Meningioma of the internal auditory canal

Laudadio, P; Canani, Francesco Berni; Cunsolo, Elio Maria

doi:10.1080/00016480410018214

Cited by 10 publications

(8 citation statements)

References 17 publications

(6 reference statements)

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“…In the cases reviewed, where facial postoperative function was described, more than 50% presented a “normal” facial nerve 6–8,11–12,15–27,31,33–34,36 . Some authors opted for a subtotal tumor removal in order to preserve the facial nerve 14,15,22,27 .…”

Section: Discussionmentioning

confidence: 99%

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Meningiomas of the Internal Auditory Canal

Sykopetrites¹,

Piras²,

Taibah³

et al. 2020

The Laryngoscope

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Objective Identify and define specific preoperative and postoperative characteristics of intracanalicular meningiomas (ICMs) in order to improve their diagnosis and management, and to differentiate them from intrameatal vestibular schwannomas (IMVSs). Methods Preoperative symptomatology, magnetic resonance imaging (MRI), and postoperative outcomes of 28 ICMs were analyzed. The results were compared to the literature and IMVSs treated by our group. Results Anacusis and progressive hearing loss were more frequent in the present population than the cases reviewed (P = .0064 and P = .0001, respectively). Hearing loss affected more than 90% of the patients, with anacusis in 32.1% of the cases. Facial palsy affected 17.9% of the patients. In comparison to IMVSs, preoperative anacusis was more associated to meningiomas (P = .0037), and the facial nerve was more compromised in ICMs than IMVSs, both preoperatively (P = .0011) and at follow‐up (P < .0001). According to a re‐evaluation of preoperative MRIs and comparison with IMVSs, linear tumor borders, and linear morphology along the internal auditory canal wall, but not the presence of a dural tail, were significantly more present in ICMs (P = .0035, P = .0004, P = .1963, respectively). These characteristics could have led to a correct preoperative diagnosis in 61% of our cases. Conclusion Contrariwise to IMVSs, the frequent preoperative anacusis and facial palsy demonstrate the more aggressive nature of ICMs, which also carry a higher risk of postoperative facial palsy and difficulty to preserve hearing. An attentive evaluation of imaging should ease diagnosis, and asymptomatic or stable ICMs should be enrolled in a wait‐and‐scan protocol. Level of Evidence 4 Laryngoscope, 131:E413–E419, 2021

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Section: Discussionmentioning

confidence: 99%

“…There have been less than 50 cases of pure ICMs described in literature and nearly 100 IAC meningiomas extending partly in the CPA (largest series are collected in Table I). 6–8,11–36 …”

Section: Introductionmentioning

confidence: 99%

Meningiomas of the Internal Auditory Canal

Sykopetrites¹,

Piras²,

Taibah³

et al. 2020

The Laryngoscope

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“…The cerebello-pontine angle (CPA) is the space, where meningioma is the second most common neoplasm following schwannoma [5,7]. In this location, meningiomas can be classified as being anterior or posterior to the internal acoustic opening, also referred to as premeatal and retromeatal location respectively [5].…”

Section: Discussionmentioning

confidence: 99%

“…Meningiomas developing inside the internal acoustic canal are very rare, and therefore there are only single scientific reports on this issue [2,4,7]. When diagnosing such tumors, the clinical and radiological resemblance to the most common IAM neoplasm, i.e.…”

Section: Discussionmentioning

confidence: 99%

Meningioma mimicking vestibular schwannoma – a case report

2019

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Meningiomas are one of the most common intracranial neoplasms, usually located in the supratentorial region. Their location within the posterior cranial fossa is rare, but even in such cases, the diagnosis is possible owing to the characteristic imaging features. In this article, we present a case report of a patient with a meningioma of an internal acoustical meatus resembling vestibulo-cochlear nerve schwannoma in its typical location, causing symptoms such as asymmetric hearing loss, tinnitus and dizziness.

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“…When faced with VSs, the position of the FN is generally predictable, with the nerve displaced anteriorly and medially. Variability at the site of origin of a meningioma within the IAC may alter the location of the FN, which may be displaced posteriorly (4,8,16,23,24). An intracanalicular meningioma may also be firmly adherent to the facial and/or vestibulocochlear nerves, which may require meticulous sharp dissection.…”

mentioning

confidence: 99%