Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated with coarse interstitial markings and the diaphragm is flattened consistent with emphysema . The left pulmonary artery is prominent which may reflect pulmonary hypertension . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
1 . Radiographic evidence of COPD . 2 . Prominent left pulmonary artery consistent with pulmonary hypertension .