title: A Case of Traumatic Unilateral Internuclear Ophthalmoplegia: Clinical Significance of Susceptibility-Weighted Imaging.
abstract: A 43-year-old man was admitted for head trauma after falling backward. The patient complained of diplopia. Unilateral internuclear ophthalmoplegia (INO) was diagnosed during the neurologic examination. Initially, no specific finding was shown on T2-weighted, T1-weighted, and fluid attenuated inversion recovery brain magnetic resonance image (MRI) or brain computed tomography (CT). However, susceptibility-weighted imaging (SWI) definitively demonstrated a tiny hemorrhage at the midline of the pontomesencephalic junction. The patient's symptom improved after 12 weeks. We discuss the clinical significance of SWI when traumatic INO due to a tiny hemorrhage is suspected.
authors.affiliation: Department of Neurosurgery, College of Medicine, Chung-Ang University, Seoul, Korea.
authors.forename: Shin-Heon
authors.initials: SH
authors.lastname: Lee
authors.affiliation: Department of Neurosurgery, College of Medicine, Chung-Ang University, Seoul, Korea.
authors.forename: Taek-Kyun
authors.initials: TK
authors.lastname: Nam
authors.affiliation: Department of Neurosurgery, College of Medicine, Chung-Ang University, Seoul, Korea.
authors.forename: Yong-Sook
authors.initials: YS
authors.lastname: Park
authors.affiliation: Department of Neurosurgery, College of Medicine, Chung-Ang University, Seoul, Korea.
authors.forename: Jeong-Taik
authors.initials: JT
authors.lastname: Kwon
keywords: Hemorrhage; Internuclear ophthalmoplegia; Susceptibility-weighted imaging; Trauma