GE公司REVOLUTIONXR／D型DR故障维修一例

GE公司REVOLUTIONXR／D型DR在使用过程中因IDC数据库或硬盘损坏影响开机使用,现将日常工作中出现的故障现象、维修过程总结出来,以供大家参考。     

不同乳腺病变组织中TSP-1、CD44V5、HER4表达对微血管密度的影响

目的　探讨不同乳腺病变组织中微血管密度(MVD )的差异及其与TSP 1,CD44V 5 ,HER 4表达情况的关系。方法　采用免疫组化SP法,检测乳腺纤维腺瘤、小叶增生和乳腺浸润性导管癌(IDC )组织中TSP 1,CD 44V 5 ,HER 4的表达情况及MVD。结果　在IDC组织中的MVD明显高于其它两种组织(P <0 .0 5 ) ;在3种组织中MVD与TSP 1,CD 44V 5的表达均无关(P >0 .0 5 ) ,但在IDC中,MVD值与HER4表达有关(P <0 .0 5 ) ,HER 4阳性的IDC组织MVD较高。结论　IDC组织的MVD高于良性病变;HER4的表达可促进IDC组织中MVD的增加。     

Cardiovascular Disease Prevention and Implications for Worksite Health Promotion Programs in Brazil

Economic growth, an aging population, and changes in lifestyle patterns have contributed to the rise in cardiovascular disease (CVD) in Brazil. Worksite health and wellness programs are viewed as a potentially viable means to address the increase in disease burden in Brazil. The purpose of the present review is to investigate actions proposed by the Brazilian Government for CVD prevention and the current state of worksite health promotion. Our review of literature found that the Brazilian Government has been showing a growing interest in developing and promoting CVD preventive strategies, primarily through better control of known risk factors (i.e. smoking, obesity, physical inactivity, high cholesterol, high blood pressure, and high blood glucose). Current initiatives are considered positive steps toward better CVD prevention in Brazil. With respect to worksite health and wellness, additional work is needed to determine optimal program delivery models, financial implications and individual/population compliance with healthier lifestyle choices.     

Percutaneous breast lesion excision system (BLES): A new tool for complete closed excision of high risk lesions (Egyptian experience)

The objective of the study is to assess the use of “Intact” Breast lesion excision system as the primary method for histopathological diagnosis of suspicious small and borderline lesions as well as the unclassified microcalcifications.     

Separation of dendritic cells from highly purified human monocytes by counterflow centrifugation induces tissue factor expression

BACKGROUND: In vitro generation of dendritic cells (DCs) from human monocytes represents a promising tool in immunotherapy. However, it is not known whether the separation of DCs from monocytes induces tissue factor expression and therefore may trigger coagulation in patients receiving these DC preparations. The aim of this study is thus to analyze tissue factor expression on monocyte-derived DCs and to compare their ability to trigger thrombin generation to that of macrophages obtained from the same monocytes. STUDY DESIGN AND METHODS: Human monocytes are separated by leukapheresis and washed by using counterflow centrifugation in sterile, endotoxin-free conditions. Macrophages are grown from human monocytes in the presence of GM-CSF alone and immature DCs are grown in the presence of GM-CSF plus IL-4 for 5 days with fetal calf serum (IDC-FCS). Immature DCs are also grown from human monocytes for 7 days in the presence of GM-CSF plus IL-4 with human group AB serum (IDC-HS). The addition of prostaglandin E(2) and TNFalpha in this culture medium at Day 5 leads to mature DCs (MDC-HS). Tissue factor mRNA expression is studied by RT-PCR analysis. Tissue factor antigen is measured by ELISA in cell lysates and by direct flow cytometry. The procoagulant activity of intact cells is assessed by using an amidolytic assay or a chronometric assay. RESULTS: IDC-FCS express tissue factor mRNA and antigen and trigger thrombin generation. Procoagulant activity of IDC-FCS is dependent on both tissue factor expression and exposure to anionic phospholipid. Monocyte-derived macrophages cultured for 5 days with GM-CSF alone express lower levels of tissue factor mRNA, tissue factor antigen, and procoagulant activity than IDC-FCS. IDC-HS and MDC-HS also express high levels of tissue factor mRNA and antigen and support procoagulant activity. CONCLUSION: Monocyte-derived DCs express a high level of functional tissue factor and support procoagulant activity. This finding should be taken into account in clinical trials.     

Minute invasive ductal carcinoma of the residual pancreas after distal pancreatectomy for intraductal papillary-mucinous tumor

Summary Our report describes a 66-yr-old man who underwent surgical resection of the pancreas twice within a period of 3 yr for primary and recurrent intraductal papillary mucinous tumors (IPMTs). During the second operation, a minute invasive ductal carcinoma (IDC) was accidentally discovered in the resected specimen of the residual pancreas. The similarity and continuity between this IDC and recurrent IPMT were not recognized histologically. A solid tumor was found in the hepatoduodenal ligament 3 mo after the second operation. We performed a third operation, performing laparotomy and intra-operative radiotherapy, but could not extirpate the tumor. A biopsy specimen obtained from the tumor during this third operation revealed adenocarcinoma, and the patient later died because of tumor progression. We immunohistochemically analyzed the expression of HER-2/neu, Smad4, p16, p21, p53, mucin immunophenotypes and the Ki-67 labeling index in this series of pancreatic-duct neoplasias. Overexpression of HER-2/neu and loss of Smad4 were detected in the minute IDC, which was very different from the immunohistochemical features of both the primary and recurrent IPMTs. The IDC also showed a MUC1-positive/MUC2-negative phenotype. Therefore, we suggest that de novo IDC may occur in IPMT patients, especially those with multiple tumor recurrence. The present case may be helpful in understanding the pathogenesis of pancreatic duct lesions.     

