Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Re - demonstrated is a tracheostomy in unchanged location overlying the upper midline mediastinum near the thoracic inlet , unchanged in appearance since prior . A right sided vascular stent is unchanged in appearance and orientation . Right hilar mediastinal clips are unchanged . The cardiomediastinal silhouettes are stable . Known left hilar mass is not well appreciated on the current study . The right hilum is unremarkable . There is no focal lung consolidation . There is no pulmonary vascular congestion . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
1 . No focal lung consolidation . 2 . Stable appearance of mediastinal vascular stents and postsurgical clips . 3 . Known left hilar mass not well seen on current study .