40-year-old male with a history of a meningioma. Evaluate for interval change to the meningioma. Redemonstrated within the right frontal convexity is a dural based extra-axial homogeneously enhancing mass measuring 10 x 11 mm which is not significantly changed compared to the prior exam from 4/16/2016 where it measured 9 x 11 mm. The differences in measurement are likely secondary to differences in image acquisition technique. For instance, on the prior MRI brain exam, only the central component of the mass was visualized on coronal images, and therefore comparison of CC measurements are inaccurate. There is a small lobulated component which extends into the overlying diploic space. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact.
Overall stable right frontal convexity dural based enhancing extra-axial mass, most likely representing a meningioma which minimally extends into the overlying calvarium perhaps along an area of developmentally irregular inner table contour.