Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is unchanged . Pacemaker leads are stable in position . Calcifications are present in the aortic arch as before . The lungs are notable for nonspecific streaky bibasilar opacities , new compared to the prior examination . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
New streaky bibasilar opacities are nonspecific and may represent atelectasis , aspiration , or less likely pneumonia .