Reason: 1.2 cm right lateral temporal lobe ring-enhancing lesion s/p SRS History: follow up ill-defined T2 hyperintensity involving the mesial left temporal w/o pathologic enhancement on last MRI. This exam is for treatment planning purposes and is limited. There is a ring-enhancing lesion in the lateral right temporal lobe measuring 8 x 9 mm in greatest axial dimensions (series 401, image 80) by 7 mm in the craniocaudal dimension (series 403, image 152), previously 12 x 12 x 10 mm. The lesion remains T1 hypointense internally, and the previously seen internal enhancing septations are less prominent. There is minimal associated local sulcal effacement, slightly improved. There is now a slightly increased rim of susceptibility artifact surrounding the lesion compatible with treatment effect.Previously described T2 signal abnormalities are not evaluated on this limited treatment planning examination.The ventricles and sulci are otherwise within normal limits for age. The cisterns remain patent. There is no midline shift. No extra-axial fluid collection is identified. The midline structures and craniocervical junction are within normal limits.
Limited examination for treatment planning demonstrating interval decrease in size of right lateral temporal lobe ring-enhancing lesion.