A glottic web is a rare congenital malformation (1:10,000) that results from failure of epithelial layer resorption at the laryngotracheal groove leading to the formation of a membranous connection between the vocal folds (panel A, yellow arrow). Infants will frequently exhibit symptoms early in life, including stridor or an abnormal cry.

Before diagnosis, a glottic web may be missed during initial elective airway management if clinicians are unsuspecting. Typically, it appears as a blunting of the normally sharp angle between the vocal folds. This is illustrated in the comparison of panels A and B, where panel B demonstrates a more normal appearing glottis after repair of the web in panel A.

Because it shrinks the size of the glottic opening, a glottic web will make intubation difficult or in some cases impossible....

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