Female, 64 years old, with lung cancer and brain metastases, on Erlotinib and Atezo. A focus of enhancement in the right cerebellum continues to measure approximately 3 mm in diameter, similar to the prior examination. The intensity of enhancement appears to have increased, but this could reflect technical differences due to imaging at 3T versus 1.5T.A lobular extra-axial enhancing mass along the left anterior clinoid process with extension along the planum sphenoidale and probable involvement of the left cavernous sinus and sella is unchanged as well. The pedunculated component of this lesion measures 9 x 8 mm, similar to the prior examination.No new intracranial enhancing lesions are seen. Redemonstrated is encephalomalacia of the left inferior frontal lobe with associated susceptibility artifact along the left frontal calvarium, findings which are unchanged and may be postoperative in nature. A focus of encephalomalacia along the left caudothalamic groove is unchanged as well and compatible with a chronic lacunar infarct. A few additional scattered foci of parenchymal T2 hyperintensity are nonspecific and unchanged.No evidence of significant parenchymal edema or mass effect is seen. No acute intracranial hemorrhage is detected. Ventricular size and morphology remain within normal limits.
1.No definite change in the size of a small right cerebellar metastatic focus. No new intracranial metastases are suspected.2.Stable left paraclinoid enhancing extra-axial mass which may represent a meningioma.