Bruns Nystagmus Due to a Cerebellopontine Angle Tumor

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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 Collection: https://novel.utah.edu/Gold/
Publisher North American Neuro-Ophthalmology Society
Holding Institution Spencer S. Eccles Health Sciences Library, University of Utah
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
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