Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and coronary bypass surgery . Cardiomediastinal contours are stable in appearance . Pulmonary vasculature is within normal limits . Smoothly marginated right - sided lateral pleural opacification is again demonstrated , and has slightly decreased in extent apicolaterally . On the lateral radiograph , pleural opacity , presumably fluid is also present within the fissures on the lateral view . Within the right lung , heterogeneous opacities are present throughout the right lower lobe , projecting over the thoracic spine on the lateral view . A previously present opacity in the right upper lung has resolved . Bones are diffusely demineralized , and compression deformities are again visualized in the mid thoracic spine . Permanent pacemaker in standard position . Previous left axillary lymph node dissection .
    OUTPUT:
    
1 . Slight decrease in extent of right - sided pleural opacity , presumably representing loculated pleural fluid , although a component of chronic pleural thickening is also possible 2 . Clearing of right upper lobe opacity , but persistent opacities in the right lower lobe . Findings could potentially be due to an aspiration pneumonia given clinical suspicion for pneumonia .