Table 2 presents the serum EphA2 levels (pg/mL) in CRC patients categorized by various clinical characteristics, including tumor location, tumor size, depth of invasion, lymph node metastasis, distant metastasis, vascular invasion, lymphatic invasion, pathological stage, CEA levels, and CA19-9 levels (Table 2). The gene discussed is EPHA2; the disease is metastatic malignant neoplasm in the lymph nodes.