Direct prelabyrinthine petrotomy and extended tympanomastoidectomy.
D007758:Ear, Inner; D004432:Ear, Middle / Q000601:surgery*; D006801:Humans; D008416:Mastoid / Q000601:surgery*; D019637:Orthopedic Procedures
EAR, MIDDLE/surgery; LABYRINTH; MASTOID/surgery