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To the Editor.—I would like to briefly report an unusual symptom that occurred during the sojourn of a foreign body in the larynx that may be of interest from a clinical viewpoint, as well as from a vocal physiologic viewpoint. A 9- to 10-month-old infant, while playing on the floor, was noted to have a spell of coughing, following which her voice seemed different. On examination the voice sounded as if two children were crying at the same time, with both voices sounding clear but with a slightly different pitch. There was very little hoarseness and no symptoms of obstruction. A direct laryngoscopy was performed without anesthesia and a piece of clear plastic from a six-pack holder was found wedged longitudinally between the vocal cords, serving essentially as a third vocal cord. I suppose this symptom could properly be called diplophonia.
BENNETT T. Diplophonia? Arch Otolaryngol Head Neck Surg. 1989;115(2):248. doi:10.1001/archotol.1989.01860260122029
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