Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is at the upper limits of normal . The mediastinal contours demonstrate calcified atherosclerotic disease of the aortic knob and rightward deviation of the trachea . The lungs are clear of lobar consolidation with minimal basilar vascular congestion . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . No radiographic evidence of pneumonia ; bibasilar pulmonary vascular congestion . 2 . Rightward tracheal deviation at the thoracic inlet may represent asymmetrically enlarged thyroid ; US may be considered .