无论是良性内分泌肿瘤还是恶性内分泌肿瘤都显示一定程度的细胞异型性，因此仅从组织学上很难区分肿瘤的良恶性。
Both benign and malignant endocrine neoplasms demonstrate some degree of cellular pleomorphism, so it is not easy to tell benign from malignant on histologic grounds alone.
显微镜下，右侧的肾上腺皮质腺瘤类似正常的肾上腺束状带，左边为包膜。肿瘤细胞具有一定的异型性。
Microscopically, the adrenal cortical adenoma at the right resembles normal adrenal fasciculata. The capsule is at the left. There may be some cellular pleomorphism.
良性肿瘤细胞的异型性不明显，一般与其来源组织相似。
Benign tumor cell atypia was not obvious, the general organization similar to its source.
结论：肾脏黏液性小管状和梭形细胞癌是一种低度恶性的肾肿瘤，肿瘤细胞核圆形或梭形，异型性很小，可能来源于远端肾单位。
Conclusion:MTASCC of the kidney is a distinctive low-grade renal neoplasm probably arising from distal nephron. The nucleus of tumor cells are round or spindle with less atypia.
肿瘤细胞超微结构的异型性：一般来说，良性肿瘤的超微结构与其起源的组织基本相似。
Tumor cell ultrastructure heteromorphism: Generally speaking, the ultrastructure of benign and its origin is basically similar to the organization.
相反，可见异型性明显的的肿瘤细胞的成行排列。
Instead, rows of infiltrating neoplastic cells with marked pleomorphism are seen.
恶性肿瘤细胞根据其分化的程度表现出不同的异型性。
Malignant cells, according to their degree of differentiation showed different heteromorphism.
电镜发现增殖的细胞核异型性明显，具肿瘤细胞特征。
The nucleus of tumour cells had apparent strange type under electrical microscopy.
高倍镜下，胃腺癌分化较差，腺体已不可见。相反，可见异型性明显的的肿瘤细胞的成行排列。
At high power, this gastric adenocarcinoma is so poorly differentiated that glands are not visible.
高倍镜下，胃腺癌分化较差，腺体已不可见。相反，可见异型性明显的的肿瘤细胞的成行排列。
At high power, this gastric adenocarcinoma is so poorly differentiated that glands are not visible.
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