Identifier |
Bruns_nystagmus |
Title |
Bruns Nystagmus Due to a Cerebellopontine Angle Tumor |
Alternative Title |
Video 5.6 Bruns nystagmus due to a cerebellopontine angle vestibular schwannoma from Neuro-Ophthalmology and Neuro-Otology Textbook |
Creator |
Daniel R. Gold, DO; Veeral S. Shah, MD, PhD |
Affiliation |
(DRG) Departments of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery, Emergency Medicine, and Medicine, The Johns Hopkins School of Medicine, Baltimore, Maryland; (VS) Departments of Ophthalmology, Pediatric and Adult Neuro-Ophthalmology, Texas Children's Hospital, Baylor College of Medicine, University of Texas, Austin, Texas |
Subject |
Jerk Nystagmus; Gaze Evoked Nystagmus; Vestibular Nystagmus |
Description |
𝗢𝗿𝗶𝗴𝗶𝗻𝗮𝗹 𝗗𝗲𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻: This is a 15-yo-girl who experienced headache and imbalance leading to an MRI which showed a left sided cerebellopontine angle (CPA) tumor. Because of involvement of the left brainstem/cerebellum (e.g., dysfunction of the neural integrator/gaze holding apparatus) by the CPA mass, there was left-beating ipsilesional "gaze-evoked" nystagmus in left gaze. Note the larger amplitude and lower frequency gaze-evoked nystagmus in left gaze. Because of involvement of the left 8th cranial nerve, there was right-beating contralesional "vestibular" nystagmus in right gaze (in accordance with Alexander's law). Note the smaller amplitude and higher frequency vestibular nystagmus in right gaze. 𝗡𝗲𝘂𝗿𝗼-𝗼𝗽𝗵𝘁𝗵𝗮𝗹𝗺𝗼𝗹𝗼𝗴𝘆 𝗮𝗻𝗱 𝗡𝗲𝘂𝗿𝗼-𝗼𝘁𝗼𝗹𝗼𝗴𝘆 𝗧𝗲𝘅𝘁𝗯𝗼𝗼𝗸 𝗟𝗲𝗴𝗲𝗻𝗱: This patient experienced headache and imbalance leading to an MRI which showed a left sided cerebellopontine angle (CPA) vestibular schwannoma. Because of involvement of the left brainstem/cerebellum (e.g., dysfunction of the neural integrator/gaze holding apparatus) by the CPA mass, there was left-beating ipsilesional "gaze-evoked" nystagmus in left gaze. Note the larger amplitude and lower frequency gaze-evoked nystagmus in left gaze. Because of involvement of the left 8th cranial nerve, there was right-beating contralesional "vestibular" nystagmus in right gaze (in accordance with Alexander's law). Note the smaller amplitude and higher frequency vestibular nystagmus in right gaze. https://collections.lib.utah.edu/ark:/87278/s60p4p3j (Video courtesy of Dr. Veeral Shah) |
Date |
2017 |
Language |
eng |
Format |
video/mp4 |
Type |
Image/MovingImage |
Collection |
Neuro-Ophthalmology Virtual Education Library: Dan Gold Neuro-Ophthalmology Collection: https://novel.utah.edu/Gold/ |
Publisher |
North American Neuro-Ophthalmology Society |
Holding Institution |
Spencer S. Eccles Health Sciences Library, University of Utah, 10 N 1900 E SLC, UT 84112-5890 |
Rights Management |
Copyright 2016. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright |
ARK |
ark:/87278/s60p4p3j |
Setname |
ehsl_novel_gold |
ID |
1248764 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s60p4p3j |