The extent of melanoma spread and risk of it poses is the staging. There are 4 stages of melanoma.
Also called melanoma in situ. The melanoma is present in the top layer of the skin (epidermis). This has not spread to the deep layer of the skin ( dermis).
Treatment – mole removal
Survival – 100% (full cure)
Stage IA– 2 mm, no ulceration, distant spread(metastases) or spread to lymph nodes
StageIB – Up to 1 mm with ulceration but no distant or lymph node spread
Treatment – mole removal – if more than 1 mm testing the lymph nodes is a possibility ( sentinel node biopsy)
Survival – 5 yr 97%(1A), 92%(1B), 10yr(95%, 86%)
Thick and ulcerated, no lymph gland spread or distant spread ( metastases)
Treatment – Mole removal, lymph node removal, chemotherapy and radiation are possibilities
Survival – 5 yr 81%(2A), 70%(2B), 10yr(67%, 57%)
Any thickness, lymph node spread has occurred
Treatment – Lymph nodes removed, chemotherapy and radiation considered.
Survival – 5 yr 40-78%, 10yr 24-68%
Any thickness, lymph node spread, distant organ spread e.g. lungs, liver, brain and bone.
Treatment – immunotherapy and targeted therapy. Surgery and radiation to relieve symptoms considered.
Survival – 5 yr 15-20%, 10yr 10-15%