Isolated pupil-sparing third-nerve palsy as the presenting sign of multiple sclerosis
N. J. Newman and S. Lessell
Neuro-ophthalmology Unit, Massachusetts Eye and Ear Infirmary, Boston 02114.
A 27-year-old man presented with an isolated, pupil-sparing, partial
third-nerve palsy. Etiologic investigations proved unrevealing. Subsequent
development of an optic neuropathy prompted magnetic resonance imaging,
which confirmed the clinical suspicion of multiple sclerosis. Rarely does
multiple sclerosis present with oculomotor nerve involvement.
