Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . The lungs are well expanded and clear . The cardiomediastinal silhouette is unremarkable . There is a slight impression on the right side of the lower cervical trachea with some displacement . This may be due to a right thyroid mass . The visualized osseous structures were unremarkable .
    OUTPUT:
    
No acute cardiopulmonary disease . Impression on the right side of the lower cervical trachea with slight displacement may represent a right thyroid mass .