Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Heart size and cardiomediastinal contours are normal . Lungs are clear without focal consolidation , pleural effusion , or pneumothorax . Mild deviation of the trachea to the left may be due to thyromegaly or enlarged innominate artery .
    OUTPUT:
    
No acute cardiopulmonary process .