Although surgery is thus far the most efficient treatment for HCC, recurrence and metastasis of cancer cells after removal of cancer tumor or transplantation of liver may result in bad prognosis.
手术治疗仍然是目前肝癌最有效的治疗方法，但肝癌切除术或肝移植术后肿瘤的复发和转移是肝癌病人预后差的主要原因。
The theory of cancer stem cell proposes that the tumor tissue has its own cancer stem cells in it and regards cancer stem cell as the key to regeneration, metastasis and recurrence.
肿瘤干细胞学说认为，肿瘤组织中也存在少量具有干细胞性质的肿瘤干细胞，肿瘤干细胞是肿瘤发生、转移和复发的关键。
Cancer stem cells, a small subset of cells found in solid tumors, have the capacity to self-renew and differentiate, initiate tumors and drive tumor growth, recurrence and metastasis.
肿瘤干细胞是在实体肿瘤中发现的一个小的细胞亚群，其具有自我更新和分化、引发肿瘤并促进肿瘤生长、复发和转移的能力。
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