Squamous cell carcinoma is a form of skin cancer. It is the second most common form of skin cancer.
The cancer develops in the uppermost layer of skin cells. Squamous cell carcinoma usually grows slowly. It is rarely fatal if treated early. However, the cancer can be lethal if it spreads beyond the skin.
Cancer occurs when cells in the body divide without control or order. Eventually these uncontrolled cells form a growth or tumor. The growths invade and take over nearby tissue. It is not clear exactly what causes these problems in the cells but is probably a combination of genetics and environment.
Areas of skin that are damaged have higher risk of cancer. Skin that is regularly exposed to the sun is most likely to develop skin cancer. Squamous cell carcinoma may also develop in skin that has scars, burns, or exposure to chemicals or radiation.
Factors that increase your risk of developing squamous cell carcinoma include:
Your doctor will ask about your symptoms and medical history. A physical exam will be done.
The doctor will look at the skin growth. A sample of the growth will be taken and examined for cancer cells. This examine will help determine the stage and type of the cancer. Your doctor will use this information to guide treatment and make a prognosis.
Talk with your doctor about the best treatment plan for you. Options include:
For people who are not able to have surgery, other treatment options include:
To reduce your chances of getting squamous cell carcinoma, take these steps:
American Academy of Dermatology
American College of Mohs Micrographic Surgery
The Skin Cancer Foundation
Canadian Dermatology Association
Canadian Cancer Society
Jerant A, Johnson J, Sheridan CD, Caffrey T. Early detection and treatment of skin cancer. Am Fam Physician. 2000 Jul 15;62(2):357.
Saraiya M, et al. Preventing skin cancer. MMWR. 2003 Oct 17;52(RR15):1-12. Available at: http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5215a1.htm. Accessed November 10, 2012.
Squamous cell carcinoma. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/what. Updated December 6, 2012. Accessed March 28, 2013.
Squamos cell carcinoma. American Academy of Dermatology website. Available at: http://www.aad.org.... Accessed March 28, 2013.
Last reviewed February 2013 by Brian Randall, MD
Last Updated: 3/28/2013