Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The lungs are clear without focal consolidation , or pulmonary vascular congestion . There is blunting of the posterior left costophrenic angle suggestive of a small effusion . Trachea is deviated anteriorly at the thoracic inlet . Cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
1 . Possible small left pleural effusion . 2 . Anterior deviation of the trachea at the thoracic inlet , which could be due to thyroid enlargement . Thyroid ultrasound is suggested on a non-emergent basis .