What is stage 0 squamous cell carcinoma?

Diana Meeks
Diana Meeks on behalf of Sigma Nursing
Family Practitioner

Stage 0 squamous cell carcinoma is the first stage of development of a relatively common type of skin cancer. It begins in the squamous cells, or keratinocytes, which are the major cells that make up the outer layer of skin. Stage 0 squamous cell carcinoma causes scaly, red patches to form on skin, often in sun-exposed areas. During stage 0, squamous cell carcinoma is easily treatable because it hasn't spread past the topmost layers of skin, but it can spread to other areas of the body if it's left untreated.

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