Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right costophrenic angle is excluded from the field of view . Exam is limited by lordotic positioning . Patient is status post median sternotomy . A left - sided pacer device is noted with leads terminating in the regions of the right atrium and right ventricle . Moderate enlargement of the cardiac silhouette is present . There is mild pulmonary vascular congestion . Patchy opacities the lung bases likely reflect areas of atelectasis , without focal consolidation . No large left pleural effusion is present . There is no pneumothorax . No acute osseous abnormality is seen .
    OUTPUT:
    
Slightly limited exam with bibasilar atelectasis and mild pulmonary vascular congestion .