Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right port tip is in mid-to - low SVC . Mild improvement in lung volumes bilaterally . Stable left upper lobe opacity from atelectasis and residual hemorrhage . Mild interval increase in left lower lobe opacity . Stable bibasilar atelectasis and right lung mass . No pneumothorax or pleural effusion . Heart size , mediastinal contours and hilar are normal . No bony abnormality .
    OUTPUT:
    
Mild interval increase in left lower lobe opacity likely residual hemorrhage and atelectasis ; however , in the appropriate clinical setting may represent pneumonia . Consider continued followup .