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Surgery plays a crucial role in the management of melanoma skin cancer, a potentially aggressive form of cancer that originates in the cells responsible for producing skin pigment. Surgical procedures are commonly used to remove the primary melanoma tumour as well as nearby lymph nodes, if necessary, in order to prevent the spread of cancer cells. Surgery offers the potential for a complete cure, particularly in the early stages of the disease when the melanoma is localised. In this article, we will explore the various surgical approaches employed in the treatment of melanoma skin cancer, discuss the goals and considerations of surgery, and highlight the importance of individualised treatment plans in achieving the best outcomes for patients. By understanding the role of surgery in melanoma treatment, individuals can make informed decisions and participate actively in their healthcare journey.
Definitive treatment by wide excision
Definitive treatment for primary cutaneous melanoma often involves wide excision, a surgical procedure aimed at completely removing the primary cutaneous melanoma, along with a margin of healthy tissue surrounding it. This approach ensures that all cancer cells are removed and reduces the risk of recurrence. The width of the excision margin depends on the thickness and characteristics of the melanoma, as determined by the pathology report. The doctor carefully plans the excision to achieve clear margins and may take into consideration the depth of invasion, the location of the melanoma, and other factors. Wide excision is typically performed under local anaesthesia, and the procedure can vary in complexity depending on the size and location of the melanoma. Following wide and complete excision, the excised tissue is sent to the pathology laboratory for further examination to confirm that the entire tumour has been removed. This definitive treatment approach offers the best chance of curing melanoma, particularly when the cancer is detected in its early stages.
Skin graft and skin flap
In cases where the excision of a melanoma requires a larger removal of tissue, skin grafts or skin flaps may be utilised to close the wound and promote healing. Skin grafting involves taking a thin layer of healthy skin from another part of the body, typically from an area hidden or less noticeable, and transplanting it onto the excision site. This graft adheres to the wound and provides a new layer of skin to aid in the healing process. On the other hand, skin flaps involve transferring adjacent healthy tissue, along with its blood supply, to cover the excised area. Skin flaps are more complex procedures that can provide a better match in terms of colour, texture, and contour to the surrounding skin. Both skin grafts and skin flaps are useful techniques in reconstructing the surgical defect after melanoma excision, during wound heals, ensuring adequate wound closure, and optimising cosmetic outcomes while preserving functionality. The choice between skin grafting and skin flaps depends on the size and location of the excision, as well as the individual patient’s needs and preferences.
When is assessment of regional lymph nodes indicated?
Assessment of regional lymph nodes is indicated in cases of metastatic melanoma to determine if the cancer has spread beyond the primary tumour site. The presence or absence of metastasis to the regional lymph nodes is a crucial factor in determining the stage of melanoma and guiding treatment decisions. Evaluation of regional lymph nodes particular to metastatic melanoma is typically performed through a process known as sentinel lymph node biopsy (SLNB), which involves identifying and removing the sentinel lymph node—the first lymph node to which cancer cells are likely to spread from the primary tumour. SLNB is sometimes recommended when the melanoma is thicker or exhibits other high-risk features, such as ulceration or lymphovascular invasion. By examining the sentinel lymph node for the presence of cancer cells, doctors can accurately assess the extent of the metastatic melanoma, and formulate an appropriate treatment plan.
Sentinel Lymph Node Biopsy (SLNB)
Sentinel Lymph Node Biopsy (SLNB) is a procedure for the staging of melanoma. It is performed to determine an early stage melanoma and whether cancer cells have spread to the regional lymph nodes from the primary melanoma site. During Sentinel Lymph Node Biopsy (SLNB), a radioactive tracer or a blue dye is injected near the melanoma, which helps identify the sentinel lymph node—the first lymph node that cancer cells are likely to reach. The lymph nodes is then surgically removed and examined by a pathologist to check for the presence of cancer cells. If cancer is detected in the sentinel lymph node, it may indicate that the disease has spread beyond the primary tumour site, warranting further evaluation and treatment. Lymph node dissection plays a role in determining some adjuvant therapies. This procedure allows for a more accurate assessment of the extent of the disease, helping healthcare professionals tailor treatment plans to individual patients and improve overall outcomes.
Management of in-transit metastases
The management of in-transit metastases in melanoma requires a multimodal approach aimed at controlling the spread of cancer cells and improving patient outcomes. In other cancer treatments in-transit metastases refer to the spread of melanoma cells to the skin or lymphatic vessels between the primary tumour and regional lymph nodes. Treatment options for in-transit metastases localised melanoma include:
1. Local Therapies:
Local therapies target the visible or palpable in-transit metastases and aim to destroy or remove the tumour cells.
