An unexpected difficult airway due to an undiagnosed congenital lingual thyroglossal duct cyst in a neonate with gastrointestinal symptoms: A case report

Lingual thyroglossal duct cysts can be a rare cause of feeding difficulties in infants. Here, we describe a case of an undiagnosed lingual thyroglossal duct cyst in an infant with vomiting and feeding difficulty, who underwent surgery for Hirschsprung’s disease and had an unexpected difficult airway during anesthesia induction.