Be alert to intracranial tumors when you experience hearing changes or tinnitus!

Auditory neuroma is a common benign tumor in the pontocerebellar horn region. It progresses slowly and usually starts with hearing loss or tinnitus as the first symptom. Many people do not care about the hearing loss on one side, and sometimes the disease is often delayed, making treatment difficult. The tumor may also directly damage the bony vagus and produce similar symptoms, and if the median nerve and facial nerve are pushed, there will be pain in the ear, salivary gland and lacrimal gland. If the middle nerve and facial nerve are pushed, pain, alteration of salivary gland and lacrimal gland secretion, abnormal prelingual taste, hemifacial muscle spasm, muscle weakness or paralysis will occur; if the tumor develops in the direction of cerebellar pontine angle, it will firstly destroy the rock tip and its upper trigeminal ganglion, causing numbness of the affected side and loss of corneal radiation. If the tumor contacts and compresses the brainstem and cerebellum, it may cause spontaneous nystagmus and ataxia. If the tumor is too large, it may cause obstruction of peripheral venous return and cerebrospinal fluid circulation, which may increase intracranial pressure and lead to headache, nausea and vomiting. With the continuous progress of neurophysiological monitoring and the increasing level of microsurgery, surgical treatment is the most common treatment for auditory neuroma while preserving the function of the auditory nerve as much as possible. The Electrophysiology Center of the Armed Police Logistics College currently has advanced instruments and equipment that can escort the surgery in terms of intraoperative monitoring.