CONGENITAL LARYNGEAL LESIONS - PATHOLOGY STUDY USING SERIAL MACROSECTIONS AND REVIEW OF THE LITERATURE

This description of congenital laryngeal lesions is presented with a f ocus on the information derived from the specimens collected for the L aryngeal Development Laboratory at the Children's Memorial Hospital in Chicago from 1975 to 1992. During this period, 115 laryngeal specimen s were obtained, 33 of which were found to have congenital laryngeal a nomalies. Two specimens are thought to have laryngomalacia; 4, thyroid cartilage anomalies; 1, absence of the epiglottis; and 29, cricoid ca rtilage deformities. Of the cricoid cartilage deformities, 1 had large anterior lamina; 1, generalized thickening; 8, elliptical shape; 4, f lattened shape; 8, occult cleft larynx; 1, partial cricoid cleft; 3, c omplete cricoid cleft; and 8, fragmented or distorted shape. Some spec imens have more than one type of anomaly.