Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrate hyperinflated lungs with flattening of the diaphragms , findings which can be seen in patients with COPD . Apical scarring bilaterally is additionally noted . No focal opacity convincing for pneumonia is identified . Cardiomediastinal and hilar contours are within normal limits . There is no overt pulmonary edema . There is no pleural effusion or pneumothorax . Visualized osseous structures demonstrates no acute abnormality .
    OUTPUT:
    
No acute intrathoracic abnormality .