Female, 68 years old, with history of non-small cell lung cancer with brain metastases, restaging examination. Faint punctate enhancing cortical foci are seen along the superior surface of the left superior temporal gyrus (see image 113 series 1202), and along the superior lateral right occipital lobe (see image 112 series 1202). These lesions were both larger and better visualized on the prior examination.No additional pathologic parenchymal enhancement is seen. However, there is a 12 mm homogeneously enhancing mass at the left cranial vertex which abuts the adjacent dura and the superior sagittal sinus with perhaps minimal ingrowth into the overlying calvarium. This lesion mildly displaces the underlying brain parenchyma but causes no edema. When compared to the prior examination, there has been no significant interval change.Scattered nonspecific foci of parenchymal T2 hyperintensity are unchanged. No evidence of significant parenchymal edema or mass effect is observed. Diffusion-weighted images are within normal limits. No intracranial hemorrhage or any abnormal extra-axial fluid collections are detected. Ventricular size and morphology are within normal limits.
1.Two small foci of enhancement are vaguely perceived, one along the left superior temporal gyrus, and one in the superior lateral right occipital lobe. Both these lesions are smaller and more difficult to visualize than on the prior examination. This could reflect the effect of treatment and/or differences in technique.2.A homogeneously enhancing extra-axial mass at the left paramedian vertex is seen. The features of this lesion are most consistent with a meningioma. Metastatic disease would be much less likely, though continued attention on follow-up examinations is advised.3.No definite additional enhancing lesions are seen.