Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is increased left basilar opacity silhouetting the hemidiaphragm . There had been opacity in this region on prior although now there is silhouetting of the medial hemidiaphragm and descending thoracic aorta . There are 2 approximately 12 mm nodular opacities projecting over the right mid to upper lung laterally which are not within the overlying osseous structures given change in position on different views . The lungs are otherwise clear . Moderate cardiomegaly is noted as well as atherosclerotic calcifications at the arch . Compression deformities in the spine , at least 1 of which has progressed since ___ .
    OUTPUT:
    
1 . Left base opacity which could be due to a combination of atelectasis and infection . Superimposed effusion is also possible . 2 . Two nodular opacities projecting over the right lung for which nonurgent chest CT is suggested .