Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A dual - lead pacemaker / ICD device is in a similar position . The heart is mildly enlarged . The aorta is calcified and mildly tortuous . The mediastinal and hilar contours appear unchanged . There is no pleural effusion or pneumothorax . A mild diffuse interstitial abnormality is not as prominent as on the prior study but suggests mild pulmonary vascular congestion . Subpleural scarring at each lung apex is unchanged . The bones are demineralized with similar S - shaped curvature and a moderate - to - severe lower thoracic vertebral body compression deformity . Mild - to - moderate degenerative changes along each shoulder are similar .
    OUTPUT:
    
Findings suggesting mild vascular congestion but improved .