Prenatal sonographic diagnosis of partial left pulmonary artery sling: A rare case report

Abstract

Pulmonary artery sling is a rare congenital vascular anomaly. Partial anomalous left pulmonary artery is even rarer and no in utero observation has yet been reported. Here, we present the ultrasonographic findings of a 38‐year‐old woman at 32 weeks of gestation whose fetus showed a normal bifurcation of the pulmonary trunk into the right and left pulmonary arteries, but an anomalous origin of the left lower lobe pulmonary artery from the right pulmonary artery. These findings were confirmed by postnatal echocardiography and thoracic computed tomography.

Novel TrueVue series of 3D echocardiography: Revealing the pathological morphology of congenital heart disease

“…Rare pulmonary artery sling imaging has certain difficulties in 2D and traditional 3DE, usually need time-consuming and laborious to confirm the diagnosis through the 3D reconstruction of enhanced computed tomography (CT), and the children under examination are not easy to cooperate well ( Sezer et al, 2019 ; Xu et al, 2020 ). TrueVue Glass has an obvious advantage in the diagnosis of pulmonary artery sling, and it is the first time that an innovative 3D ultrasound technology has been used to diagnose such rare cardiovascular malformations.…”

Fetal Diagnosis of Dextroposition, Left Pulmonary Artery Sling, Partial Anomalous Left Pulmonary Artery, and Aortic Coarctation

“…8 A partial anomalous LPA, however, is a rare branching pattern where, in addition to the typical bifurcation of the RPA and LPA from the main pulmonary artery, a pulmonary artery branch arises from the RPA and supplies one or more lobes of the left lung. 9,10 Left pulmonary artery slings may be further classified into type I or type II, depending on the associated airway and lung anomalies. The type I phenotype typically has a normal tracheal bronchial tree, while type II has a more inferior origin of the LPA sling, inferior T-shaped carina, and association with tracheal stenosis from complete tracheal rings.…”

“…9 Furthermore, there is only one previous prenatal report of a partial anomalous LPA sling, and that patient had no other cardiac malformations. 10 This case is unique given the timing of fetal diagnosis, dextroposition used as an indicator of an LPA sling, and the presence of a partial anomalous LPA sling. The diagnosis of this partial anomalous LPA sling was confounded by the presence of an LPA branch anterior to the trachea and highlights the role of multimodal imaging in the diagnosis of complex cardiac anomalies.…”

Imaging of pulmonary artery sling: Prenatal and postnatal imaging findings

“…Clinically, most patients have symptoms of airway obstruction, and approximately 90% of cases are diagnosed within the first year of life, with the severity of symptoms closely related to the degree of tracheal stenosis 7 …”

“…6 Clinically, most patients have symptoms of airway obstruction, and approximately 90% of cases are diagnosed within the first year of life, with the severity of symptoms closely related to the degree of tracheal stenosis. 7 Early diagnosis and treatment of PAS are crucial to relieve airway compression. Prenatal ultrasound in detecting PAS is essential to understand pulmonary vascular development and identify other associated cardiac anomalies.…”