Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided PICC with the tip in the mid to low SVC . Prior median sternotomy and CABG , sternal wires are intact . Moderate cardiomegaly . No pulmonary edema . The lungs are clear . No substantial pleural effusions . Chronic left pleural thickening unchanged .
    OUTPUT:
    
Left PICC in the mid to low SVC .