In December 1939, Erich and I1 reported on the treatment of a congenital laryngeal cyst in the case of a girl 17 years of age. The cyst was removed by means of lateral thyrotomy. Since that time, 2 additional cases of this type have been encountered at the Mayo Clinic.
Laryngeal cysts form 4.9 per cent of all laryngeal tumors. There are three types of laryngeal cysts, namely, mucous, hemorrhagic and congenital. Mucous cysts are caused by inflammatory obstruction of the ductal portion of a mucous gland. They are encountered most frequently in the vicinity of the epiglottis, where the mucous membrane contains abundant mucous glands.
The treatment of the mucous cyst and the hemorrhagic cyst is a matter of removing the tumor under suspension laryngoscopy. Surgical diathermy may be used if necessary. The treatment of the congenital laryngeal cyst depends on the size and extent. The Lynch suspension