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Old 08-25-2011
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Neuro Right Arm and Leg Stroke, where is the lesion!

A 68 year old male with history of hypertension and hypercholesterolemia presents to the emergency room with acute onset weakness of the right arm and leg. His work-up is reveals an acute stroke in what region of the brain?
A. Corpus callosum
B. Posterior limb of internal capsule
C. Globus pallidus external
D. Anterior limb of internal capsule
E. Globus pallidus internal
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Old 08-25-2011
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anterior limb of internal capsule???
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Old 08-25-2011
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b) posterior limb - corticospinal fibers
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Old 08-25-2011
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post .limb of int.capsule

Last edited by Amenah; 08-25-2011 at 05:37 PM. Reason: i forgot
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Old 08-26-2011
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thats a tough one!
is it ant limb int capsule? total guess..
i think ur asking about charcot bouchard or lacunar . which are due to HTN..
ok so i change my ans,, its globus pallidus internal one.. lol
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Old 08-26-2011
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B. Posterior limb
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Old 08-26-2011
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posterior limb
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Old 08-26-2011
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I think its B coz hypertension and hypercholesterolemia can provoke thromboembolic phenomenon also and can involve middle cerebral artery and as we know that posterior limb of internal capsule is supplied by middle cerebral artery so i think it involved in this ... coz patient presents with weakness of limbs so as we know posterior limb of internal capsule contains motor fibers ....
anterior capsule supplied by anterior cerebral artery and anterior limb contains sensory fibers....
other condition associated with hypertension can b hemiballismus due to hemorrhage in contralateral subthalamic nuclie
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Old 08-26-2011
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anterior vs posterior limb of internal capsule:

Right Arm and Leg Stroke, where is the lesion!-screen-shot-2011-08-26-9.03.10-pm.png
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Old 08-26-2011
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int capsule- post limbb
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Old 08-26-2011
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Default postererior limb of internal capsule

Quote:
Originally Posted by ricko335 View Post
A 68 year old male with history of hypertension and hypercholesterolemia presents to the emergency room with acute onset weakness of the right arm and leg. His work-up is reveals an acute stroke in what region of the brain?
A. Corpus callosum
B. Posterior limb of internal capsule
C. Globus pallidus external
D. Anterior limb of internal capsule
E. Globus pallidus internal
posterior limb
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Old 08-27-2011
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posterior limb
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Old 08-28-2011
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The correct answer is B.
Infarct of the posterior limb of the internal capsule results in pure motor hemiparesis.
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