Who Gets Skin Cancer and Why?
Anyone can develop skin cancer, regardless of skin type, race, or age. However, certain factors can increase the risk:
- Excessive Sun Exposure: The primary cause of skin cancer is ultraviolet radiation from the sun, which is abundant in Australia, especially in beachside communities.
- Fair Skin: Individuals with fair skin that freckles easily, light-coloured hair, and light eyes have less melanin and are more susceptible to UV damage.
- Multiple or Atypical Moles: A large number of moles or unusual-sized or shaped moles can increase risk.
- Family History: Genetics can play a significant role in susceptibility to skin cancer.
- Outdoor Lifestyle: Spending a lot of time outdoors without adequate sun protection heightens exposure.
- Previous Radiation Treatments: Therapeutic radiation treatments, such as those for adolescent acne, can increase risk.
Prevention is key when it comes to reducing the risk of skin cancer with regular skin examinations essential. Getting to know your skin and examining it regularly so you can identify any unusual changes early, and for anything suspicious it’s important to consult a plastic surgeon or dermatologist promptly. Additionally, adopting sun protection measures can significantly lower your risk, this includes using broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak sun hours to minimize exposure to harmful ultraviolet rays.
Types of Skin Lesions
Skin lesions can be categorized into benign, pre-cancerous, and cancerous lesions, each requiring different levels of attention and treatment.
Benign lesions: Non-cancerous growths that have no potential to develop into cancer. These may include moles—common skin growths that are usually harmless—skin tags, which are small, soft pieces of skin that protrude on a thin stem, and lumps like cysts or other non-cancerous lumps beneath the skin. While they are generally harmless, these lesions may be removed for cosmetic reasons or if they cause discomfort.
Pre-cancerous lesions: Exhibit early changes that could potentially develop into malignant skin cancers if left untreated. Examples of these include actinic keratoses, which are rough, scaly patches caused by sun damage, and squamous cell carcinoma in situ (Bowen’s Disease), an early form of SCC confined to the top layer of the skin. Early intervention is crucial for pre-cancerous lesions, and treatments may involve topical medications, cryotherapy, or surgical removal to prevent progression to cancer.
Cancerous lesions: Malignant growths that require prompt treatment due to their potential to spread and cause serious harm. The three main types of skin cancer in Australia are basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and melanoma. Each of these cancers has distinct characteristics and varying degrees of aggressiveness, but all necessitate immediate medical attention to ensure the best possible outcome.
Types of Skin Cancers
While there a numerous types of skin cancers that occur all over the body, the three main types of skin cancers Dr Turner treats regularly are:
01.
Basal Cell Carcinoma (BCC)
By far the most common type of skin cancer is basal cell carcinoma, which fortuitously has the best cure rate with surgery. They are slow growing lesions, and rarely spreads to other areas of the body. If left untreated however it can grow beneath the skin and erode underlying tissues, including bone causing serious damage and requirement for extensive surgery to both treat the cancer and reconstruct the defect.
Characteristics:
- Pearly or waxy bumps, often flesh-coloured or pink.
- May have visible blood vessels or central ulceration.
- Commonly appears on sun-exposed areas like the face, ears, neck, and hands.
- May bleed easily and not heal properly.
02.
Squamous Cell Carcinoma (SCC)
Squamous cell cancers are more aggressive than BCC; they grow faster and occur in older people. It presents as a scaly, quickly growing pink lump, which may also bleed and ulcerate. They occur mostly in sun-exposed areas, such as the face and backs of the hands. It sometimes spreads to distant sites, including lymph nodes and internal organs. Surgical treatment will usually be curative if diagnosed in its early stages, if left untreated can be life threatening.
Characteristics:
- Firm, red nodules or flat lesions with a scaly, crusted surface.
- Often develops on sun-exposed areas such as the face, ears, neck, lips, and backs of the hands.
- May develop from pre-cancerous lesions like actinic keratoses.
03.
Melanoma
Australia has the highest rate of melanoma in the world. While melanoma it is the least common of the three skin cancers, it is the deadliest. Melanoma mostly occurs on sun exposed skin but can occur anywhere. It may develop from an existing mole or appear as a new brown, red or black spot which changes and grows. Fortunately, if diagnosed early, most melanomas can be cured with surgical treatment. Treatment usually requires wider excision of the lesion and the possibly of have lymph nodes sampled as well.
Characteristics:
- May develop from an existing mole or appear as a new spot.
- Features asymmetry, irregular borders, multiple colours, and larger diameter.
- Can occur anywhere on the body, not just sun-exposed areas.
- Follows the ABCDE rule: Asymmetry, Border irregularity, Colour variation, Diameter over 6mm, Evolving shape or size.
Surgical Treatment Options
Skin cancers can be treated by a number of methods, depending on the type of cancer and its location on your body. These range from simple creams through to surgical excision and reconstructive procedures. However most skin cancers are best removed surgically, as the cancer will be sent to the pathologist to ensure it has been completely removed.
Treatments of complex skin cancers, or those that occur in cosmetically sensitive areas, such as the face require considerable expertise to ensure the best outcome is achieved. Specialist Plastic Surgeons like Dr Turner are regarded as the best at performing these procedures as they have extensive training to provide the best functional and cosmetic outcome.
After removal of a skin cancer a ‘defect’ may be left, as it may not be possible to simply stitch the wound closed. This requires reconstruction by employing many different plastic surgery techniques, the most common techniques including:
Skin grafts
This involves taking some skin from another location to fill the defect. It relies on new blood vessels to grow into it the graft for it to ‘take’ and needs to be protected during this phase. The final cosmetic result takes much longer than with a skin flap.
Skin flaps
This involves moving some skin around to either fill a defect that is either too large or to achieve a better cosmetic outcome. Because the skin flap is usually moved from an adjacent area, the characteristics of the skin are closely matched and hence give a superior cosmetic outcome.
Importance of Follow-Up and Skin Surveillance
No matter what type of skin cancer you have had, it’s essential to have a follow-up plan for monitoring both the treated area and detecting any new lesions. Regular skin surveillance involves:
- Self-Examinations: Regularly checking your skin for any changes or new growths.
- Medical Check-Ups: Scheduling routine appointments with your local GP, dermatologist or Dr Turner Specialist Plastic Surgeon.
- Lymph Node Monitoring: Notifying your doctor if you notice any lumps in areas like the neck, armpits, or groin.
Early detection of recurrence or new skin cancers significantly improves treatment outcomes.