Melanoma in situ
Abnormal melanocytes (cells that make melanin, the pigment that gives skin its natural colour) are found in the epidermis (outer layer of the skin). These abnormal melanocytes may become cancer and spread into nearby normal tissue. Also called stage 0 melanoma1.
Melanoma in situ is also called stage 0 melanoma. It means there are cancer cells in the top layer of skin (the epidermis). The melanoma cells are all contained in the area in which they started to develop and have not grown into deeper layers of the skin. Some doctors call in situ cancers pre
cancer15.
