Mongolian spots are blue - causes, symptoms, diagnosis, treatment
- 15 Aug 17:15
- Disease Of The Skin
Mongolian stain is commonly referred to as the skin of gray-blue or blue-black pigmentation. Such pigmented areas are found on the skin of the baby immediately after birth. In most children, the spots are located in the sacrum or in the buttocks.
Bluecongenital spots are called Mongolian, as these formations on the skin are observed in almost 90% of newborns belonging to the Mongoloid race. Blue spots on the skin of newborns are often found in the Mongols, Japanese, Indonesians, Indians, Eskimos and other nations of the Yellow Race.
For Europeanpoids, the presence of Mongolian spots is not characteristic, such formations are noted only in 1% of newborns of white babies. In most cases, the presence of the Mongolian stain on the skin of the infant of the European race indicates the presence of racial impurities in previous generations.
According to statistics, roughly every 200 of the present-day representatives of Asian peoples are the carrier of a particular gene. This gene belongs to their common ancestor, who lived approximately in the XII century. Scientists gave him the name "gene Genghis Khan", since approximately in the modern world about 16 million people can consider themselves the descendants of this great warrior of the past.
Interestingly, the presence of Mongolian spots does not have any physiological or adaptive value. However, this phenomenon can undoubtedly give food for reflection to researchers studying the mysteries of the evolution of .
The presence of characteristic areas of pigmentation on the skin of infants by different peoples is perceived differently. Most consider the bluish stain to be a sacred sign or sign of God, indicating that the born baby is the representative of his people. But in Brazil or Ecuador, the presence of such a mark in children is somehow taken to hide.
- 1 Causes of the appearance of
- 2 Clinical picture of
- 3 Methods of diagnosis
- 4 Treatment of
- 5 Forecast and prevention of
- 6 Photo
Causes of the appearance of
Human skin has two interconnected layers. A deeper layer of the skin is called a dermis, and the surface is an epidermis.
Pigmentation of the skin depends on the presence in the epidermis of special pigment cells - melanocytes. These cells produce a pigment that determines the color of the skin. On average, a person on the skin area of 1 square millimeter is located up to 2,000 cells of melanocytes, that is, their amount is approximately 10% of the total number of skin cells. However, the color of the skin depends entirely on the functional activity of the cells-melanocytes, not on their number. Violation of the activity of these cells can lead to the development of such diseases: vitiligo, gallonive, and others.
In the representatives of the white race of melanin produced a little, only under the influence of sunlight is activation of melanocytes, resulting in the skin appears tan. In people of the yellow and black races, melanocytes produce the pigment constantly, which causes the characteristic coloration of the skin.
In the process of embryo development, migration of melanocyte cells with ectoderm in the epidermis is carried out. Researchers believe that the mechanism of formation of the Mongolian stain is due to the fact that the process of migration of cells remains incomplete. That is, a part of melanocytes continues to remain in deeper layers of the skin - in the dermis. The pigment is produced by these deeply-spaced cells and causes the formation of gray-blue spots on the skin.
Thus, the cause of the characteristic blue pigment spots is a slight pathology of embryonic development, due to the presence of a special gene.
Mongolian stain belongs to the category of congenital Nevus. In most children, the color of the spots is blue and gray, so it resembles a bruise, which, by the way, may appear even under the nail( podnogtevaya hematoma).Sometimes the formation of dark, blue-black or blue-brown pigment spots is possible. A characteristic symptom of the Mongolian stain is uniform staining throughout the surface of the pigmentation site.
The pigmentation area may have a very different configuration, the spot may be oval or round, but the main form of education is irregular. The size of the spots can vary greatly, it can be quite small formations, the size of a small coin, and large areas of pigmentation with the size of the plate. In some babies, the innate spots completely cover the entire area of the back or buttocks.
In most of the newborns of the Mongolian race, blue spots are located on the icy or lumbar. However, other localization is also excluded, cases of formation of Mongolian spots on the skin of the back, legs, forearm and other parts of the body have been noted. In some children, the spot "migrates", that is, it gradually changes its localization, for example, moving from the buttocks to the waist.
Most often, the Mongolian stain is a single element, however, cases of multiple spots are common.
In the first months of life, the pigment spot on the skin of the baby can acquire a more intense coloration, but over time it is pale and decreases in size. Most children under 5 years of age completely disappear. But sometimes pigmentation lasts until adolescence. In people born with multiple Mongolian spots, especially with their unusual localization, pigmentation areas can survive throughout life.
When it detects pigmentary stains on a child's skin, referral is advised to a dermatologist. The expert will conduct a differential diagnosis, since it is necessary to distinguish the Mongolian stain from other varieties of pigmented nevus.
Formations such as blue nevus, nevus Ota, pigmentary hairy nevus are potentially melanoma-sensitive. Therefore, in the presence of these formations on the skin the child should be married to dermatologists and oncologists.
For the differentiation of the Mongolian stain of nevus of another type carry out special research:
- Dermatoscopy - studying education under multiple reversal;
- Siapope - Spectrophotometric Scan of Education.
If necessary, the diagnosis can be performed by conducting a skin biopsy in the pigmentation area. A biopsy also carries out diagnostics of diseases of a different nature, for example, when detecting warts on the lips, nodular poseus, syringom, cancer, and others. In the histological study of the material found, dendritic cells that contain melanin, in the deep layers of the dermis. Are located cells between the unaltered collagen and elastic fibers( in the normal pigment cells in the dermis should not be).
Provided that the examination and precise diagnosis are established, the Mongolian stain does not require any treatment. It is not required to be registered for the supervision of a dermatologist. Education does not cause any inconvenience to the child and eventually, as a rule, passes.
Forecast and prevention of
Mongolian stain is not a disease, therefore, it does not need to be prevented.
Forecast for a given variety of pigment Nevus is favorable. In the history of observation, there was no recorded case of the rebirth of the Mongolian spot in melanoma. Therefore, no treatment and medical supervision of pigmentary education is required.
In most children, the spot involuntarily disappears in a few years, unlike such an illness as albinism, which is also associated with a violation of the pigmentation process. But even if the area of pigmentation persists on the skin for life, nobody cares for it.