1) gastrointestinal tract
[医]癌前病变
2) precancerous lesions
癌前病变
1.
Protein and mRNA expression of PCDGF gene in laryngeal squamous cell carcinoma and precancerous lesions;
喉鳞癌与癌前病变中PCDGF基因mRNA和蛋白质表达及意义(英文)
2.
Tissue microarray assay of CD44v6 and PCNA expression for oral squamous cell carcinomas and precancerous lesions and its clinical significance;
组织芯片分析CD44v6和PCNA在口腔鳞癌及癌前病变中的表达及意义
3) precancerous lesion
癌前病变
1.
Helicobacter pylori infection and changes of cell gap junction of gastric epithelial cells in patients with gastric cancer and precancerous lesion;
胃癌和癌前病变患者细胞间隙连接改变与幽门螺杆菌感染的关系
2.
Significance of expression of APC gene in gastric cancer,precancerous lesion and gastric adenoma;
APC基因在胃癌、癌前病变及胃腺瘤中表达意义的研究
3.
Significance of Matrix Metalloproteinase-9 mRNA Expression in Human oral carcinogenesis and precancerous lesion;
口腔癌及癌前病变组织中MMP-9基因表达的意义
4) precancerosis
[,pri:kænsə'rəusis]
癌前病变
1.
Effectiveness of Microresection Combined with Radiofrequency Ablation under Laryngoscope and Rigid Telescope for Laryngeal Precancerosis;
支撑喉镜下吸引旋切结合射频治疗喉癌前病变的疗效评价
2.
Influences of Yangzheng Sanjie Decoction on EGF,EGFR of Gastric Mucosa at Precancerosis of Chronic Atrophic Gastritis;
养正散结汤对慢性萎缩性胃炎癌前病变胃黏膜EGF、EGFR的影响
3.
Relationship between Helicobacter pylori infection and expression of ras p21 and p53 in gastric carcinoma and precancerosis;
胃癌及癌前病变中幽门螺杆菌感染与p21和p53表达的关系
6) Premalignant lesions
癌前病变
1.
Expression of HPV18E2 gene in cervical cancer and premalignant lesions and its clinical significant;
HPV18E2基因在宫颈癌及癌前病变组织中的表达及其临床意义
2.
Cloning of novel gene GP1 associated with gastric cancer and its premalignant lesions
胃癌及其癌前病变相关新基因GP1的克隆
3.
It has been showed that the treatment and prevention of early cancer and premalignant lesions can reduce mortality and morbidity in colorectal cancer.
结直肠癌是一种常见的恶性肿瘤,在无症状人群中开展结直肠癌的筛查能够发现早期结直肠癌和一些癌前病变,积极治疗和干预后能够降低结直肠癌的发病率和死亡率。
补充资料:癌前病变
癌前病变
癌前病变主要是病理形态学的概念,临床上一般难以明确诊断。癌前病变的组织学特征主要表现为细胞增生和非典型性的出现,称为上皮不典型增生。镜下见底层细胞增生,从1~2层增至多层,甚至占据上皮的大部分,且有细胞排列紊乱,核增大,深染,染色质分布不均等核异质改变。轻度不典型增生细胞的异形性较轻,细胞排列稍紊乱,病变局限在上皮层的1/3,中度不典型增生细胞的异形性明显,细胞排列紊乱,病变局限在上皮层的2/3,重度不典型增生细胞显著异形,极性几乎全消失,病变几乎累及全部上皮层,仅剩1~2层表面的正常鳞状上皮。但是,癌前病变亦远不一定都发展成癌,很多非典型增生是可以恢复正常的,但向前发展成癌的可能性亦不可忽视。一般过程是:增生开始时只是单纯性增生,经过长期、持续增生,并反复接受刺激,遂出现非典型增生,非典型增生的进一步发展才转变为癌。单层立方或柱状上皮的增生主要表现为储备细胞增生,上皮复层化。非典型性表现为核增大、深染、大小不等、核位上移并参差不齐;胞浆内分泌物减少或缺。癌前病变是癌变前必经之病变,但本身并非恶性。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条