The Risk of Recurrent Melanoma After Treatment: What Patients Ne - WBCB: The Valley's CW |

The Risk of Recurrent Melanoma After Treatment: What Patients Need to Know

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“Melanoma is not a typical cancer in any way, shape, or form,” says Jeffrey Weber, MD, PhD, medical oncologist and melanoma researcher at Perlmutter Cancer Center at NYU Langone Health. “Depending on how thick it is, and how many different qualities it has, it can have a very high risk of relapse, even after the surgeon takes it out.”

Compared to other skin cancers, melanoma is the most likely to metastasize, or spread to other parts of the body beyond the skin, and this can make it difficult to eradicate all cancer cells.

For metastatic melanoma, doctors will use surgical excision to cut out the visible melanoma tumor and adjuvant therapy to treat melanoma within the body. Newer types of adjuvant therapies, such as immunotherapy and targeted therapy, have been more effective at killing cancer cells in patients with metastatic melanoma. Adjuvant therapy “prolongs the time to return the tumor, it reduces the risk of relapse, [and] it clearly prolongs the survival of the patient,” says Dr. Weber.

Unfortunately, some cancer cells may survive the treatment, and over time they may multiply and develop into a new tumor, according to the American Academy of Dermatology (AAD). This new melanoma growth is a recurrence.

How Common Is Recurrent Melanoma?

Recurrence of melanoma is mostly likely within the first five years after treatment, according to the AAD. Beyond 10 years, it is much less likely for melanoma to recur, but there have been instances of recurrence after as much as 25 years (but this is not common).

A 2013 study by the American College of Surgeons found that melanoma recurrence after 10 years affects about 6 percent of patients. The study also found that those who had recurrence after 10 years were likely to live longer than those who experienced melanoma recurrence within the first three years.

Risk Factors for Melanoma Recurrence

“Patients who have a familial history of melanoma are automatically at a higher risk [for] getting melanoma,” says Kaveh Alizadeh, MD, melanoma surgeon. “If you combine that with the environmental impact of increased sun exposure, that puts you at a higher risk.”

As mentioned before, recurrent melanoma is more likely if the cancer has metastasized. This means melanoma has spread to lymph nodes and possibly other organs, and metastasis is a marker of advanced or stage IV melanoma. Once melanoma affects the lymph nodes, it can more easily spread throughout the body (and is more difficult for treatment to target effectively).

In addition to metastasis, certain melanoma features may also increase the risk of recurrence, such as if the melanoma:

  • Is thick (greater than 4 mm)
  • Is ulcerated (like a bleeding, open sore)
  • And/or is surrounded by other melanomas.

Preventing Melanoma Recurrence

Catching melanoma early and removing it via surgical excision immediately is one of the best ways to prevent melanoma recurrence. “You can dramatically improve your rate of clearing the cancer if you go ahead with the excision in the first 30 days after the diagnosis,” says Dr. Alizadeh.

Nothing can completely guarantee prevention of melanoma recurrence. Certain lifestyle habits, such as wearing sunscreen and eating a healthy diet, may help keep the body and immune system strong to help fight possible recurrence. Learn more tips to reduce the risk of melanoma recurrence.

Attending your regular follow-up appointments after melanoma treatment and doing skin self-checks are two crucial habits for melanoma survivors. Catching melanoma early—whether recurring or the first time—helps improve treatment outcomes.


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