Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a new right internal jugular line with tip terminating in the upper SVC . There is no pneumothorax or pleural effusion . The heart size is top normal . There is enlargement of the upper mediastinum above the aortic knob . The lungs are clear .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Fullness of the upper mediastinum . Recommend conventional PA and lateral chest x-rays , to follow up .