Compared to AMB, lamellar messenger ribonucleic acid (mRNA) concentrations of CXCL6 (P =.02), CXCL8 (P = .008), IL‐6 (P = .008), IL‐1β (P = .008), IL‐11 (P = .008), and cyclooxygenase‐2 (P = .008) were decreased in CDH. Here, CXCL6 is linked to congenital diaphragmatic hernia.