History of primary CNS lymphoma. There are postoperative findings in the right frontal region, with unchanged right superior frontal gyrus encephalomalacia anteriorly. There is also persistent patchy white matter T2 hyperintensity in the periventricular regions bilaterally. There is a chronic left inferior cerebellar hemisphere subcentimeter infarct. There is no evidence of acute intracranial hemorrhage, mass, or acute infarct. There is no abnormal intraparenchymal enhancement. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are unchanged.
No evidence of intracranial tumor recurrence. 