Pituitary macroadenoma manifesting as an isolated fourth nerve palsy.

Petermann, S H; Newman, N J · Am J Ophthalmol · 1999

case_report · Level V

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Abstract

To describe an unusual ophthalmic manifestation of a pituitary adenoma. Case report. A 32-year-old man had left supraorbital and frontal headaches and new-onset vertical diplopia. Examination showed a left fourth nerve palsy and increased vertical fusional amplitudes. Magnetic resonance imaging disclosed a sellar mass consistent with a pituitary macroadenoma. A pituitary adenoma may rarely manifest with an isolated fourth nerve palsy.

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