 There are post treatment findings related to prior left parietal craniotomy for resection of a subjacent lesion as well as radiation related changes. There is unchanged confluent T2 hyperintensity surrounding the resection cavity and adjacent to the left lateral ventricular body as well as within the bilateral periventricular white matter and corpus callosum where there is mild mass effect upon the lateral ventricle. There are additional unchanged nonspecific patchy foci of T2 hypertensity throughout the supratentorial white matter that may represent treatment related changes and/or chronic small vessel ischemic disease. There is no abnormal enhancement. The perfusion images are nondiagnostic due to poor bolus additional contrast dose.There is no evidence of acute infarct. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact.
Posttreatment findings without evidence for disease progression.