History of subependymoma status post resection: surveillance. There are unchanged postoperative findings related to right transcallosal resection of a right lateral ventricular tumor with confluent T2 hyperintensity in the right frontal lobe and anterior corpus callosum, which may represent encephalomalacia and gliosis. There is no evidence of residual or recurrent tumor. The ventricles are unchanged in size and configuration. There are a few unchanged nonspecific punctate foci of highT2 signal in the cerebral white matter, but no evidence of acute intracranial hemorrhage or acute infarct. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are unchanged.
Stable postoperative findings without evidence of residual or recurrent subependymoma.