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Related to nevus spilus: Speckled Lentiginous Nevus


(US), nevus
any congenital growth or pigmented blemish on the skin; birthmark or mole
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



(mole, birthmark), a congenital malformation of the skin in which some areas differ in color from the rest of the skin and/or have a peculiar warty appearance. Nevi are not confined to any particular area. They can be present at birth or develop during the first few years of life or even later.

Vascular nevi, or hemangiomas, are characterized by varying sizes, uneven edges, and a pink or bluish red color. They become pale when pressed and may be flat, superficial (capillary nevi), or nodular. They are embedded in the thickest part of the skin and have an uneven cavernous surface (cavernous nevi). Verrucoid nevi occur as singular or multiple patches of different shapes, are muddy gray or brown in color, and have an uneven keratotic surface. Pigmented nevi are light brown to almost black in color; they can be the size of a pinhead, or they can cover large areas of the skin. The surfaces of pigmented nevi may be uneven and covered with hair (Becker’s nevi).

Self-treatment of pigmented spots is dangerous because frequent injury may cause them to degenerate into melanomas, whereupon the nevi enlarge, become firmer, and change color. New pigmented spots may appear in the same area, and the regional lymph nodes may become enlarged.

Electrocoagulation, cryotherapy, surgical dissection, and radiotherapy are used to treat nevi.


Shanin, A. P. “Nevusy.” In Mnogotomnoe rukovodstvo po dermatologii, vol. 3. Moscow, 1964.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


A lesion containing melanocytes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Three patients with Becker's nevi had associated nevus depigmentosus, only one such co-occurrence has been reported previously In addition, one each had congenital melanocytic nevus and nevus spilus, which are unreported incidents.
An unusual case of nevus of Ota combined with nevus spilus. Int J Dermatol.
Agminated blue nevi and nevus spilus can be differentiated in the clinic by using a Wood's lamp or performing a biopsy, which is not indicated unless atypia is present.
Congenital melanocytic nevi and nevus spilus have a tendency to follow the lines of Blaschko: an examination of 200 cases.
Occurrence of melanoma in "dysplastic" nevus spilus: report of case and analysis by flow cytometry.
It is postulated that nevus spilus represents a localized defect in neural crest melanoblasts and occurs in fewer than 0.2% of all newborns and 1.2% of white school children.
The grouping of hyper-pigmented macules in this case made us to consider a differential diagnosis of segmental lentiginosis and speckled lentiginous nevus (nevus spilus).