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A mucus retention cyst is a type of cyst that forms on the vocal cord when one of the mucus glands just below the free margin of the vocal cords becomes plugged, trapping the mucus secreted by that gland. A common symptom is hoarseness. Whereas many other vocal cord lesions arise from vocal overuse, mucus retention cysts seem to arise spontaneously, without any necessary correlation to how the voice is used.
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