Superficial Spreading Melanoma is the most common type of melanoma, representing about 70% of all cases. As its name suggests, it spreads along the epidermis for a period of months to years before penetrating more deeply into the skin. The melanoma appears as a flat or barely raised lesion, often with irregular borders and variations in color. Lesions most commonly appear on the trunks of men, the legs of women, and the upper back of both sexes. The earliest sign of a new superficial spreading melanoma is darkening in one part of a pre-existing mole or the appearance of a new mole on unaffected normal skin.
