Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperexpanded but clear . Cardiac silhouette is normal in size . There is no pleural effusion , pneumothorax or pulmonary edema . There is a prominent left pulmonary artery . A 2 .4 cm lesion overlies the mid - to - lower thoracic vertebral bodies , likely a large osteophyte . The trachea is deviated slightly to the left .
    OUTPUT:
    
1 . Hyperexpansion without evidence of acute cardiopulmonary process . 2 . Trachea deviation to the left , perhaps related to a large thyroid .