• 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.
Keane JR, Zaias B, Itabashi HH. Levator-Sparing Oculomotor Nerve Palsy Caused by a Solitary Midbrain Metastasis. Arch Neurol. 1984;41(2):210–212. doi:10.1001/archneur.1984.04050140108038
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