Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . The cardiomediastinal silhouette is within normal limits . Deviation of the trachea at the thoracic inlet to the left may be due to right - sided thyroid enlargement . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process . Leftward deviation of the trachea at the thoracic inlet could be due to right - sided thyroid enlargement for which correlation with thyroid ultrasound could be performed .