Nevus pigmentary, dysplastic, blue, boundary, removal of nevus

Pigmentary nevus - a good-quality congestion of pigmentary cells on a skin. Pigmentary nevus it is seldom possible to meet at babies; they start to be shown in the childhood, and especially much they appear in youthes, and with the years number of pigmentary nevuses one step at a time decreases. The type of pigmentary nevuses can be various - they can be flat or acting above a surface of a leather, the smooth or covered hair. It is necessarily necessary for adult people to pay attention to variation of their form, color or appearance as it can be one of initial symptoms developing malignant melanoma.

Dysplastic nevuses is pigment spots of the complex form and with not sharp borders, slightly rise above a level of a skin, painting varies them from red-brown up to dark-brown on a pink background.

Dysplastic nevuses for the first time have drawn to itself attention the unusual type and the raised frequency in some families (are transferred by right of succession). As a rule, dysplastic nevuses is larger than ordinary birthmarks, reaching 5–12 mm in diameter.

Boundary pigmentary nevus. Develops in the field of dermo-epidermal joints and it is characterized raised melanocyte by activity. Clinically it looks like flat is dark-brown or black papule in diameter up to 1 sm, with a smooth dry surface is more often. The important differential-diagnostic sign boundary pigmentary nevus is the total absence on it of hair. Boundary nevus can sometimes look a spot roundish or wrong outlines with equal wavy edges. Favourite localization at boundary nevus is not present. It can settle down on a leather of the person, a neck, a trunk. According to the literature, pigmentary nevuses on a skin of a palm, soles, genitals almost always are boundary. Boundary nevus is congenital is more often, however can appear in the first years of a life or even after puberty.

Blue (dark blue) nevus represents sharply limited from a surrounding skin papule is dark-dark blue or bluish color, roundish outlines, densely-elastic consistence with a smooth hairless surface. It is characterized by massive congestions of melanin in deep layers of derma, that causes its blue color. The size of papule no more than 0,5 sm though in the literature individual supervision huge blue nevus are described, reaching several centimeters in diameter. Settles down blue nevus more often on the person, finitenesses, buttocks. Localization in an oral cavity is possible. Blue nevus meets at representatives of Asian people is more often. Congenital it never happens and appears mainly after puberty. Progress of melanoma on seat blue nevus is observed seldom, but such cases are described, as has induced it to carry to danger of melanoma.

Huge pigmentary nevus - always congenital. It increases in sizes in process of growth of the child, reaching the big size (from a palm and it is more) and borrows sometimes the most part of a trunk, a neck and other areas. Usually on a significant extent a surface of nevus is torous, warty, with deep cracks on a skin. Often there are sites trichauxis (hair nevus). Color variate from grayish up to black, often non-uniform on various sites of nevus. Malignization of huge pigmentary nevus according to various authors occurs in 1,8 % up to 10 % of cases.

Papillomatous nevus is characterized rough, torous by a surface. It is often localized on hair parts of a head, but happens and on any other site of an integument. The sizes more often greater, up to several centimeters, outlines are wrong, color variates from color of a normal skin up to brownish, less often - is dark-brown or even black. Similar fibroepithelial papilloma quite often happens it is penetrated by hair.

Removal of nevuses

Any pigmentary new growths of a skin require attention and vigilance.

Their treatment consists in radical (within the limits of not changed leather) removal by a method surgical ablation (stages are presented on illustrations in the bottom of page). Use modern noninvasive sutural and rules of aesthetic surgery allows to achieve materials undistinguished postoperative cicatrical tissue.