Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volume is low . Elevated right hemidiaphragm is chronic at least since ___ . Mild bibasilar atelectasis is similar to prior . Moderate cardiomegaly is unchanged . Chronic deformity at left posterior 4 , 5 , and 6 ribs is again noted .
    OUTPUT:
    
No pneumonia . No notable interval change since ___ .