Evaluation of brain metastases from lung cancer: stable cough and DOE. There is a peripherally-enhancing lesion that measures 7 mm in width in the anterior right frontal lobe with surrounding confluent T2 hyperintensity. There is a background of mild scattered T2 hyperintensity without enhancement in the bilateral cerebral hemisphere white matter, which may represent chronic small vessel ischemic disease. There is no evidence of intracranial hemorrhage or acute infarct. 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 is a left lens implant.
A subcentimeter anterior right frontal lobe lesion with surrounding vasogenic edema is compatible with metastatic disease. 