Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is persistent left hemidiaphragm elevation , with resulting left basilar atelectasis . However , superimposed infection would be difficult to exclude in the appropriate clinical setting . Prominent interstitial markings are unchanged across multiple prior examinations , and suggests underlying chronic lung disease . Right lung is otherwise essentially clear . No effusion or pneumothorax . Heart is normal in size . Right shoulder arthroplasty is noted . Significant wedge compression of the lower thoracic spine with resulting kyphosis is unchanged .
    OUTPUT:
    
Left basilar consolidation , largely due to compressive atelectasis in the setting of left hemidiaphragm elevation . However , superimposed pneumonia would be difficult to exclude in the appropriate clinical setting . Otherwise no relevant change compared to ___ .