Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Aortic stent graft is again seen . There is a left pleural effusion which appears increased since the prior study . Small right pleural effusion may also be present . Bilateral perihilar opacities suggest a degree of mild pulmonary edema . Left perihilar opacities again seen which on prior studies raised concern for lung mass . Patient is status post median sternotomy . Surgical clips are also noted in the right upper outer hemithorax . No evidence of pneumothorax is seen .
    OUTPUT:
    
Left greater than right pleural effusions . Perihilar opacities suggest component of underlying edema . Left mid lung mass better assessed on prior studies .