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Keywords = heavy cupula

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10 pages, 5490 KiB  
Case Report
Paroxysmal Positional Nystagmus in Acoustic Neuroma Patients
by Francesco Comacchio, Paola Magnavita and Barbara Bellemo
Audiol. Res. 2023, 13(2), 304-313; https://doi.org/10.3390/audiolres13020026 - 13 Apr 2023
Viewed by 2373
Abstract
The association between acoustic neuroma and positional vertigo with paroxysmal positional nystagmus is relatively rare, but, when present, it certainly represents a challenge for the otoneurologist. There are few reports in the literature on this particular issue, and some questions are still unanswered, [...] Read more.
The association between acoustic neuroma and positional vertigo with paroxysmal positional nystagmus is relatively rare, but, when present, it certainly represents a challenge for the otoneurologist. There are few reports in the literature on this particular issue, and some questions are still unanswered, particularly regarding the characteristics of positional nystagmus that may distinguish between a true benign paroxysmal vertigo and a positional nystagmus associated with the tumor. We present the videonystagmographic patterns of seven patients with acoustic tumor who had paroxysmal positional nystagmus and analyzed its features. A concomitant true benign paroxysmal positional vertigo may be present during the follow-up of a non-treated patient, as the paroxysmal positional vertigo may be the first symptom of the tumor, and it may show characteristics that are very similar to a posterior semicircular canal canalolithiasis or a horizontal canal “heavy or light cupula”. The possible mechanisms are discussed. Full article
(This article belongs to the Special Issue Hearing and Balance in Acoustic Neuroma)
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10 pages, 798 KiB  
Review
Atypical Positional Vertigo: Definition, Causes, and Mechanisms
by Sergio Carmona, Guillermo Javier Zalazar, Martin Fernández, Gabriela Grinstein and João Lemos
Audiol. Res. 2022, 12(2), 152-161; https://doi.org/10.3390/audiolres12020018 - 14 Mar 2022
Cited by 9 | Viewed by 7719
Abstract
Paroxysmal positional vertigo is a frequent cause for consultation. When approaching these patients, we try to differentiate central from peripheral causes, but sometimes we find manifestations that generate diagnostic doubts. In this review, we address atypical paroxysmal positional vertigo, reviewing the literature on [...] Read more.
Paroxysmal positional vertigo is a frequent cause for consultation. When approaching these patients, we try to differentiate central from peripheral causes, but sometimes we find manifestations that generate diagnostic doubts. In this review, we address atypical paroxysmal positional vertigo, reviewing the literature on the subject and giving a provisional definition of atypical positional vertigo as well as outlining its causes and pathophysiological mechanisms. Full article
(This article belongs to the Special Issue Advances in Positional Vertigo)
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