Skin cancer is mainly caused by ultraviolet (UV) radiation from the sun, but other sources of UV radiation such as sunlamps and tanning booths may also be a cause. Basal cell carcinoma, Squamous cell carcinoma and Melanoma are three main subtypes of skin cancer and they each vary in their appearance and ability to spread to other parts of the body.
The most common type of skin cancer is Basal cell carcinomas; this type of skin cancer is slow growing, rarely spreads to other parts of the body, and is most commonly found on the face, scalp, ears, chest, back and legs. The following are the most typical features of basal cell carcinomas: [pic]
- A shiny bump that is pearly or translucent, blood vessels may be seen on the surface
- An open sore that bleeds, heals up and recurs again
- A scar like area that is white, yellow or waxy and has poorly defined edges
A board certified dermatologist should evaluate any skin condition with the above-mentioned characteristics immediately.
Squamous cell carcinomas (SCC) can be found anywhere on the skin and has the ability to spread to other areas of the body. SCC can arise from a pre-cancerous lesion called an actinic or solar keratosis. Actinic keratosis can appear as rough and scaly patches with a red or inflamed base and can progress to SCC. Just as with Basal cell carcinoma, lesions with similar characteristics mentioned for SCC should be evaluated by a board certified dermatologist immediately.
Melanoma is the most serious form of skin cancer. Melanomas can occur anywhere on the body, but is most commonly found on the back and legs and has the highest skin cancer potential to spread to other parts of the body. For characteristics of melanoma please read under moles & birthmarks.
Appropriate diagnosis begins with detection by a board certified dermatologist followed by a skin biopsy. For any skin cancer, treatment can involve both medical and surgical procedures depending on the type of cancer, location, if it has spread to other areas of the body and the individual. Therapeutics includes excisional surgery, Mohs micrographic surgery, radiation, photodynamic therapy, and chemotherapy. |