Facial nerve schwannoma mimicking acute mastoiditis

AbstractSchwannomas are benign tumors arising from Schwann cells which are a protective casing of nerves, composing myelin sheath and can develop in any nerve where Schwann cells are present. Most common are vestibulocochlear nerve schwannomas. Facial nerve schwannomas (FNSs) are uncommon tumors involving seventh nerve of which geniculate ganglion involvement is most common. Clinical presentations and the imaging appearances of FNSs are influenced by the topographical anatomy of the facial nerve and vary according to the segments involved. We report a case of 73-year-old man presenting with right side facial weakness of lower motor neuron type involvement. Computed tomography and magnetic resonance imaging are clinching the diagnosis. An early diagnosis is important in containing the disease facilitating early surgical intervention.

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Intraparotid Multiple Facial Nerve Schwannoma

Acta Otorrinolaringologica (English Edition) ◽

10.1016/j.otoeng.2013.11.011 ◽

2013 ◽

Vol 64 (6) ◽

pp. 444-446

Author(s):

Eduardo A. Mena-Domínguez ◽

José I. Benito-Orejas ◽

Darío Morais-Pérez ◽

María A. Álvarez-Quiñones

Keyword(s):

Facial Nerve ◽

Facial Nerve Schwannoma

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Late discovery of infantile facial nerve schwannoma in a 10-year-old girl

International Journal of Pediatric Otorhinolaryngology Extra ◽

10.1016/j.pedex.2006.01.002 ◽

2006 ◽

Vol 1 (1) ◽

pp. 72-75

Author(s):

Sharon L. Cushing ◽

Joel Fluss ◽

Pamela Cooper ◽

Jiri Vasjar ◽

Manohar Shroff ◽

...

Keyword(s):

Facial Nerve ◽

Late Discovery ◽

Facial Nerve Schwannoma

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Schwannoma of the Zygomatic Branch of the Facial Nerve

Ear Nose & Throat Journal ◽

10.1177/01455613211041235 ◽

2021 ◽

pp. 014556132110412

Author(s):

Adamantios Kilmpasanis ◽

Nikolaos Tsetsos ◽

Alexandros Poutoglidis ◽

Aikaterini Tsentemeidou ◽

Sotiria Sotiroudi ◽

...

Keyword(s):

Facial Nerve ◽

Nerve Injury ◽

Rare Case ◽

Facial Nerve Injury ◽

Presenting Symptoms ◽

Nerve Tumor ◽

The Right ◽

Facial Nerve Schwannoma

Significance Statement Facial nerve schwannoma is extremely uncommon. Despite its rarity, it is considered the most common facial nerve tumor and potentially affects any segment of the nerve. Presenting symptoms vary depending on the location of the neoplasm. Tumors pertaining to the extratemporal course of the nerve mainly appear as an asymptomatic parotid mass. We present a rare case of schwannoma of the zygomatic branch of the right facial nerve that was surgically resected, without facial nerve injury.

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Evaluation and Management of Facial Nerve Schwannoma

Otolaryngologic Clinics of North America ◽

10.1016/j.otc.2018.07.013 ◽

2018 ◽

Vol 51 (6) ◽

pp. 1179-1192 ◽

Cited By ~ 8

Author(s):

Alicia M. Quesnel ◽

Felipe Santos

Keyword(s):

Facial Nerve ◽

Facial Nerve Schwannoma

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Facial Nerve Schwannoma Presenting as a Tympanic Mass

Ear Nose & Throat Journal ◽

10.1177/014556130608500609 ◽

2006 ◽

Vol 85 (6) ◽

pp. 366-368 ◽

Cited By ~ 2

Author(s):

Sejal P. Sarolia ◽

Christopher J. Danner ◽

Eren Erdem

Keyword(s):

Facial Nerve ◽

Facial Nerve Schwannoma

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Giant Facial Nerve Schwannoma with Extra-Temporal Involvement: A Series Of Two Cases

Indian Journal of Otolaryngology and Head & Neck Surgery ◽

10.1007/s12070-021-03067-w ◽

2022 ◽

Author(s):

Mehrin Shamim ◽

Pooja K. Vasu ◽

Savith Kumar ◽

J. G. Aishwarya ◽

Satish Nair

Keyword(s):

Facial Nerve ◽

Facial Nerve Schwannoma

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Extratemporal intraparotid facial nerve schwannoma

BMJ Case Reports ◽

10.1136/bcr-2020-239407 ◽

2021 ◽

Vol 14 (1) ◽

pp. e239407

Author(s):

Stuti Chowdhary ◽

Saranya Thangavel ◽

Sivaraman Ganesan ◽

Arun Alexander

Keyword(s):

Case Report ◽

Facial Nerve ◽

Facial Palsy ◽

Neurofibromatosis 2 ◽

Eighth Nerve ◽

Seventh Nerve ◽

Facial Nerve Schwannoma ◽

Histopathologic Confirmation

Schwannomas of the eighth nerve are common, usually found in syndromic association with neurofibromatosis-2. The occurrence of seventh nerve schwannoma, especially in its extratemporal course, is very rare. Here, we present a case report of an extratemporal facial nerve schwannoma diagnosed preoperatively with cytopathology and postoperative histopathologic confirmation. Histopathology provides the confirmatory diagnosis in such cases. An atypical diagnosis of neural schwannomas should be kept in mind when facial palsy is clinically encountered in the absence of any other aetiological factors.

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