It was reported that tumor-expressed dickkopf-related (DKK) proteins affect micro-environment. However, the influence of DKK1 on colorectal cancer (CRC) liver oligometastases (CRCLOM) remains unclear. | Dickkopf-related protein 1 a new biomarker for local immune status and poor prognosis among patients with colorectal liver Oligometastases A retrospective study