tumor sentinel lymph node imaging

The first station lymph node of lymphatic drainage in the tumor area is called the sentinel lymph node (SN) of the tumor. Preoperative confirmation of the presence or absence of tumor metastasis in SN is of great significance in determining the surgical procedure and lymphatic dissection of the tumor, and the identification and localization of SN is the key to determine the success of SN biopsy. Should be at rest and use sedatives if necessary. In addition, the breast is a part of the female's privacy. Before doing all the tests, the patient must explain the purpose and method of the examination, and obtain the consent and cooperation of the patient. Basic Information Specialist Category: Oncology Inspection Category: Radionuclide Applicable gender: whether men and women apply fasting: fasting Tips: Please check the expedition to the undergraduate room on the same day. Normal value Dynamic imaging observation of lymphatic drainage in the local area of ​​the tumor can be used to calibrate the lymph nodes that are first developed in the local area of ​​the tumor. Clinical significance Abnormal results: Tumor SN imaging was mainly used for the localization of early breast cancer and melanoma SN biopsy. If there is no tumor metastasis in the SN, the probability of tumor metastasis of the distal lymph node is extremely low, and only local tumor resection is needed. If there is tumor metastasis in the SN, the probability of distal lymph node metastasis is greatly increased, except for local tumors. In addition to the resection, lymphatic dissection in the corresponding lymphatic drainage area is required. Therefore, SN imaging and biopsy provide an objective basis for determining the surgical procedure and lymphatic dissection of tumor patients. People who need to be examined: breast cancer and melanoma patients can be examined. Precautions Forbidden before inspection: Please check the expedition to the undergraduate room on the same day. Requirements for inspection: should be at rest and use sedative if necessary. In addition, the breast is a part of the female's privacy. Before doing all the tests, the patient must explain the purpose and method of the examination, and obtain the consent and cooperation of the patient. Inspection process The radioactive colloidal particles injected intradermally, subcutaneously or around the tumor site will be drained along the local lymphatic channel to the surrounding lymph nodes, and the local lymphatic drainage can be visualized by dynamic imaging to identify the local tumor area. The first developed lymph node, the SN of the tumor. The combination of local dye injection or intraoperative hand-held gamma detector for SN biopsy can improve the success rate of SN biopsy. Not suitable for the crowd Inappropriate crowd: generally not. Adverse reactions and risks Nothing.