[Otogenic (labyrinthine) vertigo--when the ear fails to keep us in equilibrium].
ABSTRACT The peripheral vestibular organ within the bony labyrinth of the inner ear is closely connected to the other parts of the equilibrium system. As a result of its constant active interaction with the other elements, it plays a major role in ensuring that we can maintain our balance. In the event of a disorder, otogenic vertigo can occur. Important evidence of a peripheral-vestibular disturbance is provided by the patient's history of dizziness, and confirmation of the suspected diagnosis is achieved by clinical and other appropriate examinations and tests. Common differential diagnoses include benign paroxysmal positional vertigo, Ménière's disease, and vestibular neuropathy. These can be readily differentiated by applying a systematic approach, and usually respond to treatment. In recent years, improved diagnostic tools have made it possible to test the functioning of the otolith organs, and this may lead to new therapeutic options in labyrinthine vertigo in the future.