Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is slight blunting of the left costophrenic angle , which could be due to pleural thickening or very trace pleural effusion . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The cardiac silhouette is top normal to mildly enlarged . Surgical clips are seen projecting over the left aspect of the mediastinum . The aorta is calcified and tortuous .
    OUTPUT:
    
Slight blunting of the left costophrenic angle could be due to a trace pleural effusion or pleural thickening . No focal consolidation .