Prenatal Diagnosis of Aortopulmonary Window: A Rare Case Report.

Aortopulmonary window (APW) is a rare conotruncal cardiac anomaly that is rarely diagnosed prenatally. We report a case of APW identified by detailed fetal echocardiography and confirmed after birth, associated with esophageal atresia with distal tracheoesophageal fistula, duodenal atresia, and anal atresia. Prenatal imaging demonstrated an abnormal communication between the ascending aorta and the main pulmonary artery, allowing delivery planning at a tertiary center and early multidisciplinary management. This case highlights the importance of careful assessment of the great arteries during fetal echocardiography and the value of prenatal diagnosis for optimizing perinatal management.