Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded and clear . No focal consolidation , pleural effusion , pulmonary edema , or pneumothorax . The heart size is normal . The mediastinal contours , hila , and pleura are unremarkable . Mild dilatation and tortuosity of the descending aorta , stable since at least ___ . No acute osseous abnormality .
    OUTPUT:
    
1 . No cardiomegaly . 2 . No acute cardiopulmonary process .