The treatments for stage III adenocarcinoma of transverse colon include surgery, drug treatment and so on. Stage III adenocarcinoma of transverse colon refers to advanced transverse colon cancer with lymph node metastasis and no distant metastasis. 1. Surgery: if the condition allows, i.e. the patient’s body can tolerate the surgery and the lymph node metastasis is limited, transverse colectomy can be performed to remove the tumor and its surrounding lymph nodes, and at the same time, it can be combined with chemotherapy to achieve a cure. 2. Drug therapy: advanced bowel cancer can be treated by chemotherapy, targeted drugs, immunotherapy and other drugs. Chemotherapy, such as 5-fluorouracil, oxaliplatin, etc., can inhibit the growth of tumor by acting on the various stages of cell growth; targeted drugs, such as bevacizumab, cetuximab, etc., can act on the specific target to kill the cancer cells; and immune drugs, such as PD-1, PD-L1, can regulate the immunity of the body to kill the cancer cells. Stage III adenocarcinoma of transverse colon can also be treated by ablation therapy, etc. The specific plan should be treated under the guidance of professional doctors.