Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are mildly hyperinflated bilaterally . There is no evidence of focal consolidation , pleural effusion , pneumothorax , or frank pulmonary edema . Biapical pleural thickening is noted . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
Hyperinflated lungs may reflect underlying COPD . No pneumonia .