Non small cell lung cancer, evaluate for metastasis. There is no evidence of intracranial hemorrhage, mass, or acute infarct. There are scattered foci of high T2 signal in the cerebral white matter, which are nonspecific, but may represent chronic small vessel ischemic disease. There is a punctate defect in the right cerebral peduncle that is compatible with a chronic infarct. There is no abnormal intracranial enhancement. There is diffuse mild cerebral volume loss as well as more focal areas of subarachnoid space dilatation. There are prominent perivascular spaces in the basal ganglia. 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.
No evidence of intracranial metastases. 