An Unusual Finding During Exploratory Tympanotomy in a Case of Conductive Hearing Loss Mimicking Clinical Otosclerosis: A Case Series.

Conductive hearing loss with normal otoscopic findings has many differential diagnosis, but the diagnosis of otosclerosis is retrospective after exploratory tympanotomy. Congenital ossicular anomalies in isolation are rare and often have a delayed diagnosis, particularly if unilateral. Herein we present a rare case of stapes abnormality that was encountered as a surprise during exploratory tympanotomy in a case of conductive hearing loss mimicking clinical otosclerosis and was managed accordingly.