Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . No prior . Relatively low lung volumes are seen . The lungs are clear of confluent consolidation . Cardiomediastinal silhouette is within normal limits for technique , positioning and low lung volumes . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
No definite acute cardiopulmonary process .