M Hashimoto1, K Ohtsuka. 1. Department of Ophthalmology, Sapporo Medical University, School of Medicine, Japan.
Abstract
PURPOSE: To describe the magnetic resonance imaging features of bilateral internal ophthalmoplegia as an oculomotor fascicular syndrome. METHODS: A 55-year-old man was initially examined with bilateral photophobia. Neuro-ophthalmologic examinations disclosed preganglionic bilateral internal ophthalmoplegia. Magnetic resonance imaging of the brainstem was performed. RESULT: Magnetic resonance imaging disclosed high-intensity areas on T2-weighted images along medial portions of the bilateral oculomotor fascicles in the mesencephalon. CONCLUSION: These findings suggest that mesencephalic lesions may selectively cause bilateral internal ophthalmoplegia as a partial oculomotor fascicular syndrome.
PURPOSE: To describe the magnetic resonance imaging features of bilateral internal ophthalmoplegia as an oculomotor fascicular syndrome. METHODS: A 55-year-old man was initially examined with bilateral photophobia. Neuro-ophthalmologic examinations disclosed preganglionic bilateral internal ophthalmoplegia. Magnetic resonance imaging of the brainstem was performed. RESULT: Magnetic resonance imaging disclosed high-intensity areas on T2-weighted images along medial portions of the bilateral oculomotor fascicles in the mesencephalon. CONCLUSION: These findings suggest that mesencephalic lesions may selectively cause bilateral internal ophthalmoplegia as a partial oculomotor fascicular syndrome.