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A misdiagnosis: duplication of the external auditory canal

¹Department of Otorhinolaryngology, Ankara Numune Education and Research Hospital, Turkey; ²Department of Radiology, Ankara Numune Education and Research Hospital, Turkey; ³Department of Pathology, Gazi University Hospital, Ankara, Turkey

*Correspondence to: Maresal Fevzi Cakmak cad. 64/A, Bahcelievler-Cankaya, 06500 Ankara, Turkey. E-mail: gulhatip{at}yahoo.com

Received 21 October 2007; revised 2 March 2008; accepted 6 March 2008

We present imaging and clinical findings of a case with a duplicated external auditory canal, which led to misdiagnosis secondary to lipomatous content on imaging studies prior to surgery. It is a very rare congenital anomaly. This entity is usually misdiagnosed not only clinically but also radiologically. This leads to a delay and failure in diagnosis and treatment. To the best of our knowledge, herein is the first case report of the duplication of the external auditory canal presenting with dominant lipomatous imaging features. In this report, we aim to draw attention to the atypical presentation.

Keywords: duplicated external auditory canal; branchial cleft cyst; computed tomography; magnetic resonance imaging