Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unremarkable and unchanged . The pulmonary vascularity is not engorged . Hyperinflation of the lungs suggests underlying COPD . Linear atelectasis is demonstrated within the right middle lobe . No focal consolidation , pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .