Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are relatively low with secondary crowding of the bronchovascular markings . There is right basilar opacity which may also be due to atelectasis though there is somewhat of a nodular appearance . There is no effusion . Cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications noted at the aortic arch .
    OUTPUT:
    
Right basilar opacity likely atelectasis , though there is somewhat nodular component . This should be correlated with cross - sectional imaging , likely performed elsewhere given patient 's history of lung cancer . No evidence of consolidation suspicious for pneumonia .