Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly has been stable compared to prior exams dated back to ___ . Mild pulmonary vascular congestion is persistent however no definite evidence of overt pulmonary edema . Calcifications are seen within the aortic knob . Note is made of mild bibasilar atelectasis . There is no large pleural effusion or evidence of a pneumothorax .
    OUTPUT:
    
Stable mild cardiomegaly and pulmonary vascular congestion , without evidence of overt edema . Mild bibasilar atelectasis .