Skin cancer can be of different types, but the most dangerous one is surely melanoma that develops in the epidermis of the skin. The melanocyte cells in the epidermis are affected by the multiplication of these cells, which if, goes on to meet uncontrollable levels, can affect the largest organ of your body adversely. All nearby tissues can be destroyed by growing cancer, and it can also spread to many other parts of the body. Other names of the cancer are malignant melanoma and cutaneous melanoma of the skin. As the cancerous bodies attack the pigment lending cells in your skin, discoloration of skin and formation of patches can occur. Melanoma skin cancer is classified into 4 types- nodular, superficial spreading, acral lentiginous, and lentigo maligna.
1. Superficial Spreading Melanoma
Of all melanoma skin cancers, superficial spreading melanoma is the most commonly occurring one. Around 70% of all melanoma skin cancers are made up by this type. Superficial spreading melanoma usually grows outward to spread across the skin surface. Vertical growth can also happen in the case of superficial spreading melanoma. It has an uneven border with a flat and thin growth on the skin. Superficial spreading melanoma can, in some cases, develop from a mole that already exists on the skin, and it could have various colors as well. Blue, brown, grey, black, and red are the common colors in which these moles appear on the skin.
2. Nodular Melanoma
Around 15-20% of all melanoma skin cancers are nodular melanoma, making it the second most common type. This grows and spreads much faster than the other types of melanoma skin cancer, and it develops its structure down into the skin. A raised growth that protrudes from the skin in the shape of a mushroom with a stem is the sign of this type of cancer. It could be of different colors; it usually appears in black, but it could also be pink, red, or the same color of your skin.
3. Lentigo Maligna Melanoma
Older people are most likely to fall prey to this cancer, which makes up around 10-155 of all melanoma skin cancers. A large, flat tan or brown patch that grows with an uneven border is the sign of lentigo maligna melanoma. It could have several shades of black or brown, which gets darker as it develops. What starts off as a growth in the outer layer of the epidermis will grow outward across the skin surface. This could go on for years before which the growth will start to develop down into the skin.
4. Acral lentiginous Melanoma
This type of melanoma most commonly appears in the dark-skinned people. Although it makes up only 5% of all melanoma skin cancers, it is common in certain parts of the world. Discolored skin with a flat spot that grows darker with time is the sign of the acral lentiginous melanoma. This type of cancer also grows like the lentigo maligna melanoma. It is usually seen on the palms of hands, under the nails, and on the soles of the feet.