Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate relatively low lung volumes , with mild bibasilar atelectasis . Low lung volumes accentuate the heart size , which is mildly enlarged , but stable compared to prior studies . There is no pneumothorax or pleural effusion . Mild pulmonary edema is present . A left chest wall dual - lead pacemaker / defibrillator is unchanged in position , with leads terminating in the right atrium and right ventricle . Mediastinal clips and intact median sternotomy wires are again noted .
    OUTPUT:
    
Mild pulmonary edema and stable mild cardiomegaly .