Melanoma is a type of skin cancer which can spread to other organs in the body. Melanoma is the 5th most common cancer in the UK and 1/4 of cases are diagnosed in those under 50. It often starts as the appearance of a new mole or changes in an existing mole. It is most commonly found on the back, legs, arms or face but any area of skin can be affected. The affected skin will appear discoloured and have an irregular shape. They might be larger than normal moles or can feel itchy or bleed. 70% of melanomas are superficial spreading but other types include: Nodular Melanoma (fast developing and most common in middle-aged people. Doesn’t always occur from an existing mole and often in areas which aren’t regularly exposed to the sun); Lentigo malign melanoma (most common in elderly people who spend a lot of time outdoors. They are common on the face and grow for a number of years); Actual lentigious melanoma (rare melanoma which appears on the palms and soles of hands and feet. The most common melanoma in people with darker skin. In general, in the UK, African and Asian people rarely get superficial spreading melanoma).
Moles which are getting bigger, changing in shape or colour, have an irregular shape, become itchy or bleed are highly likely to be a melanoma.
Rarely, melanoma can develop in the eye. People will notice a dark spot or changes in vision but this is often diagnosed in a routine eye examination.
UV light is the most common cause of skin cancer. A specific wave length UVB is thought to be the main cause. The most common source of UV light is sunlight, although those who use tanning beds are at an increased risk of melanoma because they are exposed to UV light that way.
People who have many moles on their body are at a high risk of getting a melanoma, especially if the moles are over 5mm in diameter. Therefore, it is important to monitor moles frequently.
Other risk factors which increase your chance of developing melanoma include: Pale skin, red or blonde hair, blue eyes, Increased number of freckles, immune suppression from medication or condition such as HIV and a previous cancer diagnosis.
Surgery is the most common treatment for melanoma, especially those in stages 1-3. The surgery is usually carried out under local anaesthetic and is often done in combination with a skin graft to remove the amount of scaring. Those in stage 2 or 3 might also have a biopsy of sentinel or lymph nodes. If the cancer has spread to nearby nodes, further surgery might be needed to remove them - a procedure known as lymphadenectomy. Once the melanoma has been removed, you will have follow-up appointments to check recovery and see if there are many signs of the melanoma returning.
Those with stage 4 melanoma might no be able to be cured but will be given treatment in the hope that is slows cancer’s growth, reduces symptoms and extend life expectancy. Radiotherapy and drug treatments might also be offered.
Radiotherapy might be used after an operation to remove lymph nodes or relive the symptoms of stage 4 melanoma. It uses controlled doses of radiation to kill cancer cells. It is done in a hospital daily with rest days at the weekend. Radiotherapy can cause tiredness, nausea, hair loss, sore skin and loss of appetite.
There are also some new medications which can be used to treat melanoma. Medications include Vemurafenib, Ipilimumab, Nivolumab but these are not suitable for everyone and many people are entered into clinical trials to receive the medication.
This article is for information only and should not be used for the diagnosis or treatment of medical conditions. Doctify Limited has used all reasonable care in compiling the information but makes no warranty as to its accuracy. Consult a doctor or other health care professional for diagnosis and treatment of medical conditions. In the event of an emergency, please call 999 for immediate assistance.