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目的 评价甲状腺转录因子-1(TTF-1)、肺泡表面活性蛋白A (SP-A)在肺腺癌中表达的敏感性和特异性,探讨他们在肺腺癌诊断及鉴别诊断中的价值.方法 选择经组织学和临床资料证实的肺原发性腺癌40例、转移性腺癌13例,采用免疫组化EnVision法检测TTF-1及SP-A的表达情况.结果 40例肺腺癌中有32例表达TTF-1、27例表达SP-A;13例转移性腺癌中只有1例肝细胞癌胞质表达TTF-1、无SP-A表达.TTF-1和SP-A在肺腺癌中表达的敏感性分别为80%和67.5%、特异性均为100%.结论TTF-1在肺腺癌中表达有较高的敏感性和特异性,在排除甲状腺癌可能后,可作为鉴别肺原发性和转移性腺癌的可靠标记;而SP-A敏感性较低且随分化程度降低表达下降,故TTF-1对肺腺癌鉴别诊断的价值优于SP-A. 相似文献
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浆膜腔积液转移性肺腺癌细胞中TTF-1的表达 总被引:1,自引:0,他引:1
目的 探讨甲状腺转录因子-1(TTF-1)在浆膜腔积液肺腺癌细胞中的表达,为肺腺癌的诊断和鉴别诊断提供新的依据。方法 选用浆膜腔积液转移性腺癌共60例(胸水40例,腹水17例,心包积液3例)。经组织学或结合临床资料证实的肺腺癌36例,泌尿生殖道腺癌14例,胃肠道腺癌8例,乳腺癌2例。每例均制备HE染色的涂片和离心沉渣经琼脂和石蜡包埋而成的细胞块,并用细胞块切片作TTF-1免疫细胞化学染色。结果 36例肺腺癌中有26例表达TTF-1,24例肺外腺癌中只有2例表达TTF-1,其敏感性为72.2%,特异性为91.7%。结论 TTF-1在浆膜腔积液肺腺癌具有较高的敏感性和特异性,在排除甲状腺癌的可能性后,TTF-1阳性表达很大程度上提示腺癌原发于肺。 相似文献
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肺硬化性血管瘤组织中甲状腺转录因子-1的表达及其组织起源的探讨 总被引:32,自引:0,他引:32
目的:探讨肺硬化性血管瘤(SH)的组织起源、病理形态特征,甲状腺转录因子-1(TTF-1)在SH中的表达及其病理诊断价值。方法:对17例SH作回顾性研究,其中12例的SH组织标本进行TTF-1、上皮膜抗原(EMA)、细胞角蛋白(CK,pan)、波形蛋白、平滑肌肌动蛋白(SMA)、胎盘碱性磷酸酶(PLAP)、嗜铬粒素A(CgA)、突触素、CD34免疫组织化学SP法标记;6例作电镜观察。结果:SH组织结构多样,主要表现为实性区、乳头区,血管瘤样区和硬化区等四种结构,瘤细胞主要由表面立方细胞和多角形细胞二种细胞类型组成。所有肿瘤的多角形细胞和表面立方细胞同时表达TTF-1、EMA,仅1例见少数多角形细胞CgA、突触素呈弱阳性反应,电镜证实这些多角形细胞和胞质中可见少量电子致密颗粒。结论:SH可能起源于多潜能的原始呼吸道上皮细胞,它具有向肺泡上皮细胞、Clara细胞分化的能力。TTF-1及EM等免疫标记对SH的诊断具有十分重要的价值。 相似文献
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Thirteen primary thyroid clear-cell carcinomas and eight thyroid metastases of renal carcinomas are described. A broad variety of features is shown to be responsible for this follicle cell phenotype, some of which also occur in renal carcinomas. In biopsy specimens these two conditions can only be distinguished by immunohistochemistry. Clinical follow-up disclosed that in the papillary and follicular categories of thyroid cancer the biological behaviour of clear-cell tumours exhibits no significant difference to their non clear-cell counterparts. In the case of eight follicle cell carcinomas, various samples were available for study. These revealed some striking variations in histology at different stages, and even during the same stage, of disease. Both reversal of clear cell change and transitions towards other kinds of metaplasia occurred. Morever, maintenance of follicle cell function was documented in several of these lesions by estimations of serum thyroglobulin levels and radioiodine scans. On the basis of these findings the concept of regarding the clear-cell variant as a distinct subtype of thyroid cancer is refuted. Previous statements on the causal mechanism of clear-cell change are discussed and it is suggested that metaplastic transformation accounts for this phenomenon in at least some instances of this heterogeneous condition. 相似文献
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目的探讨Twist基因蛋白在甲状腺乳头状癌中的表达状况,寻找更特异的标记物,用于甲状腺乳头状癌(PTC)与滤泡状腺瘤(FA)和良性乳头病变(BPL)的鉴别诊断。方法以50例PTC为研究组,以48例FA和47例BPL作对照组。在自制组织芯片上行免疫组织化学(SP法)标记,检测Twist基因蛋白和HBME-1,并以CK19进行对照。结果3种指标(Twist、HBME-1、CK19)阳性表达率:在PTC组分别为100%(48/48)、94.0%(47/50)和78.0%(39/50);在FA组分别为0、6.7%(3/45)和0;在BPL组分别为7.0%(3/43)、2.1%(1/47)和0。PTC组分别与FA和BPL组比较差异均有统计学意义(P=0.000)。3种指标在鉴别诊断甲状腺良、恶性病变的灵敏度分别为:100%、96.4%和97.7%,特异度分别为:94.0%、95.7%和95.1%,准确度分别为:78.0%、100%和91.9%。结论Twist可应用于辅助诊断PTC,并可应用在对FA或BPL的鉴别诊断。 相似文献
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Fenton CL Patel A Burch HB Tuttle RM Francis GL 《Annals of clinical and laboratory science》2001,31(3):245-252
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Turner BM Cagle PT Sainz IM Fukuoka J Shen SS Jagirdar J 《Archives of pathology & laboratory medicine》2012,136(2):163-171