Secondary malignant neoplasm of brain [C79.31], Reason for Study: ^Reason: history of metastatic lung cancer s/p craniotomy and post-op SRS History: surveillance MRI Redemonstration of the left temporal lobe anterior aspect post resection gliotic changes without evidence of abnormal enhancement.There is no evidence of acute ischemic or hemorrhagic lesion.There no abnormal enhancement.Scattered high signal intensity lesions on periventricular white matter are non specific but likely represent small vessel ischemic disease, no change since prior scan.Right basal ganglia shows localized high signal intensity adjacent to prominent CSF space is also non specific but may represent a focal lacunar infarction, unchanged. The ventricles, sulci and cisterns are symmetric and unremarkable. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, restricted diffusion/acute ischemia, or abnormal contrast enhancement. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
No change of left temporal resection site with gliotic changes since prior scan.No evidence of abnormal enhancement or signal intensity indicate recurrence or residual mass.No evidence of acute ischemic or hemorrhagic lesion. No abnormal enhancement.