Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The posterior left costophrenic angle is blunted , possibly due to a trace pleural effusion . No focal consolidation is seen . There is no pneumothorax . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
No focal consolidation . Slight blunting of the posterior left costophrenic angle , new since ___ , could be due to trace pleural effusion .