Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . No prior . Linear opacities at the lung bases , right greater than left are most suggestive of atelectasis . Superiorly , the lungs are clear . Cardiomediastinal silhouette is within normal limits . Hypertrophic changes seen in the spine , osseous and soft tissue structures are otherwise unremarkable .
    OUTPUT:
    
Linear opacities at the lung base most suggestive of atelectasis ; however , if high clinical concern , repeat exam with PA and lateral is suggested to further characterize .