“…6 Congenital webs are rare, comprising less than 5% of all congenital anomalies of the larynx. 7 Severe congenital glottic webs are often associated with subglottic stenosis, 4,8,9 and sometimes, are associated with other congenital abnormalities, such as Fraser syndrome, fetal alcohol syndrome, cartilage hair hypoplasia, DiGeorge syndrome, CATCH22 syndrome, duodenal atresia, short-limbed dwarfism, and cardiac defects. [10][11][12][13][14] Acquired webs occur secondary to endotracheal intubation, laryngeal trauma, laryngeal surgery near the anterior commissure, radiotherapy, and rarely, inflammatory processes, such as tuberculosis or diphtheria.…”