In infantile<unk> , the supraglottic larynx (the part above the vocal cords) is tightly curled, with a short band holding the cartilage shield in the front (the epiglottis) tightly to the mobile cartilage in the back of the larynx (the arytenoids). These bands are known as the aryepiglottic folds. The shortened aryepiglottic folds cause the epiglottis to be curled on itself. This is the well known "omega shaped" epiglottis in<unk> . Another common finding of<unk>  involves the posterior or back part of the larynx, where the arytenoid cartilages or the mucosa/tissue over the arytenoid cartilages can collapse into the airway and cause airway obstruction.<unk>  results in partial airway obstruction, most commonly causing a characteristic high-pitched squeaking noise on inhalation (inspiratory stridor). Some infants have feeding difficulties related to this problem. Rarely, children will have significant life-threatening airway obstruction. The vast majority, however, will only have stridor without other more serious symptoms such as dyspnea (difficulty breathing).
Laryngomalacia
Tracheobronchomalacia
Laryngotracheal stenosis
Tracheomalacia
Subglottic stenosis
Nasal septum deviation
Glossoptosis
Epiglottitis