Congenital atresia of the external auditory canal is always an interesting problem in diagnosis and treatment. A recent case exhibiting unusual features is the stimulus for this presentation.
In order that the rather unique features which were presented in our case may be explained, a brief review of the normal development and anomalies of the external and middle ear will be discussed. This will be followed by consideration of the somewhat controversial clinical problem of the indications for surgical treatment. Finally, a case of congenital atresia is reported, with recurrent cervical abscesses over a period of many years, which was cured by operative treatment.
EMBRYOLOGY OF THE DEVELOPMENT OF THE EAR
The development of the ear is best considered in two parts: first, the internal ear, and second, the middle and external ear.
For the first, the ectodermal auditory placode which gives rise to the inner ear forms
IRELAND PE, BRYCE DP. Cervical Fistula Associated with Unilateral Congenital Aural Atresia. AMA Arch Otolaryngol. 1955;62(3):262–265. doi:10.1001/archotol.1955.03830030028004
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