Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right PICC terminates in the upper SVCabd VP shunt traverses the right hemithorax , unchanged from ___ . Cardiomegaly and low lung volumes are unchanged . Substantial bibasilar atelectasis is persistent and not substantially changed from ___ . No pneumothorax . Small if any bilateral pleural effusions .
    OUTPUT:
    
No significant interval change . Low lung volumes and substantial bibasilar atelectasis .