摘要: • Neonates with necrotizing tracheobronchitis present a diverse clinical spectrum from asymptomatic disease to severe airway obstruction. A retrospective clinicopathologic study of 206 neonatal autopsy reports spanning three-year period yielded 122 cases an incidence 59%. All patients received treatment prior the development high-frequency ventilator jet, oscillator, or interruption. The site and submucosal depth involvement was variable. most commonly affected anatomic middle thoracic trachea (56%). common cause identified ischemia mucosa submucosa, occurring profound birth asphyxia and/or shock. presence supports concept that decreased tracheoperfusion may be important factor in tracheobronchial abnormalities. ( AJDC 1988;142:1094-1098)