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February 1984

Levator-Sparing Oculomotor Nerve Palsy Caused by a Solitary Midbrain Metastasis

Author Affiliations

From the Departments of Neurology (Dr Keane) and Pathology (Dr Zaias), Los Angeles County-University of Southern California Medical Center; and the Department of Pathology, Harbor-UCLA Medical Center (Dr Itabashi).

Arch Neurol. 1984;41(2):210-212. doi:10.1001/archneur.1984.04050140108038

• One month before death, a 63-year-old man with known lung carcinoma manifested a left third-nerve palsy and crossed ataxia. The oculomotor involvement began with a dilated left pupil and progressed to a complete left oculomotor nerve palsy, with the exception of nearly normal lid function. Pathologic examination revealed a solitary midbrain metastasis involving the left third-nerve nucleus and rootlets, with the exception of the caudal central oculomotor subnucleus and its outflow fibers.

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