Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is enlarged , with overlying surgical clips and intact sternotomy wires . In the left upper and lower lobes , there is an opacity with an unusual configuration , corresponding with the pleural effusion seen on the CT from the same date , and suggesting possible loculation . There is calcification of the right basal pleura . There may be right - sided pleural effusion as well , however correlation with a CT chest is done for confirmation .
    OUTPUT:
    
Left upper and lower lobe opacity , corresponding with the pleural effusion seen on the CT from the same date . The unusual configuration of this opacity suggests possible loculation .