Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is evidence of left pneumonectomy with increasing fluid in pleural space as expected with decrease in air component . Mediastinum is unchanged in position . Previously noted right upper lobe opacity has improved consistent with improving pneumonia . There is stable right lower lobe atelectasis and small pleural effusion . Stable mild multilevel degenerative changes of the thoracic spine are noted .
    OUTPUT:
    
Expected increase in fluid in left pleural space with decreasing air component . Improving right upper lobe pneumonia .