Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is mild blunting of the bilateral posterior costophrenic angle , which could be due to trace pleural effusions versus pleural thickening . No focal consolidation is seen . The cardiac and mediastinal silhouettes and the hilar contours are stable . No pneumothorax is seen .
    OUTPUT:
    
Slight blunting of the bilateral posterior costophrenic angles could be due to trace pleural effusions or pleural effusion .