Lung cancer with brain metastases treated with WBRT. Punctate enhancing lesions at the grey-white matter junctions of the posterior left occipital lobe, inferior right parietal lobule, and right superior frontal sulcus are slightly more conspicuous and there is a new punctate T2 hyperintense focus adjacent to the right superior frontal gyrus lesion. There is unchanged patchy gyriform enhancement along the medial right occipital lobes and posterior left occipital lobe. There is unchanged diffuse cerebral white matter T2 hyperintensity, particular in a periventricular distribution. There is no evidence of acute infarct. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, and scalp soft tissues are grossly unremarkable. There is mild scattered paranasal sinus mucosal thickening.
Punctate metastatic lesions at the grey-white matter junctions of the posterior left occipital lobe, inferior right parietal lobule, and right superior frontal sulcus are slightly more conspicuous. Otherwise, the patchy gyriform enhancing lesions along the medial right occipital lobes and posterior left occipital lobe appear unchanged. 