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August 1973

An Unusual Type of Tinnitus: Production of a High Tone by the Ear

Author Affiliations

Leiden, the Netherlands
From the Department of Otorhinolaryngology, University Hospital, Leiden, the Netherlands.

Arch Otolaryngol. 1973;98(2):134-136. doi:10.1001/archotol.1973.00780020140017

A report is given of a patient who produces a continuous high-pitched tone (3,400 hertz 10 Hz—35 dB sound pressure level) from her right ear.

The tone is not audible to the patient. She has a circumscribed sensorineural threshold dip with a maximum of 35 dB at 3,500 Hz. The sound appeared to be emitted by the ear drum and is probably a result of an anomaly of the venous system at the base of the skull near the ear.

The threshold dip at about the same frequency as the tone remains unexplained.

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