Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains moderately enlarged with dense coronary artery calcifications . Mediastinal and hilar contours are unchanged with atherosclerotic calcifications noted at the aortic knob . Mild pulmonary vascular congestion is not substantially changed in the interval without frank pulmonary edema . Chain sutures are noted in the right apex . Patchy opacities in the lung bases likely reflect areas of atelectasis . No focal consolidation , pleural effusion or pneumothorax is present . Multiple clips project over the right upper quadrant of the abdomen .
    OUTPUT:
    
Mild pulmonary vascular congestion , similar to the previous examination , without frank pulmonary edema . Patchy atelectasis in the lung bases .