Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a right Port - A - Cath , which terminates in the right atrium . T left chest tube appears unchanged in orientation . The poorly defined opacity in the superior segment of the left lower lobe is unchanged . The left pleural effusion is also unchanged . The right lung is clear . Heart size is stable . The mediastinal and hilar contours are stable . The pulmonary vasculature is normal . No pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . Right Port - A - Cath in appropriate positioning . 2 . Unchanged left pleural effusion . 3 . Unchanged left lower lobe opacity .