Tumor detection via the sentinel lymph node
What is tumor detection via the sentinel lymph node?
Tumor detection via the sentinel lymph node is a diagnostic procedure used to identify whether cancer has spread from its primary site to nearby lymph nodes. The sentinel lymph node is the first lymph node that tumor cells usually reach when they begin to spread. This method makes it possible to determine whether the cancer has begun to spread and helps to guide the appropriate treatment.
What is the purpose of this procedure?
Tumor detection via the sentinel lymph node is primarily used in:
- Diagnosis of metastasis: to identify the presence of cancer cells in the lymph nodes.
- Breast cancer: it allows for the evaluation of the extent of cancer in patients with breast tumors.
- Melanoma: it is used to determine whether melanoma has spread to the lymph nodes.
- Surgical planning: it helps decide whether a more extensive dissection of the lymph nodes is necessary.
- Reduction of unnecessary procedures: it is used to avoid the removal of multiple lymph nodes if the sentinel lymph node is free of tumor cells.
Benefits of advanced technology in tumor detection via the sentinel lymph node
The procedure uses imaging techniques and tracer substances to locate the sentinel lymph node. These substances may include dyes or radioisotopes that are injected near the primary tumor. Once identified, the sentinel lymph nodes are removed and analyzed in the laboratory to detect the presence of cancer cells.
The procedure for tumor detection via the sentinel lymph node involves:
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Preparation:
Tumor detection via the sentinel lymph node is a procedure that identifies the first lymph node to which the tumor drains. This lymph node, known as the sentinel lymph node, is examined to determine whether cancer cells have spread. The technique is used to guide the doctor in the treatment and avoid unnecessary removal of lymph nodes.
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During the procedure:
During the procedure, the medical team will locate the sentinel lymph node using images obtained through scintigraphy or visual techniques. Then, during surgery, the lymph node will be removed for analysis. The removed lymph node will be sent to the laboratory to determine whether it contains cancer cells. Locating and removing the sentinel lymph node usually takes between 30 minutes and one hour, depending on the case.
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After the procedure:
After the procedure, you will be able to resume your normal activities, unless your doctor advises otherwise. The pathology results will be available in a few days and will be discussed with your treating physician. Based on the findings, the oncologist will adjust the treatment plan, which could include additional surgery, radiotherapy, or chemotherapy.
Recommendations for the procedure
After the tracer injection, it is important to avoid sudden movements and follow the medical team’s instructions to ensure the accuracy of the procedure. Also, be sure to follow all instructions before, during, and after the procedure to ensure both your safety and the effectiveness of the treatment.
Are there any risks?
Tumor detection via the sentinel lymph node is a safe procedure, but may have minimal risks related to surgery:
- Pain or discomfort: at the injection or surgical incision site.
- Inflammation: temporary swelling in the treated area.
- Allergic reactions: although rare, they can occur due to the use of dyes or radioisotopes.
- Infection: low risk at the incision site.
To ensure your procedure runs smoothly, we ask that you arrive before the scheduled time. This will allow us to complete the necessary administrative and clinical preparation.
Before the procedure, we will give you the Informed Consent form, a document with important information that you must read and sign.
If your appointment is for an MRI, it is crucial that you inform us about the presence of pacemakers, metallic objects, prostheses (including dental prostheses), tattoos, or drug infusion devices such as insulin pumps.
These diagnostic tests are very safe, but as with any medical procedure, there is still the unlikely possibility of an incident.
