Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . No focal consolidation , pleural effusion or pneumothorax is seen . Blunting of the posterior right costophrenic angle is stable since ___ ; however , could be due to a trace pleural effusion versus pleural thickening . The cardiac silhouette is top normal to minimally enlarged . The aorta is slightly tortuous with small amount of calcification seen at the aortic knob . No overt pulmonary edema is seen .
    OUTPUT:
    
No significant interval change .