The impact of large sections on the study of in situ and invasive duct carcinoma of the breast

Large histologic sections (LHSs) are increasingly used in the study of normal and neoplastic breast tissue. LHSs allow the direct visualization of a large part of the breast glandular tree. Accordingly, LHSs have shown that in situ and invasive lobular carcinoma is a multilobar (and hence multifocal) neoplastic lesion in more than 50% of the cases, and that poorly differentiated duct carcinoma in situ (DCIS grade 3) is frequently unifocal, whereas it is often multifocal when the in situ lesion is a well-differentiated type (DCIS grade 1). Forty-five mastectomies were studied with large sections. Mastectomies were performed when quadrantectomy did not guarantee radical excision of the tumor with adequate cosmesis because of the large size of the lesion or because the neoplastic lesion was located below the nipple. Excluded were cases of lobular neoplasia or invasive lobular carcinoma, because they were reported separately, and cases of mastectomies performed for sarcoma or recurrent phyllodes tumor. All cases had undergone a preoperative diagnostic procedure (fine needle aspiration), and the relative positive material was reviewed. All 45 cases showed in situ duct carcinoma and 37 showed evidence of invasive duct carcinoma. Forty-two cases of DCIS were multifocal, whereas only 4 invasive duct carcinoma were shown as multifocal. When DCIS lesions were subdivided into 3 grades, no statistical significance was seen among the 3 groups of DCIS in regard to multifocality. Nevertheless, DCIS grade 1 was a widespread condition involving more than one lobe and quadrant, whereas DCIS grades 2 and 3 appeared more localized. DCIS grade 1 was more similar to that previously observed in lobular in situ neoplasia/lobular in situ carcinoma. In 66.6% of the cases, DCIS foci were found within the invasive areas, indicating a more than fortuitous occurrence (2-sided P=.0357).     

The prognostic significance of metaplastic carcinoma of the breast (MCB) – A case controlled comparison study with infiltrating ductal carcinoma

PurposeMetaplastic carcinoma of the breast (MCB) is a rare histological subtype of breast cancer with an incidence of less than 0.1%–0.5%. Due to its rarity, the clinical characteristics and prognostic significance of MCB compared with other common breast cancers (like infiltrating ductal carcinoma [IDC], and infiltrating lobular carcinoma [ILC]) are not clear, and controversial among different reports.MethodsWe performed a collective comparison study of multi-institutional cases to evaluate the clinical characteristics and prognostic status of MCB to compare with IDC and ILC. A case control analysis was performed to minimize the bias from clinicopathologic factors between IDC and MCB. Disease free survival (DFS) and overall survival (OS) between groups were compared.ResultsForty-five MCB patients were enrolled from the 4 medical centers and compared with 1777 IDC and 53 ILC patients from the CCH cancer registry database comprise the current study. Compared with IDC, MCB was associated with older age, larger tumor size, a lesser lymph node positive rate, a higher likelihood of distant metastasis, higher tumor grade, lower ER-positive tumor, and higher triple negative breast cancer subtype (TNBC). MCB was associated with worse OS (p = 0.031) than IDC, but no difference in DFS (p = 0.071); however, MCB was not statistically different from ILC in both DFS and OS (p = 0.289 and 0.132, respectively). Compared with the case-controlled IDC group, MCB patients had poorer OS (p = 0.040), but no difference in DFS (p = 0.439).ConclusionMCB is associated with poorer OS than IDC, and this was related to tumor behavior rather than clinicopathologic factors.     

Clinical signification of high-mobility group box 1 protein （HMGB1） expression in infiltrating ductal carcinoma breast tissue

Objective： Exploring the clinical signification of high-mobility group box 1 protein （HMGB1） expression in infiltrating ductal carcinoma （IDC） breast tissue. Methods： The expression of HMGB1 protein in IDC breast tissue was detected by immunohistochemistry, and the relations among size of tumour, lymph node metastasis, clinical staging, estrogen receptor （ER）, progesterone receptor （PR） and human epidermal growth factor receptor 2 （HER-2） were also analyzed. Results： Forty six cases out of 60 cases of IDC breast tissue showed positive or strong positive HMGB1 expression （76.67%）, statistical significance was observed between HMGB1 expression with clinical staging （P 〈 0.01）, lymph node metastasis （P 〈 0.01）, breast cancer ER （P 〈 0.05） and HER-2 （P 〈 0.05）, however same conclusion can not be drawn between HMGB1 with either size of tumour or PR expression （P 〉 0.05） in IDC breast tissue. Spearman analysis showed negative correlation between HMGB1 expression and ER, and positive correlation between HMGB1 expression and clinical staging, lymph node metastasis together with HER-2. Conclusion： It＇s promising that HMGB1 expression in IDC tissue can be one of biological indicators of poor prognosis.