Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided PICC line protrudes minimally into the uppermost right atrium . The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . The lungs appear clear . The patient is status post coronary artery bypass graft surgery .
    OUTPUT:
    
PICC line terminating in the uppermost right atrium .