肝脏是多种恶性肿瘤最易发生转移的器官,食管、胃肠、胆胰等消化器官最容易转移至肝脏[1],约占30%。转移途径有门静脉、肝动脉血行转移和经淋巴转移,临近器官癌肿如胆囊、胃、胰的病灶可直接浸润播散至肝脏。转移性肝癌常为多发性,大多呈灰色结节,质硬,以肝表面居多;病灶大小不 The liver is the most easily metastable organ in many malignant tumors. The digestive organs such as the esophagus, gastrointestinal tract, gall bladder and pancreas are the most easily metastasized to the liver [1], accounting for about 30%. Transfers portal vein, hepatic artery hematogenous metastasis and lymphatic metastasis, adjacent organ cancer such as gallbladder, stomach, pancreas lesions can be directly infiltrated to the liver disseminated. Metastatic liver cancer often multiple, mostly gray nodules, hard to the majority of the liver surface; lesion size