Table of Contents
ISRN Dermatology
Volume 2013 (2013), Article ID 546813, 7 pages
http://dx.doi.org/10.1155/2013/546813
Clinical Study

Dermoscopic Features of Facial Pigmented Skin Lesions

1Department of Dermatology, Venereology and Cosmetology, Donetsk Medical National University, Ukraine
2Department of Dermatology, Queen Medical, Villaggio, P.O. Box 1418, Doha, Qatar
3Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Ain Shams University, P.O. Box 11381, Cairo, Egypt
4Department of Pathology, Donetsk Medical National University, Ukraine

Received 11 December 2012; Accepted 26 December 2012

Academic Editors: A. R. Ercocen, C.-C. Yang, and A. Zalewska

Copyright © 2013 Yana Goncharova et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Four types of facial pigmented skin lesions (FPSLs) constitute diagnostic challenge to dermatologists; early seborrheic keratosis (SK), pigmented actinic keratosis (AK), lentigo maligna (LM), and solar lentigo (SL). A retrospective analysis of dermoscopic images of histopathologically diagnosed clinically-challenging 64 flat FPSLs was conducted to establish the dermoscopic findings corresponding to each of SK, pigmented AK, LM, and SL. Four main dermoscopic features were evaluated: sharp demarcation, pigment pattern, follicular/epidermal pattern, and vascular pattern. In SK, the most specific dermoscopic features are follicular/epidermal pattern (cerebriform pattern; 100% of lesions, milia-like cysts; 50%, and comedo-like openings; 37.50%), and sharp demarcation (54.17%). AK and LM showed a composite characteristic pattern named “strawberry pattern” in 41.18% and 25% of lesions respectively, characterized by a background erythema and red pseudo-network, associated with prominent follicular openings surrounded by a white halo. However, in LM “strawberry pattern” is widely covered by psewdonetwork (87.5%), homogenous structureless pigmentation (75%) and other vascular patterns. In SL, structureless homogenous pigmentation was recognized in all lesions (100%). From the above mentioned data, we developed an algorithm to guide in dermoscopic features of FPSLs.