Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest show hyperinflated lungs with coarse interstitial markings consistent with COPD . The lungs are otherwise clear without focal consolidation , pleural effusion , or pneumothorax . The pulmonary vasculature is not engorged . The cardiac silhouette is normal in size . The mediastinal and hilar contours are within normal limits and unchanged from the preceding ___ radiograph . The descending thoracic aorta is moderately tortuous with partial calcification of the aortic knob . The patient is kyphotic with stable compression fracture deformities of the thoracic spine .
    OUTPUT:
    
Overall unchanged appearance of chest radiograph since prior exam of ___ with no evidence of pneumonia .