Fig. 14
From: Magnetic resonance imaging of meningiomas: a pictorial review
Post-contrast axial T1-weighted sequence in a 79-year-old man demonstrates a large, homogeneously enhancing extra axial mass within the right occipital lobe that extends into and expands the posterior aspect of the superior sagittal sinus (arrow) and crosses the midline into the paramedian left occipital lobe. Posteriorly, the mass extends into the adjacent skull with erosion of the outer table. Histology at surgery was a meningioma (grade III)