Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion , or pneumothorax is seen . Heart and mediastinal contours are within normal limits . There is evidence for underlying COPD . Aortic calcification is again noted . Right Port - A - Cath appears in similar position . Right staghorn renal calculus is again noted .
    OUTPUT:
    
No radiographic evidence for acute cardiopulmonary process .