Male, 38 years old, with history of grade 2 oligodendroglioma status post radiation and chemotherapy. A region of T2 hypoerintensity involving the left frontal white matter and cortex with some cortical thickening is again seen. As on prior exams, the lesion shows central cystic degeneration. There has been no significant interval change in size or morphology. No pathologic enhancement is seen. Separate from the above described lesion, ill defined T2 hyperintensity in the periventricular white matter is unchanged and likely treatment related. No new areas of signal abnormality are seen. No significant mass effect or edema is detected. The ventricles maintain normal size and configuration. Thick enhancement along the right orbital roof is unchanged.
1.No change in the size or morphology of the treated left frontal lesion.2.Stable findings along the right orbital roof likely representing fibrous dysplasia.