Reason: grade II oligodendroglioma w/ 1p19q deletion. History: brain tumor. The patient is status-post right-sided craniotomy for right temporal lobe surgery. Anterior aspect of the right temporal lobe has been surgically removed. The appearance of a surgical cavity and the adjacent structures is stable when compared to prior exam. T2 and flair MRI signal hyperintensity surrounding these surgical site are stable and suspect the least in part be related to gliosis. No convincing evidence for cerebral blood volume or permeability elevation is appreciated surrounding the original tumor bed.There is a mild degree of periventricular and subcortical punctate hyperintense white matter lesions present identified on the FLAIR and T2 images.A punctate focus of susceptibility is present in the left centrum semiovale. In isolation this is of uncertain clinical significance.No abnormal enhancing mass lesions are appreciated intracranially. No intracranial hemorrhage is identified. No edema is identified within the brain parenchyma.Normal vascular flow voids are present in the distal carotid and vertebral arteries, the basilar artery and the proximal anterior, middle and posterior cerebral arteries as well as the internal cerebral veins and superior sagittal sinus.The visualized portions of the paranasal sinuses are clear. The visualized portions of the mastoid air cells are clear. The visualized portions of the orbits are intact. The eyeball lenses are thin.
1.Status post right temporal lobe surgery for oligodendroglioma. There is no convincing evidence for recurrence.2.Periventricular and subcortical white matter changes of a mild degree are nonspecific. At this age they are most likely vascular related. 