62-year-old female with a history of metastatic lung adenocarcinoma status post chemoradiation (8/11/2016- completed whole brain radiation, 8/25/2016- started on Erlotinib 100 mg). There is a rim-enhancing mass in the anterior right superior frontal gyrus with surrounding vasogenic edema. The lesion measures up to 20 mm, previously also 20 mm. There is also enhancement superficially along the right postcentral gyrus, which measures up to 12 mm in length, which appears similar is size. There are additional subcentimeter enhancing lesions in the left cerebellar hemisphere, which appear slightly smaller. There is no evidence of intracranial hemorrhage or acute infarct. There is mild scattered cerebral white matter and brainstem T2 hyperintensity. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. There is mild mucosal thickening in the paranasal sinuses. The major cerebral flow voids are intact. The orbits, skull, and scalp soft tissues are grossly unremarkable.
1. No significant change in size of multiple intracranial metastases.2. Mild scattered cerebral white matter and brainstem T2 hyperintensity is nonspecific, but may represent chronic small vessel ischemia.