Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . Mediastinal contours appear unchanged . Bilateral hilar enlargement with associated streaky perihilar opacities extending into the right upper lobe and left lower lobe are compatible with known areas of tumor with with endobronchial spread and lymphadenopathy . Pulmonary vasculature is not engorged . No new focal consolidation or pneumothorax is identified . Blunting of the left costophrenic sulcus suggests a trace left pleural effusion . There are no acute osseous abnormalities . No subdiaphragmatic free air is present .
    OUTPUT:
    
Grossly unchanged appearance of the chest from the previous chest CT and chest radiograph with bilateral hilar enlargement and perihilar streaky opacities extending into the right upper lobe and left lower lobe compatible with areas of known malignancy and endobronchial spread of tumor . Trace left pleural effusion .