Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is normal in size . Mediastinal and hilar contours are normal . Pulmonary vascularity is normal . Hyperinflation of the lungs with emphysematous changes are again noted . Small left pleural effusion appears unchanged from the prior exam . There is minimal left basilar atelectasis . No focal consolidation or pneumothorax is detected . Degenerative changes are noted in both glenohumeral and acromioclavicular joints , as well as at multiple levels within the thoracic spine . A catheter is incompletely imaged within the right upper quadrant of the abdomen .
    OUTPUT:
    
Small left pleural effusion , unchanged , with associated left basilar atelectasis . Emphysema .