An unusual cause of infant's stridor - congenital laryngocele.

Congenital laryngocele is an uncommon cause of neonatal stridor. There are only a few cases reported in the literature. The authors present a successfully treated case of an infant, whose life could only be saved by urgent tracheostomy. On the 5th postoperative day endoscopic excision and marsupialization provided patent airway. The patient could be decannulated. During follow-up no recurrence was observed.