Intraepidermal Epidermotropic Metastatic Melanoma: It usually appears as a melanotic spot on the skin of the body. It occurs mainly in young people and the face is the most common site. It is considered an early form of in situ melanoma.
Lentigo Maligna Melanoma: Its occurrence is more common in older people and in places that have been exposed to sunlight for years. It appears as a flat melanchromatic lesion, which increases in size over time. Initially it extends horizontally, and at a later stage it begins to extend vertically. At this stage it forms the malignant invasive melanoma. It can take on colourations from white or grey, to dark brown or black.
Superficial Spreading Melanoma: The initial appearance of this melanoma is a flat spot that slowly turns into a papule. It is characterised by the formation of nodules as it expands into the deeper layers of the skin and the appearance of a brown, black, grey or white colour. It has an irregular periphery and extends horizontally.
Nodular Melanoma: It starts as a papule and turns into a nodule and subsequently, it progresses and bleeds. It appears on the skin in the form of a shiny, usually black lump and mainly affects men. It should be diagnosed quickly because in the nodule stage, it already starts to metastasize.
Malignant melanoma of the extremities: It is seen on the feet (mainly the soles), on the palms or under the nails (subcutaneous melanoma). The clinical picture is characterised by the appearance of a black irregular line under the nail and redness and swelling near the skin (Hutchinson’s sign). On the palms and soles it looks like a nevus. During the progression of this melanoma, the person may experience pain, or notice ulceration and bleeding.
Desmoplastic Melanoma: It is the rarest form of melanoma and occurs mostly in older people. It occurs due to the formation and accumulation of nodules or plaque. It mainly affects the face and neck. Unfortunately, it is the most difficult form of melanoma to treat, as most of the time, once it appears, it cannot be cured.
Amelanotic Malignant Melanoma: It may resemble a scar, pyogenic granuloma or hemangioma and is usually colorless, although in some cases it shows a characteristic pinkish tint.