An 800 gm female baby born at 26 weeks gestation, and thus receiving respiratory support, developed pneumothorax, pneumomediastinum and pneumoretroperitoneum on the 12th day of life.

• 著者等报告一25周的早产儿，体重800克；住院接受呼吸治疗。在第12天的胸部照相发现有肺间质积气，气胸和后腹腔积气；