Rodent ulcer; Skin cancer - basal cell; Cancer - skin - basal cell
The best way to prevent skin cancer is to reduce your exposure to sunlight. Ultraviolet light is most intense at midday, so try to avoid sun exposure during these hours. Protect the skin by wearing hats, long-sleeved shirts, long skirts, or pants.
Always use sunscreen:
Examine the skin regularly for development of suspicious growths or changes in:
Also note if an existing skin sore bleeds, itches, is red and swollen (inflamed), or is painful.
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Abeloff MD, Armitage JO, Niederhuber JE, Kastan MB, McKena WG. Clinical Oncology. 3rd ed. Orlando, Fl: Churchill Livingstone; 2004:449-452.
Noble J. Textbook of Primary Care Medicine. 3rd ed. St. Louis, Mo: Mosby; 2001:772-773.