Methods:The 13 cases of congenital pulmonary agenesis and hypoplasia were veritfied by bronchcscopy and operation or pathology the characteristics of the X-ray,CT and bronchography were analysed.

• 方法：对13例先天性肺不发育和发育不良经支气管镜检、手术或病理证实的X线平片、CT扫描、支气管造影分析其影像学表现。