Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Relatively low lung volumes are seen compared to prior . Somewhat streaky right basilar opacity is most suggestive of atelectasis . Elsewhere , the lungs are grossly clear . The cardiac silhouette is enlarged but stable in configuration . Atherosclerotic calcifications noted at the aortic arch .
    OUTPUT:
    
No definite acute cardiopulmonary process . No evidence of pulmonary edema .