RT Book, Section A1 Skarsgard, Erik D. A2 Stevenson, David K. A2 Cohen, Ronald S. A2 Sunshine, Philip SR Print(0) ID 1109793468 T1 Cystic Lung Lesions T2 Neonatology: Clinical Practice and Procedures YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071763769 LK accesspediatrics.mhmedical.com/content.aspx?aid=1109793468 RD 2024/04/19 AB Congenital cystic lung disease covers a spectrum of lung malformations that include congenital cystic adenomatoid malformation (CCAM; which is also defined by the term congenital pulmonary airway malformation or CPAM), bronchopulmonary sequestration (BPS), congenital lobar emphysema (CLE), and bronchogenic cysts. The intricate process of lung development begins at about 4 weeks’ gestation and consists of 6 discrete phases: (1) the embryonic stage (4–7 weeks’ gestation); (2) the pseudoglandular stage (5–17 weeks’ gestation); (3) the canalicular stage (16- to 26-weeks’ gestation); (4) the saccular stage (24- to 38-weeks’ gestation); (5) the alveolar stage (36-weeks’ gestation to 2 years of age); and (6) microvascular maturation (birth to 2–3 years of age).1