MCA infarct (M1 occlusion)

Case contributed by Dr Brendon Friesen

Presentation

Left hemiparesis

Patient Data

Age: 85
Gender: Female
CT

No hemorrhage.

Hyperdense right MCA sign.

CT

Occlusion right M1 MCA.

CT

Incidental left frontal convexity meningioma.

CT

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).

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Case information

rID: 30138
Case created: 21st Jul 2014
Last edited: 2nd Jul 2017
Inclusion in quiz mode: Included

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