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In February, the baby girl became an "orc" because of this mole.
What disease is animal skin nevus?

Animal skin nevus is a kind of melanocyte nevus, only a few millimeters in size. When the diameter reaches more than 20cm, it can be called giant melanocyte nevus. This congenital giant nevus will develop from the superficial layer of the skin to the deep layer with age, reaching the deep fascia at the deepest point, and the area will also increase, covering most of the trunk or extending to the whole body epidermis.

As the child grows up, the mole shows signs of hyperplasia and hypertrophy. The surface of the lesion can form itchy orange peel, papule, cauliflower, wart or tumor, and rough black hair will grow on the surface. Therefore, children with this disease are also called "orcs".

Tip: Being covered with hair is a sign that moles are developing. Generally, the place with long hair has higher body temperature than the place without hair. This is because the blood flow under the mole is faster.

What factors are related to the incidence of cutaneous nevus?

Animal skin nevus is a rare atavistic phenomenon, and the cause is not clear at present, which may be related to heredity, environment and gene mutation. Environmental factors include pollution and radiation, while genetic factors are more complicated and almost irregular. According to experts, even identical twins may have one healthy child and the other sick. Considering the factors of parents, some parents are completely healthy and some children are sick, so the cause cannot be related to whether parents have birthmarks or moles.

The sooner you treat skin nevus, the better the effect.

The appearance of animal skin nevus will not only affect the appearance, but also make children feel inferior and have serious psychological problems. With the rapid growth of moles, the organs and muscles of the body can't get enough nutrition, which makes the child's body sick. In addition, the canceration rate of the disease is about 10%, especially in the adolescent development period. Therefore, once the nevus is diagnosed, treatment measures should be taken as soon as possible.

Because animal skin nevus invades deep muscle layer in a large area, laser treatment or other non-invasive treatment methods will not produce good results, and it is easy to make nevus cancerous (more likely to become cancerous than other nevus).

At present, surgical resection plus skin grafting is the best treatment. In order to rule out the possibility of malignant transformation, the entire epidermis of giant nevus is removed first, and then skin grafting is performed. However, if the area of the mole is too large and the donor area is limited, the skin of important parts such as face and neck can be removed and transplanted by skin expander technology several times after the child is older.

Be wary of moles in these parts.

Almost everyone has moles on the skin surface, but these moles generally do not cause cancer. If inappropriate treatment measures are always taken, it will become malignant. Of course, there are also a few moles that may become malignant, so parents should be alert to this. The moles that are easy to become cancerous are:

1. Any mole that grows on the neck, mucous membrane, palm, toes, heels, genitals, etc. It is easy to be rubbed and * * *, so it is more likely to be malignant. Clinical data show that the malignant rate of nevus in mucosa and genitalia is high.