Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouettes are stable , and within normal limits . There are thoracic aortic atherosclerotic calcifications again noted . The bilateral hila are stable , within normal limits . Prominence of the pulmonary interstitium likely relates to underlying chronic pulmonary parenchymal disease and emphysema . There is no focal consolidation . There is no pulmonary edema . There may be a trace left pleural effusion . There is no right pleural effusion . There is no pneumothorax .
    OUTPUT:
    
Stable findings of COPD . No focal lung consolidation . Probable trace left pleural effusion .