Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No significant change from ___ . Heart and mediastinal contours are normal . No pleural effusion , pneumothorax , or pulmonary edema . Again seen are the nodular densities in the left lower lobe which are unchanged . No bony abnormality detected .
    OUTPUT:
    
No significant change of known rheumatoid nodules in left lower lobe from ___ .