Three patients received cytokines: patient 3 received low-dose IL-2 and IFN-α for 6 months as an adjuvant therapy; patient 4 received IFN-α for lung metastasis, and patient 5 received high-dose IL-2 for metastatic mediastinal lymphadenopathy followed by radical lymph node dissection and radiation therapy to the mediastinum. This evidence concerns the gene IL2 and Lymphadenopathy.