Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs appear clear with possible mild hyperinflation . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . No pneumothorax or pleural effusion . No evidence of lymphadenopathy or mass lesion .
    OUTPUT:
    
1 . No evidence of lymphadenopathy . No acute cardiopulmonary process .