Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright portable radiograph of the chest demonstrates a mildly enlarged heart with mild pulmonary edema and mild bibasilar atelectasis . There is no pneumothorax or pleural effusion . There is a cardiac pacemaker in place , unchanged in position . There are numerous mediastinal surgical clips as well as sternal cerclage wires in place .
    OUTPUT:
    
Mild pulmonary edema , mild cardiomegaly , mild bibasilar atelectasis .