Metastatic lung cancer to the brain with whole brain directed therapy. Follow-up lesions. There is redemonstration of two well demarcated lesions within the left anterior frontal lobe and left inferior cerebellar hemisphere measuring approximately 7 mm and 9 mm, respectively, (image 14, series 501 and image 6, series 501) which are unchanged in size. These lesions demonstrate more conspicuous high T2 signal and minimal high T1 signal without appreciable enhancement, which is similar to the prior study. The left cerebellar hemispheric lesion demonstrates a punctate faint focus of susceptibility. No new lesions are identified. The brain parenchyma is otherwise unremarkable. There is no acute infarct or hemorrhage. The ventricles and basal cisterns are unchanged in size. There is no midline shift or herniation.
1. No significant change in size or appearance of two lesions within the left anterior frontal lobe and left inferior cerebellar hemisphere, which presumably represent treated metastatic lesions. 2. No new lesions are identified. 