Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated which may reflect underlying COPD . No focal consolidation is identified . The cardiomediastinal silhouette is mildly enlarged . There is no pleural effusion or pneumothorax . Visualized upper abdomen is unremarkable . Degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Mild cardiomegaly .