Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated and and clear . There is no superimposed consolidation or mass . Linear streaky opacities in the lower lungs posteriorly could reflect known bronchiectasis , as better assessed on prior CT . Cardiomediastinal silhouette is unremarkable . There is no pneumothorax or pleural effusion . Visualized osseous structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .