Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Right chest wall port is again seen with catheter tip in the right atrium . Again seen are bibasilar opacities , on the frontal worse on the left than on the right . On the lateral view , there is superimposed atelectasis in the right middle lobe . Superiorly , the lungs are clear . Cardiomediastinal silhouette is unchanged . Known right hilar adenopathy was better seen on prior CT . Surgical clips project over the right axilla . No acute osseous abnormalities detected .
    OUTPUT:
    
Bibasilar opacities not significantly changed Since ___ . This could represent a combination of atelectasis and infection .