Uncal [Transtentorial] Herniation - USMLE Forums
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Old 07-30-2009
Posts: 5
Threads: 3
Thanked 43 Times in 3 Posts
Neuro Uncal [Transtentorial] Herniation

What? Ipsilateral dilated pupils
Why? CN III compression

What? Contralateral homonymous hemianopsia
Why? Posterior cerebral artery compression

What? Ipsilateral paresis
Why? Compression of contralateral crus cerebri [Kernohan's notch], this is a false localizing sign

What? Duret hemorrhage of pons and midbrain
Why? paramedian artery rupture because of caudal displacement of the brain stem
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The above post was thanked by:
Andrei70 (06-06-2013), docnok (10-06-2011), excellence (09-13-2014), hassanahk (06-07-2011), kdm0101 (07-18-2011), mle_vrp (11-20-2011), Noa2013 (05-11-2015), Rookie (07-06-2012), thensg300 (02-25-2016), wahaha007 (01-10-2010)



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Homonymous Hemianopsia on RightHealth This thread Refback 08-02-2009 03:12 PM

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