Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were performed . The lung volumes are low , which has resulted in vascular crowding . Obscuration of the left heart border is thought to be secondary to the high diaphragm . There is no pleural effusion or pneumothorax . Deviation of the trachea towards the right , likely from a large tortuous aorta , is unchanged . The cardiac silhouette remains moderately enlarged .
    OUTPUT:
    
No acute cardiopulmonary process .