Biopsy specimens of normal mucosa (n=5). adenomas (n -13), adenocarcinomas (n = 8). mucosa adjacent to adenoma (n=10) mucosa adjacent to adenocarcinoma (n = 7 ) at the large bowel were investigated by an iminunohistoc...Biopsy specimens of normal mucosa (n=5). adenomas (n -13), adenocarcinomas (n = 8). mucosa adjacent to adenoma (n=10) mucosa adjacent to adenocarcinoma (n = 7 ) at the large bowel were investigated by an iminunohistochemical method using 5- bromodeoxynldine (BrdUrd) . The labeling index (LI) was significantly lower in normal nucosa than mucosa adjacent to neoplasms and adenomas and adenocarcinomas. The proliferative zone was confined to the lower two- third at the crypt in normal mucosa and in mucosa adjacent to neoplasms. The labeled cells were either present in the upper third or scattered along the crust and in surface epithelium. The results support the adenmo-carcinoma sequence.展开更多
Sixteen cases of chordoms were studied with various polycolonal and monoilonal antibodies and ABC technic.such as antibodies S-100 protein, neurou specific enodas(NSE ), lysozyme, α1- AT, Myoglobin, desmin, keratin ...Sixteen cases of chordoms were studied with various polycolonal and monoilonal antibodies and ABC technic.such as antibodies S-100 protein, neurou specific enodas(NSE ), lysozyme, α1- AT, Myoglobin, desmin, keratin and cytokeratin. Two embryonic notochords and three chondrosarcomas were studied as control. Most of chordomas revealed positive results with NSE ( 12/16 ). Des ( 12 / 16 ) . α1-AT ( 11/ 16 ), MG( 11/16 ) . S-100( 10 /16)and CK ( 8 / 16 ), while K and Lys were negative in all( 16 )cases. It denotes that chordoma has the potentiality for both mesodermal and ectodermal differentiation. Lys was positive in all 3 chondrosarcomas while the CK was negative. So that Lys can be considered as an useful antibody to distinguish chordoma from chondrosarcoma, and CK is somewhat useful for this differential diagnosis too.展开更多
目的探讨乳腺转移性卵巢癌(metastasis of ovarian cancer to the breast,MOCB)的临床病理学特征、诊断及鉴别诊断。方法回顾性分析3例MOCB的临床病理学特征、免疫组织化学表型,并复习相关文献。结果患者年龄30~45岁,平均年龄37岁。3例...目的探讨乳腺转移性卵巢癌(metastasis of ovarian cancer to the breast,MOCB)的临床病理学特征、诊断及鉴别诊断。方法回顾性分析3例MOCB的临床病理学特征、免疫组织化学表型,并复习相关文献。结果患者年龄30~45岁,平均年龄37岁。3例患者既往均因卵巢癌行“子宫全切术+双侧输卵管、卵巢切除术+大网膜切除术”后接受铂类药物化疗,过程中出现了卵巢癌乳腺转移。例1、例2和例3乳腺转移癌肿瘤最大径分别为1.7 cm、3.5 cm、6.5 cm。例1标本镜下肿瘤呈乳头样结构,衬覆靴钉样细胞,胞质透明;免疫表型:Napsin A和PAX8均阳性,GATA-3阴性,Ki-67增殖指数25%,结合病史,诊断为乳腺转移性卵巢透明细胞癌。例2和例3标本镜下肿瘤呈乳头状、实性、腺管样结构,核异型性大,核分裂象常见,间质可见沙砾体;免疫表型:PAX8均阳性,GATA-3均阴性,p53提示突变型,Ki-67增殖指数分别为50%和40%,结合病史,诊断为乳腺转移性卵巢高级别浆液性癌。结论MOCB较为罕见,其中透明细胞癌更为罕见。MOCB易被误诊为原发性乳腺癌,结合卵巢癌病史及免疫组化结果进行鉴别是诊断关键。展开更多
文摘Biopsy specimens of normal mucosa (n=5). adenomas (n -13), adenocarcinomas (n = 8). mucosa adjacent to adenoma (n=10) mucosa adjacent to adenocarcinoma (n = 7 ) at the large bowel were investigated by an iminunohistochemical method using 5- bromodeoxynldine (BrdUrd) . The labeling index (LI) was significantly lower in normal nucosa than mucosa adjacent to neoplasms and adenomas and adenocarcinomas. The proliferative zone was confined to the lower two- third at the crypt in normal mucosa and in mucosa adjacent to neoplasms. The labeled cells were either present in the upper third or scattered along the crust and in surface epithelium. The results support the adenmo-carcinoma sequence.
