Then a special camera is used to watch the radioactive material move from where the melanoma was biopsied to the group of lymph nodes the melanoma is most likely to travel to first. Lymphatic Mapping (Lymphoscintigram) usually involves injecting radioactive dye in the skin around the site of the original melanoma. A wide local excision is generally performed at the same time. The SLNB has two parts, a radiology test called lymphatic mapping and a surgical procedure. The melanoma has spread to distant organs (Stage IV).It is already known that melanoma is in the lymph nodes ( Stage III).The melanoma is less than 0.76mm with no other risk features.There is lymphovascular invasion (seeing cancer cells in the lymphatic channels or blood vessels).The margins taken during the biopsy are positive for melanoma.There is an ulcerated tumor of any thickness.The melanoma is equal to or greater than 1.0mm in depth.SLNB is generally considered when one or more of the following are true: The sentinel lymph nodes are the first of those lymph nodes to receive drainage from the primary tumor, and therefore the ones most likely to have melanoma cells if any of them have spread. If the melanoma has spread, it will usually spread to the lymph nodes nearest the area of the primary melanoma. SLNB is a specialized procedure performed to determine whether any melanoma cells have spread to the lymph nodes. The Role of The Sentinel Lymph Node Biopsy (SLNB) ![]() Costs of Participating in Clinical Trials.Risks of Participating in Clinical Trials.Ocular Melanoma Prevention & Early Detection.
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