Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate intact sternal wires and mild cardiomegaly . The lungs are hyperinflated . There is no focal consolidation , pleural effusion , or pneumothorax . Bibasilar atelectasis and biapical pleural thickening are noted . There is no appreciable pulmonary edema or vascular congestion . The visualized upper abdomen is unremarkable . Retrocardiac opacity could represent a small hiatal hernia .
    OUTPUT:
    
No acute cardiopulmonary process . No appreciable pulmonary edema or vascular congestion .