Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Dual - lead left - sided pacemaker terminates with leads in the proper position . Chain sutures along the right lung base are again noted and appear stable . Again visualized is a loculated small left pleural effusion as well as a small right pleural effusion , appearing stable in comparison to prior study . There is a new confluent patchy opacity in left lower lobe in comparison to the prior study , which may be representative of developing pneumonia . Otherwise , the remainder of the lungs is clear . The cardiomediastinal silhouette remains stable . The visualized osseous structures are stable .
    OUTPUT:
    
1 . Stable small loculated left and small right pleural effusions . 2 . Heterogeneous opacity in the left lower lobe may be representative of developing pneumonia in the appropriate clinical setting .