Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Lungs are hyperinflated . There is no focal consolidation , pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal . Vagal nerve stimulator in the left chest wall is noted .
    OUTPUT:
    
Hyperinflation , but no acute cardiopulmonary process .