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Old 01-22-2011
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Neuro Circle of willis ?

In first aid 2010 page 401 neurology ( circle of willis )

they write

posterior communicating artery common area of aneurysm


anterior communicating artery most common site of circle of
willis aneurysm

is this mean the commonest area of aneurysm is anterior communicating artery.??

and what the origin of both ( from where they arise) ???
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Old 01-22-2011
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from kaplan class :

commonest is from anterior communicating artery. make sure you know where this is!! and relations to it.


Second most is posterior communicating artery
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Old 01-22-2011
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Quote:
Originally Posted by drbluedevil View Post
from kaplan class :
commonest is from anterior communicating artery. make sure you know where this is!! and relations to it.Second most is posterior communicating artery
RR Path (p.597) agrees - within the Circle of Willis. Figure 28-19 in Robbin's Pathology zooms out a little:

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Old 01-22-2011
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Most frequent site of occurrence of cerebral aneurysms is in the anterior communicating artery, which is part of the circle of Willis. The next most common sites of cerebral aneurysm occurrence are in the internal carotid artery at the level of the posterior communicating artery, and at the internal carotid artery terminus.
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Old 01-22-2011
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Default some history points

In the h/o
1- Anterior communicating causes Visual field defects
2- Posterior communicating causes CN 3 palsy
3- posterior cerebral causes cortical blidness with macula sparing(visual acuity perseved)
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Old 02-23-2012
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Quote:
Originally Posted by Mondoshawan View Post
RR Path (p.597) agrees - within the Circle of Willis. Figure 28-19 in Robbin's Pathology zooms out a little:

x
thank you for a blare explanation for this . and me : i have a video for physical examination :

http://1.dastyari.net/showthread.php...sted=1#post365
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Old 02-23-2012
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Default posterior communicating artery aneurysm. physical examination

<embed height="400" width="600" flashvars="config=http://www.aparat.com//video/video/config/videohash/97b883046a02a212612e459b070edcc5136477" allowfullscreen="true" quality="high" name="aparattv" id="aparattv" style="" src="http://www.aparat.com/public/public/player/aparattv" type="application/x-shockwave-flash">
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Old 02-23-2012
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Anterior because thats where the tunica media is weakest.
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