visual aid: dense MCA sign

6 Mar

was reminded of the useful dense MCA sign by this article in December’s JEM (good pictures, though the article was written by radiologists with variably subtle CT findings):



increased attenuation of [a segment of] the middle cerebral artery 

can give an MCA dot sign when the vessel is seen end-on.

usually seen in 90 min of the event

for more visual aids, check out, which has a video link + several cases you can scroll through like a real CT scan.

quick imaging overview with pictures over here as well.


References: JEM article; + picture; radiology assistant + picture



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