Lichen Planus

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lichen planus

[‚līk·ən ′plan·əs]
A dermatologic disease of unknown etiology that also occurs in the mouth, on the tongue, or on the lips as smooth lacy networks of white lines or, less commonly, as white patches that may become ulcerative.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Lichen Planus


a skin disease characterized by the eruption of pointed flat nodules with a spirally twisted fluffy hair in the center; it is one of the keratoses. It appears in children aged 2 to 3, reaches a peak between ages 15 and 20, and subsides in adulthood; it occurs more often in girls and young women. The eruptions appear mostly on the extensor surfaces of the upper and lower limbs, the buttocks, and, sometimes, the scalp. Lichen planus is associated with dry skin and slight scaling of the skin, especially on the external surface of the upper and lower limbs. The disease is often a congenital anomaly; it may be a manifestation of hypovitaminosis A. Treatment is protracted and calls for large doses of vitamins A and E and warm baths followed by rubbing in ointments containing vitamin A and agents that dissolve the horny layer of the skin. Sea bathing combined with sunbaths and radon and hydrogen sulfide baths are beneficial.


Popkhristov, P. Kozhnye bolezni v detskom vozraste. Sofia, 1963. (Translated from Bulgarian.)
Spravochnik po kosmetike. Edited by M. A. Rozentul. Moscow, 1964.
Mashkilleison, L. N. Lechenie i profilaktika kozhnykh boleznei. Moscow, 1964.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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References in periodicals archive ?
None of the subjects in the present study had taken any corticosteroids or immunosuppressives during the previous 2 months to control oral lichen planus or other medical conditions.
Lichen planus (LP) is an inflammatory mucocutaneous condition with characteristic violaceous polygonal flat topped papules and plaques.
These data corroborate the findings of a smaller study evaluating hydroxychloroquine for oral lichen planus, published in 1993, according to Dr.
Dermoscopic findings in different clinical variants of lichen planus. Is dermoscopy useful?
Results: Impaired glucose metabolism including impaired GTT and diabetes was observed in 15 (28.8%) patients with lichen planus, so there was not any significant difference in impaired glucose metabolism of patients with lichen planus compared to the general population.
Papillary dermis fibrosis is observed in chronic dermatitis, and melanin incontinence is a diagnostic feature for lichen planus. Exocytosis could be observed in pityriasis rosea, lichen planus, and seborrheic dermatitis.
Differential diagnosis includes actinic cheilitis, allergic contact cheilitis, lichen planus, etc.
A statistical insignificance (P = 0.92) was seen among the PMD groups (lichen planus and OSMF).
On the other hand, oral lichen planus (OLP) is a common inflammatory condition affecting 0.1-2.2% of the population, which has been associated with approximately 1% of OLP patients developing oral squamous cell carcinoma based on a recent meta-analysis [22].
Kano, "Lichen Planus and lichenoid dermatoses," in Dermatology, J.
Oral lichen planus (OLP) is a chronic inflammatory T cell-mediated disease, clinically manifested as white, lacy plaques, located mainly on the buccal mucosa and tongue [1, 2].
Oral lichen planus (OLP) is one of the common chronic inflammatory, noninfectious, and precancerous oral mucosal diseases that affect the stratified squamous epithelium in adults [1, 2].