Aplasia of the lung in a neonate--the myth is explored.

A term appropriate for gestational age baby boy was delivered by lower segment caesarean section. The baby was antenatally diagnosed with resolving cystic adenomatoid malformation. At birth, he developed respiratory distress requiring active resuscitation and later was diagnosed to have right lung aplasia, managed with respiratory support. He gradually improved and was discharged home on room air. 2015 BMJ Publishing Group Ltd.