Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post left upper lobectomy , apparently partial , as before , with associated volume loss including leftward shift of mediastinal structures and elevation of the left hemidiaphragm . A left apical cavity containing air and fluid appears similar in size although probably with more fluid and less air content than on the prior examinations . Persistent posterior basilar consolidation is noted but similar to the recent prior examinations allowing for differences in technique .
    OUTPUT:
    
Persistent left lower lobe consolidation ; no significant change .