VENTRICULAR laryngocele, a term introduced by Virchow1 in 1867, has reference to an outpouching or cystic dilatation of the saccus, or appendix, of the ventricle of Morgagni. The saccus, or appendix, arises from the roof of the anterior end of the ventricle and ordinarily extends superiorly, or cephalward, to the superior border of the thyroid cartilage. It is a persistent or constant anatomic entity, although in man it does vary greatly in size, ranging from that of a minor dimpling to a stalklike tubular structure.
According to Lindsay's2 classification, a laryngocele has been found to develop in one of three ways:
The most common is said to be the internal laryngocele, a cystic dilatation appearing within the larynx, above the false cord, sometimes extending to the aryepiglottic fold or even to the base of the tongue. The cyst dilates on forced expiration and if large may produce obstruction.
O'KEEFE JJ. LARYNGOCELE. AMA Arch Otolaryngol. 1951;54(1):29–33. doi:10.1001/archotol.1951.03750070046002
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