Basal cell carcinoma is a type of skin cancer. It is the most common form of cancer in the United States. Most skin cancers are basal cell cancer.
Basal cell carcinoma is almost always a slow-growing form of skin cancer.
Other common types of skin cancer are:
Basal cell cancer starts in the top layer of the skin called the epidermis. Most basal cell cancers occur on skin that is regularly exposed to sunlight or other ultraviolet radiation.
This type of skin cancer is most common in people over age 40. But it can occur in younger people who have had extensive sun exposure.
You are more likely to get basal cell cancer if you have:
Basal cell cancer grows slowly and is usually painless. It may not look that different from your normal skin. You may have a skin bump or growth that is:
In some cases, the skin is just slightly raised or even flat.
You may have:
Your doctor will check your skin and look at the size, shape, color, and texture of any suspicious areas.
If your doctor thinks you might have skin cancer, a piece of skin will be removed. This is called a skin biopsy. The sample is sent to a lab for examination under a microscope.
A skin biopsy must be done to confirm basal cell skin cancer or other skin cancers.
Treatment depends on the size, depth, and location of the skin cancer, and your overall health.
Treatment may involve any of the following:
Most of these cancers are cured when treated early. Some basal cell cancers return. Smaller ones are less likely to come back. Basal cell carcinoma almost never spreads to other parts of the body.
Basal cell skin cancer almost never spreads. But, left untreated, it may grow (spread) into surrounding areas and nearby tissues and bone.
Call for an appointment with your health care provider if if you have a sore or spot on your skin that changes in:
Also call if a spot becomes painful or swollen or if it starts to bleed or itch.
The American Cancer Society recommends that a health care provider examine your skin every year if you are older than 40 and every 3 years if you are 20 to 40 years old. You should also examine your own skin once a month.
The best way to prevent skin cancer is to reduce your exposure to sunlight. Always use sunscreen and learn how to protect yourself from the sun.
Basal cell skin cancer; Rodent ulcer; Skin cancer - basal cell; Cancer - skin - basal cell; Nonmelanoma skin cancer; Basal cell NMSC
Cockerell CJ, Tran KT, Caruuci J, et al. Basal cell carcinoma. In: Rigel DS, Robinson JK, Ross M, et al., eds. Cancer of the Skin. 2nd ed. Philadelphia, Pa: Elsevier Saunders; 2011:chap 11.
National Cancer Institute: PDQ Skin Cancer Treatment. Bethesda, MD: National Cancer Institute. Date last modified July 20, 2012. Available at http://cancer.gov/cancertopics/pdq/treatment/skin/HealthProfessional. Accessed August 19, 2013.
National Comprehensive Cancer Network. NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines): Basal cell and squamous cell skin cancers. Version 2.2013. Available at http://www.nccn.org/professionals/physician_gls/pdf/nmsc.pdf. Accessed August 19, 2013.
U.S. Food and Drug Administration. FDA press release: FDA announces changes to better inform consumers about sunscreen. Available at http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm258940.htm. Accessed August 19, 2013.
Updated by: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.
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