Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest show a left chest wall port with the catheter terminating in the low SVC , unchanged . Compared to the prior radiograph , there is again a large right pleural effusion with adjacent atelectasis and likely right middle and lower lobe collapse . The left lung is well aerated and has no focal opacities . No left - sided pleural effusion is seen . The airway is midline . The cardiac and mediastinal contour is normal . No pneumothorax is appreciated .
    OUTPUT:
    
Large right pleural effusion which taking into account changes in patient positioning , is relatively unchanged since the prior study from ___ . No left lung abnormality .