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J Korean Neurol Assoc. 1999;17(5):710-712.
- Two Cases of Acute Esotropia in Contralateral Thalamic Hemorrhage
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Jong-Ho Lee, M.D., Bon-Dae Ku, M.D., Kay-Hoon Lee, M.D., Kyoung Heo, M.D.
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Department of Neurology, Pocheon CHA University College of Medicine
- 시상출혈에서 발생한 대측성 안구의 급성 내사위 2예
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이종호, 구본대 ·이계훈 ·허허경
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포천중문의과대학교 분당차병원 신경과
- Abstract
- Monocular gaze palsies which result from a supranuclear cerebral lesion are rare clinical manifestations. The pre-frontal
cortico-oculomotor pathways travel across the thalamus and mesodiencephalic junction terminating directly in
oculomotor complexes. These pathways exist bilaterally and the contralateral oculomotor bundle exerts an inhibitory
influence upon the oculomotor neurons, particularly those related to the medial rectus muscle. The acute disinhibition
of these neurons by a posterior thalamic lesion results in a sustained but transient discharge of the medial rectus and
tonic activation. Impairment of monocular projections in the contralateral posterior thalamus could result in a tonic
activation of the medial rectus, analogous to the conjugate gaze deviation observed with a frontal lobe lesion. We
describe two patients with an acute onset of esotropia and contralateral supranuclear lesions - thalamic hemorrhages.
J Kor Neurol Ass 17(5):710~712, 1999
Key Words : Esotropia, Thalamus, Intracranial Hemorrhage, Supranuclear palsy
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