Schwannoma of the External Auditory Canal: An Exceptional Location

Morais, D; Santos, Jaime; Alonso, Marta; Ovelar, Yolanda

doi:10.1016/s2173-5735(07)70327-7

Cited by 9 publications

(10 citation statements)

References 5 publications

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“…Verocay in 1908 was the first who described the solitary schwannoma and gave it the name of neurinoma; the name schwannoma was assigned by Batsakis in 1974. Schwannoma is also known by other terms, such as neurinoma, neurilemmoma, mioschwannoma, schwannoglioma, etc [6] . The first case of AS was reported by Fodor et al in 1977.…”

Section: Discussionmentioning

confidence: 99%

Hemorrhagic Auricular Schwannoma: A case report

Al-Ani

2020

Egyptian Journal of Ear, Nose, Throat and Allied Sciences

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Introduction: Schwannoma is a benign tumor of Schwann cells and is seldom to be seen in the auricle. In addition to the rarity of auricular schwannoma (AS), intratumoral bleeding is never previously reported. Case report: A 35-year-old female patient who has presented with right painless auricular mass for 2 years. A sudden and rapid increase in its size occurred in the last 2 months before presentation. The mass was excised under general anesthesia. Histopathological examination proved the diagnosis of AS. Discussion: Schwannoma is a slow-growing benign tumor. It commonly affects the head and neck region between 25-45%. And vestibular schwannoma is the commonest type of schwannomas in this area. The first case of AS was reported by Fodor et al. in 1977. Since that time only 4 cases were reported in the world. Bleeding within schwannomas e.g. vestibular schwannoma was reported, but it is not reported in case of AS. Therefore, this hemorrhagic AS was the first reported case in the world. Conclusion: AS is seldom seen in clinical practice. And intratumoral bleeding is never reported before.

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Section: Discussionmentioning

confidence: 99%

Hemorrhagic Auricular Schwannoma: A case report

Al-Ani

2020

Egyptian Journal of Ear, Nose, Throat and Allied Sciences

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“…The range of ages in these cases was 18 to 59 years and most patients presented with a mass in their external auditory canal with or without progressive hearing loss. Only one case was discovered by chance during a stapedectomy for otosclerosis [ 2 ]. In all the cases a CT scan was performed and it showed a well-circumscribed, soft tissue mass narrowing the external auditory canal.…”

Section: Discussionmentioning

confidence: 99%

Schwannoma with chondroid metaplasia of the external auditory canal – a rare finding in a rare location: a case report

et al. 2018

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BackgroundSchwannomas are uncommon tumors of the external auditory canal. In the English literature, very few cases of schwannomas originating in the external auditory canal were reported and none of them showed chondroid metaplasia. We report the first case of schwannoma with chondroid metaplasia in this location.Case presentationIn this report, we described a 22-year-old white man who presented with an external auditory slow growing mass. A computed tomography scan of the temporal bone demonstrated a well-circumscribed, soft tissue mass narrowing most of the external auditory canal. A surgical biopsy was performed and the histological examination showed a schwannoma with chondroid metaplasia.ConclusionSchwannoma should be considered in the differential diagnosis of benign or malignant tissue masses involving the external ear canal.

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“…Schwannoma menyelubungi saraf perifer, saraf kranial, dan serabut saraf otonom. 1 Beberapa penelitian melaporkan tumor ini terletak di telinga luar, umumnya melibatkan KAE, 1,13 sangat jarang terjadi pada aurikula. 3 Kasus ini melaporkan Schwannoma pada aurikula dekstra yang meluas ke KAE, di mana insidennya sangat jarang karena daerah tersebut sangat sedikit memiliki serabut saraf.…”

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“…Diagnosis ditegakkan dari anamnesis, pemeriksaan fisik, dan pemeriksaan penunjang. Anamnesis terdapat benjolan di aurikula dan KAE, tumbuh lambat, tidak nyeri, 2,6,13 dapat disertai kurang dengar ataupun tinnitus, 6 jarang disertai keluar cairan dari telinga. 1,6 Pemeriksaan fisik didapatkan massa berbatas tegas, mobile, tidak nyeri tekan.…”

