PURPOSE To define the anatomy of the facial and vestibulocochlear nerves in the internal auditory canal on parasagittal CT scans of cadaveric specimens and to compare this anatomy with findings on in vivo T2-weighted two-dimensional fast spin-echo and three-dimensional turbo spin-echo MR images. METHODS Thirty-eight formalin-fixed cadaveric temporal bones were examined with 1-mm-thick contigu...

OBJECTIVE We sought to assess the complication rates following cochlear implantation in canal wall down mastoid cavities in adults and children. DATA SOURCES A systematic review of English articles from PubMed, Web of Science, EMBASE, and the Cochrane Library. Additional studies were identified by reviewing the reference lists of the originally identified studies. REVIEW METHODS Studies wer...

Background Exostoses of the internal auditory canal is a rare finding that may present with disabling symptoms of dizziness, hearing loss, and vestibular dysfunction based on the extent of cranial nerve compression. The purpose of this case report is to discuss the presentation and outcomes in a patient who presented with this disorder. Case Description A 19-year-old female presented to the n...

Temporal bone histopathological findings of two patients with trisomy 18 syndrome are described. Many of the abnormalities previously described were seen in the present cases; namely, atresia of the external auditory canal, aberrant course of the tensor tympani muscle, malformed stapes, aberrant course of the facial nerve with an obtuse angulation at the first genu and displacement of geniculat...

the authors used high-resolution computed tomography (hrct) for studying 52 congenitally malformed ears in 45 children between five and 10 years of age. in six children the malformations were bilateral. the malformations clinically manifested as microtia, atresia of the external auditory canal and conductive deafness. analyzing anatomical details and pathological changes on hrct axial sections ...

BACKGROUND AND PURPOSE The increased cochlear signal on FLAIR images in patients with acoustic neuroma is explained by an increased concentration of protein in the perilymphatic space. However, there is still debate whether there is a correlation between the increased cochlear FLAIR signal and the degree of hearing disturbance in patients with acoustic neuroma. Our aim was to investigate the cl...

391 External auditory canal cholesteatoma is an uncommon disease that is characterized by desquamating tissue and bone erosion in older patients. The lesion could start after a microtrauma in the canal, with consequent squamous epithelium proliferation and periostitis. Another possibility is the loss of the skin migration property, which causes retainment of desquamated cells. It is often assoc...

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.

introduction otomycosis is a common infection of the external ear that is seen in the tropical and subtropical areas of the world. we performed mycologic analysis by obtaining samples from the external auditory canal in patients clinically diagnosed with otomycosis. methods 174 patients with clinical suspicion of otomycosis referred to the otolaryngology clinic of al-zahra and kashani hospitals...

Objective: To characterize the thresholds of the auditory steady-state response that relates to term newborns and infants. Design: The study was cross-sectional using auditory steadystate response assessment, and the real-ear-to-dial difference was measured in the external auditory canal. Study Sample: The study group included 60 newborns and infants between the age of 0 and 6 months. Results: ...