Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Significant increase in moderate left pleural effusion since ___ obscuring the left heart border concerning for empyema . Right upper lobe and lower lobe opacities are less radiodense and smaller compared to ___ . Right PICC ends in the mid SVC . Unchanged mediastinal silhouette .
    OUTPUT:
    
1 . Significant increase in moderate left pleural effusion since ___ should be considered empyema until proven otherwise given clinical history . If empyema is present need to be sure the patient does not have purulent pericarditis given location . 2 . Right PICC ends in the mid SVC .