Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacemaker device with leads terminating in the right atrium and right right ventricle is again noted . Assessment of the cardiac silhouette size is difficult due to the presence of a large right pleural effusion , which has markedly increased compared to the prior study . A small left pleural effusion is also minimally increased compared to the prior exam . Bibasilar opacities likely reflect compressive atelectasis . There is no pulmonary edema or pneumothorax . Left apical pleural thickening is unchanged . Partially imaged is hardware within the left proximal humerus .
    OUTPUT:
    
Large right and small left pleural effusions with bibasilar atelectasis .