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Updated: Aug 17, 2025
Murine Fetal Echocardiography
Published on: February 15, 2013
Type II Left Pulmonary Artery Sling Associated with Double-Outlet Right Ventricle Diagnosed by Fetal Echocardiography
Dan Zhou1, Longmei Yao1, Yushan Liu1
1Department of Ultrasound Diagnosis, The Second Xiangya Hospital of Central South University, Changsha, China.
Introduction:
Left pulmonary artery sling (LPAS) is a rare congenital vascular anomaly which can be isolated or associated with other malformations. Patients with LPAS usually have symptoms of airway obstruction.
Case Presentation:
We present a case of LPAS with double-outlet right ventricle diagnosed by fetal echocardiography at 33 weeks' gestation. Postnatal computed tomography echocardiography confirmed the diagnosis. Additional bronchial bridge and left main bronchial stenosis found by computed tomography led to a diagnosis of type II LPAS.
Conclusion:
It is crucial to trace pulmonary artery branches in the prenatal diagnosis. Prenatal diagnosis of LPAS will facilitate postnatal care and timely treatment.
