Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate elevation of the right hemidiaphragm , which is longstanding . There is no pleural effusion , focal consolidation , or pneumothorax . Hilar and mediastinal silhouettes are unremarkable . Mild tortuosity of the descending aorta is noted . Heart size is normal . Mild pulmonary vascular congestion is present . Cervical fixation hardware is partially imaged . Visualized upper abdomen is unremarkable .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Persistent elevation of the right hemidiaphragm is longstanding . Mild pulmonary vascular congestion .