• Miao Huang and Yun-Hui Gong.
• Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan Province, China.
• Medicine (Baltimore). 2023 Nov 24; 102 (47): e36249e36249.

RationaleCongenital pulmonary airway malformation (CPAM) is a rare congenital dysplastic malformation and accounts for 25% of congenital lung lesions. Commonly, it is diagnosed prenatally in ultrasound. The CPAM volume ratio (CVR) is a well-recognized predictor of fetal prognosis, and when the CVR is >1.6 cm2, the fetus is very likely to develop hydrops and even intrauterine deaths. However, the association of CVR with a wide range of complications and neonatal prognosis is unclear.Patient ConcernsCystic lesions in the right thorax of the fetus detected by ultrasound at 19 weeks of gestation, with a CVR of 0.88 cm2. The CVR grew progressively with increasing gestational weeks, reaching a maximum of 5.2 cm2 at 35 gestational weeks. However, there were no complications with the fetus other than polyhydramnios.DiagnosisImaging and pathological findings confirmed the diagnosis of CPAM.InterventionsDuring pregnancy, a multidisciplinary team was involved in the management and the prenatal visits increased to weekly from 31 weeks of gestation. During the cesarean section, neonatologists and pediatric surgeons were present for timely evaluation of newborns. The neonate was admitted to the neonatal intensive care unit for monitoring immediately after birth and underwent thoracoscopic right lower lobectomy at 57th days old.OutcomesThe neonate recovered without any respiratory symptoms and no abnormality on chest computed tomography (CT) at the 3-month postoperative follow-up.LessonsDuring pregnancy, in addition to monitoring CVR, a multidisciplinary team should join in the management of CPAM patients. And as for the fetus with increased CVR, a closely monitoring after birth is necessary even if the general condition of the pregnancy is well. In particular, timely intervention should be made at the onset of respiratory symptoms.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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