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Lymphnode mapping breast

M Gherghe, C Bordea, Al Blidaru
BACKGROUND: Identification and biopsy of the sentinel lymph node (SLN) in early-stage breast cancer (T1-T2N0) has become the standard method in the surgical treatment of the axilla, due to its accuracy in the evaluation of axillary lymph node status,thus avoiding extensive axillary lymph node dissection inpatients with negative SLN. The aim of our study is to highlight the role of 99mTc-nanocolloid lymphoscintigraphy in the preoperative lymphatic mapping, especially for SLN localizations outside the axilla, as well as the benefits of this technique in the accurate staging of breast cancer...
January 2015: Chirurgia
M Aubele, A Mattis, H Zitzelsberger, A Walch, M Kremer, P Hutzler, H Höfler, M Werner
To evaluate the potential cytogenetic heterogeneity in breast carcinoma, several small cell groups (each consisting of 20 to 50 cells) were investigated within paraffin sections. By laser-microdissection, three to seven cell groups were taken per case. The DNA was amplified by degenerate oligonucleotide primed PCR (DOP-PCR), and the samples were analyzed by CGH for chromosomal gains and losses. Two ductal invasive breast carcinomas, one of them with two lymphnode metastases, were investigated. To compare the results from the small samples, CGH was also performed on DNA isolated from the tumorous regions of three to five serial sections (10(7) to 10(6) cells)...
April 15, 1999: Cancer Genetics and Cytogenetics
R K Schmutzler, A Homann, E Bierhoff, O D Wiestler, A von Daimling, D Krebs
OBJECTIVE: Loss of heterozygosity (LOH) indicates the existence of tumor suppressor genes (TSG) in the affected chromosomal loci. In order to uncover the involvement of such genes, we analyzed LOH in different chromosomal regions of sporadic breast carcinomas. MATERIAL AND METHOD: 47 breast cancer patients were screened for LOH with microsatellite markers on 18 different loci. DNA fragments were amplified by PCR from tumor and reference tissue. The PCR products were run on 8% denaturing polyacrylamide gels and visualized by silver straining...
1995: Gynäkologisch-geburtshilfliche Rundschau
V Pesce Delfino, C Giardina, R Lenoci, R Ricco
A simulation model of mammary lymphatics has been realized by a computerized system to draw a tridimensional map of all lymphnode stations (axillary, supraclavear and internal mammary lymphnodes) draining from the breast. The purpose was to identify the minimal routes between tumor and lymphnodes and among different nodal points that represent lymphnodes of the lymphatic net situated at various distance from tumor. A simulation of node metastatization has been performed giving to every route of the model a different weight represented by the distance between the nodes...
November 30, 1984: Bollettino Della Società Italiana di Biologia Sperimentale
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