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Radiology Forum
July 1999

Quiz Case 2

Author Affiliations


Arch Otolaryngol Head Neck Surg. 1999;125(7):815. doi:

In 1978, Valvassori and Clemis1 introduced the term LVAS, which was used to describe 50 patients with enlarged vestibular aqueducts, hearing loss, and vestibular symptoms. The incidence of this disorder has been estimated to range from 1% to 1.5%, with a slight female predominance, and 59% to 94% of the afflicted patients present with bilateral symptoms.13

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