Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The heart is mildly enlarged . The aorta is tortuous and diffusely calcified . Rounded opacity in the right hilar region is again noted , either a vessel on end or calcified lymph node . There is mild perihilar haziness and vascular indistinctness compatible with mild pulmonary edema . Small bilateral pleural effusions are new in the interval . There is no focal consolidation , or pneumothorax identified . No acute osseous abnormality is seen .
    OUTPUT:
    
Mild congestive heart failure with small bilateral pleural effusions .