Vascular Lesions of the Internal Auditory Canal

Mahran, Amr; Samii, Madjid; Penkert, Götz; Ostertag, Helmut

doi:10.1055/s-2008-1056985

Cited by 13 publications

(19 citation statements)

References 22 publications

(20 reference statements)

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“…Tumors of the CPA and IAC are also rarely found in children less than 10 years of age, but should be considered as a possibility [3,10]. According to our review of the previous reports, there were only two histological proven cases of a venous angioma of the IAC as the cause of unilateral SNHL in adult; 58-and 65-yearold women [11,12]. Their chief complaints were a hearing loss on the affected side with a sudden onset and 5-year duration.…”

Section: Discussionmentioning

confidence: 97%

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A case of unilateral sensorineural hearing loss caused by a venous malformation of the internal auditory canal

Shim

Song

Lee

et al. 2007

International Journal of Pediatric Otorhinolaryngology

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Section: Discussionmentioning

confidence: 97%

“…MRI proved to be the imaging modality of choice for both entities and is appropriate for the diagnosis and follow-up. Also, it provides excellent information on the extension and consistency of the vascular tumor and its relation to the other neural structures within the IAC [11].…”

Section: Discussionmentioning

confidence: 99%

A case of unilateral sensorineural hearing loss caused by a venous malformation of the internal auditory canal

Shim

Song

Lee

et al. 2007

International Journal of Pediatric Otorhinolaryngology

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“…Nach der Literatur war häufigstes initiales Symptom eine progressive sensorineurale Hörminderung [35], wobei eine Primärmanifestation als Hörsturz mit plötzlicher Ertaubung nur einmal auftrat [22]. Interessanterweise wies in der Serie von Pappas et al keiner der Patienten einen Hochtonverlust auf, wie er für die Akustikusneurinome typisch ist [32].…”

Section: Klinische Aspekteunclassified

“…Dies könnte die Tatsa-Knochenneubildung, wie sie für das ossifizierende Hämangiom typisch ist, zeigt. Dieser Tumor weist eine breite Basis zum Knochen [22] sowie eine stärkere Darstellung bei Gabe von Kontrastmittel auf [28]. Das Auftreten von kalzifizierten intratumoralen Thrombosen ist jedoch ebenfalls -wenn auch selten -bei Akustikusneurinomen gesehen worden [3].…”

Section: Abb1a-c ᭣ In Den T2-gewichteten Kernspintomographischen Befunclassified

Knochenneubildungen in einer seltenen Raumforderung des inneren Gehörgangs

Relic

Schick

Kronsbein

et al. 1999

HNO

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Hemangiomas of the skull base are rare neoplasms and are easily misdiagnosed as acoustic neuromas when occurring in the internal auditory canal. Among these tumors, ossifying hemangiomas are characterized histologically be newly formed bone tissue within their substance. We describe a 26-year old female patient who presented with left-sided sensorineural hearing loss and tinnitus. T2-weighted magnetic resonance imaging demonstrated a bright space-occupying lesion of the internal auditory canal with extension to the geniculate ganglion. Bony erosions of the internal auditory canal were proved by high-resolution computed tomography. A hemangioma was suspected preoperatively and was resected via a middle cranial fossa approach. Histologically, new bone formations were found in a cavernous hemangioma. In general, radiologic findings can suggest a hemangioma of the internal auditory canal and help to differentiate it from acoustic neuroma. Based on the histological findings of intratumoral bone formation, the hemangioma in our patient was classified as an ossifying hemangioma. However, reactive bone formation at the borders of a tumor in the internal auditory canal can also be mistaken as new intratumoral bone formation.

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“…[1][2][3][4][5][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][29][30][31][32][33][34][35][36][37][38][39][40] Cavernous hemangiomas of the IAC are thought to arise from the capillary plexus of the epineurium surrounding Scarpa's ganglion, 5 causing symptoms of intraneural vascular infiltration such as sensorineural hearing loss, tinnitus, dizziness, and facial nerve symptoms. Neuroimaging may show a small tumor in the IAC.…”

mentioning

confidence: 99%

Diagnosis and treatment of cavernous hemangioma of the internal auditory canal

Zhu

Huang

et al. 2016

JNS

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C avernous hemangiomas are rare vascular malformations of the central nervous system 26 that seldom occur in the internal auditory canal (IAC); only 50 cases have been reported. [1][2][3][4][5][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][29][30][31][32][33][34][35][36][37][38][39][40] Cavernous hemangiomas of the IAC are thought to arise from the capillary plexus of the epineurium surrounding Scarpa's ganglion, 5 causing symptoms of intraneural vascular infiltration such as sensorineural hearing loss, tinnitus, dizziness, and facial nerve symptoms. Neuroimaging may show a small tumor in the IAC. Although the clinical and radiological features of cavernous hemangiomas of the IAC can make it difficult to distinguish them from schwannomas arising from cranial nerves VII or VIII, preoperative recognition of IAC tumors is possible if the specific radiological findings and the relatively severe symptoms of cranial nerve dysfunction are considered in relation to the small tumor size. Early surgical intervention may increase the chance of improved facial nerve function. We describe the symptomatology, abbreviatioNs CPA = cerebellopontine angle; HB = House-Brackmann; IAC = internal auditory canal; VS = vestibular schwannoma.

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Vascular Lesions of the Internal Auditory Canal

Cited by 13 publications

References 22 publications

A case of unilateral sensorineural hearing loss caused by a venous malformation of the internal auditory canal

A case of unilateral sensorineural hearing loss caused by a venous malformation of the internal auditory canal

Knochenneubildungen in einer seltenen Raumforderung des inneren Gehörgangs

Diagnosis and treatment of cavernous hemangioma of the internal auditory canal

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