Melanoma – once the cancer is found in your skin, it is necessary to find its stage. In general, the stage of melanoma is measured from the size of the tumor and the presence of cancerous cells in any lymph nodes or other parts of the body: lungs, brain, spinal cord, liver or bone. Your oncologist can use the result of the biopsy to determine the stage of the cancer.
- Melanomain Situ – also called stage 0, this is the genesis of the cancer cells; your five-year survival chance is about 99.9%.
- Stage I – at this stage, the melanoma is invasive; although it is well localized, the cancer can spread into other areas of your body. Your survival chance is less than 95%.
- Stage II – stage 2 is considered as a high risk melanoma; the cancer can spread to other areas of the body, and survival chance is about 40-85%.
- Stage III – at stage 3, the cancer is more aggressive; the risk of regional metastasis is higher; survival chance is estimated at 25-60%.
- Stage IV – your survival chance has decreased considerably to 9-15%; the cancer is often associated with distant metastases.
- Stage IV – at stage 4, the tumor has become more aggressive; the cancer has spread beyond your skin to other organs, such as your lungs, liver and bone. survival chance has decreased considerably.
Squamous cell carcinoma – In general, squamous cell carcinoma develops in three stages:
- Stage I – at stage 1, the cancer remains superficially in the tissue where it originates; chances of surviving is very high.
- Stage II – a stage 2, the squamous cell carcinoma has infiltrated deeply into the tissue of the skin, and it is associated with a high risk of recurrence in cases of limited surgery. Loco-regional invasion may also occur, particularly in the pelvis. In addition, the cancer may have affected the bone tissue surrounding the tumor.
- Stage III – at this stage, the cancer has become more aggressive with high risk of lymph node metastases; survival chance decreases significantly. Without a prompt and effective treatment, the cancer can travel though the bloodstream to form other tumor in surrounding or distant areas from the tumor: lungs, liver, brain or bone.