Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph ___ 01 :14 is submitted .
    OUTPUT:
    
Right chest tube remains unchanged in position . There continues to be near complete opacification of the right hemithorax likely due to a large pleural collection . There continues to be slight leftward shift of the mediastinal structures . A tiny amount of air is seen at the left apex consistent with a small pneumothorax . Streaky opacities in the left lung likely reflect atelectasis . There is possibly a small left effusion as the costophrenic angle appears blunted . The heart remains stably enlarged . No evidence of pulmonary edema .