Nonmelanoma skin cancer may appear as a change in the
skin, such as a growth, an irritation or sore that does not heal, or a change
in a mole or a skin growth.
Basal cell carcinoma usually affects the head, neck, back, chest, or shoulders. The
nose is the most common site. Signs of basal cell carcinoma can vary depending on the type and may
include skin changes such as a:
Note: Separate PDQ summaries on Skin Cancer Prevention, Skin Cancer Treatment, and Levels of Evidence for Cancer Screening and Prevention Studies are also available.
The only widely proposed screening procedure for skin cancer is visual examination of the skin, including both self-examination and clinical examination.
In asymptomatic populations, the effect of visual skin examination on mortality from nonmelanomatous skin cancers is unknown. Further, the evidence...