Neuroma, Acoustic

**Definition:** A benign SCHWANNOMA of the eighth cranial nerve (VESTIBULOCOCHLEAR NERVE), mostly arising from the vestibular branch (VESTIBULAR NERVE) during the fifth or sixth decade of life. Clinical manifestations include HEARING LOSS; HEADACHE; VERTIGO; TINNITUS; and FACIAL PAIN. Bilateral acoustic neuromas are associated with NEUROFIBROMATOSIS 2. (From Adams et al., Principles of Neurology, 6th ed, p673)

**Tree numbers:** - C04.557.465.625.650.595.610 - C04.557.580.600.610.595.610 - C04.557.580.625.650.595.610 - C04.588.614.300.015 - C04.588.614.596.240.015 - C09.218.807.800.675 - C09.647.675 - C10.292.225.750 - C10.292.910.600

**Synonyms:** - Acoustic Neuroma - Schwannoma, Acoustic - Neurinoma, Acoustic - Neurilemoma, Acoustic - Schwannoma, Vestibular - Vestibular Schwannoma - Acoustic Tumor - Neurilemmoma, Acoustic - Neurinoma of the Acoustic Nerve