Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is similar moderate elevation of the right hemidiaphragm . A mild interstitial abnormality and cephalization of pulmonary vascularity suggests slight congestion , but otherwise the lungs appear clear . There is no pleural effusion or pneumothorax . The bones are probably demineralized .
    OUTPUT:
    
Status post stent graft placement and sternotomy . Findings suggesting mild vascular congestion .