Note: The information on cancer types on the ACRF website is not designed to provide medical or professional advice and is for information only. If you have any health problems or questions please consult your doctor.
Squamous Cell Skin Cancers are more likely than basal cell cancers to grow into deeper layers of skin and spread to other parts of the body, although this is still uncommon.
Around 20% of Skin Cancers are squamous cell cancers, also known as Squamous Cell Carcinomas. They usually appear on sun-exposed areas of the body such as the face, ears, neck, lips, or backs of the hands. They can also develop in scars or chronic skin sores elsewhere.
Squamous cell carcinomas usually appear as growing lumps, often with a rough, scaly, or crusted surface. They may also look like flat reddish patches in the skin that grow slowly. They tend to occur on sun-exposed areas of the body such as the face, ear, neck, lip, and back of the hands. Less often, they form in the skin of the genital area.
Small Squamous Cell Skin Cancers can usually be cured with the following methods and the recurrence rate is similar to that for basal cell skin cancers.
Larger squamous cell cancers are harder to treat, and the chance of recurrence for fast-growing cancers can be as high as 50% for large, deep tumours. In rare cases, squamous cell skin cancers may spread to lymph nodes or distant sites. If this happens, further treatment with radiation therapy and/or chemotherapy may be needed.
Different types of surgery can be used to treat squamous cell skin cancers. Excision is regularly used to treat squamous cell skin cancers, whilst curettage and electrodesiccation are useful methods for treating small, thin tumours (less than 1cm across).
Mohs Surgery has the highest cure rate and is particularly useful for squamous cell skin cancers larger than 2cm across or with poorly defined edges. It is also useful for skin cancers that have come back after other treatments, tumours that are spreading along nerves under the skin, and for cancers on certain areas of the face or genital area.
Radiation therapy can be a good option for patients with large squamous cell skin cancers, especially in areas where surgery would be difficult or for patients who may not be able to tolerate surgery. It is not used very often as an initial treatment in younger patients due to the possible risk of long-term problems.
Radiation therapy can be sometimes used in conjunction with surgery, if all of the cancer was not removed. It can also treat cancers that have returned and have become too large or deep for further surgery.
Cryosurgery is used for some early squamous cell skin cancers, especially in people who cannot have surgery, but it is not recommended for larger invasive tumours.
If a squamous cell skin cancer is advanced, the following treatment options may be necessary:
Removing nearby lymph nodes is recommended for some large or deeply invasive squamous cell skin cancers and in cases where the lymph nodes feel enlarged and/or hard. After the lymph nodes are removed, they are looked at under a microscope to see if they contain cancer cells. In some cases, radiation therapy might be recommended after surgery.
Systemic chemotherapy is an option for patients with squamous cell skin cancer that has spread to lymph nodes or distant organs. In some cases it is combined with surgery or radiation therapy.
Fortunately, most squamous cell cancers can be cured with fairly minor surgery or other types of local treatments.
persons were diagnosed with non-melanoma skin cancer in 2013
is the estimated 5-year survival rate
years is the median age of diagnosis
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Cancer in Australia 2017, Australian Institute of Health and Welfare
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