perilymph fistula

Pathology

• fistula in the oval window or round window creating an abnormal passage between the middle ear & the vestibular apparatus

History

• history of straining or trauma

Clinical manifestations

• sudden onset of sensorineural hearing loss
• dizziness, vertigo, nystagmus

Diagnostic procedures

• pneumatic otoscopy with bulb insufflation may cause vertigo with nystagmus (Hennebert sign)

More general terms

• fistula
• ear disease

Additional terms

• perilymph (Cotunnius liquid)