Female, 65 years old, with metastatic lung cancer and brain metastases status post radiation. Again seen is a homogeneously enhancing lobular extra-axial mass along the undersurface of the right lateral tentorium. The most accurate measurements are obtained on sagittal images where the lesion measures 20 x 16 mm, unchanged from the prior study. The lesion abuts the right sigmoid sinus without evidence of significant narrowing or occlusion.Also stable is a tubular 8 x 6 mm enhancing structure along the anterior right temporal lobe. No additional enhancing lesions are seen. No new areas of cortical signal abnormality are detected. Minimal patchy periventricular T2 hyperintensity is unchanged and nonspecific. No restricted diffusion is seen. No significant parenchymal edema is detected. The ventricles are stable and normal in size.
1.Stable extra-axial mass arising from the undersurface of the right lateral tentorium.2.Stable tubular enhancement along the right anterior temporal lobe which may represent an incidental vascular lesion. Dedicated vascular imaging can be considered if clinically warranted.3.No new or concerning intracranial lesions are seen.