Patients with rectal cancer and resectable liver metastases receive 25 Gy in 5 fractions of 5 Gy over 5 days to the pelvis and XELOX consolidating chemotherapy (with or without target therapy) al least 4 cycles after 2 weeks.~After evaluation, patients with resectable rectal cancer and liver metastasis will undergo surgery. Those patients with unresectable lesions will receive chemotherapy.
Patients with rectal cancer and resectable liver metastases receive short course radiotherapy(5Gy/f x 5f) to the pelvis and XELOX consolidating chemotherapy al least 4 cycles after 2 weeks.