Pilonidal Sinus of External Auditory Canal: A Rare Entity

摘要

A 10year old boy presented with features of chronic otitis media of right ear with a red polypoidal mass in the right external auditory canal and with history of bleeding from the same ear. On examination a reddish polypoidal mass was seen arising from the antero-superior quadrant of external auditory canal near the bony-cartilaginous junction and filling the external auditory canal. CT scan showed a soft tissue mass filling the right external auditory canal suggestive of aural polyp. Under General Anaesthesia, the mass was found to be arising from antero-superior quadrant of external auditory canal and on removal of the mass normal tympanic membrane was seen. Histopathological examination of the specimen showed features suggestive of pilonidal sinus.