FIG 2. Images of a patient (patient 9 in the Table) with a benign meningioma (WHO grade I).

A, Axial T1-weighted image of right temporal meningioma with "pseudocapsule" sign.

B, Axial fast spin-echo T2-weighted image shows that the mass is slightly hyperintense to cortex.

C, Fast fluid-attenuated inversion recovery image shows mass to be hyperintense to cortex.

D, Contrast-enhanced T1-weighted image shows intense, homogeneous enhancement.

E, Mass is predominantly isointense/slightly hyperintense on the diffusion-weighted image.

F, On the ADC map, the mass appears isointense/hyperintense to cortex, with a diffusion constant value (0.93 x 10^-5 cm²/s) that is slightly elevated compared with normal brain parenchyma.