Abstract
A 71-year-old woman reported vertical diplopia immediately following cardiac catheterization. On examination, she had a right hypertropia that increased on left gaze and right head tilt, with 8 degrees of excyclotorsion of the right eye in primary gaze. She had no other neurologic findings. Postcontrast axial computed tomography (Fig A) and sagittal T1 magnetic resonance imaging (Fig B) demonstrate enhancement of the left fourth nerve nucleus (arrows). Companion anatomic illustrations show the location of the fourth nerve nucleus in the caudal midbrain and its decussation to innervate the contralateral superior oblique muscle.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
