Auditory neuromas are the result of excessive proliferation of Schwann cells along the vestibular nerve with widely varying growth rates, and tumor cystic degeneration is an important factor affecting tumor growth. It is currently believed that cystic auditory neuromas have a different origin from solid auditory neuromas and have a low incidence. Most solid auditory neuromas occur in the inner auditory canal segment of the vestibular nerve, i.e., the non-glial segment; whereas cystic auditory neuromas often occur in the pontocerebellar fossa segment, i.e., the glial segment. Clinical symptoms: Compared with substantial auditory neuroma, cystic auditory neuroma is larger in size, has a shorter course, has atypical initial symptoms, and often involves the cranial nerve. Diagnosis and differential diagnosis: Cystic auditory neuroma needs to be differentiated from other CPA occupancies such as epithelioid cyst, arachnoid cyst, parasitic cyst, congenital cholesteatoma, and cystic meningioma. Treatment: Surgery is still the main treatment modality for cystic auditory neuroma, with a conventional posterior sigmoid sinus approach. It is generally believed that surgery for cystic auditory neuroma is easy to start and difficult to finish, especially to identify the facial nerve and preserve it, which is more difficult than for substantial auditory neuroma. Currently combined with endoscopy, it is a good adjunct to total excision of cystic auditory tumors.