...： 大肠腺瘤是大肠癌的癌前病变,这一观点已被大多数的学者所认可[1],这种癌前病变被定义为上皮内肿瘤(intraepithelial neoplasia),组织学以富于细胞、胞核大而深染、梭形或增大呈卵圆形伴不同程度的核复层并缺乏极向为特点。
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目的：探讨上皮性卵巢癌组织中血管内皮生长因子a (VEGF - A)与肿瘤内淋巴管生成及淋巴结转移的关系。
Objective to investigate the relationship between expression of vascular endothelial growth factor a (VEGF-A) and lymphangiogenesis and lymph node metastasis.
如图所示：当基底膜完整时，我们称“原位癌”，因为肿瘤还局限在上皮内。
If the basement membrane is still intact, as shown here, then the process is called "carcinoma in situ" because the carcinoma is still confined to the epithelium.
视网膜色素上皮与玻璃膜形成的夹层内的肿瘤细胞发生坏死(Nc)。
The tumor cells that were located among retinal pigment epithelium and Bruchs membrane had necrosis (Nc).
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