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What is stage 4 squamous cell carcinoma?

Diana Meeks
Diana Meeks on behalf of Sigma Nursing
Family Practitioner

Stage 4 squamous cell carcinoma is the fifth and final 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 4 squamous cell carcinoma causes scaly, red patches to form on skin, often in sun-exposed areas like the face and neck. In stage 4, squamous cell carcinoma has spread past the skin and into nearby tissue, bone, lymph nodes, and other organs throughout the body.

Continue Learning about Stage 4 Squamous Cell Carcinoma

How common is stage 4 squamous cell carcinoma?
Dr. Jeanne Morrison, PhDDr. Jeanne Morrison, PhD
It's difficult to determine the exact number of cases of stage 4 squamous cell carcinoma. This is du...
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How do other illnesses affect stage 4 squamous cell carcinoma?
Diana MeeksDiana Meeks
Stage 4 squamous cell carcinoma may impair your body's ability to fight other illnesses. Your lymph ...
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How is stage 4 squamous cell carcinoma diagnosed?
Dr. Jeanne Morrison, PhDDr. Jeanne Morrison, PhD
The first step in diagnosing stage 4 squamous cell carcinoma is usually a physical exam that include...
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What causes stage 4 squamous cell carcinoma?
Dr. Jeanne Morrison, PhDDr. Jeanne Morrison, PhD
Stage 4 squamous cell carcinoma begins in the squamous cells, or keratinocytes, which make up the ou...
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.