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GIORNALE ITALIANO DI DERMATOLOGIA E VENEREOLOGIA

A Journal on Dermatology and Sexually Transmitted Diseases


Official Journal of the Italian Society of Dermatology and Sexually Transmitted Diseases
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Giornale Italiano di Dermatologia e Venereologia 1999 August;134(4):289-93

Copyright © 1999 EDIZIONI MINERVA MEDICA

language: Italian

New details of congenital melanocytic nevus by 250-fold magnification in the surface videodermoscopy

Tulli A. 1, Laraia P. 1, Capizzi R. 1, Massi G. 2

1 Università Cattolica del Sacro Cuore - Roma, Clinica Dermatologica; 2 Università Cattolica del Sacro Cuore - Roma, Istituto di Istopatologia


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Background. Congenital nevi can move into melanomas more than common nevi. Some congenital nevi have been studied by amplified surface videodermoscopy 250˘, so that new patterns could help to get a better diagnosis in pigmented lesions.
Methods. Twenty-one patients have been selected randomly (age between 14 and 62 years old) with small, medium or large congenital nevi. Each nevus was observed by videodermoscopy from 30˘ to 250˘. The examination has been made in respect of international videodermoscopic criteria.
Results. Two patterns of congenital nevi were recognized: 1) the first group with brown globules organized in big and regular islands; 2) the second group with thin pigment network interrupted by black dots and white and regular areas, different from those observed in melanomas.
It was not possible to find out pseudopods, radial streamings or white areas observed in melanomas.
Conclusions. The new patterns observed could help to get a better diagnosis between nevi and melanomas or any malignancy in benign melanocytic lesions.

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