Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Multiple intact sternal wires and mediastinal clips denoting recent CABG . A right IJ central venous catheter has been removed . There is no pneumothorax . A tiny left pleural effusion is unchanged . There is persistent moderate left lower lobe atelectasis .
    OUTPUT:
    
Moderate left lower lobe atelectasis and a tiny left pleural effusion .