Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were obtained . Dual - lead left - sided pacemaker is again seen with leads unchanged in position . There are low lung volumes , which accentuate the bronchovascular markings . Left bibasilar atelectasis is seen . No clear focal consolidation . No large pleural effusion or pneumothorax . There is mild elevation of the right hemidiaphragm . The cardiac silhouette is top normal . The aorta is calcified and tortuous . Mild pulmonary vascular congestion is seen .
    OUTPUT:
    
Low lung volumes accentuate the bronchovascular markings . Minimal pulmonary vascular congestion . Mild elevation of the right hemidiaphragm . Bibasilar atelectasis .