Perilymphatic Fistula

**Definition:** An abnormal connection between inner ear and the surrounding structures, resulting in a leakage of the PERILYMPH. It is most common in a whiplash-type head trauma injury. Perilymph or labyrinthine fistulas may result in dizziness and/or intermittent hearing loss.

**Tree numbers:** - C09.218.568.900.608 - C23.300.575.594

**Synonyms:** - Labyrinthine Fistula - Perilymph Fistula