气管发育不全(Tracheal agenesis,TA)是一种罕见的、致命性先天性畸形,表现为出生后立即出现严重的呼吸困难,病因尚不清楚,常合并其他系统畸形或羊水过多,成功治愈的报道很少,很多病例是在尸检后确诊的。因其发病率低,产前诊断时常被忽视,应引起广大产科医生及超声医生的注 Tracheal agenesis (TA) is a rare and fatal congenital malformation characterized by severe dyspnea immediately after birth. The etiology of the tracheal agenesis is unclear. It is often combined with other systemic malformations or polyhydramnios to be successfully healed Very few reports, many cases were confirmed after autopsy. Because of its low incidence, prenatal diagnosis is often overlooked, should be caused by the majority of obstetrician and ultrasound doctor’s note