目前临床上许多恶性肿瘤的原发灶虽然被手术根治切除,甚至是常规病理学检查为转移阴性,自最终仍有可能出现复发和转移。这是因为在恶性肿瘤的早期阶段,肿瘤细胞可能已播散到原发灶以外的远处组织与器官,这种播散不能被常规的临床手段所检测,我们称之为微转移。近年来,微转 At present, many primary malignant tumors in clinical practice, although the radical resection, or even routine pathological examination for the negative, from the end is still possible recurrence and metastasis. This is because in the early stages of malignancy, tumor cells may have spread to distant tissues and organs other than the primary tumor, and such dissemination can not be detected by conventional clinical means, which we call micrometastasis. In recent years, micro-turn