Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views chest were performed . The lungs are clear , although , lung volumes are low . There is no pleural effusion , pneumothorax or focal airspace consolidation . The trachea is slightly deviated to the left compared to prior . The cardiac silhouette is normal in size . Calcifications are noted within the aortic arch , otherwise , the mediastinal contours are normal . The imaged upper abdomen is unremarkable .
    OUTPUT:
    
1 ) No acute cardiopulmonary process with low lung volumes . 2 ) Trachea slightly deviated to the left compared to the prior study . Correlation with physical examination of the thyroid is recommended .