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 . Total left chest tube has been removed . The left pleural effusion has decreased in size . The poorly defined left lower lobe opacity persists . The lungs are otherwise clear . Heart size is stable . The mediastinal and hilar contours are stable . The pulmonary vasculature is normal . Lungs are clear . No pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . Right Port - A - Cath in appropriate positioning . 2 . Improved left pleural effusion after removal of chest tube without evidence of pneumothorax . 3 . Unchanged poorly defined left lower lobe opacity .