Metastatic breast cancer needs evaluation prior to starting trial. There are two enhancing lesions in the right cerebellar hemisphere that measure up to 7 mm and an enhancing lesions in the anterior left frontal lobe that measures up to 8 mm. There is negligible associated surrounding edema. 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 orbits, skull, and scalp soft tissues are grossly unremarkable. There is mild mucosal thickening in the left maxillary sinus.
Subcentimeter supratentorial and infratentorial lesions likely represent metastases.