نتایج جستجو برای: internal auditory canal tumors

تعداد نتایج: 505822  

Introduction: First branchial cleft anomalies manifest with duplication of the external auditory canal.   Case Report: This report features a rare case of microtia and congenital middle ear and canal cholesteatoma with first branchial fistula. External auditory canal stenosis was complicated by middle ear and external canal cholesteatoma, but branchial fistula, opening in the zygomatic root and...

Journal: :Journal of Evolution of Medical and Dental Sciences 2020

2015
Keisuke Yamamoto Noriko Ogasawara Nobuhiko Seki Nobuhiro Konno Hiroshi Tsubota Tetsuo Himi

BACKGROUND Benign vascular tumors are frequently found in the head and neck, however, such tumors of the external auditory canal are extremely rare. We report three cases of benign vascular tumors limited to the external auditory canal. CASE DESCRIPTION A 50-year-old woman was diagnosed during an episode of ear fullness and hearing loss. A 10-year-old boy consulted our department about an epi...

Journal: :Practica Oto-Rhino-Laryngologica 1974

2017
Luca Bruschini Annalisa Ciabotti Andrea De Vito Francesca Forli Christina Cambi Eugenio Maria Ciancia Stefano Berrettini

BACKGROUND Ceruminous glands are modified apocrine glands, situated in the external auditory canal, that, together with sebaceous glands, produce cerumen, better known as ear wax. The neoplastic transformation of these structures is very rare and there have been few cases reported in the literature. CASE REPORT Syringocystadenoma papilliferum is one of the rarest tumors among benign tumors aris...

2018
Amal Bennani Nassira Karich Imane Kamaoui Meryem Chraibi Sanaa Abbaoui

BACKGROUND Schwannomas 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 PRESENTATION In this report, we described a 22-year-old white man who pr...

Journal: :Neurosurgery cases and reviews 2022

Glioblastoma developed from cranial nerves are extremely rare. We report the case of a 71-year-old woman with glioblastoma arising both trigeminal root entry zones and Internal Auditory Canal (IAC) nerves.

Journal: :AJNR. American journal of neuroradiology 1991
J L Weissman M Arriaga H D Curtin B Hirsch

A 45-year-old man presented with slowly progressive left-sided hearing loss of 5 years duration. Examination revealed bilateral sensorineural hearing loss, more severe on the left, with poor speech discrimination on the left. Brainstem-evoked-response audiometry demonstrated borderline prolongation of interpeak latencies and poor early wave identification on the left side. A retrocochlear lesio...

Journal: :AJNR. American journal of neuroradiology 2001
K L Salzman H C Davidson H R Harnsberger C M Glastonbury R H Wiggins S Ellul C Shelton

BACKGROUND AND PURPOSE Benign tumors of the internal auditory canal (IAC) may leave the confines of the IAC fundus and extend into inner ear structures, forming a dumbbell-shaped lesion. It is important to differentiate dumbbell lesions, which include facial and vestibulocochlear schwannomas, from simple intracanalicular schwannomas, as surgical techniques and prognostic implications are affect...

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