Conclusions The activated carbon can be used as a useful lymphatic tracer and drug carrier, for it is characterized by avirulence, high lymphatic tropism, long residence time in the lymph nodes.

• 结论活性炭有较强的趋淋巴性,在淋巴结中驻留时间长,其本身无毒性,可作为淋巴结示踪剂及药物载体。