Clinical features of oral lichen planus and oral lichenoid lesions: an oral pathologist’s perspective

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Abstract

The clinicopathological features that precisely characterize oral lichen planus (OLP) and oral lichenoid lesions (OLL) still represent a challenge. The aim of the present study was to analyze, from an oral pathologist perspective, the clinical features from OLP and OLL. Specimens fullfilling the histological criteria for OLP and OLL, and also compatible with OLP (OLP-C), were selected and clinical information was retrieved from the laboratory forms. The final sample was composed by 221 cases, including 119 OLP (53.8%), 65 OLP-C (29.4%) and 37 OLL (16.7%). Females were more affected in the three groups, but the number of males was higher in OLL. Mean age was lower in OLP (52.3 years) in comparison with OLL (57.9 years) (p=0.020). Buccal mucosa and tongue involvement was more frequent in OLP; gingival involvement was uncommon in OLL. The reticular pattern was more frequently found in OLP, while the association of reticular and atrophic/erosive/ulcerated patterns was more common in OLP-C and OLL (p=0.025). In conclusion, gender and mean age of the patients, and anatomical location and clinical manifestation of OLL are different from OLP, and could help to better characterize this group of conditions. Specimens diagnosed as OLP-C showed clinical parameters close to OLP.

Resumo

Os achados clinico-patológicos que caracterizam de forma precisa o líquen plano oral (LPO) e as lesões liquenoides orais (LLO) ainda representam um desafio. O objetivo do presente estudo foi analisar, pela perspectiva do patologista oral, os achados clínicos do LPO e das LLO. Espécimes preenchendo os critérios histológicos para o diagnóstico de LPO e LLO, e também aqueles compatíveis com LPO (LPO-C), foram selecionados e as informações clínicas foram obtidas a partir das requisições laboratoriais. A amostra final foi composta de 221 casos, incluindo 119 LPO (53.8%), 65 LPO-C (29.4%) e 37 LLO (16.7%). As mulheres foram mais acometidas nos três grupos, mas o número de homens acometidos foi maior nas LLO. A média de idade foi menor no LPO (52.3 anos) em comparação com as LLO (57.9 anos) (p=0.020). O envolvimento da mucosa jugal e da língua foi mais frequente no LPO; o envolvimento gingival foi incomum nas LLO. O padrão reticular foi mais frequentemente encontrado no LPO, enquanto a associação dos padrões reticular e atrófico/erosivo/ulcerado foi mais comum no LPO-C e nas LLO (p=0.025). Em conclusão, o gênero e a média de idade dos pacientes, assim como a localização anatômica e a manifestação clínica das LLO são diferentes do LPO, e podem ajudar a melhor caracterizar este grupo de condições. Espécimes diagnosticados como LPO-C mostraram parâmetros clínicos mais próximos ao LPO.

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Most cited references 29

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Diagnosis of oral lichen planus: a position paper of the American Academy of Oral and Maxillofacial Pathology.

Yi-Shing Lisa Cheng, Alan Gould, Zoya Kurago … (2016)

Despite being one of the most common oral mucosal diseases and recognized as early as 1866, oral lichen planus (OLP) is still a disease without a clear etiology or pathogenesis, and with uncertain premalignant potential. More research is urgently needed; however, the research material must be based on an accurate diagnosis. Accurate identification of OLP is often challenging, mandating inclusion of clinico-pathological correlation in the diagnostic process. This article summarizes current knowledge regarding OLP, discusses the challenges of making an accurate diagnosis, and proposes a new set of diagnostic criteria upon which to base future research studies. A checklist is also recommended for clinicians to provide specific information to pathologists when submitting biopsy material. The diagnostic process of OLP requires continued clinical follow-up after initial biopsy, because OLP mimics can manifest, necessitating an additional biopsy for direct immunofluorescence study and/or histopathological evaluation in order to reach a final diagnosis.

