Grade 2 astrocytoma, follow-up evaluation Postoperative changes are again seen from previous left frontal approach biopsy, with T2 hyperintensity and blood products along the biopsy tract. Previously biopsied left thalamic lesion overall measures 2.1 x 3.7 cm cm in greatest axial dimensions, not appreciably changed since prior exam with motion degradation on the FLAIR sequence slightly limiting current examination. There is minimal mass effect upon the third ventricle, unchanged. There is slight persistent T2/FLAIR signal abnormality in the anteromedial temporal lobe which is also not significantly changed. FLAIR hyperintensity involving the left posterior frontal corona radiata and centrum semiovale is not significantly changed since 1/13/2016 but increased since 10/16/2015, and favored to represent post treatment effect. Intrinsic T1 shortening involving the left thalamus is again noted. No suspicious enhancement is evident.The ventricles and cortical sulci are mildly prominent, unchanged. There are a few scattered and confluent cerebral white matter T2 hyperintense foci are nonspecific and similar to prior. The major cerebral flow voids are intact. There is minimal mucosal thickening in the maxillary sinuses.
No findings to suggest progression of left thalamic and left anteromedial temporal lobe astrocytoma.