68-year-old male with history of GBM resection, presenting with stroke symptoms There is no restricted diffusion to suggest the presence of acute ischemia. Redemonstrated are postoperative changes from left parietal tumor resection including dural thickening. This study is limited by lack of contrast, however there is increased associated T2 signal which is especially notable extending anteriorly along both frontal and temporal lobes, without associated mass effect. Previously demonstrated hemorrhage within the immediate postoperative cavity have resolved. There remains susceptibility etching the operative cavity. Scattered foci of chronic small vessel ischemic disease is stable. The ventricles are unchanged in size or shape. There are no extra-axial fluid collections. Minimal mucosal thickening is present within the left maxillary sinus. The remaining paranasal sinuses and the mastoid air cells are clear. Expected vascular flow voids are demonstrated.
1.There is no restricted diffusion to suggest the presence of acute ischemia.2.This study is limited by lack of contrast, however there is increased associated T2 signal surrounding the left parietal postoperative cavity which is especially notable extending anteriorly along both frontal and temporal lobes, without associated mass effect. This may be related to treatment effect, however neoplastic extension cannot be excluded.