Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . No focal consolidation , pleural effusion , or pneumothorax . Hyperinflation of the lungs and flattening of the hemidiaphragms is consistent with history of COPD . Old right seventh rib fracture and C - spine hardware appear similar to ___ .
    OUTPUT:
    
No Evidence of pneumonia .