Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no pulmonary edema or vascular congestion . Cardiomegaly is stable . There is a small left pleural effusion . There is bibasilar atelectasis . No pneumothorax is seen . The hilar and mediastinal silhouettes are unremarkable . Unchanged alignment of the sternal wires .
    OUTPUT:
    
No pulmonary edema .