Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . There is mild enlargement of the cardiac silhouette . The aortic knob is calcified . Mild pulmonary edema is present with vascular indistinctness and perihilar haziness . Small bilateral pleural effusions are likely . No pneumothorax is identified . Widening of the right paratracheal stripe may suggest the presence of tortuous vessels . No acute osseous abnormality is seen .
    OUTPUT:
    
1 . Mild congestive heart failure with small bilateral pleural effusions . 2 . Widened right paratracheal stripe may be related to tortuous vessels but underlying lymphadenopathy is not excluded . Comparison with prior exams is recommended , or a CT of the chest can be obtained for further evaluation .