Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and heart size remains moderately enlarged . The aorta is tortuous and diffusely calcified . Right paratracheal calcifications may reflect calcified lymph nodes and are unchanged . There is mild pulmonary vascular congestion . No pleural effusion , focal consolidation or pneumothorax is seen . Lungs appear hyperinflated . Diffuse demineralization of the osseous structures is present .
    OUTPUT:
    
Mild pulmonary vascular congestion .