WordNet

any of several eruptive skin diseases characterized by hard thick lesions grouped together and resembling lichens growing on rocks
any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc.

PrepTutorEJDIC

地衣(ちい);地衣類(菌類と藻類との共生体)

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1. 苔癬型薬疹（薬剤誘発性扁平苔癬) lichenoid drug eruption drug induced lichen planus
2. 色素性紫斑（毛細血管炎） pigmented purpuric dermatoses capillaritis
3. 扁平苔癬 lichen planus
4. 口腔扁平苔癬：病因、臨床的特徴、および診断 oral lichen planus pathogenesis clinical features and diagnosis
5. 腫瘍随伴性天疱瘡 paraneoplastic pemphigus

English Journal

Gene expression based evidence of innate immune response activation in the epithelium with oral lichen planus.

Adami GR1, Yeung AC2, Stucki G3, Kolokythas A3, Sroussi HY2, Cabay RJ4, Kuzin I5, Schwartz JL2.Author information 1Department of Oral Medicine and Oral Diagnostics, Center for Molecular Biology of Oral Diseases, University of Illinois at Chicago, 801 South Paulina Street, Chicago, IL 60612, USA. Electronic address: gadami@uic.edu.2Department of Oral Medicine and Oral Diagnostics, Center for Molecular Biology of Oral Diseases, University of Illinois at Chicago, 801 South Paulina Street, Chicago, IL 60612, USA.3Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Illinois at Chicago, 801 South Paulina Street, Chicago, IL 60612, USA.4Department of Pathology, College of Medicine, University of Illinois at Chicago, 840 South Wood Street, Chicago, IL 60612, USA.5Division of Allergy/Immunology and Rheumatology, School of Medicine and Dentistry, University of Rochester, 601 Elmwood Avenue, Rochester, NY 14642, USA.AbstractOBJECTIVE: Oral lichen planus (OLP) is a disease of the oral mucosa of unknown cause producing lesions with an intense band-like inflammatory infiltrate of T cells to the subepithelium and keratinocyte cell death. We performed gene expression analysis of the oral epithelium of lesions in subjects with OLP and its sister disease, oral lichenoid reaction (OLR), in order to better understand the role of the keratinocytes in these diseases.
Archives of oral biology.Arch Oral Biol.2014 Mar;59(3):354-61. doi: 10.1016/j.archoralbio.2013.12.010. Epub 2014 Jan 4.
OBJECTIVE: Oral lichen planus (OLP) is a disease of the oral mucosa of unknown cause producing lesions with an intense band-like inflammatory infiltrate of T cells to the subepithelium and keratinocyte cell death. We performed gene expression analysis of the oral epithelium of lesions in subjects wi
PMID 24581860

Oral lichenoid tissue reactions: diagnosis and classification.

Khudhur AS1, Di Zenzo G, Carrozzo M.Author information 1Oral Medicine Department, Centre for Oral Health Research, Newcastle University, Framlington Place, NE2 4BW, Newcastle upon Tyne, UK.AbstractThe concept of lichenoid tissue reaction/interface dermatitis was introduced in dermatology to define a number of diverse inflammatory skin diseases linked together by the presence of common histopathological features. Similarly to the skin, the oral mucosa is affected by a variety of oral lichenoid lesions. Oral LTRs (OLTRs) include: oral lichen planus; oral lichenoid contact lesion; oral lichenoid drug reaction; oral lichenoid lesions of graft-versus-host disease; oral discoid lupus erythematosus; oral lesions of systemic lupus erythematosus; erythema multiforme; paraneoplastic pemphigus/paraneoplastic autoimmune multiorgan syndrome; chronic ulcerative stomatitis and lichen planus pemphigoid. Traditionally, diagnosis of OLTRs relies on clinical and histological correlation but in several instances this approach fails to provide a reliable diagnosis. Inclusion of molecular techniques may refine our ability to differentiate OLTRs.
Expert review of molecular diagnostics.Expert Rev Mol Diagn.2014 Mar;14(2):169-84. doi: 10.1586/14737159.2014.888953. Epub 2014 Feb 13.
The concept of lichenoid tissue reaction/interface dermatitis was introduced in dermatology to define a number of diverse inflammatory skin diseases linked together by the presence of common histopathological features. Similarly to the skin, the oral mucosa is affected by a variety of oral lichenoid
PMID 24524807

Lichenoid drug eruption with hyperpigmentation caused by imatinib mesylate.

Kagimoto Y1, Mizuashi M, Kikuchi K, Aiba S.
International journal of dermatology.Int J Dermatol.2014 Mar;53(3):e161-2. doi: 10.1111/ijd.12174. Epub 2013 Jun 20.
PMID 23786260