Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The examination is essentially unchanged . There are slightly low lung volumes . Given this , minimal left base atelectasis is seen . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The cardiac silhouette is not enlarged . The aorta is calcified and tortuous .
    OUTPUT:
    
No significant interval change .