 There are postoperative and posttreatment findings in the left temporal lobe for patient's known high grade glioma with hemosiderin staining and intrinsic T1 shortening peripherally with minimal, if any, superimposed peripheral enhancement, unchanged. There is increased extent of T2 signal abnormality in the left frontal lobe white matter, with persistent T2 signal abnormality in the left parietal and temporal lobe without change. The wispy enhancement in the left frontal lobe has resolved with significantly decreased mass effect and gyral thickening. There are scattered small punctate foci of susceptibility effect in the bilateral frontal lobes which were present on the prior exam. There is no acute infarct or separate/new focus of suspicious intracranial enhancement. There is a mucus retention cyst in the right maxillary sinus.
1.Resolved enhancement with significantly decreased mass effect and gyral thickening in the left frontal lobe anteriorly with increasing confluent T2 signal abnormality which is nonspecific. Findings likely represent combination of edema, nonenhancing tumor and/or posttreatment changes. Continued follow-up is suggested.2.Stable appearance of and posttreatment findings the left temporal lobe without evidence of locally recurrent tumor.