Infra-auricular Sinus: A Very Rare Case Presentation.

A 22-year-old male patient presented with right infra-auricular sinus since birth with preauricular swelling and discharge on and off since age of 3 years. He had no history of previous surgery. Patient noted frequent swelling and foul smelling discharge inferior to right tragus through a small puncta every 3-6 monthly, resulting in abscess formation and scaring around 1-1.5 cms below and anterior to puncta site. The infra tragal sinus tract and the cyst were completely removed surgically by infra-auricular approach. The histopathology report was suggestive of an infra-auricular preauricular sinus. No recurrence was noted on follow up to 2 years. We report this case for its rarity since less than 5 cases have been reported in literature. © Association of Otolaryngologists of India 2019.