文摘Sixteen cases of chordoms were studied with various polycolonal and monoilonal antibodies and ABC technic.such as antibodies S-100 protein, neurou specific enodas(NSE ), lysozyme, α1- AT, Myoglobin, desmin, keratin and cytokeratin. Two embryonic notochords and three chondrosarcomas were studied as control. Most of chordomas revealed positive results with NSE ( 12/16 ). Des ( 12 / 16 ) . α1-AT ( 11/ 16 ), MG( 11/16 ) . S-100( 10 /16)and CK ( 8 / 16 ), while K and Lys were negative in all( 16 )cases. It denotes that chordoma has the potentiality for both mesodermal and ectodermal differentiation. Lys was positive in all 3 chondrosarcomas while the CK was negative. So that Lys can be considered as an useful antibody to distinguish chordoma from chondrosarcoma, and CK is somewhat useful for this differential diagnosis too.
文摘为研究山羊结状神经节(Nodose ganglion,NG)的神经细胞内是否具备接受催产素(Oxytocin,OT)调节的条件。选取成年山羊结状神经节,采用免疫组化SP法检测催产素受体(Oxytocin receptor,OTR)在结状神经节内各种结构上的分布特点,用Image-pro plus 6.0分析结状神经节神经细胞和非神经细胞结构的催产素受体表达差异性。结果表明,结状神经节内OTR免疫阳性产物分布广泛,神经细胞、过路神经纤维、血管内皮细胞、支持细胞和雪旺细胞均有不同程度的着色。神经细胞胞核和支持细胞着色最深,为棕褐色,OTR分布强阳性。大部分神经细胞胞质着色为黄褐色,OTR分布中等阳性,这部分神经细胞胞质约占神经细胞总数的78%。血管内皮细胞、细胞膜,以及一小部分神经细胞胞质着色较浅,为淡黄色,OTR分布弱阳性。神经细胞胞核的核仁呈圆形,着色极浅或不着色,OTR分布阴性。图像分析表明神经细胞胞体的相对表达量与其他非神经结构差异极显著。OTR免疫阳性产物在山羊NG中广泛表达,且主要分布在NG内脏感觉神经细胞内,提示催产素有可能作用于NG内脏感觉神经细胞,从而通过内脏反射弧传入神经纤维影响内脏器官活动,而NG可能成为OT对内脏器官进行内分泌调节和通过自主神经对内脏器官进行神经调节两者相互协调作用的节点。
文摘目的探讨乳腺转移性卵巢癌(metastasis of ovarian cancer to the breast,MOCB)的临床病理学特征、诊断及鉴别诊断。方法回顾性分析3例MOCB的临床病理学特征、免疫组织化学表型,并复习相关文献。结果患者年龄30~45岁,平均年龄37岁。3例患者既往均因卵巢癌行“子宫全切术+双侧输卵管、卵巢切除术+大网膜切除术”后接受铂类药物化疗,过程中出现了卵巢癌乳腺转移。例1、例2和例3乳腺转移癌肿瘤最大径分别为1.7 cm、3.5 cm、6.5 cm。例1标本镜下肿瘤呈乳头样结构,衬覆靴钉样细胞,胞质透明;免疫表型:Napsin A和PAX8均阳性,GATA-3阴性,Ki-67增殖指数25%,结合病史,诊断为乳腺转移性卵巢透明细胞癌。例2和例3标本镜下肿瘤呈乳头状、实性、腺管样结构,核异型性大,核分裂象常见,间质可见沙砾体;免疫表型:PAX8均阳性,GATA-3均阴性,p53提示突变型,Ki-67增殖指数分别为50%和40%,结合病史,诊断为乳腺转移性卵巢高级别浆液性癌。结论MOCB较为罕见,其中透明细胞癌更为罕见。MOCB易被误诊为原发性乳腺癌,结合卵巢癌病史及免疫组化结果进行鉴别是诊断关键。
