Squamous Cell Carcinomas (SCCs) are the second most common form of skin cancer accounting for approximately 20-25% of skin cancers in Australia.
People who have had organ transplants, or are immunosuppressed for other reasons, are at higher risk of developing SCCs.
SCCs tend to grow much faster than basal cell carcinomas (BCCs) and can occasionally metastasise. They most commonly occur on sun-exposed areas such as the face, ears, scalp, lips and backs of the hands.
Bowen’s Disease (Squamous Cell Carcinoma in situ) is an SCC which has not spread beyond the epidermis (the top layer of skin). They have no risk of spreading to other sites but can develop into an invasive SCC if left untreated. They are usually red, scaly patches and are quite common on lower legs and feet.
Invasive SCCs often appear as a fast-growing pink lump, or wart-like growth, which may have a central ‘crater’. They may also break down, crust, bleed and ulcerate. Occasionally they may be tender, or cause a burning or stinging sensation.