 There is an irregular rim enhancing lesion in the left occipital/posterior parietal lobe which measures 21 x 17 mm (series 13, image 17). Retrospective comparable measurements indicate this lesion has increased in size compared to the prior exam. Additionally there is increasing surrounding vasogenic edema predominantly anteriorly abutting the occipital horn of the left lateral ventricle. There is a new rim enhancing lesion posteriorly involving the epidural space and extending into the calvarium which measures 8 x 15 mm (series 13, image 14). A small rim enhancing lesion in the right cerebellar hemisphere measures 5 x 7 mm (series 13, image 25) without surrounding edema, unchanged. There are no additional new foci of abnormal enhancement. There is no midline shift. There is no restricted diffusion to suggest acute ischemia or infarct. Prominence of the ventricles and sulci is compatible with parenchymal volume loss. The basal cisterns remain patent. Normal flow-voids are demonstrated in the major intracranial vascular structures. The midline structures and craniocervical junction are within normal limits.
1.Increasing left occipital/posterior parietal lobe metastatic lesion. Adjacent focus of enhancement involves the epidural space and extends into the calvarium, which may represent infection although tumor is not excluded. 2.Stable right cerebellar metastatic lesion.