MCA dot sign

Case contributed by Dr Bruno Di Muzio

Presentation

Left hemiparesis.

Patient Data

Age: 62
Gender: Male
CT

CT Brain

There is a high-attenuation MCA branch viewed on right Sylvian fissure. A small area of hypoattenuation is seen on adjacent parenchyma (ischemia).

Case Discussion

The dot sign represents a thromboembolus within a segmental branch of the MCA located within the Sylvian fissure. It's an early marker of thromboembolic occlusion. 

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Case information

rID: 25414
Case created: 24th Oct 2013
Last edited: 10th Sep 2015
Inclusion in quiz mode: Included

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