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Sentinel lymph node mapping


Sentinel lymph node mapping - to evaluate regional lymph nodes. This approach allows the surgeon to identify and biopsy the first or "sentinel" lymph node which the cancer encounters as it spreads to the regional lymph nodes. If the sentinel lymph node is free of cancer, studies show that all lymph nodes in that region are free of cancer and complete lymph node removal is unnecessary.
Two hours before the operation the radiologist injects a nuclear isotope around the melanoma or breast cancer and 45 minutes later obtains a nuclear scan to determine the "hot" sentinel lymph nodes to which the isotope has spread. Fifteen minutes before the operation begins, the surgeon injects a blue vegetable dye around the tumor site which also helps identify the lymph nodes. In the operating room, the melanoma or breast cancer is excised first and then the sentinel lymph node is identified. Using a hand-held Geiger counter, the surgeon pinpoints the sentinel lymph nodes beneath the skin and makes a small incision over them. Using the Geiger counter and visualizing the blue dye which has spread to the sentinel lymph nodes, the surgeon can isolate and remove these with minimal dissection. This completes the surgery and only if subsequent studies demonstrate metastatic tumor in the sentinel lymph nodes will complete lymph node removal be recommended Preoperative lymph node mapping and lymph node biopsy (removal) and combined with wide excision of the local melanoma or breast cancer will often be the only surgical procedure required.

I had the mapping done the day before my surgery. They drew on me with black texta and put plastic bandages on the crosses. The old way you lost all of your nodes. Which does cause problems. This is amazing now they take the suspicious nodes and a few more!

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