Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is of normal size with unremarkable cardiomediastinal contours . Pulmonary vasculature is unremarkable . There is new blunting of the left costophrenic angle and smaller blunting of the right costophrenic angle , compatible with pleural effusions . Left lower lobe opacity may represent atelectasis or infection . No pneumothorax . Osseous structures are unremarkable . No radiopaque foreign body .
    OUTPUT:
    
New bilateral pleural effusions , left greater than right . Left lower lobe opacity may represent atelectasis or , in the correct clinical setting , pneumonia .