Types of melanoneopausal convex moles
Intradermal pigmentary mole
Basically, this type of nevi develops during the adolescent period. In the initial stage, it is localized in the deep layers of the dermis, not protruding beyond its boundaries. The size of the birthmark is several millimeters. The most frequent location is the skin in the throat and neck area, under the breast, in the skin folds of the armpits and groin. Over time, this convex birthmark may slightly change in shape and color.
The forecast is favorable. Malignant degeneration (malignancy) occurs in approximately 15% of cases with additional risk factors.
A characteristic feature is a pronounced elevation on the surface of the skin, differing in shape and color. Visually it looks like a brownish or pink, convex birthmark with a grainy surface. When palpation is soft and painless. Usually, apart from cosmetic flaws, there is no particular concern. The place of accommodation is mainly the scalp. Very rarely it can be located on the trunk and extremities.
The forecast is favorable. The papillomatous birthmark has the property of gradually increasing throughout the life of a person, but cases of malignant transformation are very rare.
Nevus Sutton (halonevus)
In appearance it is an oval or round pale convex mole. A characteristic difference is a corolla of pale skin surrounding the base of the nevus. The preferred location is the skin of the extremities or trunk. Sometimes it can localize on the feet, mucous membranes and face. It should be borne in mind that when one birthmark of this type appears, one should look for similar ones, since single manifestations of this kind of formations are atypical.
The forecast is favorable. The neoplasms themselves disappear without treatment after a few months after the onset. Therefore, it is not recommended to delete them. Transformation of halonews into skin cancer occurs in very rare cases. Nevertheless, these birthmarks may indicate the presence of other serious diseases that should be diagnosed in a timely manner.
Types of melaneopasic convex moles
Blue nevus (Jadassona-Tiche or blue) is considered a type of precancerous tumors, but, basically, refers to the type of benign formations. The name of the nevus was due to its cells, which actively produce melanin. Externally is a dark (dark blue, dark violet) or black convex birthmark. Clear statistics of the location of this new growth is not. The size of a mole in diameter does not exceed 1cm. The blue nevus is not characterized by the growth of hair on the surface. With a more thorough examination, the borders of the birthmark and the tension of the skin are noted.
The forecast is favorable. Cases when moles of this species become skin cancer are not often found. Most often this happens after unsuccessful removal or traumatization of education. However, people with blue nevus are recommended to undergo a regular and timely checkup with a dermatologist.
Gigantic pigmentary mole
This type of nevi differs from other species in that it has an innate character, and is noticeable already in the first days of a newborn's life. External signs during examination - a large gray or brown convex birthmark. With the development of the body has a property to increase significantly (from 2 to 7cm). In some cases, it is located on large areas of the skin of the body (cheek, neck, a significant proportion of the trunk). Quite often on the bumpy surface of a convex mole, the intensity of hair growth is noted.
The forecast is favorable. Surgical treatment of this kind of moles is prescribed with the aim of eliminating the cosmetic defect. However, cases of transformation into malignant tumors are not so rare (about 10%). The reason for this phenomenon is the large size of the area of localization of moles, which increases the likelihood of their trauma.