Acoustic neuroma

Overview acoustic neuroma is originated from the auditory nerve sheath tumors, intracranial neuroma is the largest to see a, intracranial tumors accounted for 7% -12%, accounting for cerebellopontine angle tumors of 80 -95%. Clinical in the cerebellopontine angle syndrome and intracranial hypertension levy for the main performance. Is benign, early diagnosis and early treatment efficiency, and greater tumor intracranial hypertension combined surgery is the only way out. Etiopathologic unclear etiology and pathogenesis. Possible incentives : genetic factors, the physical and chemical factors and biological factors. A symptom. Tinnitus, or paroxysmal vertigo, hearing the side of the sexual receded to deafness. 2. Choking cough, hoarseness, and gag reflex disappear or diminish the ipsilateral corneal reflex diminish or disappear, facial paralysis. 3. Walk instability, tremor eyeball level, the total economic motor dysfunction. 4. Headache, vomiting, palilledema. An inspection. In the first symptom of tinnitus, the sexual side of hearing loss to deafness. 2. Typical cerebellopontine angle syndrome : acoustic neuromas, facial nerve, the trigeminal nerve, and after cranial nerve obstacles, cerebellum and brainstem compression damage, and other symptoms and signs. 3. Chronic levy increased intracranial pressure : headache, vomiting, palilledema. 4. Skull X-ray internal auditory canal is said to expand the internal auditory canal and rock ridge damage. Head computer tomography (CT) in the cerebellopontine angle areas or low-density source of the disease and obstructive hydrocephalus. enhanced scan source of strengthening. Cranial magnetic resonance imaging (MRI) showed cerebellopontine angle T1-weighted images showed low signal or other signal, T2-weighted images showed high signal-bit for enhanced scan sources are remarkably enhanced. 5. Cerebral angiography is invasive inspection, positioning qualitative rate less than the head computed tomography or magnetic resonance imaging. But to understand tumor blood supply and embolization, reduce bleeding. 6. Diagnosis clearly required surgery, mainly to the basic checks. An inspection. Surgical treatment. 2. Stereotactic radiotherapy (γ-knife, X-knife) : No increased intracranial pressure, tumor diameter "3cm may consider, larger tumors were also first partial resection and / or ventricular shunt to alleviate intracranial hypertension later γ-knife, X-knife treatment. 3. Prevent infection, nutrition and treatment of nerve complications. (1) drugs on the tumor itself no magic. (2) to rectify the brain edema, intracranial pressure lowering to 20% mannitol, furosemide, dexamethasone-based medicine If necessary, the use of human blood albumin. (3) Note electrolyte and fluid balance, intraoperative blood loss added. (4), as appropriate, after the use of antibiotics to prevent infection, combined drugs; The use of neurotrophic drug rehabilitation for brain cells. (5) symptomatic treatment, complications against complications.