Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is top normal . Mediastinal and hilar contours are unchanged . Focal opacities within the superior segment of the left lower lobe and right lung base are relatively unchanged compared to the previous exam and remain concerning for areas of multifocal pneumonia . Small left pleural effusion may be present . There is no pulmonary edema or pneumothorax . Clips are seen projecting over the right neck . There are no acute osseous abnormalities .
    OUTPUT:
    
Persistent left lower lobe and right basilar opacities concerning for pneumonia . Possible trace left pleural effusion .