Memory impairment, history of lung cancer, evaluate for metastasis. There is a 9 x 5 mm focus of extra-axial enhancement along the right frontal convexity abutting the right middle frontal gyrus. There is thickening of the adjacent calvarium and susceptibility which may be related to osseous protuberance versus dural based calcification. No significant intracranial mass effect. Otherwise, no abnormal parenchymal or meningeal enhancement. The ventricles are within normal limits in size and configuration for age with mild global parenchymal loss. No restricted diffusion to suggest acute ischemia. No intracranial hemorrhage. Major flow-voids are preserved.Several foci of T2/FLAIR hyperintensity are seen in the bilateral subcortical and periventricular white matter, which are nonspecific, but compatible with mild chronic small vessel ischemic changes. Brain parenchyma is otherwise unremarkable for age.Sella and orbits are grossly within normal limits. Paranasal sinuses and mastoid cells are clear. Bone marrow signal and extracranial soft tissues are within normal limits.
1. No evidence of intracranial metastatic disease.2. 9x5 mm focus of extra-axial enhancement along the right frontal convexity may represent a tiny meningioma. There is adjacent osseous protuberance versus dural calcification which could be better assessed with CT. Suggest comparison with prior MRI if available. No significant mass effect associated with this lesion.3. There is mild global parenchymal loss which appears appropriate for age.