CASE REPORT Simultaneous Repair of Isolated Bilateral Congenital External Auditory Canal Atresia: Case Report and Review of the Literature

A 37-year-old female was admittedwith bilateral hearing loss since her childhood. On examination of the case with no other complaint, the EACs were short and closed conically. There was a conductive type of hearing loss at 50 dB in the right ear (air bone gap 40 dB) , and at 47 dB (air bone gap 37dB) in the left ear on the pure tone audiogram. On temporal bone CT, bilateral the EACs were observed to be obstructed with fibrous-osseous tissue density at the tympanic membrane level. Depending on the radiological findings, it received 9 points according to the Jahrsdoefer classification. Bilateral ear was operated simultaneously and the skinless part of the ear canal was grafted with the use of a split thickness skin graft. The case was followed-up one year. Otoscopic examination at the end of the first year was normal and air conduction threshold was 15 dB (air bone gap 7 dB) on the right, and 8 dB (no gap) on the left.