Skin cancer stages are part of a vital system that is used to determine prognosis, survival, and treatment plans. Multiple variables factor into stage determination, and usually varies among cancer types. The most commonly used classification system is the TNM system, which looks at particular tumor characteristics and grades them X,0,1,2,3, or 4 with the larger numbers indicating increasing category severity. T stands for tumor and includes things like the tumor’s location, size, and depth. N stands for node, and describes whether the cancer has spread to the lymph nodes, locally or farther away. M is for metastasis, which is the spreading of cancer to distant parts of the body. With the values for T, N and M determined, those are combined and an overall stage grouping is assigned.
Determination of Skin Cancer Stages- What You Need to Know
When diagnosis occurs, the tumor is assigned a stage of 0 to IV. This staging happens at diagnosis, and does not change regardless of tumor growth or shrinking. Throughout skin cancer treatment, it is referred to as the stage as initially diagnosed with notes or additions to indicate chances. The beginning of the skin cancer progression is with a single, confined tumor. Stage 0- This initial phase of the skin cancer stages indicates that cancerous growth is confined only to the top layer of skin, also called the epidermis. The cancerous cells have not spread, and stage 0 can usually be cured by surgery. Also referred to as carcinoma “in situ,” meaning simply that cancer cells are present, but in the same place they started to develop. With continued growth, we are lead to Stage I Stage I- Stage I skin cancer has cells that have grown deeper into the skin, but have not spread to lymph nodes or other body parts. The indicative feature of stage one is the tumor is 2 cm across, with only one, or no, high risk features. High risk features may include:- Growth into the lower dermis
- Has a thickness of more than 2mm
- Abnormal microscopic appearance, lacking differentiation
- Tumor began on the lip or ear
- Cancer growth seen in the perineural area (the space around a nerve)