Acoustic neuroma, also known as vestibular schwannoma, is a type of tumor that grows slowly and can have various effects on an individual’s hearing and balance. This tumor specifically develops on the primary vestibular nerve, which is located between the inner ear and the brain. Common symptoms of acoustic neuroma include hearing loss, ringing in the ear, and a significant impact on balance. The treatment options for this condition can range from regular monitoring by a healthcare professional to radiation therapy and, in some cases, surgery. Despite its impact on individuals, acoustic neuroma is considered a rare condition, affecting only 1 to 20 people per one million.
The Challenges of Diagnosing Acoustic Neuromas
Diagnosing acoustic neuromas can be challenging due to the slow-growing and benign nature of these tumors. It often takes years for symptoms to become noticeable, making it difficult for individuals to realize they require medical attention. Unlike malignant tumors, acoustic neuromas do not spread to other parts of the body. In some cases, the tumors are too small to cause any problems or symptoms. However, larger acoustic neuromas can interfere with the function of the vestibulocochlear nerve, leading to the development of various symptoms.
What Causes Acoustic Neuromas?
The cause of most acoustic neuromas remains unknown to medical experts. However, approximately 8 out of every 100 cases of acoustic neuromas can be attributed to a rare genetic disorder called neurofibromatosis type 2 (NF2). NF2 affects about 1 in every 25,000 individuals. People with NF2 carry a gene that leads to the development of tumors on both sides of the head. In some cases, these tumors can also grow on the spinal cord and the membranes surrounding the brain.