Malignant change is rare with these lesions.
这些病变很少发生恶变。
CONCLUSION Synchronous cancer of large intestines is not rare, and is related to malignant change of adenomas.
结论大肠同时多原发癌并非罕见，且与腺瘤癌变有关。
Objective:To investigate the relation between the activity of saliva-sucrase and malignant change of oral cavity tumor.
目的：探讨唾液蔗糖酶活性与口腔肿瘤恶变之间的相互关系。
The increase of telomerase activity may be an important contributing factor in the malignant change of colonic tissues.
端粒酶活性增高可能是结肠组织癌变的重要因素。
Conclusions Primary ovarian malignant melanoma arising from a mature cystic teratoma with malignant change, was a rare neoplasm.
结论卵巢原发性恶性黑色素瘤来源于卵巢成熟的囊性畸胎瘤恶变，是一种罕见的卵巢肿瘤。
Objective To investigate the causes of recurrence and malignant change of pleomorphic adenoma (benign mixed tumour) of lacrimal gland.
目的探讨泪腺良性多形性腺瘤术后易复发和恶性变的原因。
Objective: the aim of our study was to explore the incidence, pathogenesis and clinical features of malignant change of gastric ulcer.
目的：研究胃溃疡癌变的发病率、发病机理及临床特点。
But some birthmark will merge the body organ abnormalities, even has the possibility of malignant change, must be treated aggressively.
但是有些胎记会合并身体器官的异常，甚至有恶性变化的可能，必须积极治疗。
Conclusion: Detections of KAI1 and P53 proteins are valuable for predicting the malignant change and prognosis of the trophoblastic cells.
结论：P53、KAI1对预测滋养细胞的恶变，判断预后有一定的参考价值。
Postoperative pathological findings revealed 2 cases of partial malignant change and 1 case of contralateral infiltrating lobular carcinoma.
术后病理2例伴有部分恶变，1例对侧为浸润性小叶癌。
Benign leptomeningeal melanosis occurs when there are areas of proliferation of sheets or nests of melanocytes without frank malignant change.
良性的软脑膜黑色素沉着发生在黑色素细胞巢或细胞床增殖区域，不伴有明显的恶性变。
Results Sialic mucoprotein is a main content in nomal biliary epithelia. Sulfuric mucoprotein was increased during malignant change of biliary epithelia.
结果正常胆管上皮细胞主要含唾液酸粘蛋白，当胆管上皮细胞癌变时，则硫酸粘蛋白含量增加。
Malignant change - The squamous epithelia in craniopharyngiomas may rarely undergo malignant transformation into squamous cell carcinoma, usually as recurrence.
颅咽管瘤虽然经常复发，但是其鳞状上皮恶变成鳞癌非常罕见的。
The malignant degree of the tumor was closely related to the gray shadow and vascular change of the breast mass of near infrared scan.
近红外光扫描图像灰影伴血管改变越明显，该肿瘤也越趋于高恶性度。
Scientists have discovered a genetic change that can cause malignant melanoma.
科学家们发现了一种导致恶性黑素瘤的基因变化。
The soft rattan-form change in intrahepatic biliary ducts was the characteristic manifestation of malignant tumor of biliary tract.
肝内胆管的软藤状改变是胆道恶性肿瘤的特征性表现。
The change that causes malignant melanoma is the first one they have found.
他们首先发现的是导致恶性黑素瘤的突变。
Objective: to observe the change of blood endotoxin level after external biliary drainage with bile extracorporeal bypass in patients with malignant obstructive jaundice.
目的：探讨外引流术体外转流胆汁对恶性梗阻性黄疸病人血内毒素水平的影响。
As compared with the data of interior regions of our country, morbidity of malignant tumor was low, benign and phymatoid pathologic change was with higher percentage.
与国内、外资料比较恶性肿瘤比例较低，良性肿瘤及瘤样病变所占比例较大。
As compared with the data of interior regions of our country, morbidity of malignant tumor was low, benign and phymatoid pathologic change was with higher percentage.
与国内、外资料比较恶性肿瘤比例较低，良性肿瘤及瘤样病变所占比例较大。
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