View clinical trials related to Lymphatic Metastasis.
Filter by:Axillary lymph node status is one of the most important prognostic factors in primary breast carcinomas. Sentinel lymph node biopsy has been increasing in post neoadjuvant setting when axillary nodes show good clinical and radiological response. It allows to determine the axillary lymph node status, which if negative, saves the patient from axillary dissection (AD) and its potential complications. To assess tumor response to neoadjuvant chemotherapy in the SLN, pathological evaluation is the gold standard. Response to neoadjuvant systemic therapy is an excellent predictor of outcome, and achievement of pathological complete response (PCR) in the SLN is a prognostic predictor of long-term outcome with significantly better disease-free survival and overall survival. Post-treatment isolated tumor cells (ITCs) and micro metastases predict worse survival compared with the same findings in the non-neoadjuvant setting. Histologically partial response to therapy, is characterized by small clusters and individual tumor cells set in hyaline stromal fibrosis. Most false negative cases had metastatic foci identified exclusively on permanent sections and are not due to a true diagnostic interpretation error. The timing of further axillary surgery, immediate or a subsequent operation should be routinely discussed at centers using intraoperative assessment of the sentinel lymph nodes, along with the potential for negative intraoperative findings and positive nodes on final pathology.
Rising thyroid carcinoma rates, with papillary thyroid carcinoma (PTC) as the main type (85-90% of cases), often show early cervical lymph node spread. This increases the risk of PTC patients for recurrence and death. A new study's multimodal model fuses preoperative US and cytology images to better predict lymph node metastasis, aiming to improve treatment plans, reduce unnecessary surgeries, and enhance patient outcomes.
This clinical trial evaluates the use of an imaging scan (18F-rhPSMA-7.3 positron emission tomography [PET]/magnetic resonance imaging [MRI]) for identifying patients who are at risk of having their disease spread to the lymph nodes in those undergoing radical prostatectomy for prostate cancer that has not spread to other parts of the body (localized). Prostate specific membrane antigen (PSMA) PET/computed tomography (CT) has emerged as an option to stage newly diagnosed high risk prostate cancer patients. PSMA PET/CT has demonstrated improved diagnostic accuracy for identifying metastasis. PET is procedure in which a small amount of radioactive glucose (sugar) is injected into a vein, and a scanner is used to make detailed, computerized pictures of areas inside the body where the glucose is used. Because cancer cells often use more glucose than normal cells, the pictures can be used to find cancer cells in the body. MRI is procedure in which radio waves and a powerful magnet linked to a computer are used to create detailed pictures of areas inside the body. These pictures can show the difference between normal and diseased tissue. This study may help researchers learn whether 18F-rhPSMA-7.3 PET/ MRI may improve predicting which patients are at risk of lymph node metastases and who are suitable candidates for pelvic lymph node dissection in patients with localized high-risk prostate cancer undergoing radical prostatectomy.
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.
Lymph node metastasis (LNM) is a major prognostic factor in intrahepatic cholangiocarcinoma (ICC), and accurate preoperative prediction of the presence or absence of LNM has significant clinical implications in determining treatment strategy. Despite this, there are currently no reliable biomarkers established to detect LNM in ICC. This study seeks to develop a liquid biopsy assay that can accurately detect LNM before treatment in ICC patients.
This is a single center, prospective and observational study conducted in three stages to predict the NSCLC lymph node metastasis based on ctDNA/specific methylation molecular features combined with PET-CT imaging features and intervention study.
Aim of the study will be to investigate if Endoscopic Ultrasound (EUS) with elastography can be purposed between the routine staging examinations in patients with pancreatic adenocarcinoma without distant metastasis for the staging of lymph nodes status ("N" in TNM classification) - in RESECTABLE pancreatic cancer the investigators will evaluate the concordance with EUS elastography and histological findings of lymph nodes obtained during surgery, in order to assess the sensibility, specificity and the positive and negative predictive value of EUS with elastography, the disease-free survival, the percentage of metastatic patients and the overall survival (in patients with or without metastatic lymph nodes). - in "BORDERLINE resectable" and UNRESECTABLE non-metastatic ("advanced" locally") disease, the investigators will evaluate if the malignant lymph nodes samples during EUS with elastography and fine needle aspiration (FNA) will be related to a decreased survival. Secondary aim will be to register the prognosis (in terms of survival) of the patients with para-aortic and mediastinal pathological lymph nodes (related to a decreases survival in some series in literature)
In our prior research, a risk scoring model for the occurrence of lymph node metastasis in patients who underwent radical gastrectomy for gastric cancer was established. To further validate this scoring model, a prospective study has been designed with the aim of prospectively assessing the model's clinical applicability.
The goal of this retrospective cohort analysis is to discover the impact of the involvement extent of tumor-draining lymph nodes (TDLNs) in patients who received neoadjuvant immunochemotherapy. The main question it aims to answer is the role of TDLN in the prediction of treatment effectiveness. Researches will compare tumor-draining lymph nodes metastasis (mTDLNs) group and non-draining lymph nodes metastasis (mNDLNs) group to see whether different metastatic patterns of mediastinal lymph nodes can indicate the treatment effectiveness.
The object of this study is to develop a model for prediction of lymph node metastasis among intrahepatic cholangiocarcinoma (ICC) patients. Intrahepatic cholangiocarcinoma is the second most common kind of primary liver cancer, accounting for approximately 10%-15%. There is a lack of agreement regarding the necessity of performing lymph node dissection (LND) in patients with ICC. Currently, the percentage of LND is below 50%, and the rate of sufficient LND (≥6) has plummeted to less than 20%. Consequently, a large proportion of patients are unable to acquire LN status, which hinders the following systematic treatment strategies after surgery:. Therefore, our objective is to construct a LN metastasis model utilizing machine learning techniques, including patients' clinical data and pathology information, with the goal of offering a reference for patients who have not undergone LND or have had inadequate LND.