Reason: Grade II oligodendroglioma s/p RT/PCV. Now off all Tx. Again seen are postsurgical changes in the left frontal lobe with the resection cavity appearing similar in size compared to the prior study. Compared to most recent study, there is no significant change in extent of T2/FLAIR hyperintensity surrounding the resection cavity, involving the left frontal corona radiata and extending into the right frontal corona radiata across the body of the corpus callosum. As noted before there is slight increase in extent of FLAIR signal abnormality when compared to more remote studies which is nonspecific and may be related to posttreatment change.Additional scattered nonspecific foci of T2/FLAIR hyperintensity in the bilateral cerebral white matter are also not significantly changed. No new mass effect, midline shift, or herniation. Ventricles are normal in size aside from the ex vacuo dilatation involving the left lateral ventricle. There is no suspicious enhancement. Unchanged nodular enhancement projecting into the cavity from the midline falx and linear enhancement along the posterior inferior cavity margin. Susceptibility artifact surrounding the cavity margins is compatible with chronic blood products.
No evidence of tumor progression.