Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tip of the left PICC line in and projects over the the superior cavoatrial junction . No focal consolidation , pleural effusion or pneumothorax identified . The size of the cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
Clear lungs . The tip of the PICC line extends to the superior cavoatrial junction .