Basal cell carcinoma has a variable look, and the subtler forms can be tricky to distinguish from other non-cancerous spots you might see on your skin. Below are images that show some of this variation in appearance.
The following images show some more unusual presentations:
Watermarked images courtesy of DermNetNZ,org. For more information, see https://creativecommons.org/licenses/by-nc-nd/3.0/nz/legalcode