Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Since prior , there has been slight interval increase of the large right - sided pleural effusion . Underlying consolidation would be difficult to assess . Pleural - based calcifications projecting over the left hemithorax are unchanged . Superiorly the lungs are grossly clear . Cardiomediastinal silhouette is grossly unchanged and difficult to assess . No acute osseous abnormalities detected , old left lateral rib fractures again noted .
    OUTPUT:
    
Interval increase in size of right pleural effusion . No definite other changed noting that subtle underlying parenchymal changes would be difficult to assess given changes mentioned above .