binunair98
Forum Newbie
Topics: 5
Posts: 19
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in kaplan anatomy notes it says on page 438- where there is a aneurysm in anterior commpunicating artery and anterior cerebral artery juntion patient will have---
bitemporal inferior quadrant anopsia ,but on page 416 fist queston's answer say superios bitemporal anopsia, pleaase help
which one is correct
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| cococat
Forum Junior
Topics: 4
Posts: 46
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In the 2004 kaplan notes(page 423), the answer D is "bitemporal inferior quadrantanopsia", so is it in explanation.
Also in 2004 notes, the Clinical Creelate on page 448 (2003 notes page 438 as you mentioned) only states "The most common aneurysm site in the circle of Willis is where the anterior communicating artery joins an anterior cerebral artery". They deleted the latter part.
So looks like should be "inferior"...
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| DiaHuq
Forum Elite
Topics: 46
Posts: 402
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i'm taking the live lectures right now,and after the last neuroanat lecture i asked Prof.White about the difference in field defect of an optic chiasm compression by an aneurysm of the anterior communication artery and compression by a pituitary tumor.
the pituitary tumor begins compressing the chiasm from the bottom so the nasal fibers from the lower retina are affected first which carries information about the superior field of vision.So initially it is a bitemporal superior quadrananopsia leading to a bitemporal hemianopsia eventually.
the aneurysm of the ant.communicating artery will compress from the top and so the superior nasal fibers(inferior field of vision as it is reversed and upside down)will be affected so it will be a bitemporal inferior quadranopsia
don't worry about any anomalies in the notes if you can apply logic and the basic rules you can answer correctly
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| DiaHuq
Forum Elite
Topics: 46
Posts: 402
|
i'm taking the live lectures right now,and after the last neuroanat lecture i asked Prof.White about the difference in field defect of an optic chiasm compression by an aneurysm of the anterior communication artery and compression by a pituitary tumor.
the pituitary tumor begins compressing the chiasm from the bottom so the nasal fibers from the lower retina are affected first which carries information about the superior field of vision.So initially it is a bitemporal superior quadrananopsia leading to a bitemporal hemianopsia eventually.
the aneurysm of the ant.communicating artery will compress from the top and so the superior nasal fibers(inferior field of vision as it is reversed and upside down)will be affected so it will be a bitemporal inferior quadranopsia
don't worry about any anomalies in the notes if you can apply logic and the basic rules you can answer correctly
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