Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a large opacity at the right lung base , which is likely due to elevation of the right hemidiaphragm from numerous bulky hepatic masses . Aerated portion of the right lung apex is clear . There is a small pleural effusion on the left . Left lung base opacity may represent adjacent atelectasis , although infection could be considered in the appropriate clinical setting . No pneumothorax bilaterally . No acute osseous abnormalities are identified . Surgical clips are noted in the bilateral upper quadrants .
    OUTPUT:
    
1 . Large right lung base opacity is likely due to aeration of the right hemidiaphragm from numerous hepatic masses . 2 . Small left pleural effusion , with left lung base opacity most likely representing atelectasis .