A thyroglossal duct cyst causing apnea and cyanosis in a neonate.

This is a case of a 3-week-old male who presented to the emergency department with intermittent apnea and cyanosis. While in the emergency department, he had respiratory compromise with stress and required intubation. Further evaluation confirmed the diagnosis of a thyroglossal duct cyst. Congenital lesions causing extrinsic airway compression should be considered in all neonates with apnea, cyanosis, and respiratory compromise. Knowledge of pediatric airway anatomy and physiology is important in all cases where obstructive apnea is suspected.