Presentation
Left hemiparesis
Patient Data
No hemorrhage.
Hyperdense right MCA sign.
Occlusion right M1 MCA.
Incidental left frontal convexity meningioma.
CT perfusion.
Right basal ganglia / external capsule critical hypoperfusion (core) [increased MTT, decreased CBF, decreased CBV].
Larger region of right MCA territory hypoperfusion (penumbra) [increased MTT, decreased CBF, normal CBV].
Case Discussion
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).