نتایج جستجو برای: internal auditory canal tumors
تعداد نتایج: 505822 فیلتر نتایج به سال:
Introduction: Different approaches have been developed to find the position of the internal auditory canal (IAC)in middle cranial fossa approach. A feasibility study was performed to investigate the combination of cone beam computed tomography (CBCT), optical coherence tomography (OCT), and laser ablation to assist a surgeon in a middle cranial fossa approach by outlining the internal auditory ...
A 26-year-old man was admitted to our clinic with approximately 8 years history of hearing loss on the right side. The pathological findings were not found in the neuro-otological examination. Severity sensorinoral hearing loss (SNHL) was determined on the pure tone audiometry. The magnetic resonance imaging (MRI) and computed tomography (CT) were shown that the lipomatous lesion involved right...
Duplication of the internal auditory canal is an uncommon, congenital malformation that can be associated with sensorineural hearing loss owing to aplasia/hypoplasia of the vestibulocochlear nerve. Only 14 such cases have been reported to date. We report the case of a 13-month-old girl with bilateral, congenital, sensorineural hearing loss caused by narrow, duplicated internal auditory canals a...
BACKGROUND Hemangiopericytomas (HPCs) are soft tissue tumors with histological variability and unpredictable clinical and biological behavior. HPCs in the head and neck are uncommon, the growth pattern is nonspecific; thus, diagnosis is often made by exclusion. METHODS A 43-year-old man complained of a short history of right ear pain associated with a growing mass in the right external audito...
Background and Objectives: Benign tumors of the external auditory canal (EAC) are rare among head and neck tumors. The aim of this study was to analyze the clinical features of patients who underwent surgery for an EAC mass confirmed as a benign lesion. Methods: This retrospective study involved 53 patients with external auditory tumors who received surgical treatment at Korea University, Guro ...
OBJECTIVES/HYPOTHESIS To review the presentation and management of improper electrode array placement, and to help guide clinical decision-making. STUDY DESIGN Retrospective case series. METHODS Pediatric and adult cochlear implant patients managed from January 2001 to present whose electrode arrays were not placed properly within the cochlea or extended beyond the cochlea into the internal...
BACKGROUND AND PURPOSE High-resolution imaging of the internal auditory canal and labyrinth at 1.5 T is often performed by using three-dimensional (3D) fast spin-echo or T2* techniques. We evaluated both techniques at 3 T in the preoperative assessment of patients being considered for cochlear implants. METHODS Sagittal 3D fast recovery fast spin-echo (FRFSE) and 3D constructive interference ...
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