contrast enhancement, there is a subcortical, well-circumscribed T1-hypointense, T2-hyperintense area, which measures in the axial plane 4.6 cm x 2.2 cm. This probably represents cystic change with thin internal septations. It causes no significant mass-effect and has not changed compared to the previous examination. Ill-defined bilateral periventricular cerebral white-matter T2-hyperintensity is not significantly changed. Dural thickening underlying the craniotomy flap and along the fixed edge of the cerebral falx is redemonstrated. Patency of the adjacent superior sagittal sinus is difficult to ascertain. The right frontal developmental venous anomaly is unchanged.
1.Limited examination, performed for surgical planning.2.Subcortical cystic lesion in the right paracentral region causes no mass-effect and is not definitely changed compared to the previous examination from November 2015. 3.Additional findings as above compatible with prior tumor resection and treatment.