Stage III Melanoma: Risks of Skipping Chemotherapy - Oncology

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Diagnosed with stage III melanoma?


Hello, my mother is 58 years old and was diagnosed with stage III melanoma six months ago.
It originated from a black mole on the sole of her foot and has metastasized to the lymph nodes in the popliteal fossa.
The doctor mentioned that the excised lymph node was entirely black, indicating that it has likely spread.
Since the surgery, my mother has only returned for follow-up appointments to check the surgical wound, which has healed.
The dermatologist has been urging her to undergo chemotherapy, but my mother insists on not doing anything, believing that since the necessary tissues have been removed, she can forgo further treatment.

I have researched extensively and understand that once lymph nodes are invaded, it officially progresses to stage III.
If chemotherapy is not pursued, is it just a matter of time before it advances to stage IV? If my mother remains adamant about not undergoing chemotherapy and gives up on treatment, based on common clinical responses, how long might it take to reach stage IV? When she does progress to stage IV, what changes or symptoms can we expect in her body? If symptoms arise and she still refuses chemotherapy, what kind of symptoms might develop? As the sole caregiver, I can only prepare for the worst-case scenario...
Thank you, doctor.

Junyi, 30~39 year old female. Ask Date: 2019/09/02

Dr. Chen Sirong reply Oncology


Hello, melanoma has lymph node metastasis.
It is recommended to perform a PET scan (covered by health insurance) to determine if there is distant metastasis for staging purposes, which will help decide on subsequent treatment (pathologically confirmed as stage III, there is actually a high chance that it has already metastasized, which may not necessarily be related to whether chemotherapy is administered).
There is no clear boundary between pathological stage III and clinical stage IV, and it is not possible to predict how long it will take to progress to stage IV.
Stage IV indicates that the tumor has metastasized, with the most likely sites being the brain (weakness, headache, vomiting), lungs (shortness of breath, cough), bones (pain), and liver (jaundice, ascites).
If confirmed by imaging, please consult with a hematology (internal medicine) oncologist to arrange for immunotherapy and targeted therapy.
If the patient insists on refusing treatment, it is recommended to consult with a palliative care specialist for symptom management.
Wishing you peace and health.
Sincerely, Dr.
Kao Chung-Shu, Attending Physician, Department of Radiation Oncology, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2019/09/02

More Info


Understanding Stage III Melanoma: Risks of Skipping Chemotherapy
Melanoma is a serious form of skin cancer that can be particularly aggressive, especially in its later stages. Your mother’s diagnosis of Stage III melanoma indicates that the cancer has spread to nearby lymph nodes, which is a critical point in the disease's progression. The fact that the lymph nodes were described as "black" suggests significant involvement, which can lead to a higher risk of further metastasis if not treated appropriately.

Chemotherapy is one of the treatment options for melanoma, although it is not always the first line of treatment. In recent years, targeted therapies and immunotherapies have become more common and effective for melanoma. However, chemotherapy may still be recommended, especially if there is a concern about the cancer spreading further.

If your mother chooses to forgo chemotherapy, it is important to understand the potential consequences. Skipping chemotherapy or any recommended treatment can lead to a progression of the disease. While it is difficult to predict an exact timeline for when Stage III melanoma might progress to Stage IV (metastatic melanoma), it is generally understood that the risk of progression increases significantly when treatment is not pursued.
In terms of symptoms, Stage IV melanoma can present with a variety of signs depending on where the cancer spreads. Common sites of metastasis include the lungs, liver, brain, and bones. Symptoms may include:
1. Fatigue: A general feeling of tiredness that does not improve with rest.

2. Weight Loss: Unintentional weight loss can occur as the body struggles to cope with the cancer.

3. Pain: Depending on where the cancer spreads, your mother may experience localized pain, particularly if it spreads to the bones or organs.

4. Respiratory Issues: If the cancer spreads to the lungs, symptoms may include shortness of breath, cough, or chest pain.

5. Neurological Symptoms: If the cancer spreads to the brain, symptoms may include headaches, seizures, or changes in mood and behavior.

As the disease progresses, the symptoms can become more severe and debilitating. It is also important to note that the psychological impact of a cancer diagnosis can lead to feelings of hopelessness or despair, which can further complicate treatment decisions.

As the primary caregiver, it is understandable that you are concerned about your mother’s health and the potential progression of her disease. It may be beneficial to have an open and honest conversation with her about her fears and the importance of treatment. Sometimes, involving a healthcare professional, such as an oncologist or a palliative care specialist, can help provide clarity and support for both you and your mother.

In summary, while it is ultimately your mother’s decision regarding her treatment, it is crucial to understand the risks associated with skipping chemotherapy for Stage III melanoma. The likelihood of progression to Stage IV increases without treatment, and the symptoms associated with advanced melanoma can significantly impact her quality of life. Encouraging her to consider all available options and discussing her concerns with her healthcare team may help her make a more informed decision.

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