Study of the Dermoscopic Findings and Their Correlation with Histopathological Findings in Various Lichenoid Dermatoses
- *Corresponding Author:
- Kaur T
Department of Dermatology
Venereology and Leprosy Government Medical College
C-12, Medical College Campus, Near Circular
Road, Amritsar, Punjab, India – 143001
E-mail: [email protected]
Received Date: August 06, 2015 Accepted Date: November 03, 2015 Published Datea: November 11, 2015
Citation: Garg P, Kaur T, Malhotra SK, Singh A (2015) Study of the Dermoscopic Findings and Their Correlation with Histopathological Findings in Various Lichenoid Dermatoses. J Clin Exp Dermatol Res 6:308. doi: 10.4172/2155-9554.10000308
Copyright: © 2015 Garg P, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Background: Lichenoid disorders are often difficult to diagnose clinically. Dermoscopy can act as an alternative technique to skin biopsy for diagnosis of various lichenoid dermatoses. Study aim: To study the correlation of dermoscopic with histopathological findings in various lichenoid dermatoses
Methods: Fifty patients with clinical picture of lichenoid dermatoses were examined first under the dermoscope, followed by skin biopsy from the same site. The findings of both methods were recorded and correlated.
Results: Nonvascular findings were the predominant features on dermoscopy out of which white structures were present in 93.33% of patients of classical lichen planus, 50% of actinic lichen planus, 90% of lichen planus hypertrophicus, 50% of lichen planopilaris and in only the case of lichen simplex chronicus. In classical lichen planus patients, a particular pattern of white structures with linear streaks arranged in a radial manner (starburst pattern) was observed. In lichen planus, it is suggested that the white structures on dermoscopy corresponded histologically to hyperkeratosis. Gray-blue dots or brown punctate areas represented melanophages in dermis. In lichen planus pigmentosus and ashy dermatosis patients, no specific patterns could be observed. In lichen planus hypertrophicus, white structures, corn pearls and comedolike openings appeared to represent hyperkeratosis and hypergranulosis, while pigmentation of variable colors could be due to presence of melanophages in the dermis.
Conclusion: Dermoscopy can be a valuable tool for the dermatological diagnosis and may obviate need for skin biopsy.