Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient had recent sternotomy for CABG . Mild mediastinal and cardiac contour enlargement is unchanged . Small left pleural effusion with atelectasis is stable . There is no pulmonary edema and no pneumothorax .
    OUTPUT:
    
There is no significant change since previous exam in this patient with recent sternotomy for CABG . Residual left small pleural effusion with atelectasis is stable .