As shown in Figure 1B, high expression of ZNRF2 was in DLBC (Lymphoid neoplasm diffuse large B‐cell lymphoma), LAML (Acute myeloid leukaemia), OV (Ovarian serous cystadenocarcinoma) and THYM (Thymoma) (p < 0.05), low expression of ZNRF2 was in TGCT (Testicular germ cell tumours) (p < 0.05). The gene discussed is ZNRF2; the disease is childhood testicular germ cell tumor.