Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lung volumes are very low , which is only slightly worsened since ___ . This accentuates the cardiac silhouette which appears stably enlarged . There is mild vascular congestion , but no overt pulmonary edema . The mediastinal contour is stable ; the pulmonary artery is enlarged . Patchy bilateral lower lobe opacities likely represent atelectasis . There is a small left pleural effusion . No pneumothorax is seen . There are clips in the left upper quadrant of the abdomen .
    OUTPUT:
    
Very low lung volumes have slightly decreased since ___ . Patchy bilateral lower lobe opacities most likely represent atelectasis . A small left pleural effusion is unchanged since ___ . Mild pulmonary vascular congestion is unchanged since ___ .