Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . There is evidence of prior aortic aneurysm repair with enlarging soft tissue opacity projecting over the left mid zone , larger compared to the prior radiograph . Likely small left pleural effusion . Right lung is clear . No significant interval change in bony thorax compared to the prior radiograph .
    OUTPUT:
    
Low lung volumes with enlarging aortic arch aneurysm projecting over the left mid zone . This is further confirmed by a chest CT from the same date , that was performed following this radiograph . No lobar consolidation present .