title: Impedance audiometry: its use in the diagnosis of glomus tympanicum tumors.
abstract: Three cases of glomus tympanicum are presented. The audiological findings are discussed with special emphasis on the results of impedance audiometry. The use of impedance audiometry in the diagnosis and follow-up of glomus tympanicum tumors is suggested.
mesh_terms: D000158:Acoustic Impedance Tests / Q000295:instrumentation; D000368:Aged; D004428:Ear Neoplasms / Q000150:complications / Q000175:diagnosis*; D004432:Ear, Middle; D005260:Female; D005925:Glomus Jugulare Tumor / Q000150:complications / Q000175:diagnosis*; D034381:Hearing Loss / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010236:Paraganglioma, Extra-Adrenal / Q000175:diagnosis*; D014012:Tinnitus / Q000209:etiology