The Major Causes of Acoustic Neuromawhich we should not ignore. In addition, aAcoustic Neuromais a type of non-cancerous (benign) brain tumor. It is also known as a vestibular schwannoma. A benign brain tumor is a growth in the brain that usually grows slowly over many years and has not spread to other parts of the body. aAcoustic Neuromagrow on the nerve used for hearing and balance, which can cause problems like hearing loss and insecurity. Sometimes they are serious if they become very large, but most are picked up and treated before they reach this stage. aAcoustic Neuromatend to affect adults from 30 to 60 years and usually have no obvious cause, although a small number of cases are the result of a genetic condition called neurofibromatosis type 2 (NF2).
Types of Acoustic Neuroma:There are two types ofAcoustic Neuroma:
Acoustic unilateral neuromas.This type affects only one ear. It is the most common type ofAcoustic NeuromaThis tumor can develop at any age. Most of the time it occurs between the ages of 30 and 60. O
- Bilateral acoustic neuromas.This type affects both ears and is inherited. It is caused by a genetic problem called neurofibromatosis-2 (NF2).
Causes of Acoustic Neuroma:The exact cause ofAcoustic Neuromais not clear. According to the American Hearing Research Foundation, about 95 percent of cases are sporadic, with no known cause. Risk factors appear to include:.
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- Advanced age- most people developAcoustic Neuromabetween the ages of 30 and 60 years.
- Family history of neurofibromatosis type 2- about 5 per cent of people withAcoustic Neuromaneurofibromatoses type 2 (NF-2), in which a person developsAcoustic Neuromain both auditory nerves.
- Radiation exposure- there is a small chance that exposure to low radiation to the head and neck during childhood may increase the risk.
Some studies have suggested that this may be related to cell phone use or long-term exposure to loud noise, but other research has not confirmed this.
Symptoms of Acoustic Neuroma:The main symptoms ofAcoustic Neuromainclude:.
- Loss of hearing on one side, can not hear high frequency sounds
- Feeling of fullness in the ear
- A touch on the ear (buzzing) on the side of the tumor
- Problems of balance or instability
- Facial numbness and tingling with possible, though rare, paralysis of a facial nerve
- Headaches, gait, and mental confusion.
Symptoms ofAcoustic Neuromaother conditions or health problems may appear. Always consult your doctor for a diagnosis..
Diagnosis of Acoustic Neuroma:As the symptomsinAcoustic Neuromaresemble other middle and inner ear conditions, may be difficult to diagnose. Preliminary diagnostic procedures include auditory examination and auditory testing. Computed tomography (CT) and magnetic resonance imaging (MRI) help determine the location and size of the tumor. Early diagnosis offers the best opportunity for successful treatment. Diagnosis involves:
- Hearing test (audiometry):a hearing test, which measures how well the patient hears sounds and speech, is usually the first test performed to diagnoseAcoustic Neuroma. The patient hears sounds and speech while wearing headphones connected to a machine that records the responses and measures the auditory function. The audiogram may show increased "pure tone average" (PTA), increased "speech reception threshold" (SRT), and decreased "speech discrimination" (SD).
- Auditory brainstem evoked response (BAER):This test is performed on some patients to provide information about brainwave activity in response to clicks or tones. The patient hears these sounds while using electrodes on the scalp and ear lobes and headphones. The electrodes pick up and record the brain's response to these sounds.
- If other tests show that the patient may haveAcoustic Neuroma, magnetic resonance imaging (MRI) is used to confirm the diagnosis. MRI uses magnetic fields and radio waves, rather than x-rays, and computers to create detailed images of the brain. It shows visual "slices" of the brain that can be combined to create a three-dimensional image of the tumor. A contrast tooth is injected into the patient. If oneAcoustic Neuromais present, the tumor will absorb more ink than normal brain tissue and will appear clearly in the scan. Magnetic resonance imaging usually shows a thickly "enhancer" (bright) tumor in the inner ear canal.
Acne Neuroma Treatments:aAcoustic Neuromacan be removed completely with surgery. However, many are so small that they may not need immediate treatment. Treatment forAcoustic Neuromadepends on the size of the tumor and the patient's age, general health and preferences, and may involve surgery, radio surgery and sometimes observation. Surgeons have developed various types of craniotomy to remove aAcoustic Neuroma. Surgical craniotomy may use a suboccipital, translaberin approach or median fossa approach..
- Lock-wound brain surgery (retro-sigmoid craniotomy)
- Translocrin craniotomy
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Surgery for larger tumors is complicated by probable damage to hearing, balance, and facial nerves. Another treatment option is radio surgery, which uses carefully focused radiation to reduce size or limit tumor growth. For patients withAcoustic Neuromasurgery and radiotherapy are equally effective. Doctors may also recommend radiation therapy to treat elderly patients.
- Radio surgery:Radiation surgery treatments can be simple or fractional (several smaller treatments instead of a large one). Fractional stereotactic radiography (FFT) seems to offer very high control rates with preservation of hearing and preservation of facial strength.
- Note:For an observation ofAcoustic Neuromaof slow growth with late treatment may be acceptable. This is a common treatment option for elderly patients or patients with mild symptoms where the risks of therapy may be greater and where the tumor may not grow over the life span.
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