Watch the video: the biopsy of the knot

The more thick skin cancer is the risk of spreading it to the lymphatic nodes, unless the lymph nodes are apparently enlarged by physical examination or graphic tests, the only way to determine is exactly whether the cancer spread to the lymph nodes, the removal of the lymph nodes. What the depleted lymph fluid of skin cancer filters in some skin, the tumor cells can move in more than one direction within the lymphatic system, and there is more than a single light lymph node to determine the location of the knot or lymph nodes before surgery. Radio material is injected into the skin around the original cancerous tumor in the skin. The body that occurs for a few minutes after the injection is diagnosed with the position of the explosive knot to look at the explosive knot during surgery. The surgeon sprays a blue dye into the skin around the location of the cancerous tumor in the skin. Like the radioactive substance, the blue dye is also through the lymph channels in the explosive knot. The knot and send it to a pathology specialist who dissects it in small pieces. Each piece is examined under a microscope in search of skin cancer cells. Special spots are used to see even a small number of cancer cells. The other nodes are surgically removed in the same area to ensure that they do not contain skin cancer cells.