Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . A right thoracostomy tube is present . No pneumothorax is detected . There is complete opacification of the left hemi thorax with a leftward tracheal shift , reflecting left pneumonectomy . An SVC stent remains unchanged in position . There is a small right pleural effusion .
    OUTPUT:
    
No right pneumothorax . Unchanged position of a right thoracostomy tube . Small right pleural effusion .