Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion , pneumothorax , or pulmonary edema is seen . Heart and mediastinal contours are within normal limits . Metallic spiral density projecting over the right mid to upper lateral lung field is seen on frontal view only and therefore is likely external to the patient .
    OUTPUT:
    
No radiographic evidence for acute cardiopulmonary process .