Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval increase in left pleural effusion is seen . No focal consolidation or pulmonary edema is seen . The cardiac silhouette has not changed from the most recent chest radiograph . The left central line tip is unchanged in position and appropriately ends within the lower SVC .
    OUTPUT:
    
Mild interval increase in left pleural effusion . No change in cardiac silhouette size .