Stereotactic Body Radiotherapy for Oligometastases From Colorectal Cancer

Inclusion Criteria: * 18-75 years * Eastern Cooperative Oncology Group (ECOG) performance score ≤ 1 * Diagnosis by pathological examination * Primary lesion is under control by surgery * Adequate blood counts: * White blood cell count ≥3.5 x 109/L * Haemoglobin levels ≥100g/L * Platelet count ≥100 x 109/L * Creatinine levels ≤1.0× upper normal limit (UNL) * Urea nitrogen levels ≤1.0× upper normal limit (UNL) * Alanine aminotransferase (ALT) ≤1.5× upper normal limit (UNL) * Aspartate aminotransferase (AST) ≤1.5× upper normal limit (UNL) * Alkaline phosphatase (ALP) ≤1.5× upper normal limit (UNL) * Total bilirubin (TBIL) ≤1.5× upper normal limit (UNL) Exclusion Criteria: * Primary lesion is not under control * Pancreatic carcinoma * Oligometastases could not be located * Pregnancy or breast feeding * Symptoms or history of peripheral neuropathy