It is a form of melanoma, which is characterized by its place of origin: sole, palm or under the nail (subungual melanoma). It is common on the feet than in the hands. It seems de novo in the skin of normal appearance, or it can be developed within the existing melanocytic nevi (moles) range.
1Acral Lentiginous melanoma
Acral Lentiginous melanoma begins to expanding slowly as a flat patch of discolored skin. Initially remaining cancer cells in the tissue of origin, the epidermis. It is the stage of melanoma in situ, which can last for months or years.