Male, 56 years old, with history of anaplastic astrocytoma status post biopsy, RT/TMZ and TMZ. Sequelae of the previously biopsied, treated tumor in the left thalamus are unchanged including intrinsic T1 hyperintensity and mild T2 hyperintensity. No enhancement is seen in this location.A faintly rim enhancing, centrally necrotic lesion within the right posterior paramedian frontal lobe is no larger than on the prior examination and perhaps 2 or 3 mm smaller. Surrounding T2 hyperintensity has also mildly decreased. Faint areas of patchy and ribbonlike enhancement within the left temporal lobe are also stable to slightly reduced in conspicuity and size.No new intracranial lesions are appreciated. Ill-defined T2 hyperintensity within the left periventricular white matter has not significantly changed from prior. No evidence of generalized mass effect is seen. The ventricles are stable in size and morphology.
Areas of multifocal tumor are redemonstrated with no evidence of disease progression and perhaps some mild improvement from the prior exam.