Metastatic lung cancer status post treatment. There is interval increase in size of the left inferior frontal gyrus and left lateral orbitofrontal gyrus peripherally enhancing lesions, measuring up to 13 mm and 18 mm, previously 10 and 16 mm, respectively. There is also interval increase in the degree of associated vasogenic edema. Furthermore, there appears to be a new 5 mm diameter lesion in the right posterior middle temporal gyrus. There is no evidence of acute infarct. There is a background of mild scattered cerebral white matter T2 hyperintensity, which may represent chronic small vessel ischemia. 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 orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
Interval increase in size of the left frontal lobe metastases and associated edema. New lesion in the right posterior temporal lobe.