Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is prominence of interstitial lung markings consistent with emphysema . Left pleural thickening is again noted with small left pleural effusion , new from prior . An irregular opacity in the left midlung is unchanged from ___ . Fiducial markers are also noted along the right margin of the mediastinum as on prior . No new consolidation to suggest a superimposed pneumonia . A rounded density in the left humeral head is consistent with bone island seen on CT ___ . A tortuous aorta is unchanged .
    OUTPUT:
    
No signs of pneumonia . Left pleural thickening with small left effusion .