View clinical trials related to Lymphatic Metastasis.
Filter by:Surgical lymph node dissection is the key to advanced gastric cancer. In recent years, after the overall implementation of standard D2 dissection, lymph node dissection for gastric cancer began to explore the direction of D1+ again. Current clinical studies of gastric cancer lymph node dissection based on intraoperative fluorescence navigation show that non-tumor specific lymph node fluorescence navigation surgery can only increase the total number of lymph nodes detected and ensure the completion of the dissection but not the accuracy. The sensitivity and specificity of the tracer metastatic lymph nodes are 56.3% (410/728), respectively. Specificity 46.1% (2669/5785). Tumor specific tracing of positive lymph nodes is the key to achieve accurate lymph node dissection for gastric cancer. Although tumor specific tracers are developing rapidly and related clinical studies are gradually being carried out, there are few reports on specific clinical studies on lymph node metastasis, suggesting that lymph node tracing is still a difficult problem. Previous basic studies have suggested that integrins play an important molecular biological role in the process of tumor lymph node metastasis. In the early stage, 99mTc3PRGD2 SPECT-CT showed good lymph node imaging effect in lung cancer and breast cancer, and 99mTc-oncoFAPI PET-CT also showed good lymph node imaging effect in gastric cancer. Therefore, this study aims to explore the application prospect of 99mTc3PRGD2 and other probes in molecular imaging of gastric cancer metastatic lymph nodes and guidance of lymph node dissection and tracer, so as to accumulate preliminary clinical data for exploring corresponding fluorescent probes for intraoperative tracer of gastric cancer lymph nodes.
The purpose of this study was to compare the efficacy of surgical dissection of supraclavicular lymph nodes combined with radiotherapy versus radiotherapy alone in patients with ipsilateral supraclavicular lymph node metastasis.
This study is an open label, prospective, experimental, randomised clinical trial. The primary aim of this study is to determine whether it is feasible to randomise vulvar cancer patients into one of two treatment arms:1) surgical groin node dissection (as delivered though either a sentinel node biopsy or inguinofemoral lymph node dissection (IFL), or 2) serial high-resolution bilateral groin ultrasound surveillance and clinical examination every 2 months.
Lung cancer patients undergoing upfront surgery, highly benefit from a systematic lymph node dissection in the mediastinum and in the surgical specimens. The latter is performed by the pathologist. Developing a standardized technique to dissect the lobectomy specimen has the potential of maximizing the retrieval of all N1 stations lymph nodes. The investigators believe that the adoption of such technique will improve lung cancer staging and identify a higher number of patients that qualify for adjuvant therapies.
Patients with suspected breast cancer undergoing PET/CT at our hospital. The PET/CT center's chief physician and senior attending physician reviewed the films together and disagreement, if any, was resolved by consensus. The lesion was visually identified. A 3D region of interest(ROI) of the lesion was automatically outlined using the 40% threshold method, and PET metabolic parameters were measured . Breast lesions with radionuclide concentrations greater than those in normal breast tissue are considered to be breast cancer lesions, while lymph nodes with radionuclide concentrations greater than those in muscle tissue are considered to be metastatic lymph nodes. Image segmentation: Image segmentation was performed using ITK-SNAP software (4) (version 3.6.0, http://www.itksnap.org/), Brush Style: circular, Brush Size: 10, Brush Options: 3D. The entire tumor volume was outlined on the PET image as ROI for segmentation. An open source Python package (PyRadiomics version 3.0.1(5)) was used to extract the radiomics features from the ROI. Univariate and multivariate binary logistic regressions were used to construct model for predicting lymph node metastasis in breast cancer.
The project is proposed based on multimodal ultrasonic imaging omics building used for accurate prediction of the breast cancer and axillary lymph node metastasis load artificial intelligence forecasting model, this method can dig the hidden features of ultrasonic image is not visible to the naked eye, make up the subjectivity in the process of clinical doctors in diagnosis and treatment, provide accurate, objective basis for clinical decision making.
Epithelial ovarian cancer (EOC) remains the tumour with the most unfavourable prognosis within the field of gynaecological oncology. The incidence of ovarian cancer in the Netherlands in 2008 was 14.5 per 100.000, with 12.3 deaths per 100.000. In the US in 2007 the incidence was 13.0 per 100.000 and there were 8.2 deaths per 100.000. The high mortality rate is partially due to the fact that approximately 75% of patients is diagnosed with advanced stage EOC. The remaining 25% of patients are diagnosed in an early stage, which require a complete surgical staging procedure including pelvic and para-aortic lymphadenectomy. Although this lymphadenectomy is standard-of-care, it leads to significant morbidity in these patients. Mainly direct postoperative complications such as infection, repeat surgery and early death have been reported. Also, long-term complications such as lymph cysts or lymphedema have been described. A potential method to reduce this morbidity and mortality, as already been described in other cancers such as breast cancer and vulvar cancer, is utilizing a sentinel lymph node (SLN) technique. By identifying and resecting the SLN, the patient is potentially spared form lymphadenectomy.
A study to investigate if pelvic side wall lymph nodes that remain after neo-adjuvant chemoradiotherapy can be identified intraoperatively using dual radioisotope and fluorescence guidance.
Bladder cancer is one of the most frequent malignant tumors of the urinary system in China, seriously threatening the life safety of patients. The main treatment methods for bladder cancer include surgical resection, radiotherapy and chemotherapy, immunotherapy, and targeted therapy, among which surgical resection is still the only reliable radical treatment at present. Lymphatic metastasis is the main mode of metastasis of bladder cancer, and preoperative diagnosis is of great significance to determine whether radical surgical treatment can be performed for some patients with advanced bladder cancer. Recent studies reveal that exosomes, as key signaling molecules in the tumor microenvironment, have been confirmed to be associated with various tumor progressions. Our previous study showed that lncRNA-ELNAT1 highly expressed in urine exosomes of bladder cancer patients can promote lymphatic metastasis of bladder cancer by inducing lymphatic angiogenesis, and is associated with poor prognosis of patients. However, whether exosome ELNAT1 can be used as an independent preoperative predictor of lymph node metastasis of bladder cancer needs to be explored in further clinical trials, and this study will further clarify the association between the two. In this study, urine exosomes were collected from positive and negative control patients with lymph node metastasis of bladder cancer, and the ROC curve was statistically analyzed and fitted to determine whether exosome ELANT1 could be used as an independent predictor of lymph node metastasis of bladder cancer.
Report the incidence of metastases to the splenic hilar lymphnodes from splenic flexure primaries. This mode of spread has not been previously characterized for these tumours.