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  #1  
Old 06-17-2011
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Neuro Brainstem cross section lesion question

A patient with a lesion in the area identified in the figure is most likely to have a history of:

Brainstem cross section lesion question-brainstem.jpg
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A. Coughing fits
B. Excessive salivation
C. Internuclear ophthalmoplegia
D. Ptosis
E. Vomiting
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Old 06-17-2011
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Is it B????
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Old 06-17-2011
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I am gonna go with C .
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looks like a c/s of mid brain, affecting the 3rd nerve, so i'd go with D: ptosis


internuclear ophthalmoplegia refers to medial long. fasciculus lesions. these fibres connect the 3rd nerve & 6th nerve nuclei with reticular formation
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I would go with D....
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internuclear ophthalmoplegia
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Old 06-17-2011
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Thumbs Up Weber Syndrome

D

It is medial midbrain (Weber) syndrome due to occlusion of Post. Cerebral Artery.

Damged: Fibres of Cn III so causing occulomotor nerve palsy (Lat Strabismus, dilated pupil and ptosis)

Also damaging cortico spinal and corticobulbabar tract so their features.

ref: Kaplan pg: 404 2011 ed

Last edited by vikash; 06-17-2011 at 08:53 AM.
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Old 06-17-2011
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Default d) Ptosis

Quote:
Originally Posted by bebix View Post
A patient with a lesion in the area identified in the figure is most likely to have a history of:

Attachment 1528
click image to enlarge

A. Coughing fits
B. Excessive salivation
C. Internuclear ophthalmoplegia
D. Ptosis
E. Vomiting
3,6,12 cranial nerves lie medially..paralysis of third nerve-->ptosis
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Correct Answer correct answer

D. Ptosis

Weber Syndrome:

Brainstem cross section lesion question-brainstem1.jpg
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Brainstem cross section lesion question-brainstem2.jpg
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Brainstem cross section lesion question-brainstem3.jpg
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Brainstem cross section lesion question-brainstem4.jpg
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Old 05-13-2013
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typical case of webers syndrome, infarction of pca , cas affext occulomotor and can cause ptosis,
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Figures-, Nervous-System-, Neuroanatomy-, Pathology-, Step-1-Questions

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