Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs of the chest demonstrate pulmonary and mediastinal vascular engorgement and interval improvement in mild pulmonary edema . Heart size is unchanged . There is no pneumothorax or pleural effusion . Bibasilar atelectasis persists .
    OUTPUT:
    
Findings suggestive of mild hypervolemia without decompensated congestive heart failure . No evidence of pneumonia .