Presentation and surgical treatment of congenital pulmonary airway malformation in an adult

Congenital pulmonary airway malformation (CPAM) is a congenital lung disease that is usually diagnosed in the prenatal or neonatal period but is rarely seen in adults as well. In this report, we present a 26‑year‑old male patient who presented to our clinic with respiratory difficulty due to a CPAM that affected the entire right lung, caused mediastinal and diaphragmatic compression, and led to extensive diffuse hemorrhage from the adjacent structures that required massive transfusion.