Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Multiple lines and tubes have been removed . Right IJ central line remains present , tip over proximal SVC . There are low inspiratory volumes . Prominence of the cardiomediastinal silhouette is unchanged , consistent with prior surgery and likely accentuated by low inspiratory volumes . Sternotomy wires and mediastinal clips are again noted . There is increased retrocardiac density , consistent with left lower lobe collapse and / or consolidation . Hazy density both lung bases could represent atelectasis and / or small amount of pleural fluid . No gross effusion is identified . Doubt CHF . No pneumothorax detected .
    OUTPUT:
    
1 . Cardiomediastinal silhouette unchanged . 2 . Hazy density at both lung bases , consistent with atelectasis and / or small amount of pleural fluid . Left lower lobe collapse and / or consolidation , similar to prior . 3 . No CHF , gross effusion , or pneumothorax detected .