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GIORNALE ITALIANO DI DERMATOLOGIA E VENEREOLOGIA

Rivista di Dermatologia e Malattie Sessualmente Trasmesse


Official Journal of the Italian Society of Dermatology and Sexually Transmitted Diseases
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ORIGINAL ARTICLE  


Giornale Italiano di Dermatologia e Venereologia 2017 August;152(4):333-7

DOI: 10.23736/S0392-0488.16.05279-2

Copyright © 2015 EDIZIONI MINERVA MEDICA

lingua: Inglese

Dermatofibroma looks dermoscopically different on trunk versus extremities

Gabriella BRANCACCIO 1 , Tonia NUZZO 1, Rosa DI MAIO 1, Aimilios LALLAS 2, Alessio GAMBARDELLA 1, Amalia LUPOLI 1, Stefano CACCAVALE 1, Roberto ALFANO 3, Philipp TSCHANDL 4, Giuseppe ARGENZIANO 1

1 Dermatology Unit, Second University of Naples, Naples, Italy; 2 Skin Cancer Unit, Arcispedale Santa Maria Nuova Institute for Research and Care, Reggio Emilia, Italy; 3 Department of Anesthesiology, Surgery and Emergency Care, Second University of Naples, Naples, Italy; 4 Department of Dermatology, Medical University of Vienna, Vienna, Austria


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BACKGROUND: Several dermoscopic patterns have been described in dermatofibroma (DF), but little is known about morphologic features of DF in different anatomic locations. The aim of this study was to evaluate the association between the dermoscopic pattern of DF and the anatomic location.
METHODS: We conducted a retrospective observational study of 169 DF that were evaluated for the presence of dermoscopic structures and patterns. Patients’ age and sex were recorded, while the anatomic location of each lesion was categorized in 2 main groups, namely extremities and trunk. The possible correlation between the dermoscopic pattern and the anatomic site was tested using the χ2 test or the Fisher’s exact test, as appropriate.
RESULTS: DFs resulted mainly located on extremities as compared to trunk (79.2% and 20.7%, respectively). Frequencies of dermoscopic patterns of DF were the following: atypical (26.6%), network and patch (23.7%), total structureless (17.1%), structureless and patch (9.5%), total network (6.5%), network and structureless (3.5%), double network (2.9%), white network and total structureless (2.9%), white network (2.9%), multifocal patches (2.4%), and total patch (1.8%). A significant association between network and patch pattern and extremities (27.6%) was found (P<0.05). Similarly structureless and patch pattern resulted completely absent on trunk and quite frequent on extremities (11.9%; P<0.05). In contrast, total structureless was the most common pattern on the trunk (31.4%) and less represented on extremities (P<0.05). Total network pattern followed the same trend (P<0.05).
CONCLUSIONS: Our study reveals that the dermoscopic pattern of DF is significantly influenced by the anatomic location of the lesion. The “classic” pattern with a white patch surrounded by network dermoscopically characterizes DFs of the extremities, while DFs located on the trunk often exhibit different findings.


KEY WORDS: Benign fibrous histiocytoma - Dermoscopy - Medical topography

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Publication History

Issue published online: June 14, 2017
Article first published online: December 23, 2015
Manuscript accepted: December 22, 2015
Manuscript received: November 21, 2015

Per citare questo articolo

Brancaccio G, Nuzzo T, Di Maio R, Lallas A, Gambardella A, Lupoli A, et al. Dermatofibroma looks dermoscopically different on trunk versus extremities. G Ital Dermatol Venereol 2017;152:333-7. DOI: 10.23736/S0392-0488.16.05279-2

Corresponding author e-mail

gabri.brancaccio@gmail.com