摘要
目的 :探讨肺大细胞未分化癌的各种分化表型以及不同分化表型与淋巴结转移及预后的关系。方法 :采用光镜、电镜及免疫组化方法对 32例肺大细胞癌手术标本进行观察 ,所有抗体分别为细胞角蛋白AE3[CK(AE3) ]、细胞角蛋白 18(CK18)、突触素 (Syn)及嗜铬颗粒蛋白A(CgA)。结果 :免疫组化为各抗体阳性表达率为CK186 8.75 %、CK (AE3) 18.75 %、Syn4 0 .6 3%、CgA31.2 8%、CK18和Syn(或CgA)阳性率 9.36 %、CK(AE3)和Syn(或CgA)阳性率 6 .2 5 %、腺鳞分化阳性率 3.13% ;电镜结果为具有鳞癌、腺癌及神经内分泌分化特征的分别占 2 5 .0 0 %、87.5 0 %、31.2 8%、其中具有鳞癌和神经内分泌分化的有 3例 (9.38% ) ,具有腺癌和神经内分泌分化的有 5 (15 .6 2 % )例 ,具有腺鳞分化的 2 (6 .2 5 % )例。结论 :肺大细胞癌在HE染色观察虽然属于未分化癌范围 ,但电镜和免疫组化仍可确定其有不同程度的分化表型。
Objective:To discuss the different phenotypic differentation of pulmonary large cell carcinoma(PLCC) and the relationship between phenotypic of PLCC and the metastasis of lymphonodi .Methods:The study was performed on 32 cases of PLCC by morphology and immunohistochemistry(IHC) ,the used aitibodies were cyrokeratin(AE3),cytokeratin18(CK18),synaptophsin(Syn),chromogranin(CgA).Results:The expression rates for CK18,CK(AE3), Syn,CgA,CK18 and Syn(or CgA),CK(AE3) and Syn(or CgA) CK18 and CK(AE3) were 68.75%,18.75%,40.63%,31.28%,9.36%,6.25% and 3.13% respectively.According to the phenotypic differentiation in EM,the 32 cases of PLCC could be with adenomatous(87.50%), squamous(25.00%), neuroendocrine (31.28%),squamo-neuroendorine (9.38%), adeno-neuroen-docrine(15.62%) and adenosquamouse (6.25%). Conclusions:The results indicated that PLCC has some phenotypic differentiation under EM and IHC although it is undifferentiated carcinoma in HE stain.
出处
《大连医科大学学报》
CAS
2002年第2期88-90,共3页
Journal of Dalian Medical University
关键词
肺大细胞未分化癌
免疫组化
电子显微镜
淋巴结转移
pulmonary large cell carcinoma
immunohistochemistry
electronic microscopy
metastasis of lymphonodi
