Endolympathic hydrops in patients with vestibular schwannoma: visualization by non-contrast-enhanced 3D FLAIR

Naganawa, Shinji; Kawai, Hisashi; Nakashima, Tsutomu; Ikeda, Mitsuru

doi:10.1007/s00234-010-0834-y

Cited by 43 publications

(37 citation statements)

References 27 publications

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“…[21][22][23][24][25][26][27][28][29][30] A FLAIR image allows the detection of subtle subarachnoid hemorrhage in the CSF space, 9 signal increases in CSF after the inhalation of oxygen, 31 and subtle compositional changes of the labyrinthine fluid (Figs. 6 and 7), 26,27,30,[32][33][34] which can be difficult to recognize on T 1 -weighted images. Heavily T 2 -weighted 3D-FLAIR has been reported to be much more sensitive than regularcontrast 3D-FLAIR.…”

Section: T 2 -Selective Inversion Recoverymentioning

confidence: 99%

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The Technical and Clinical Features of 3D-FLAIR in Neuroimaging

Naganawa

2015

magn reson med sci

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In clinical MR neuroimaging, 3D fluid-attenuated inversion recovery (3D-FLAIR) with a variable-flip-angle turbo spin echo sequence is becoming popular. There are more than 100 reports regarding 3D-FLAIR in the PubMed database. In this article, the technical and clinical features of 3D-FLAIR for neuroimaging are reviewed and summarized. 3D-FLAIR allows thinner slices with multi-planar reformation capability, a higher flow sensitivity, high sensitivity to subtle T 1 changes in fluid, images without cerebrospinal fluid (CSF) inflow artifacts, and a 3D dataset compatible with computer-aided analysis. In addition, 3D-FLAIR can be obtained within a clinically reasonable scan time. It is important for radiologists to be familiar with the features of 3D-FLAIR and to provide useful information for patients.

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Section: T 2 -Selective Inversion Recoverymentioning

confidence: 99%

“…72 Incidentally, endolymphatic hydrops can be recognized on non-contrast-enhanced 3D-FLAIR images due to the signal increase of the perilymph. 33 …”

Section: Vestibular Schwannomamentioning

confidence: 99%

The Technical and Clinical Features of 3D-FLAIR in Neuroimaging

Naganawa

2015

magn reson med sci

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“…The presentation of simultaneous VS and ELH on the same side in the same patient is uncommon and has seldom been described in the literature [13][14][15][16] . Although the two pathologies are most probably of independent origin and should be considered separate entities, presenting and ongoing symptoms may overlap and may cause an incorrect treatment of the cochlear disorder (i.e.…”

Section: Discussionmentioning

confidence: 99%

“…In a study from Kentala and Pyykkö, the authors retrieved information on 127 patients with VS and 243 patients with ELH and found that 38% of the VS patients had the full triad of vertigo, hearing loss and tinnitus and vertigo mimicked that in ELH in 14% of cases 19 . In a recent study to verify whether vertigo in patients with VS correlates to vestibular endolymphatic hydrops, Naganawa et al studied 15 patients with unilateral VS using a noncontrast-enhanced 3D FLAIR MRI and reported vestibular hydrops in 4/15 cases; however, no significant correlation between vertigo and hydrops was found 15 .…”

Section: Discussionmentioning

confidence: 99%

Vestibular Schwannoma and Ipsilateral Endolymphatic Hydrops: An Unusual Association

Ralli

Greco

Altissimi

et al. 2017

The International Tinnitus Journal

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Vestibular schwannoma and endolymphatic hydrops are two conditions that may present with similar audio-vestibular symptoms. The association of the two in the same patient represents an unusual finding that may lead clinicians to errors and delays in diagnosis and clinical management of affected subjects. We discuss the case of a patient with an intrameatal vestibular schwannoma reporting symptoms suggestive for ipsilateral endolymphatic hydrops. The patient presented with fluctuating hearing loss, tinnitus, and acute rotatory vertigo episodes, and underwent a full audiological evaluation and imaging of the brain with contrast-enhanced Magnetic Resonance Imaging. Clinical audio-vestibular and radiological examination confirmed the presence of coexisting vestibular schwannoma and endolymphatic hydrops. Hydrops was treated pharmacologically; vestibular schwannoma was monitored over time with a wait and scan protocol through conventional MRI. The association of vestibular schwannoma and endolymphatic hydrops is rare, but represents a possible finding in clinical practice. It is therefore recommended investigating the presence of inner ear disorders in patients with vestibular schwannoma and, similarly, to exclude the presence of this condition in patients with symptoms typical of inner ear disorders.

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“…In fact, a histopathologic study on 32 VSs showed cochlear pathology including endolymphatic hydrops (15). Moreover, some authors visualized vestibular endolymphatic hydrops in patients with VS by means of MRI (16).…”

Section: Discussionmentioning

confidence: 99%

The Use of Intratympanic Gentamicin in Patients With Vestibular Schwannoma and Disabling Vertigo

Giannuzzi¹,

Merkus²,

Falcioni³

2013

Otology &Amp; Neurotology

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Endolympathic hydrops in patients with vestibular schwannoma: visualization by non-contrast-enhanced 3D FLAIR

Abstract: Vestibular endolymphatic space can be recognized on non-contrast-enhanced 3D FLAIR. In some patients with VS, vestibular hydrops is seen; however, endolymphatic hydrops in the vestibule might not be the only responsible cause of vertigo in the patients with VS.

Cited by 43 publications

References 27 publications

The Technical and Clinical Features of 3D-FLAIR in Neuroimaging

The Technical and Clinical Features of 3D-FLAIR in Neuroimaging

Vestibular Schwannoma and Ipsilateral Endolymphatic Hydrops: An Unusual Association

The Use of Intratympanic Gentamicin in Patients With Vestibular Schwannoma and Disabling Vertigo

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