<65 (90) ≥65 (23)Sex Male (75) Female (38)Primary tumour site Right hemicolon (27) Left hemicolon (82)Liver metastasis Synchronous (97) Metachronous (16)Extrahepatic metastasis Present (58) Absent (55)Primary tumour No resection (29) Resection (75)Genetic condition KRAS mutation (29) KRAS wild type (25)Histology Poorly differentiated (17) Well and moderately differentiated (73)Systemic therapy before HAI ≥Third-line (20) Second line (41) First-line (47)Response to HAI CR (3) PR (20) SD (49) PD (23). The gene discussed is KRAS; the disease is neoplasm.