Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Left greater than right basilar opacities suggestive of atelectasis . The lungs are otherwise clear . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormality is identified . No free intraperitoneal air identified .
    OUTPUT:
    
No definite acute cardiopulmonary process .