We have established the best prognostic model of FAM83 family members in GC, including the prognostic model of patients with GC (FAM83C/D/G), patients with STAD with lymph node metastasis (FAM83C/D/G/H) and patients having STAD with high expression of ERBB2 (FAM83/G/H). The gene discussed is ERBB2; the disease is metastatic malignant neoplasm in the lymph nodes.