Guerrero-Paz JA, Vivar-Acevedo E, Waizel-Haiat S

Language: Spanish
References: 12
Page: 229-232
PDF size: 206.56 Kb.

ABSTRACT

Background: Osseous labyrinth malformations constitute 20% of the causes of congenital sensorineural hearing loss, various characteristics have been used to classify them. However, most of the information of internal auditory canal anomalies reported are about stenosis or absence of the internal auditory canal.
Clinical case: A 60-year old female patient with past medical history of left chronic otitis media with dehiscence of tegmen tympani in whim during study protocol a bilateral variant was reported in both internal auditory canals.
Conclusions: Within cochlear anatomical variants it has been reported its enlargement, stenosis, and aplasia. In this study, we report the case of an anatomical variant presenting without sensorineural hearing loss, withstanding the clinical conduct in face of it. The cystic dilation of our patient could be associated with internal auditory canal diverticula in the context of idiopathic intracranial hypertension due to the size of the internal auditory canal in conjunction with the tympanic tegmen dehiscence. Further anatomic studies need to be done to report the prevalence in our population.

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