RV Enlargement + Dilated Pulmonary Trunk + Increased Pulmonary Vascularity
These chest X rays show right ventricular enlargement, a dilated pulmonary trunk and increased pulmonary vascularity.
In this PA view, right ventricular enlargement is suggested by the minimally elevated cardiothoracic ratio in the presence of an upturned apex. The dilated pulmonary trunk is manifested by the convex density below the aortic knob. There is also prominence of the pulmonary arteries, particularly well seen as dilatation of the right pulmonary artery. Such dilatation is compatible with the increased blood flow as seen with a left-to-right shunt. Increased pulmonary vascularity is further reflected by prominent distal arterial vascular markings. In the lateral view with barium swallow, right ventricular enlargement is manifested by obliteration of the retrosternal air space. The pulmonary arteries are large.
In this PA view, right ventricular enlargement is suggested by the minimally elevated cardiothoracic ratio in the presence of an upturned apex. The dilated pulmonary trunk is manifested by the convex density below the aortic knob. There is also prominence of the pulmonary arteries, particularly well seen as dilatation of the right pulmonary artery. Such dilatation is compatible with the increased blood flow as seen with a left-to-right shunt. Increased pulmonary vascularity is further reflected by prominent distal arterial vascular markings. In the lateral view with barium swallow, right ventricular enlargement is manifested by obliteration of the retrosternal air space. The pulmonary arteries are large.