Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes . No pleural effusion , focal consolidation , or pneumothorax . Hilar and mediastinal silhouettes are unchanged . Descending aorta appears tortuous . Heart size is normal . There is no pulmonary edema . Dual - chamber AICD device leads terminate in right atrium and ventricle . Left lung base opacities likely represent atelectasis . Partially imaged upper abdomen is unremarkable .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .