Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy , and a prosthetic mitral valve is again noted . There is a right subclavian Port - A - Cath in stable position with its tip in the lower SVC . There continues to be persistent right middle lobe and bibasilar opacities , better assessed on the dedicated chest CT from ___ . No new focal opacity , pleural effusion or pneumothorax is seen . There is no pulmonary edema .
    OUTPUT:
    
Right middle lobe and bibasilar opacities , better assessed on the chest CT from ___ . No new opacities .