Unilateral Fourth Nerve Palsy due to Presumed Metastatic Melanoma

Joshua Pasol, Eric A. Mellon, Lynn G. Feun, Gaurav M. Saigal, Tejan P. Diwanji, Ricardo J. Komotar

Research output: Contribution to journalArticlepeer-review


ABSTRACT: An 81-year-old man with a history of metastatic melanoma presented with sudden onset of painless, binocular vertical diplopia. The clinical examination was consistent with a right fourth nerve palsy. An MRI of the head revealed a mass dorsal to the right tectum at the level of the inferior colliculus. An MRI just 4 months prior did not show a lesion in that location. An MRA of the head did not show an aneurysm. This is a rare case of an isolated fourth nerve palsy believed to be due to metastatic melanoma compressing the nerve along the dorsal midbrain.

Original languageEnglish (US)
Pages (from-to)e134-e135
JournalJournal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society
Issue number1
StatePublished - Mar 1 2021

ASJC Scopus subject areas

  • Medicine(all)


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