Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to prior , the lung volumes have increased and appear grossly clear . Known lung nodules are better assessed on prior CT . Right PICC terminates in cavoatrial junction . There is no pneumothorax or pleural effusion . The heart size and mediastinal silhouette are unchanged .
    OUTPUT:
    
Right PICC terminating in the cavoatrial junction . No pneumothorax .