Double pitch [intlink id=”427″ type=”post”]phonation[/intlink]. Often seen with [intlink id=”641″ type=”post”]vocal fold paralysis[/intlink], and in submucosal disorders such as [intlink id=”169″ type=”post”]epidermoid cyst[/intlink] and [intlink id=”194″ type=”post”]glottic sulcus[/intlink]. Except for a type of [intlink id=”332″ type=”post”]luffing[/intlink] diplophonia that may be functionally produced, diplophonia tends to be a pathologic vocal phenomenon.

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