Luckily, most endocrine neoplasms are benign adenomas.

幸运的是，绝大部分内分泌肿瘤都是良性腺瘤。

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It is difficult to determine malignancy in endocrine neoplasms based upon cytology alone.

仅从内分泌肿瘤的细胞学检查很难确定为恶性。

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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.

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。

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