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 silhouette is mild to moderately enlarged . No overt pulmonary edema is seen . There is mild focal narrowing of the visualized upper trachea ; enlarged thyroid seen on subsequent cervical spine CT . Please note that dedicated imaging of the thoracic spine was not obtained on this study .
    OUTPUT:
    
Enlarged cardiac silhouette without overt pulmonary edema . No focal consolidation . The study does not include dedicated imaging of the thoracic spine . If there is high concern for thoracic spine injury , suggest dedicated imaging of the spine .