...，说明其分化程度高或分化好（well differentiated）；如果相似形较小，则说明其分化程度低或 分化差 （ poorly differentiated ）。如果一个肿瘤缺乏与正常组织的相似之处，称为未分化（undifferentiated）肿瘤。
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间变(退行发育)：即分化差(poor differentiation)/去分化(dedifferentiation) differentiation)/ 退行发育) 指幼稚细胞在成长、发育、分化中误入歧途，发生质变，导致形
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结论膀胱癌术后腹壁切口种植转移癌一般分化差，或合并其他癌。
Conclusions the differentiation of the cancer cells of implantation metastasis is usually bad and often accompanied by squamous followed by carcinoma or adenocarcinoma.
结果 肿瘤细胞分化差，体积大及肿瘤远侧切除长度短者易复发。
Results The patients with poor differentiation carcinoma, large size of tumor and short distance from tumor to inferior incisal edge were prone to recurrence.
大肠癌患者中青年人较中、老年人的病理分化差，恶性程度高，淋巴结转移率高。
Young patients with colorectal cancer have poor pathologic differentiation, high degree of malignant and the higher rate of lymph node metastasis.
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