Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi upright radiograph of the chest demonstrates low lung volumes resulting in bronchovascular crowding . Again seen are small bilateral pleural effusions with adjacent atelectasis . However , superimposed infection could be considered in the appropriate clinical setting . There is evidence of mild pulmonary vascular congestion . A pacemaker is in place with the leads in the expected position in the right atrium and right ventricle . The cardiomediastinal contour is slightly improved . There is no pneumothorax . A pericardial drain projects over the cardiac silhouette .
    OUTPUT:
    
1 . Small bilateral pleural effusions with adjacent atelectasis and pulmonary vascular congestion . 2 . A pacemaker is in place with leads in the expected positions in the right atrium and right ventricle . The cardiomediastinal contour is slightly improved .