Abstract
Congenital pulmonary airway malformation is a rare hamartomatous lesion of the lung, which is mostly cystic and fatal. This malformation is the most common congenital lesion in the lung. This lesion is congenital; however prenatal ultrasound examination can assist in prenatal diagnosis. Here, we report autopsy of a 20-weeks fetus with congenital pulmonary airway malformation. This report includes macroscopic and microscopic findings as well.