Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were provided . There is no focal consolidation , pleural effusion , or pneumothorax . Lungs are hyperexpanded . Cardiomediastinal silhouette is unremarkable . Osseous structures are unremarkable .
    OUTPUT:
    
Hyperinflated lungs , likely due to COPD . Otherwise , no acute cardiopulmonary process .