Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chronic left - sided pleural opacification extending from the lateral costophrenic sulcus along the peripheral left pleural surface is similar to the prior CT which demonstrated pleural effusion . Adjacent linear scarring is present in the left mid and lower lung . Localize scarring is also seen in the right lung base . Heart is mildly enlarged and demonstrates new or pericardial calcifications , best visualized on the lateral view .
    OUTPUT:
    
Chronic left - sided pleural opacification , which may reflect chronic pleural effusion with or without a component of pleural thickening . Calcified pericardial thickening .