A case of 'spontaneous otoacoustic emission'.
A 25-year-old man produced a continuous high-pitched pure tone (6.1 kHz, 37.2-dB sound pressure level) in his right ear. The tone was not audible to the patient. He had sensorineural deafness over 1 kHz with a dip of 45 dB at 6 kHz. The tone was considered to be emitted through the eardrum from the inner ear, ie, a "spontaneous otoacoustic emission".
Yamamoto
E
E
Department of Otolaryngology, Faculty of Medicine, Kyoto, Japan.
Takagi
A
A
Hirono
Y
Y
Yagi
N
N
D000328:Adult; D001299:Audiometry; D004424:Ear Canal / Q000503:physiopathology*; D006319:Hearing Loss, Sensorineural / Q000150:complications; D006801:Humans; D008297:Male; D013016:Sound; D013018:Sound Spectrography; D014432:Tympanic Membrane / Q000503:physiopathology*