Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . The mediastinal and hilar contours are unremarkable . There may be mild pulmonary vascular engorgement without overt pulmonary edema present . Minimal atelectasis is seen in the lung bases without focal consolidation . No pleural effusion or pneumothorax is visualized . There are no acute osseous abnormalities .
    OUTPUT:
    
Mild pulmonary vascular engorgement . Bibasilar atelectasis .