Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are present . Cardiac silhouette size remains mild to moderately enlarged . Mediastinal and hilar contours are relatively similar . There is crowding of bronchovascular structures with mild pulmonary edema noted , new in the interval . Patchy opacities in the lung bases may reflect areas of atelectasis , but infection , particularly in the right lung base , is not excluded . No large pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes . Mild pulmonary edema . Patchy bibasilar atelectasis with infection in the right lung base not excluded in the correct clinical setting .