Moles arise when pigmented cells or melanocytes form clusters. We usually have them between 10 and 40 and continue to appear until the quarantine.
The moles are formed by grouping the melanocytes, the skin cells that make the substance that pigments, melanin. "They do not really have any physiological function, just like warts and other lesions," explains Javier Pedraz, a dermatologist at the San Carlos Clinical Hospital in Madrid. Its importance lies in the possibility that they evolve and give rise to a skin cancer. When their appearance changes, they have irregular borders, they become hard, the color is not homogeneous and the diameter exceeds six millimeters, it is necessary to go to the specialist to do a biopsy. If it turns out to be a melanoma, early diagnosis ensures healing in 95% of cases.
Some studies indicate that between 0.2% and 1.5% of the population present at birth a variety known as congenital melanocytic nevus (CMN). Although they can be of all sizes, in certain cases the NMCs are large, and it has been observed that they can reach up to 20 centimeters in diameter in newborns. "These are more likely to become malignant because of their size and because they have been exposed to solar radiation for longer," says Dr. Pedraz. Not only are they located on the skin; There are also inmates. "They are found behind the spine and even in the brain, but they have no impact on health." Yes, they can have the larger ones. "They are very rare, they are usually placed in the trunk and removed with surgery," adds Pedraz.
Source: MuyInteresante
