Posterior semicircular canal fistula: An unusual complication of chronic destructive disease of the mastoid

This paper reports two cases of posterior semicircular canal fistula each managed by differing techniques and resulting in preservation of hearing. The key similarity between the two approaches is to leave handling of the fistula until all drilling has been completed. The positive result in both cases reinforces findings of previous studies that hearing is more likely to be preserved during management of labyrinthine fistula if treatment of the fistula is left until the end of the procedure.