Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single AP view of the chest shows a left Port - A - Cath in proper position with the tip at , or just above , the atriocaval junction . It is unchanged in position since the prior radiograph . The lungs are clear without consolidation or pulmonary edema . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
Unchanged position of left Port - A - Cath terminating at , or just above , the atriocaval junction .