These formations can arise on healthy skin, as "ex novo" formations, or originate from existing or recently appeared lesions, which evolve in a neoplastic sense.
Compared to benign moles, malignant nevi have some characteristics that make them "atypical" both to the naked eye and to dermatoscopic examination.
To identify these lesions as soon as possible, attention should be paid to any changes in shape (malignant moles are often asymmetrical, with jagged edges and / or notches) and appearance (they bleed, itch or appear discontinuous over time). The color of malignant moles is not uniform, but turns towards a dark pigmentation (very intense black) or shows red-brown, white, black or blue shades. An increase in width and thickness may also indicate a "neoplastic evolution of the lesion, especially if this alteration occurs in a rather short time.
Unfortunately, it is not always easy to realize these changes, so the correct practice to follow is to undergo periodic dermatological checks, to assess the presence of any malignant moles. Prevention and early diagnosis are the most effective strategies for managing melanoma and other skin cancers that can result from the transformation of these pigmented lesions. Furthermore, this approach can significantly improve the chances of cure.
and favor the transformation from benign to malignant.
The main clinical significance of malignant moles, on the other hand, consists in their potential ability to transform and behave like skin cancers, particularly serious due to their aggressiveness.
, localized, partially raised or flat papules or nodules.
