Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left subclavian approach port has been placed with tip demonstrated within the lower SVC . There is no evidence of pneumothorax . The lungs are essentially clear with minimal atelectasis in the retrocardiac region . There are no pleural effusions . The cardiomediastinal and hilar contours demonstrate mild cardiomegaly and tortuosity of the thoracic aorta .
    OUTPUT:
    
Left subclavian approach Port - A - Cath with tip in the lower SVC . No pneumothorax .