Right MCA infarct with M1 MCA occlusion on CTA, hyperdense MCA sign on non-contrast CT, and features of infarction on CT perfusion imaging.

Critical hypoperfusion (core) = increased MTT, decreased CBF, decreased CBV].

Hypoperfusion (penumbra) = increased MTT, decreased CBF, normal CBV.

Incidental left frontal meningioma (presumed - not histologically proven).