Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the recent prior chest CT from ___ , there is increased opacity in the left lower lobe , particularly laterally . Large areas of cavitation seen in the prior CT were better assessed on CT although there is evidence of large lucency projecting over the left upper to mid hemithorax consistent with large cavity on CT . Persistent left paratracheal prominence .
    OUTPUT:
    
Apparent increase in opacity of the left lower lobe as compared to scout image from recent prior chest CT from ___ , given differences in modality . Evidence of left lung cavitation again seen , better assessed on CT .