Nevus

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Related to compound nevus: dermatofibroma, atypical nevus, Dysplastic nevus

naevus

(US), nevus
any congenital growth or pigmented blemish on the skin; birthmark or mole

Nevus

 

(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.

REFERENCE

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

I. IA. SHAKHTMEISTER

nevus

[′nē·vəs]
(medicine)
A lesion containing melanocytes.
References in periodicals archive ?
Pathologic diagnosis: Benign tumors Diagnosis n (%) Hemangioma 5 (9) Ossifying fibroma 4 (7) Adnexal neoplasm 1 (2) Ameloblastic fibro-odontoma 1 (2) Benign fibrous histiocytoma 1 (2) Blue nevus 1 (2) Compound nevus 1 (2) Epithelioma adenoides cysticum 1 (2) Giant cell granuloma 1 (2) Lymphangioma 1 (2) Neurofibroma 1 (2) Osteochondroma 1 (2) Port wine stain 1 (2) Spitz nevus 1 (2) Xanthogranuloma 1 (2) Total 22 (41) Table 4.
Hastalarimizin klinik ve dermatoskopik tanilari Tani Lezyon sayisi (%) Junctional nevus 183 (%20) Compound nevus 179 (%19,8) Dermal nevus 176 (%19,5) Konjenital 138 (%15,2) melanositik nevus Lentigo 39 (%4,3) Seboreik keratoz 39 (%4,3) Kafeola 39 (%4,3) Displastik nevus 32 (%3,5) Akrokordon 19 (%2,1) Hemanjiyom 13 (%1,4) Akral 11 (%1,2) melanositik nevus Nevus spilus 9 (%1) Blue nevus 8 (%0,8) Dermatofibrom 8 (%0,8) Aktinik keratoz 5 (%0,5) Bazal hucreli 1 (%0,1) karsinom Yuzeyel yayilan 1 (%0,1) melanom Digerleri: Efelid, 4 (%0,4) Lentigo maligna, Bowen hastaligi, Aksesuar meme
It was perhaps a little unfair to include slightly more obscure possible answers such as ; Compound Nevus, Solar Lentigo and Spitzoid Melanoma but a little self-directed research is good for the soul (not to mention your CPD portfolio) so no apologies.