Breast cancer. There appears to be a small area of enhancement in the left middle frontal gyrus subcortical white matter. Otherwise, there is no evidence of intracranial hemorrhage or acute infarct. There are scattered foci of cerebral white matter T2 hyperintensity without associated enhancement. There is intrinsic T1 hyperintensity in the dentate nuclei and basal ganglia. 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. The skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable. There are bilateral lens implants.
An apparent small area of enhancement in the left middle frontal gyrus subcortical white matter may be vascular in nature or represent metastatic disease. Otherwise, no evidence of intracranial metastases elsewhere. Scattered foci of nonspecific white matter lesions may represent chronic small vessel ischemic disease.