tompat
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in kaplan anatomy lecture notes, pg. no.390(2004 edition)
medial pontine syndrome, its mentioned that lesions involving medial pons if extends dorsally and involves abducens nucleus(which includes the horizontal gaze center in the PPRF),there may be a lateral gaze paralysis in which both the eyes are forcefully directed to the side IPSILATERAL to the lesion.
i contend that it shud be CONTRALATERAL, please express ur opinion and correct me if i m wronge.
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| Jackofknives
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No mate.
Take it this way. RIGHT CN6 innervates the lateral rectus m. on the RIGHT, then via MLF to the LEFT CN3 and then innervates the LEFT medial rectus muscle.
So in summery, lesion to the RIGHT CN6, means paralysis of the RIGHT lateral rectus and medial rectus palsy on the LEFT = lateral gaze deficit to the RIGHT.
Edited by Jackofknives on 05/30/07 - 01:32 AM
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| tompat
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kaplan 2002 says its contralateral.
here is what i conclud:
lesion to right cr.n 6 will cause internal strabismus of right eye and hence will be directed to left side.
but if u will fix pts head and ask him to follow ur finger on right side he wont be able to c on right side,so the gaze palsy is on right side and eyes will be directed to left side
now it dawned upon me one can say it either ways
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