Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . There is mild prominence of lung vasculature without lobar consolidation or frank pulmonary edema . Cardiomediastinal silhouette is within normal range . The new tracheal stent is in appropriate position . EKG leads overlie the chest wall . There is diffuse mild demineralization .
    OUTPUT:
    
1 . Mild prominence of lung vasculature without atelectasis or pulmonary edema . 2 . Tracheal stent is in appropriate position , unchanged compared to ___ .