Summary Transcatheter inferior phrenic arterial (IPA) and hepatic arteriography was performed on 38 patients with advanced primary
hepatic carcinoma (PHC) with blood supplied by IPA and hepatic artery. 18 patients received single treatment with hepatic
arterial infusion (HAI) or embolization (HAE) 20 received double treatment with IPA and hepatic arterial infusion or embolization.
The results show that the double treatment is superior to the single one. The angiographic features and mechanism of parasitization
of inferior phrenic arterial supply to PHC were also discussed. 相似文献
目的探讨宫颈小细胞神经内分泌癌(small cell neuroendocrine carcinoma of the cervix,SCNEC)的临床病理特征和免疫组化特点。方法对四川省妇幼保健院病理科和四川省人民医院病理科2006年1月至2014年6月诊治的8例宫颈小细胞神经内分泌癌进行组织形态学、免疫组化观察,并对其临床资料进行整理分析。结果 8例患者平均年龄45.6岁,均以阴道不规则出血或宫颈接触性出血就诊。组织学显示肿瘤由大小较为一致的圆形、卵圆形细胞构成。其中单纯性小细胞神经内分泌癌7例,合并腺癌成分1例。免疫组化:所有病例癌细胞细胞角蛋白(CK)不同程度阳性,且均有两种以上神经内分泌标记阳性,其中6例突触素(Syn)和嗜铬素(Cg A)均阳性,4例神经细胞黏附分子(CD56)阳性。随访7例患者,死亡3例。结论宫颈小细胞癌作为一种少见的高度恶性肿瘤,进展快,预后差,免疫组化神经内分泌标志阳性有助于诊断。 相似文献
To compare stress distribution and failure probability in maxillary premolars restored by simple occlusal veneer (SOV) and buccal-occlusal veneer (BOV) with 3 different CAD/CAM materials.
Materials and methods
A maxillary premolar was digitized by a micro-CT scanner. Three-dimensional dynamic scan data were transformed, and finite element models of 2 different models (SOV and BOV restored teeth) were designed. Three different CAD/CAM materials, including lithium disilicate glass ceramic (LD) IPS e.max CAD, polymer-infiltrated ceramic-network (PICN) Vita Enamic, and resin nano-ceramic (RNC) Lava Ultimate, were designated to both veneers. Maximum principle stresses were determined by applying a 300-N axial load to the occlusal surface. Weibull analyses were performed to calculate the failure probability of the models.
Results
LD-restored teeth showed the highest stress in the veneer, lowest stress in substrate teeth, and lowest failure probability for the overall system; RNC-restored teeth showed the lowest stress in the veneer, highest stress in substrate teeth, and highest failure probability. No significant differences were found in the cement layer among the different models. No significant differences of stress and failure probability existed between SOV and BOV preparations.
Conclusions
CAD/CAM composite resin occlusal veneers bear lower maximum stress than ceramic veneers. Teeth restored by composite veneers are more prone to failure than those restored by ceramic veneers. Additional reduction of the buccal surface did not increase the stress on the occlusal veneer under axial load.
Clinical relevance
Both occlusal veneers could be used under physiological masticatory force. CAD/CAM glass ceramic was safer than composite resins.