Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is limited due to poor positioning . Confluent opacity at the right lung base is unchanged since ___ and likely represents scarring and previously seen posterior plueral calcifications . Left apical parechymal opacities have progresed since ___ and there is mild opacity at the left costophrenic angle as well . Right lung apex is obscured by patient 's chin . Mild - to - moderate cardiomegaly is again seen , but not clearly assessed due to poor positioning and rotation . There might be small bilateral pleural effusions . The aorta is tortuous with significant atherosclerotic calcifications seen at the aortic knob , stable from ___ . Lumbar spine hardware is partially visualized . Multiple old right - sided rib fractures are redemonstrated .
    OUTPUT:
    
Regions of scarring and pleural califications at the right lung base and apex , as on prior . More conspicuous opacities at the left lung apex and at the costophrenic angle may be due to progression of underlying lung disease and scarring , although infection can not be excluded .