6x1.0 cm (axial) acute infarct in right corona radiata immediately adjacent to lateral ventricle body. There is associated bright FLAIR signal.
Within the limits of non-contrast study, no extra-axial tumour recurrence is seen around the right middle cranial fossa. There are gliosis and atrophy in the adjacent right frontal and temporal lobes. The extent of underlying white matter bright flair/T2 signal has however increased markedly, now extending posteriorly to the trigonal area (where previously it was fairly localized to around the anterior horn region). Radiotherapy can potentially produce this appearance.