Nevus Linear

Linear nevus: features, causes and treatment methods

A linear nevus, also known as naevus linearis, is a type of mole or pigmented growth that can appear on human skin. This type of nevus is characterized by a linear or band-like distribution of pigmentation on the skin, which distinguishes it from more common, dotted or patchy moles.

Linear nevi can be of different sizes and shapes. They can be small and lines extending only a few centimeters, or they can be larger, covering a significant area of ​​​​the skin. The distribution of pigmentation can be horizontal, vertical or even diagonal.

The reasons for the appearance of linear nevi are not fully understood. It is currently believed that their appearance is associated with genetic factors and heredity. This may be the result of mutations in genes that control skin development and pigmentation. There is also an assumption about the possible influence of external factors, such as ultraviolet radiation, on the formation of linear nevi.

Typically, linear nevi appear in childhood or adolescence and can change throughout life. They can be flat or slightly raised above the surface of the skin and have a different shade of pigmentation, from light brown to dark brown.

In most cases, linear nevi are a cosmetic defect and do not cause any physiological problems. However, in rare cases, they may be associated with other syndromes or medical conditions, such as linear nevi, epidermal nevi, or other pigmented skin changes. In such cases, it is recommended to consult a doctor for a more detailed examination and consultation.

Treatment for linear nevi is usually not required unless they cause discomfort or cosmetic inconvenience. However, if the patient wishes to have the nevus removed for aesthetic or psychological reasons, there are various removal methods available, including surgical removal, laser therapy, or cryodestruction (freezing the nevus using liquid nitrogen). The choice of method depends on the size, location and other characteristics of the nevus, as well as patient preference.

In conclusion, linear nevus is a linear pigmented formation on the skin that can occur due to genetic factors and heredity. Although linear nevi usually do not pose a health threat, in rare cases they can be associated with other medical conditions. If the nevus is causing discomfort or the patient wishes to have it removed for aesthetic reasons, there are various treatment options available, including surgical removal, laser therapy, and cryosurgery.

It is important to remember that any change in the appearance of the skin, including linear nevi, requires attention and consultation with a qualified physician. Only a specialist can give an accurate diagnosis and recommend the most appropriate treatment method. Regular skin examination and self-examination will help you detect any changes early and seek medical help promptly.

Sources:

1. Aleksandrov A.V., Molochkov V.A., Karagodin D.A. Dermatology. National leadership. GEOTAR-Media, 2019.
2. DermNet New Zealand Trust. Linear Naevus. URL: https://dermnetnz.org/topics/linear-naevus/ ↗ (accessed August 2023).