Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . There is mild vascular engorgement but no evidence of pulmonary edema . There is no consolidation , pleural effusion , or pneumothorax . Small central calcifications are unchanged and represent known calcified lymph nodes , likely from prior granulomatous disease . There is calcification of the aortic arch . The cardiac size is at the upper limits of normal . No fracture is identified .
    OUTPUT:
    
No definite acute cardiopulmonary process .