Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Two left thoracostomy tubes are unchanged in position . There is no pneumothorax . The lung volumes are lower in comparison to the ___ study . Mild central pulmonary vascular congestion is unchanged . A small left pleural effusion remains stable .
    OUTPUT:
    
Left pneumothorax no longer detected . Unchanged left pleural effusion . Stable central pulmonary vascular congestion .