Congenital cystic adenomatoid malformation of the lung resembling bronchiectasis in an adult

Congenital cystic adenomatoid malformation (CCAM) of the lung is a rare anomaly which is characterized by a proliferation of dilated bronchiolar-like air spaces. It is generally seen in newborns and infants. When seen in adults, which is more uncommon, it presents itself mostly with recurrent pulmonary infections. In this article, 31-year-old man with cough and purulent expectoration and a history of recurrent pulmonary infections who had cystic changes resembling bronchiectasis at the left lower lobe on the computed tomography of the chest and diagnosed CCAM-type 2 after the histopathological examination of the left lower lobectomy specimen is presented.