acintya wrote:
D: Circle of Willis
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"never argue with a fool, they'll bring you down to their level and beat you with experience" FORUM RULES-- Those who believe in telekinesis, raise my hand. I get enough exercise just by pushing my luck --P4U World.." The pure and simple truth is rarely pure and never simple."
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| new_n_lost
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The correct answer is D.
Two relationships are useful in solving this problem. The first relationship is that adult polycystic kidney disease has a specific association with berry aneurysms involving the circle of Willis and its branches. The second relationship is that spontaneous subarachnoid hemorrhages are most often the result of bleeding from berry aneurysms. The berry aneurysms develop at sites of congenital weakness (near branch points) of the relatively unsupported vessels of the circle of Willis.
AV malformations (choice A) tend to produce mixed parenchymal and subarachnoid hemorrhages.
Rupture of bridging veins (choice B) produces a subdural hematoma.
Rupture of Charcot-Bouchard aneurysms (choice C) can be seen with hypertension (which may complicate adult polycystic kidney disease). Such rupture produces intraparenchymal hemorrhage, which if severe, may spread to the subarachnoid space.
Rupture of the middle meningeal artery (choice E) produces epidural hematoma.
___________________
"never argue with a fool, they'll bring you down to their level and beat you with experience" FORUM RULES-- Those who believe in telekinesis, raise my hand. I get enough exercise just by pushing my luck --P4U World.." The pure and simple truth is rarely pure and never simple."
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