Metastatic breast cancer to brain with recent increase in symptoms: Lightheadedness, blurry vision, nausea, and headache. There are postoperative findings related to right parietal lobe tumor resection with unchanged predominantly nonspecific enhancement along the margins and surrounding confluent T2 hyperintensity. There is interval decrease in size of the left cerebellar hemisphere enhancing tumor with susceptibility effect, which measures 11 x 15 mm in axial cross-section, previously 17 x 22 mm. There are small developmental venous anomalies in the left cerebellar hemispheres and right superior frontal gyrus. There are a few unchanged scattered foci of T2 hyperintensity in the cerebral white matter. 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 orbits are grossly unremarkable. There is an unchanged subcentimeter T1 hyperintense focus in the right parietal calvarium, which likely represents a hemangioma.
1. Postoperative findings related to right parietal lobe tumor resection with unchanged nonspecific enhancement along the margins, which may represent granulation tissue versus less likely recurrent tumor.2. Interval decrease in size of the left cerebellar hemisphere metastasis.