Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are moderately hyperinflated , unchanged from the prior study . There is no focal consolidation , pneumothorax , or pleural effusion . Increased parenchymal markings and relative lucency in the upper lung zones are compatible with known chronic lung disease . The cardiac and mediastinal silhouettes and hilar contours are normal . Aortic knob calcifications are redemonstrated . No acute osseous abnormality is identified .
    OUTPUT:
    
1 . No acute intrathoracic process . 2 . Chronic lung disease compatible with COPD .