[Congenital absence of stapes and fenestra vestibuli].
D002648:Child; D003638:Deafness / Q000601:surgery; D004429:Ear Ossicles / Q000002:abnormalities*; D004432:Ear, Middle / Q000002:abnormalities*; D006801:Humans; D014433:Tympanoplasty
Wrodzony brak strzemiaczka i okienka przedsionka.