Light cupula of the horizontal semicircular canal occurring alternately on both sides: a case report.

Q2 Medicine

BMC Ear, Nose and Throat Disorders Pub Date : 2015-03-14 eCollection Date: 2015-01-01 DOI:10.1186/s12901-015-0015-z

Jung Eun Shin, Chang-Hee Kim

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引用次数: 5

Abstract

Background: The light cupula is a condition wherein the cupula of the semicircular canal has a lower specific gravity than its surrounding endolymph. It is characterized by a persistent geotropic direction-changing positional nystagmus in the supine head-roll test, and the identification of a null plane with slight head-turning to either side.

Case presentation: This study describes a case of recurring light cupula that occurred alternately on both sides. At the first episode, a null plane was identified on the right side, which led to the diagnosis of a light cupula on the right side. At the second episode, a null plane was identified on the left side, leading to the diagnosis of a light cupula on the left side.

Conclusion: This is the first case report of recurring light cupula alternately involving both sides. Although the pathophysiology is not entirely understood yet, the light cupula should be considered as one of causes of recurrent positional vertigo.

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双侧水平半规管轻丘交替发生1例。

背景:轻丘是指半规管丘的比重低于其周围的内淋巴。它的特点是在仰卧头滚试验中出现持续的地向性方向改变的位置性眼球震颤，以及轻微的头向两侧转动的零平面识别。病例介绍:本研究描述了一个反复出现的双侧轻丘交替发生的病例。在第一次发作时，在右侧发现了一个空平面，这导致了右侧轻丘的诊断。在第二次发作时，在左侧发现了一个空平面，导致左侧诊断为轻丘。结论:这是第一例复发性双侧轻丘交替累及。虽然病理生理尚不完全清楚，轻丘应被认为是复发性位置性眩晕的原因之一。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

BMC Ear, Nose and Throat Disorders Medicine-Otorhinolaryngology

CiteScore

3.30

自引率

0.00%

发文量

期刊介绍： BMC Ear, Nose and Throat Disorders is an open access journal publishing original peer-reviewed research articles in all aspects of the prevention, diagnosis and management of ear, nose and throat disorders, as well as related molecular genetics, pathophysiology, and epidemiology. BMC Ear, Nose and Throat Disorders (ISSN 1472-6815) is indexed/tracked/covered by PubMed, CAS, EMBASE, Scopus and Google Scholar.