Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Triple lead left - sided pacer device is again seen with we stable in position . Since the prior study there has been development of right lower lung opacity worrisome for pleural effusion and overlying atelectasis as well as possible consolidation due to pneumonia . The posterior left costophrenic angle is also blunted , possibly due to a small pleural effusion . There is mild to moderate pulmonary vascular congestion . The cardiac silhouette remains mildly enlarged . The aorta is calcified as was seen previously .
    OUTPUT:
    
Right lower lobe opacity worrisome pleural effusion with overlying atelectasis with possible consolidation due to pneumonia . Possible trace left pleural effusion . Pulmonary vascular congestion .