Bilateral Narrow Internal Auditory Canal With Duplication: High Resolution CT And MRI Findings

Inner ear malformations account for only 20 % of cases of congenital sensorineural hearing loss.A narrow internal auditory canal (IAC) with duplication is a very rare congenital anomaly that can be associated with other malformative ear abnormalities. Identification and characterization of these abnormalities will be crucial for the proper management of patients.We report two cases of bilateral duplicated internal auditory canal with other associated inner ear anomalies.