Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Left - sided cardiac pacing device with leads following the expected course to the right atrium and right ventricle . Right lung is clear , though there is possible emphysema in the upper lung . There is chronic left pleural thickening , which could be fissural , with left lower lobe atelectasis and possible pleural effusion . Heart size is normal . There is displacement of bowel away from the left upper quadrant , which could be due to splenomegaly .
    OUTPUT:
    
No evidence of pneumonia . Chronic left pleural thickening with left lower lobe atelectasis and possible effusion .