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Case Reports
. 1976 Mar;33(3):193-5.
doi: 10.1001/archneur.1976.00500030049010.

Midbrain corectopia

J B Selhorst, W F Hoyt, M Feinsod, Y Hosobuchi
Case Reports

Midbrain corectopia

J B Selhorst et al. Arch Neurol. 1976 Mar.

Abstract

Intermittent corectopia was recently observed in a patient with bilateral, rostral midbrain infarction. Results from neuropathologic examination disclosed isolated but intact Edinger-Westphal nuclei. An explanation of midbrain corectopia centered on segmental innervation of the pupil by the Edinger-Westphal nucleus. In the presence of a paralyzed dilator muscle, select, central inhibition of sphincter tone resulted in an oval and eccentric pupil.

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