Acoustic neuroma arises from which cranial nerve?: (A) Inferior division of vestibular nerve, (B) Superior division of vestibular nerve, (C) Cochlear nerve, (D) Facial nerve
Answer is B. Vestibular schwannomas arise predominantly from the superior half of the vestibular poion of the vestibulocochlear nerve (cranial nerve VIII). Vestibular schwannomas may be treated with microsurgical resection or conformal SRS (gamma knife or linear accelerator technology).