Melanoma death rates vary by stage, but overall survival is improving due to early detection and new treatments, with five-year survival rates around 94% in Australia, though mortality is higher for advanced stages. In the US, localized melanoma has a 99% 5-year survival, while disseminated (Stage 4) is 25%, though newer therapies are changing these numbers. Australia has high incidence but relatively low mortality, with recent estimates around 1,300 deaths annually.
Almost everyone (around 100%) with stage 1 melanoma skin cancer will survive their cancer for 5 years or more after they are diagnosed.
Because stage IV melanoma is often hard to cure with current treatments, people may want to think about taking part in a clinical trial. Many studies are now looking at new targeted drugs, immunotherapies, and combinations of different types of treatments.
Most experts, including the National Cancer Institute, say that a person becomes a survivor from the moment they learn of their cancer diagnosis – for the duration of their life. However, not everyone who has received a melanoma diagnosis considers themselves to be a survivor.
Stage II melanoma extends beyond the epidermis (very outer layer of skin) into the thicker dermis layer of the skin. It is thicker than Stage I melanoma and is slightly more likely to metastasize. There is still no evidence that Stage II melanoma has spread to the lymph tissues, lymph nodes, or body organs.
Doctors have known for decades that melanoma and many other cancer types tend to spread first into nearby lymph nodes before entering the blood and traveling to distant parts of the body.
The 5 key signs of melanoma, often remembered by the ABCDEs, are Asymmetry (uneven halves), Border irregularity (jagged edges), uneven Color (multiple shades), Diameter larger than a pencil eraser (about 6mm), and Evolving (changing in size, shape, color, or symptoms like itching/bleeding). Also watch for a sore that doesn't heal, new dark streaks under nails, or unusual sensations like itching or pain in a mole.
Best defense: Lifelong skin exams and UV protection
After surgery, melanoma can come back in three ways. Melanoma can come back at, or close to, the place it originally started, this is called a local recurrence. In this case it is usually felt as a nodule on or near your original scar. The nodule may feel as if it is sitting on top of the skin or under the skin.
In many instances, treatment for basal cell or squamous cell skin cancer removes the cancer entirely. But more advanced skin cancers may never go away completely, which requires ongoing treatment with chemotherapy, radiation therapy, or other approaches to keep the cancer from spreading.
Antioxidants and Melanoma
Studies show selenium-rich diets may also reduce risk for melanoma and support survivorship. Foods rich in this antioxidant include Brazil nuts, scallops, lobster, barley, oats, whole wheat, wheat germ and milk.
Melanoma risk is influenced by genetics, but it isn't strictly hereditary in the same way as some cancers, like BRCA-associated breast and ovarian cancer. Dr. Arbesman has recently shown that 10% - 15% of patients with melanoma carry significant gene variants in cancer susceptibility genes.
Chemotherapy does not work as well for melanoma as other treatments like targeted medicines and immunotherapy. But it might be used if you're unable to have other treatments.
If you've had melanoma skin cancer, you should avoid spending too long in the sun. Your doctor may suggest you use a high sun protection factor (SPF) sunscreen on any exposed skin.
The average age of people when it is diagnosed is 66. But melanoma is not uncommon even among those younger than 30. In fact, it's one of the most common cancers in young adults (especially young women). For survival statistics, see Survival Rates for Melanoma Skin Cancer by Stage.
Main causes of melanoma skin cancer
Ultraviolet (UV) light is the most common cause of melanoma. It comes from the sun and is used in sunbeds. Melanoma is more common in older people, but younger people can also get it.
Knowing if chemotherapy follows Mohs surgery depends on cancer spread; learn more. You won't usually need chemotherapy after Mohs surgery. It's often sufficient for treating skin cancers. However, rarely, if the cancer has spread or is very aggressive, you might need other treatments, like chemotherapy.
Malignant melanoma referral guidelines
Urgently refer (appointment within two weeks) if: a person presents with a suspicious pigmented skin lesion that has a weighted seven-point checklist score of three or more. OR a dermoscopy suggests malignant melanoma of the skin.
You usually have it as an outpatient, under local anaesthetic. This means you're awake for the operation but have an injection to numb the area. Your doctor uses stitches or clips to close the area where they remove the tissue. This can feel a little tight at first.
Of the patients with melanoma, 10 857 (12.1%) developed 1 or more subsequent primary cancers. The overall risk of a subsequent primary cancer increased by 28% (observed to expected [O:E] ratio=1.28). One quarter of the cancers were subsequent primary melanomas (O:E=8.61).
Cohen and the research team have been able to show that melanoma patients with diets rich in fiber had an almost fivefold greater chance of responding to immunotherapy compared to patients with diets low in fiber.
The most important warning sign of melanoma is a new spot on the skin or a spot that is changing in size, shape, or color. Another important sign is a spot that looks different from all of the other spots on your skin. (This is sometimes known as "the ugly duckling sign.")
Common symptoms of melanoma include:
A new or unusual mole, blemish, or sore. A spot that looks different from others on your skin ("the ugly duckling") Changes in the size, shape, or color of a mole. Itching, tenderness, or pain in a mole or lesion.
The 7PCL was revised in 1989 to identify three major signs (change in size, shape and/or colour) and four minor signs (inflammation, crusting/bleeding, sensory change, diameter ≥7 mm) for suspected malignant melanoma; the scoring was weighted (2 for major, 1 for minor signs), and again, any lesion scoring ≥3 warranting ...