The topic Acoustic Neurilemoma you are seeking is a synonym, or alternative name, or is closely related to the medical condition Vestibular Schwannoma.

Quick Summary:

• Schwannomas are benign tumors that arise from the Schwann cells around the nerves; these tumors are nerve sheath tumors. In a majority of cases, these tumors are solitary. The tumors can occur in the peripheral nerves (arms and legs) and the spinal nerves; intracranial tumors occur in the head
• In the head and neck region, schwannomas typically involve the 8th cranial nerve (specifically the vestibular division of the 8th cranial nerve). Vestibular Schwannomas can affect either one (unilateral) or both (bilateral) sides of the vestibular cranial nerve. When bilateral, it often indicates the presence of neurofibromatosis type 2 (NF2)
• Currently, no causative factors have been identified for Vestibular Schwannoma. The risk factors for the tumor include the presence of NF2 and a positive family history of schwannoma
• Vestibular Schwannomas may be symptomatic or asymptomatic. However, these tumors can cause a host of symptoms including hearing loss and ringing within the ears. Since the tumors affect the ears and their function, these tumors are also known as Acoustic Neuromas
• In rare cases, schwannomas are known to develop into malignant tumors. The tumors can also compress the nerve on which it lies and cause nerve dysfunction
• In a majority of cases, a complete excision by surgery can be curative and the prognosis of Vestibular Schwannoma is excellent. However, the influencing factors include the type of the tumor (whether unilateral or bilateral) and the presence of NF2

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