Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen are opacities at the right base which appear chronic and stable from multiple prior examinations including the prior CT examination . No new focal parenchymal opacity is seen . No pleural effusion , pulmonary edema , or pneumothorax is present . Mild cardiomegaly is unchanged . There is tortuosity of the aorta . The patient is status post median sternotomy , CABG , and mitral valve replacement . A left - sided dual - lead pacemaker is in standard position . Anchor within the right humerus is unchanged .
    OUTPUT:
    
Chronic opacity at the right base stable over multiple prior examinations . No new focal parenchymal opacity . No evidence of pulmonary edema .