Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are low in volume with slight increase opacity surrounding the fiducial markers noted in the right mid lung and left base . Right apical nodule also appears larger , though comparison between the prior study is limited due to differences in technique . There is no pleural effusion or pneumothorax . The heart is normal in size with normal cardiomediastinal silhouette .
    OUTPUT:
    
1 . Apparent slight increase in right apical nodule , possibly due to differences in technique . 2 . Slight increase in opacification surrounding known nodule sites with fiducial markers , which could reflect continued evolution of post radiation change , though infection can not be excluded . PA and lateral CXR when clinically feasible will be helpful in further assessment .