64-year-old female with history of metastatic lung adenocarcinoma. Evaluate for etiology of ongoing seizures. There is a tiny punctate focus of restricted diffusion within the right middle frontal gyrus which is of uncertain etiology or clinical significance. There are no large areas of restricted diffusion to suggest a territorial infarction. Postoperative changes of right craniotomy and tumor resection are redemonstrated. Rim enhancement along the superior aspect of the surgical cavity and adjacent dura appears similar to the prior study. Surrounding flair signal abnormalities suggestive of edema also appears unchanged. There is extensive periventricular T2/FLAIR hyperintensity which may be related to treatment/radiation and/or chronic small vessel ischemic disease. There is no midline shift. No additional areas of enhancement are appreciated. Normal flow voids are appreciated within the major intracranial vessels. The paranasal sinuses, mastoid air cells and orbits are unremarkable.
1. Stable postoperative changes of right parietal craniotomy and tumor resection with residual enhancement along the superior aspect of the surgical bed and adjacent dura.2. Tiny punctate focus of restricted diffusion within the right middle frontal gyrus which is of uncertain etiology or clinical significance. 3. Extensive periventricular T2/FLAIR hyperintensity which may be related to treatment/radiation and/or chronic small vessel ischemic disease.