Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Better delineated on recent CT scan is a left hilar mass compatible with patient 's known malignancy with complete left lower lobe collapse is again seen . Scattered opacity in the aerated left upper lobe are compatible with opacity seen on recent CT . The right lung is grossly clear . Mediastinal shift to the left is as seen on prior . Left chest wall dual lead pacing device and right Port - A - Cath are again seen . Widespread metastatic disease is better seen on prior CT scan .
    OUTPUT:
    
No significant interval change noting left perihilar mass with subsequent left lower lobe collapse and opacities in the aerated left upper lobe .