Fig. 7
From: Magnetic resonance imaging of meningiomas: a pictorial review
a Axial T2-weighted sequence in a 75-year-old man being investigated for Bell palsy demonstrates a heterogeneous, extra axial mass in the midline of the olfactory groove, left more than right, in keeping with a meningioma (arrow) associated with mild oedema within the left frontal lobe. There are intrinsic areas of low signal intensity in keeping with calcification that do not enhance on post contrast sequences. b Coronal T2* sequence in the same patient as a demonstrates susceptibility effect (arrow) within the mass in keeping with the presence of calcification