Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . Vascular clips superior to the clavicle as suggest prior lower neck surgery . New indentation of the left tracheal wall concerning for new thyroid mass .
    OUTPUT:
    
New indentation of the left tracheal wall near level of prior metal clips concerning for new thyroid mass .