Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Redemonstration of vascular stents about the right superior mediastinum is noted . No pneumothorax or pleural effusions are seen . No focal consolidations are seen to suggest an acute infectious process . Heart size is within normal limits . Mild degenerative changes are seen within the thoracic spine .
    OUTPUT:
    
No acute intrathoracic process .