Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated , flattening of the diaphragms , suggesting chronic obstructive pulmonary disease . Relative increase in opacity over the right hemi thorax as compared to the left may be due to decrease volume of the right lung as well as potentially overlying soft tissue . The left lung appears to contain greater volume than the right . No focal consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Hyperinflated lungs , consistent with history of chronic obstructive pulmonary disease . Relative increase in opacity over the right hemi thorax as compared to the left may be due to decrease volume of the right lung as well as potentially overlying soft tissue . The left lung appears to contain greater volume than the right . No focal consolidation