Positive perilymph fistula test with semicircular canal dehiscence from cholesteatoma

Online appendices

Appendix 1: Video (no sound)

Positive perilymph fistula test in a 54-year-old man with lateral semicircular canal dehiscence from cholesteatoma.

• Appendix 2: High-resolution computed tomography scan of the temporal bone of a 54-year-old man
• Appendix 3: Preoperative pure tone audiometry (PTA) showing mixed-type hearing loss of 104 dB in left ear and sensorineural hearing loss of 62 dB in right ear