Subglottic hemangiomas in infants.

Subglottic hemangioma, a lesion absent at birth and developing in the first few months of life, may present as an acute airway obstruction. Definitive diagnosis may be delayed or confused with other conditions. Recent experience with infants presenting with subglottic hemangioma lead to the proposal of delayed laser surgical intervention until age nine months, at which time natural involution begins. Five cases are reviewed to illustrate this contention.