1. What are the treatment options for auditory neuroma? The first treatment strategy for auditory neuroma is surgery, and for those who are not suitable for surgery, stereotactic radiosurgery can be considered. (1) Surgery is the first treatment method, the aim is to strive for complete resection of the tumor, reduce the mortality and complications of surgery, and to supplement with stereotactic radiation therapy when incomplete resection is required. The common surgical approaches are posterior suboccipital sigmoid sinus approach and transvagal approach. For larger auditory neuroma, posterior occipital sigmoid sinus craniotomy is the most popular choice. The transvagal approach is mostly used for smaller tumors; the advantages include direct opening of the pontocerebellar peduncle, no pulling of the cerebellum, and clear identification of the anatomical location of the facial nerve at the base of the internal auditory canal; the disadvantage is that hearing cannot be preserved. (2) Stereotactic radiation therapy is mainly used for patients who are older, in poor physical condition or unwilling to undergo surgery; it is mainly applied to solid vestibular nerve sheath tumors with diameter <3 cm; tumor shrinkage usually begins to appear 6~8 months after treatment and peaks at 24~36 months; the main side effects are facial nerve and trigeminal nerve dysfunction. 2. What are the possible complications after auditory neuroma surgery? (1) The most common complication after auditory neuroma surgery is facial nerve dysfunction. Large auditory neuroma often has difficulty in preserving facial nerve function and is prone to facial palsy after surgery. For those who require high facial expression, they can be repaired in one stage or undergo facial-subglottic nerve and facial-paraneoplastic nerve anastomosis after 2~4 weeks. (2) Hearing loss or hearing loss Most large auditory neuromas have no available hearing before surgery. Although small auditory neuromas can be resected through a vagal approach, which can avoid direct opening of the pontocerebellar peduncle and does not involve the cerebellum, the main disadvantage is that hearing cannot be preserved. (3) Posterior group of cranial nerve symptoms such as dysphagia, hoarseness, choking and coughing with water. (4) Intracranial infection (5) Cerebrospinal fluid leak such as cerebrospinal fluid nasal leak, cerebrospinal fluid ear leak and wound leak. (6) Intracranial hematoma, cerebellar contusion