Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , left upper lobe pneumonia is improved , small left pleural effusion is resolved , small right pleural effusion is unchanged , and residual atelectasis persists . Left perihilar consolidation in the region of known small cell lung cancer is unchanged . Mildly improved aeration of the lungs , particularly the left , is seen compared to last exam . Unchanged positioning of the left bronchial stent . The right PICC line has been removed . The heart size is normal . No pneumothorax .
    OUTPUT:
    
1 . Left upper lobe pneumonia is improved , small left pleural effusion has resolved , small right pleural effusion is unchanged , and residual atelectasis is stable since ___ . 2 . Unchanged left perihilar consolidation in the region of known lung cancer .