Spontaneous resolution of a congenital multicystic lung lesion in a newborn

Congenital cystic adenomatous malformation (CCAM) is a rare developmental abnormality of the lung occurring in 1–35,000 live births. In most cases, the outcome of a fetus with CCAM is very good whereas in some cases, it can be life-threatening. It is usually discovered in neonates because of respiratory distress. Spontaneous resolution of CCAM has been reported as rare. We report a case of spontaneous resolution of CCAM in a 21-day-old-female baby with respiratory distress and chest X-ray suggestive of multicystic lesion of the left lung.