case_images: PMC10874499_01
case_images: Pulmonary arteriovenous malformations in fetal echocardiogram.. Fetal echocardiogram significantly increased cardiothoracic circumference ratio and biventricular hypertrophy (A), left to right shunting through the ductus arteriosus (B, arrow), enlarged left pulmonary vein (C, asterisk), and vascular malformations in the juxtaposed left lung (C and D, arrows).
case_images: cureus-0016-00000052549-i01.jpg
case_images: PMC10874499_01_cureus-0016-00000052549-i01.jpg
case_images: FIG1
case_images: A fetal echocardiogram confirmed cardiomegaly (Figure 1A) and severe left pulmonary artery and veins dilation (Figure 1B) secondary to a large AVM located in the lower left lung (Figure 1C). The hemodynamic impact of the shunt was also evident by the presence of reversed flow through the ductus arteriosus (Figure 1D).
case_images: Pulmonary arteriovenous malformation fetal macroscopic anatomopathological study.. Macroscopic image showing hypervascularized lower left lung (A) and cross-section of the left lung showing enlarged subpleural vascular structures (B).
case_images: cureus-0016-00000052549-i02.jpg
case_images: PMC10874499_01_cureus-0016-00000052549-i02.jpg
case_images: FIG2
case_images: The autopsy showed left lower lobe vascular congestion and dilated vessels (left pulmonary artery, left inferior vein, and intra-pulmonary branches) and confirmed the cardiomegaly (Figure 2).
case_images: Fetal arteriovenous malformation microscopic anatomopathological study.. Microscopic features of the left lobe with large and contoured arteries (A, arrow) and veins (B, arrow) in proximity to the pleural surface.
case_images: cureus-0016-00000052549-i03.jpg
case_images: PMC10874499_01_cureus-0016-00000052549-i03.jpg
case_images: FIG3
case_images: These vessels were also displaced in proximity to the pleural surface (Figure 3).