Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . There appears to be stenting of a bypass graft . Lung volumes are reduced . The heart size is mildly enlarged . The aorta demonstrates atherosclerotic calcifications of the knob . Widening of the right paratracheal stripe is likely due to vascular structures and / or mediastinal fat . There is no pulmonary vascular congestion , focal consolidation or pleural effusion . No pneumothorax is identified , and there are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .