What are acoustic tumors?
Published July 24, 2024 | 
An acoustic tumor involves the acoustic nerve that connects the inner ear to the brain. Because of its location at the base of the brain near the junction of the cerebellum and pons, an acoustic tumor is also called an “angle tumor.” Such tumors, a type of neuroma (nerve + tumor), are not malignant. They may occur as part of a problem of multiple neuromas (neurofibromatosis), but usually occur as an isolated problem. They are uncommon.
The diagnosis of acoustic neuroma may be difficult as the symptoms produced may not be considered serious. Commonly, the tumor interferes with conducting impulses from the part of the inner ear (cochlea) that detects sound. Insidious hearing loss in one ear may be the only early clue. The part of the nerve involved in the system controlling balance also may be affected, leading to dizziness. As the tumor gradually grows, it involves adjacent structures and may become a serious threat to vital areas of the brain stem.
Diagnosis is usually confirmed by either a CT or MRI scan of the head. Treatment involves surgical removal of the tumor.