Division of Pediatric Cardiology, Children's Hospital of Michigan, Detroit, MI, USA.
Department of Pediatrics, Central Michigan University College of Medicine, Mount Pleasant, MI, USA.
Echocardiography. 2021 Jul;38(7):1128-1130. doi: 10.1111/echo.15070. Epub 2021 May 16.
The echogenic mass in the pulmonary artery is a rare finding in newborns. Differential diagnoses include pulmonary artery thrombosis, ductal aneurysm, and malignant tumor. We report a newborn case who presented with mild desaturation and was found to have a large echogenic mass at the pulmonary bifurcation on echocardiography, which caused partial flow obstruction in the proximal left pulmonary artery. Along with the findings of cardiac computed tomography and magnetic resonance imaging, the diagnosis of ductus arteriosus aneurysm (DAA) was made. This DAA spontaneously regressed without any intervention at 4 months follow-up.
肺动脉内的高回声团块在新生儿中较为罕见。鉴别诊断包括肺动脉血栓、动脉导管瘤和恶性肿瘤。我们报告一例新生儿病例，其表现为轻度低氧血症，并在超声心动图上发现肺动脉分叉处有一个大的高回声团块，导致左肺动脉近端部分血流受阻。结合心脏计算机断层扫描和磁共振成像的结果，诊断为动脉导管瘤（DAA）。该 DAA 在 4 个月的随访中无需任何干预即自行消退。
