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Skin Cancer

A skin cancer diagnosis can be a worrying time for patients, friends and family, thankfully due to earlier detection most skin cancers are cured. If you have suffered from skin cancer previously then you will be at higher risk of developing more skin cancers, therefore it is very important for you to inspect your skin regularly and seek expert advice should you find anything suspicious. It may help to photograph any moles that look unusual so you can easily check for any changes; this will also help to improve the accuracy of the diagnostic process.

The aim of this page is to provide you with accurate information about skin cancer, its various types and appearances. If you are concerned that you may have skin cancer, it is very important to seek medical advice, as with all types of cancer, skin cancers are easiest to deal with when they are caught at an early stage. Our Consultant Dermatologists are experts in skin cancer diagnosis and treatment and for the majority of people a consultation can provide rapid reassurance.

The most important risk factors for the development of skin cancer are sun exposure and skin type. In general the more sun exposure (especially sunburn) and the fairer your skin type (especially those who burn easily and tan with difficulty) the greater your risk of skin cancer. People with outdoor occupations are often at significant risk of suffering from skin cancer because they can be exposed to the sun for long periods of time. Sun bed use especially before the age of 30 has been shown to significantly increase the risk of skin cancer. Skin cancer occurs because the ultraviolet (UV) radiation within sunlight damages the DNA in skin cells and causes uncontrolled growth of abnormal cells. Sun protection is very important in reducing the risk of skin cancer.

Skin cancer is broadly divided into two types; melanoma and non-melanoma skin. Non-melanoma skin cancers are common and usually easily cured, melanoma skin cancer is far less common but can be more serious especially if they are not caught at an early stage.

There are two main non-melanoma skin cancers: Basal Cell Carcinoma and Squamous Cell Carcinoma.

Basal Cell Carcinoma

Basal Cell Carcinoma (BCC) is the commonest type of skin cancer and is commonly known as a rodent ulcer. They are slow growing and don’t spread to other parts of the body, they occur mot frequently on the sun-exposed areas of the head and neck.

Features of Basal Cell Carcinomas include;

  • Smooth lump
  • Pearly or shiny appearance
  • Slow growing
  • Typically develop a crust or scab which eventually falls off but recurs
  • Sometimes bleed
  • Never completely heal
  • Develop into a painless ulcer

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Squamous Cell Carcinoma (SCC)

This type of cancer usually occurs and develops on areas of the body that have been damaged by overexposure to the sun, therefore it mainly occurs on the face, scalp, neck, arms, hands and lower legs.

Symptoms of Squamous Cell Carcinomas include;

  • Hard skin coloured or red lump
  • Often have a hard, crusty cap or plug
  • May grow rapidly over a period of weeks
  • Tender to touch
  • Can develop as a non-healing ulcer

Melanoma

Melanoma is the most serious of the skin cancer types because of the possibility of it spreading to other areas of the body.

Because melanoma arises from the pigment producing cells (moles) in the skin, melanomas are usually pigmented and can present as a changing mole or a new pigmented lesion within previously normal skin. Early detection is extremely important so we encourage you to check your skin regularly as the earlier the diagnosis, the better the prognosis.

Signs to look out for within a mole

  • Change of colour especially black, blue or white colours
  • Change in size
  • Change in shape
  • Ugly duckling sign (where the mole looks different to other moles and “stands out from the crowd”

Mole scanning can be used to monitor moles and detect any early change of melanoma

Prevention of skin cancer

If you are at risk of skin cancer due to excessive sun exposure or if you have previously had treatment for skin cancer, it is extremely important that you protect yourself from the sun to minimise the risk of further skin cancers.

Staying out of the sun all year round is impractical and most often, not possible. Some suggestions on the best ways to protect your skin from overexposure to the sun are as follows:

  • Wear clothing that offers good protection against the sun.
  • Wear a wide-brimmed hat to protect your face and neck.
  • Use sunglasses in strong sunlight.
  • Use sun cream with a sun protection factor of at least 30 whenever you are exposed to the sun. Remember to reapply, especially after swimming.
  • Avoid sunburn.
  • Minimise exposure to the sun during the hottest part of the day, which is usually between 11am-3pm.
  • Regularly check your skin for any changes.

 

Information

For more information on Skin Cancer and how to prevent a second occurrence, visit our Skin Cancer Patient Information Guide.