Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval increase in right - sided pleural effusion , which may be partially loculated , with overlying atelectasis , underlying consolidation can not be excluded . Overall there are low lung volumes . Perihilar opacities may relate to pulmonary edema . Patchy left base opacity may be related to atelectasis versus developing consolidation . No left pleural effusion is seen . There is no evidence of pneumothorax . The right aspect of the cardiac silhouette can not be adequately assessed due to adjacent opacity .
    OUTPUT:
    
Significant increase in right - sided pleural effusion , which may be partially loculated , with overlying atelectasis , underlying consolidation not excluded . Perihilar opacities may also relate to underlying pulmonary edema . Patchy left base opacity may be due to atelectasis or developing consolidation .