Section: Google Scholarunclassified

“…2 Pemeriksaan penunjang CT scan atau MRI (magnetic resonance imaging) mastoid dengan kontras dapat mengetahui perluasan tumor. 13 Pemeriksaan histopatologi (PA) merupakan baku emas (gold standart). 3,5 Pemeriksaan mikroskop dengan pewarnaan H&E (haematoxyllin eosin) menunjukkan proliferasi sel Schwann membentuk dua pola histologi khusus disebut Antoni A dan Antoni B.…”

Section: Google Scholarunclassified

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Schwannoma aurikula dekstra yang meluas ke kanalis auditorius eksternus

Sari¹,

Ruspita²

2017

Oto Rhino Laryn Indones

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Latar belakang: Schwannoma merupakan tumor jinak yang berasal dari sel Schwann. InsidenSchwannoma aurikula sangat jarang. Sebagian besar yang terjadi adalah Schwannoma vestibular.Penatalaksanaaan dengan ekstirpasi secara in toto dapat mencegah kekambuhan.Tujuan: Melaporkansatu kasus jarang, yaitu Schwannoma aurikula yang meluas ke kanalis auditorius eksternus (KAE).Kasus: Anak laki-laki usia 3 tahun datang dengan keluhan muncul benjolan pada daun telinga kiri sejak 6bulan terakhir, yang membesar perlahan hingga menutupi liang telinga. Dilakukan ekstirpasi biopsi padamassa tumor, dengan pendekatan retroaurikula. Massa dapat dilepas secara in toto. Hasil histopatologikesan Schwannoma. Enam bulan pasca operasi tidak didapatkan kekambuhan.Metode: Penelusurankepustakaan didapatkan 5 jurnal laporan kasus yang relevan.Hasil: Dari 5 kasus, seluruhnya melakukanekstirpasi massa Schwannoma secara in toto. Terdapat 2 kasus mengunakan pendekatan transmeatal, 2kasus dengan pendekatan retroaurikula, dan 1 kasus ekstirpasi langsung pada aurikula.Kesimpulan:Schwannoma aurikula merupakan kasus yang sangat jarang. Tidak ada kecenderungan usia maupun jeniskelamin tertentu. Penanganan dengan ekstirpasi yang komplit dapat mencegah kekambuhan.Kata kunci: Schwannoma aurikula, ekstirpasi, insisi retroaurikula ABSTRACTBackground: Schwannoma is a Schwann cells benign tumors. The incidence of auricularSchwannoma is rare. The most common is vestibular Schwannoma. Treatment of choice is completesurgical excision, and recurrence is rare. Purpose: Reporting a rase case of an auricular Schwannomathat spread to external auditory canals. Case: A three years old boy presented with a swelling in the leftauricular for 6 months, which was progressively increasing and spread into external auditory canals.An excisional biopsy via postauricular was performed under general anesthesia. The mass was totallyremoved. Diagnosis was reported to be Schwannoma by histopathologic examination. There was no signsof local recurrence during a 6 months of follow-up period. Method: Search literatures for evidence found5 case report journals were relevant to our clinical question. Result: From the 5 journals, all of themopted to do total excisional removal, 2 cases by transmeatal incision, 2 cases by postauricular incision,and 1 case by direct incision of the auricular mass. Conclusion: Auricular schwannoma is a rare case.Previous case reports showed no sufficient relevance on the age and sex tendency to the occurence ofauricular Schwannoma. A complete extirpation can prevent recurrence.Key words: Auricular schwannoma, extirpation, postroauricular incision

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Schwannoma of the External Auditory Canal: An Exceptional Location

Cited by 9 publications

References 5 publications

Hemorrhagic Auricular Schwannoma: A case report

Hemorrhagic Auricular Schwannoma: A case report

Schwannoma with chondroid metaplasia of the external auditory canal – a rare finding in a rare location: a case report

Schwannoma aurikula dekstra yang meluas ke kanalis auditorius eksternus

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