Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy with multiple mediastinal surgical clips suggesting prior CABG surgery . An ovoid opacity measuring 4 .3 x 2 .5 cm in the right paravertebral or posterior right lower lobe is best appreciated on the frontal view . There is no definite correlate on the lateral view . However , the density persists on a repeat frontal view . There is no focal consolidation concerning for pneumonia , pleural effusion or pneumothorax . The pulmonary vasculature is not engorged , and there is no pulmonary edema . The cardiac silhouette is top normal in size . The mediastinal and hilar contours are within normal limits .
    OUTPUT:
    
1 . No focal consolidation concerning for pneumonia . 2 . Right paravertebral or posterior right lower lobe ovoid opacity on frontal views without a clear correlate on the lateral view for which a followup dedicated chest CT with contrast is recommended .