2. Regional Therapies:
Regional therapies are utilised when in-transit metastases are extensive or not amenable to local treatments. These therapies involve delivering treatment to a specific region large area of skin on the body, typically the affected limb. Isolated limb perfusion (ILP) and isolated limb infusion (ILI) are examples of regional therapies where high doses of chemotherapy drugs are directly infused into the blood supply of the affected limb to target the in-transit metastases.
3. Immunotherapy:
Immunotherapy has revolutionised the treatment of advanced in melanoma patients, including in-transit metastases. Drugs such as immune checkpoint inhibitors (e.g., pembrolizumab, nivolumab) or targeted therapies (e.g., BRAF and MEK inhibitors) can enhance the immune response against cancer cells or target specific mutations in the tumour cells, respectively.
4. Radiation Therapy:
Radiation therapy may be the main treatment employed to treat in-transit metastases that are not amenable to surgery or other local therapies. It involves using high-energy X-rays or other radiation sources to target and destroy cancer cells. This can help reduce the size of the lesions, relieve symptoms, and improve local control.
5. Clinical Trials:
Participating in clinical trials can provide access to novel therapies and treatment approaches that are being investigated for in-transit metastases. These trials aim to evaluate new drugs, combination therapies, or innovative treatment modalities to improve outcomes for patients.
The management of in-transit metastases in melanoma requires a personalised approach tailored to the individual patient’s characteristics, extent of disease, and overall health. Multidisciplinary collaboration involving dermatologists, surgical oncologists, medical oncologists, and radiation oncologists is crucial in determining the most suitable treatment strategy. Regular follow-up and close monitoring of patients are necessary to assess treatment response, manage potential side effects, and detect any recurrence localized melanoma or new metastases.
What Happen After Melanoma Excision?
After undergoing melanoma surgery, it is essential to follow a comprehensive post-operative care plan to promote healing, prevent complications, and support your overall recovery. Here are some important steps to take after your melanoma surgery:
1. Wound Care:
Follow your doctor’s instructions regarding wound care. Keep the surgical site clean and dry, and avoid any activities that may put strain on the incision area. Change dressings as instructed, and monitor surgical excision often for signs of infection, such as increased redness, swelling, or drainage.
2. Pain Management:
It is common to experience some discomfort or pain following surgery. Your doctor may prescribe pain medication or recommend over-the-counter pain relievers to help manage post-operative pain. Follow the prescribed dosage and inform your doctor if the pain becomes severe or persists.
3. Follow-Up Appointments:
Attend all scheduled follow-up appointments with your surgeon. These visits are crucial for monitoring your healing progress and assessing the need for additional treatment or surveillance.
4. Lymphedema Prevention:
If you underwent lymph node dissection as part of your melanoma surgery, you may be at risk of developing lymphoedema—a swelling of the limbs due to impaired lymphatic drainage. Follow your healthcare professional’s instructions to prevent lymphoedema, which may include specific exercises, wearing compression garments, and practising good skin hygiene.
5. Sun Protection:
Protect your skin from the harmful effects of the sun. Cover the surgical site with clothing or a wide-brimmed hat, and apply a broad-spectrum sunscreen with a high SPF regularly. Avoid prolonged sun exposure, especially during peak hours.
6. Emotional Support:
Coping with a melanoma diagnosis and undergoing surgery to remove it can be emotionally challenging. Seek support from loved ones, join support groups for other cancer treatments, or consider counselling to help manage any emotional distress you may experience.
7. Surveillance and Self-Examinations:
After melanoma surgery, it is crucial to remain vigilant and perform regular self-examinations of your skin. Monitor for any changes in existing moles or the development of new suspicious lesions. Report any concerning changes promptly to your healthcare professional.
Remember, each person’s recovery journey is unique. If you have any concerns or questions during your post-operative period, do not hesitate to reach out to your healthcare team. Adhering to your doctor’s instructions, maintaining a healthy lifestyle, and staying proactive in your ongoing care can contribute to a successful recovery and minimise the risk of recurrence.
Follow up
Following melanoma treatment, regular follow-up appointments are essential to monitor your recovery, assess treatment effectiveness, and detect potential recurrence or new lesions. The frequency and duration of follow-up visits may vary depending on the stage and characteristics of your melanoma, as well as your individual risk factors. During these appointments, your healthcare team typically conducts a thorough physical examination, review your medical history, and may order additional tests, such as imaging studies or blood work. They will closely examine your skin, including the surgical site and surrounding areas, to check for any signs of recurrence or new melanomas. It is crucial to report any concerning changes in existing moles or the appearance of new skin lesions between appointments. Additionally, your healthcare provider will provide guidance on sun protection, self-examinations, and lifestyle factors that can help reduce the risk of melanoma recurrence. Regular follow-up visits not only allow for ongoing surveillance but also provide an opportunity to address any questions or concerns you may have, ensuring comprehensive care and promoting your long-term health.