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acoustical neuroma is an intracranial tumor arising from the vestibular part of VIII cranial brass love as vestibulocochlear nerve . It is a cranial nerve rise from the ventral part of the pons and contains fibers uprise from six nucleus of the head . These nuclei include four vestibular nucleus namely , medial , sidelong , ventral and dorsal vestibular nucleus and two cochlear core namely , anterior and later cochlear nucleus .
How Do You Get An Acoustic Neuroma?
There are not much specific causative factors known for the origin of acoustic neuroma . The most rough-cut cause relatable to acoustic neuroma is idiopathic . Only one environmental factor with classic association be intimate with an acoustic neuroma is radiation exposure only . radiotherapy vulnerability can happen from harmful ultraviolet and other radiation in the sunshine as well as from iatrogenic causes like photograph toX - raysin various consistency investigations , picture to radiotherapy for other cancers , etc .
Another factor which is is strongly associated with an acoustical neuroma is genetic syndromic disorder known as neurofibromatosis . It is classified as character 1 and type 2 . Although both type can be associated with acoustic neuroma 2 has a more solid relationship with it than type 1 . Also , it is generally associated with two-sided acoustic neuroma organization rather than unilateral case as seen in other causes .
In late meter , mobile phoneswere suspect to be one of the factors associated with increased incidence and preponderance of acoustic neuroma in the 21st 100 . But the researches on-going on it have show results otherwise . Various studies have not found any relation between the usage of mobile phones and the increased incidence of acoustic neuroma .
Can Acoustic Neuroma Be Cured?
It is a slow - get , nonmalignant , rarefied tumor with small sizing occurring in inner acoustic meatus or at a cerebellopontine slant in the posterior cranial fossa of the skull . It rarely becomes symptomatic and even more rarely requires treatment . The prognosis and the cure charge per unit of the neoplasm are very high in unilateral cases but it can be slenderly more difficult in bilateral cases .
Even if it requires treatment , the tumor is curable in most cases . operative treatment has testify , the very good success rate in the complete excreting of the tumor . Medical treatment is not much preferred because of limited achiever . With the invention of upright anaesthetic techniques , surgical treatment has become much good .
today , with the Parousia of novel technologies in the medical athletic field , a newer treatment based on radiotherapy has prove well in the treatment of acoustical neuroma , it is known as stereotactic radiotherapy[1 ] . In this treatment , the tumor is on the nose situate with the help of nous mental imagery technique likecomputed imaging , magnetic resonance imaging , etc . and the dosage of irradiation is figure based upon the size and extent of the tumor . Then the tumor location is marked with the help of a laser and rank amount of reckon dose is given with gamey precision to the tumour . Usually , it requires only one round of golf of it but multiple rounds of the radiotherapy can be ease up in large tumors . In showcase of nonstarter of stereotactic radiotherapy , the patient can select for surgical handling which has a high rate of achiever .
Conclusion
There are not many suit know which are instantly responsible for acoustical neuroma geological formation in the brain . Neurofibromatosis character 2 is the only really known causal agent for it . Till now the prevalence of the tumor is not very gamy but various retrospective case - command studies and their analysis are being done for list the crusade and their preventive touchstone to control the rising relative incidence of acoustic neuroma .
The tumor has bring forth a mellow remedy rate and effective prognosis with positive resolution of the surgical operation organize for the same . Now the treatment of humble acoustic neuromas is possible with the radiotherapy and without being invasive for the patient role . Robotic enjoyment helps to delimit the tumour area with gamey precision . But it is equally of import for the patient role to cover to the physician in causa of any suspicious symptoms .
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