Congenital absence of the oval window.
D000015:Abnormalities, Multiple; D000293:Adolescent; D000328:Adult; D001299:Audiometry; D002648:Child; D004429:Ear Ossicles / Q000002:abnormalities; D007758:Ear, Inner / Q000002:abnormalities; D004432:Ear, Middle / Q000002:abnormalities* / Q000601:surgery; D005154:Facial Nerve / Q000002:abnormalities; D005260:Female; D005500:Follow-Up Studies; D006309:Hearing; D006311:Hearing Disorders / Q000601:surgery*; D006801:Humans; D008297:Male; D019736:Prostheses and Implants