子宫内膜样癌伴有微乳头结构和微囊、伸长及碎片状(microcystic, elongated and fragmented,MELF)浸润者罕见。常州市第二人民医院收治1例52岁的女性子宫内膜样癌患者,其病理标本中出现了微乳头结构,微乳头形态类似乳腺浸润性微乳头状癌...子宫内膜样癌伴有微乳头结构和微囊、伸长及碎片状(microcystic, elongated and fragmented,MELF)浸润者罕见。常州市第二人民医院收治1例52岁的女性子宫内膜样癌患者,其病理标本中出现了微乳头结构,微乳头形态类似乳腺浸润性微乳头状癌,由簇状或小巢团状肿瘤细胞组成,缺乏纤维血管轴心,与周围组织存在空隙,异型性明显;在免疫组织化学染色中显示特征性的黏蛋白1外缘染色和E-钙黏蛋白杯状染色。肿瘤浸润前沿同时可见MELF浸润方式。肿瘤浸润深肌层,可见脉管癌栓和1枚淋巴结隐匿性癌转移。患者术后接受化学治疗和放射治疗,恢复良好,随访53个月无复发或转移。临床上此类病例具有高侵袭性的生物学行为,容易漏诊,需要予以重视。展开更多
子宫内膜癌是女性生殖系统常见的恶性肿瘤之一,其最常见的病理形态为子宫内膜样腺癌。早期子宫内膜癌预后较好,但仍有少部分患者预后不良。影响子宫内膜癌预后的不良因素包括肿瘤组织学分级、子宫肌层侵犯深度、淋巴脉管间隙浸润(lympho...子宫内膜癌是女性生殖系统常见的恶性肿瘤之一,其最常见的病理形态为子宫内膜样腺癌。早期子宫内膜癌预后较好,但仍有少部分患者预后不良。影响子宫内膜癌预后的不良因素包括肿瘤组织学分级、子宫肌层侵犯深度、淋巴脉管间隙浸润(lymphovascular space invasion,LVSI)、宫颈间质受累及淋巴结转移等。伴微囊性、伸长及碎片状(microcystic,elongated,fragmented,MELF)浸润是子宫内膜样腺癌的一种特殊的浸润子宫肌层的方式。多项研究证实MELF浸润模式与某些影响预后的不良病理因素相关,但是MELF浸润模式的预后意义尚不明确。现就MELF浸润模式的临床病理特征以及预后意义的研究进展进行综述,以期为未来MELF浸润模式的相关研究提供理论参考。展开更多
This paper includes studies on the influence of grain refinement treatment with respect to the composition and structure of high zinc aluminium casting alloys on the changes of their tensile properties. The Al-20 wt.%...This paper includes studies on the influence of grain refinement treatment with respect to the composition and structure of high zinc aluminium casting alloys on the changes of their tensile properties. The Al-20 wt.%Zn alloy was inoculated with master alloys Al Ti5B1 and Al Ti3C0.15 to determine the impact of a variable titanium addition on the tensile properties of Al Zn20 alloy, and determine on this basis an optimal addition of Ti that would ensure the improvement of elongation of alloys cast in the sand mould, at the same time maintaining high tensile strength. Within the studies, light microscopy(LM) and strength tests were applied. Experimental results showed that the inoculation of high zinc aluminium alloy Al Zn20 with the master alloys Al Ti5B1 and Al Ti3C0.15 causes intensive structure refinement, while the intensity of reaction of both master alloys is comparable. The Al Ti3C0.15 master alloy addition, selected for further studies, introducing about 100 ppm Ti, enhances the tensile properties of the alloy; the elongation increases about 20% and tensile strength increases about 10% against the initial values(uninoculated alloy). Further increase of the Ti addition up to 500–600 ppm leads to the "overinoculation" effect that is accompanied by the decrease of elongation. Therefore,the Ti addition should be reduced to the level of about 100 ppm which ensures obtaining a set of optimal properties.展开更多
文摘子宫内膜样癌伴有微乳头结构和微囊、伸长及碎片状(microcystic, elongated and fragmented,MELF)浸润者罕见。常州市第二人民医院收治1例52岁的女性子宫内膜样癌患者,其病理标本中出现了微乳头结构,微乳头形态类似乳腺浸润性微乳头状癌,由簇状或小巢团状肿瘤细胞组成,缺乏纤维血管轴心,与周围组织存在空隙,异型性明显;在免疫组织化学染色中显示特征性的黏蛋白1外缘染色和E-钙黏蛋白杯状染色。肿瘤浸润前沿同时可见MELF浸润方式。肿瘤浸润深肌层,可见脉管癌栓和1枚淋巴结隐匿性癌转移。患者术后接受化学治疗和放射治疗,恢复良好,随访53个月无复发或转移。临床上此类病例具有高侵袭性的生物学行为,容易漏诊,需要予以重视。
文摘子宫内膜癌是女性生殖系统常见的恶性肿瘤之一,其最常见的病理形态为子宫内膜样腺癌。早期子宫内膜癌预后较好,但仍有少部分患者预后不良。影响子宫内膜癌预后的不良因素包括肿瘤组织学分级、子宫肌层侵犯深度、淋巴脉管间隙浸润(lymphovascular space invasion,LVSI)、宫颈间质受累及淋巴结转移等。伴微囊性、伸长及碎片状(microcystic,elongated,fragmented,MELF)浸润是子宫内膜样腺癌的一种特殊的浸润子宫肌层的方式。多项研究证实MELF浸润模式与某些影响预后的不良病理因素相关,但是MELF浸润模式的预后意义尚不明确。现就MELF浸润模式的临床病理特征以及预后意义的研究进展进行综述,以期为未来MELF浸润模式的相关研究提供理论参考。
基金financially supported by the European Union for the project Marie Curie TOK-DEV MTKD-CT-2006-042468
文摘This paper includes studies on the influence of grain refinement treatment with respect to the composition and structure of high zinc aluminium casting alloys on the changes of their tensile properties. The Al-20 wt.%Zn alloy was inoculated with master alloys Al Ti5B1 and Al Ti3C0.15 to determine the impact of a variable titanium addition on the tensile properties of Al Zn20 alloy, and determine on this basis an optimal addition of Ti that would ensure the improvement of elongation of alloys cast in the sand mould, at the same time maintaining high tensile strength. Within the studies, light microscopy(LM) and strength tests were applied. Experimental results showed that the inoculation of high zinc aluminium alloy Al Zn20 with the master alloys Al Ti5B1 and Al Ti3C0.15 causes intensive structure refinement, while the intensity of reaction of both master alloys is comparable. The Al Ti3C0.15 master alloy addition, selected for further studies, introducing about 100 ppm Ti, enhances the tensile properties of the alloy; the elongation increases about 20% and tensile strength increases about 10% against the initial values(uninoculated alloy). Further increase of the Ti addition up to 500–600 ppm leads to the "overinoculation" effect that is accompanied by the decrease of elongation. Therefore,the Ti addition should be reduced to the level of about 100 ppm which ensures obtaining a set of optimal properties.