Table 1. Demographics and clinical characteristics of the four children with tracheal bronchus and three children with congenital subglottic stenosis, diagnosed during rigid bronchoscopy for suspected or confirmed food choking or foreign body aspiration.

TB: tracheal bronchus, CSS: congenital subglottic stenosis, RTI: Respiratory tract infection, PDA: patent ductus arteriosus, AV: Atrioventricular, FC: food choking.