Stage I melanoma is the thinnest form of the disease, with no spread to the lymph nodes or other parts of the body (metastasis). At this stage the cancer cells are only in the first two layers of …

With Stage 1 melanoma, cancer has grown into the dermisof the skin, or second layer and is still small and hasn’t spread. Learn about prognosis, treatment and follow-up care.

Learn what the different stages of melanoma mean, from stage 0 to stage 4 metastatic melanoma and what factors doctors use to determine how advanced a melanoma is.

Stage 0 melanoma (melanoma in situ) has not grown deeper than the top layer of the skin (the epidermis). It is usually treated by surgery (wide excision) to remove the melanoma and a …

Stage I melanoma is local melanoma, meaning it has not spread beyond the primary tumor. Stage I melanoma is invasive melanoma, as are Stage II, III, and IV; Stage 0 is not considered …

Oct 14, 2022 · This article will explain stage 1 melanoma, including what stage 1 means. It will also discuss the risks, symptoms, diagnosis, and treatment of stage 1 melanoma.

• Stage 1A melanomas are ≤1.0 mm thick with or without ulceration, representing the earliest and most favorable form of melanoma. • Stage 1B melanomas include tumors >1.0-2.0 mm thick …

Nov 9, 2025 · Usually, a stage 1 melanoma is treated by surgical removal of the cells and about 1 cm to 2 cm of skin surrounding them. Depending on the location of the melanoma, most …

Stage 1 means the melanoma is only in the skin. There is no sign that it has spread to lymph nodes or other parts of the body. Surgery is the main treatment for stage 1 melanoma skin …

Aug 16, 2025 · Stage 0 cancers are the least serious, while stage IV melanomas are hardest to treat. Cancer in this stage hasn’t grown outside the top layer of your skin. Your doctor probably …