Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal silhouette is stable . There is no focal consolidation . Minimal blunting of the left costophrenic angle is new compared to the prior examination and may represent a tiny left pleural effusion . There is no right pleural effusion . No pneumothorax . Bones and the upper abdomen are grossly unremarkable .
    OUTPUT:
    
Interval development of a tiny left pleural effusion . No consolidation or right pleural effusion .