40 year-old female with history of grade 2 meningioma status post resection x 2 and radiation therapy, surveillance imaging. Redemonstrated are postoperative findings related to right frontal craniotomy and partial resection of the right frontal lobe, such that the resection cavity communicates with the right lateral ventricle. There is diffuse thickening and enhancement of the dural deep to the craniotomy, which is unchanged. There are also postoperative findings related to left frontotemporal craniotomy. There is an enlarging focus of T2 hyperintensity along the medial aspect of the surgical cavity measuring up to 8 mm in maximal dimension (previously 4 mm) which is nonenhancing (best seen on image 22 series 601). The remaining previously demonstrated confluent T2 hyperintensity surrounding the resection cavity, as well as areas of cystic encephalomalacia in the remaining portions of the right frontal lobe, are unchanged. There is no evidence of acute intracranial hemorrhage or acute infarct. The skull and extracranial soft tissues are unchanged.
There is an enlarging focus of T2 hyperintensity along the medial aspect of the surgical cavity measuring up to 8 mm in maximal dimension (previously 4 mm) which is nonenhancing and of uncertain clinical significance. The remaining extensive post-treatment findings are stable in appearance.