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February 1990

Isolated Inferior Oblique Paresis From Brain-Stem Infarction: Perspective on Oculomotor Fascicular Organization in the Ventral Midbrain Tegmentum

Author Affiliations

From the Department of Neurology, State University of New York, Syracuse (Dr Castro); and the Neuro-Ophthalmology Unit (Dr Johnson) and Department of Radiology (Dr Mamourian), The Milton S. Hershey Medical Center, Pennsylvania State University, Hershey.

Arch Neurol. 1990;47(2):235-237. doi:10.1001/archneur.1990.00530020149032

• We present the case of an isolated inferior oblique muscle paresis from ventral midbrain infarction involving the oculomotor fascicular fibers. Based on this case and a review of the literature, the anatomic organization of the oculomotor nerve fascicles and of the pupillary fibers in the ventral midbrain tegmentum is proposed.

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