Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior radiographs , there is are new large left and small right pleural effusions with adjacent compressive atelectasis of the lower lobes . The aortic knob is calcified as before . No pneumothorax is seen .
    OUTPUT:
    
New bilateral pleural effusions , large on the left and small on the right , with partial collapse of the left lower lobe .