Isolated superior rectus palsy due to contralateral midbrain infarction.
BACKGROUND
Isolated superior rectus palsy due to a contralateral midbrain lesion has not been reported.


METHODS
A 71-year-old woman suddenly developed diplopia. Examination showed that she had isolated superior rectus paresis. Magnetic resonance imaging showed a tiny infarct at the area of the oculomotor nucleus on the contralateral side.


CONCLUSIONS
Isolated superior rectus palsy may be caused by a contralateral midbrain lesion that selectively involves crossing superior rectus nerve fibers.
Kwon
Jee-Hyun
JH
Departments of Neurology, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Korea.
Kwon
Sun U
SU
Ahn
Hyo-Sook
HS
Sung
Ki-Bum
KB
Kim
Jong S
JS
D000368:Aged; D020520:Brain Infarction / Q000150:complications*; D048909:Diabetes Complications; D004172:Diplopia / Q000150:complications; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications; D018810:Magnetic Resonance Angiography; D008636:Mesencephalon / Q000473:pathology; D009801:Oculomotor Muscles / Q000294:innervation; D015840:Oculomotor Nerve Diseases / Q000209:etiology* / Q000503:physiopathology