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Lack of clinicopathologic correlation in the diagnosis of oral lichen planus based on the presently available diagnostic criteria and suggestions for modifications.

I der Weid, A H D M Dam (2003)

Confirmation of a clinical diagnosis of oral lichen planus (OLP) by means of histopathologic study of a biopsy specimen is generally advised. However, hardly any data exist about the correlation between clinical and histopathologic diagnoses of OLP. The aim of the present investigation was to study the correlation between the clinical and histopathologic assessment of OLP, and to propose diagnostic refinements, if appropriate. Clinical and histopathologic data of two previously published studies were used for this purpose. The number of clinical cases in which all clinicians agreed as well as the number of microscopic slides on which all reviewing pathologists agreed were calculated and compared with each other in order to assess the clinicopathologic correlation. In 42% of the cases in which all clinicians agreed about the clinical diagnosis being diagnostic of OLP, there appeared to be no consensus on the histopathologic diagnosis. Conversely, in 50% of the cases in which all pathologists agreed about the histopathologic diagnosis being diagnostic of OLP there was a lack of consensus on the clinical diagnosis. Based on the findings of the present study, there appears to be a lack of clinicopathologic correlation in the diagnostic assessment of OLP. We therefore propose a set of revised diagnostic criteria of OLP and oral lichenoid lesions, based on the WHO definition of OLP, including clinical as well as histopathologic aspects.

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Oral lichen planus and oral lichenoid lesions: diagnostic and therapeutic considerations.

Isaäc van der Waal, Palle Holmstrup, Mark Schifter … (2007)

Several therapeutic agents have been investigated for the treatment of oral lichen planus (OLP). Among these are corticosteroids, retinoids, cyclosporine, and phototherapy, in addition to other treatment modalities. A systematic review of clinical trials showed that particularly topical corticosteroids are often effective in the management of symptomatic OLP lichen planus. Systemic corticosteroids should be only considered for severe widespread OLP and for lichen planus involving other mucocutaneous sites. Because of the ongoing controversy in the literature about the possible premalignant character of OLP, periodic follow-up is recommended. There is a spectrum of oral lichen planus-like ("lichenoid") lesions that may confuse the differential diagnosis. These include lichenoid contact lesions, lichenoid drug reactions and lichenoid lesions of graft-versus-host disease. In regard to the approach to oral lichenoid contact lesions the value of patch testing remains controversial. Confirmation of the diagnosis of an oral lichenoid drug reaction may be difficult, since empiric withdrawal of the suspected drug and/or its substitution by an alternative agent may be complicated. Oral lichenoid lesions of graft-versus-host disease (OLL-GVHD) are recognized to have an association with malignancy. Local therapy for these lesions rests in topical agents, predominantly corticosteroids.

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Author and article information

Journal

Journal ID (nlm-ta): Braz Dent J

Journal ID (iso-abbrev): Braz Dent J

Journal ID (publisher-id): bdj

Title: Brazilian Dental Journal

Publisher: Fundação Odontológica de Ribeirão Preto

ISSN (Print): 0103-6440

ISSN (Electronic): 1806-4760

Publication date (Electronic, pub): 24 June 2022

Publication date (Electronic, collection): May-Jun 2022

Volume: 33

Issue: 3

Pages: 67-73

Affiliations

[1 ] Post-graduation Program in Dentistry, Dental School, Rio de Janeiro State University, Rio de Janeiro/RJ, Brazil

[2 ] Oral Pathology, Dental School, Rio de Janeiro State University, Rio de Janeiro/RJ, Brazil

[3 ] Dental School, Rio de Janeiro State University, Rio de Janeiro/RJ, Brazil

[4 ] Periodontics, Dental School, Rio de Janeiro State University, Rio de Janeiro/RJ, Brazil

Author notes

Correspondence: Fábio Ramoa Pires - Oral Pathology, Dental School, Rio de Janeiro State University - Av. 28 de Setembro, 157 - Vila Isabel - CEP: 20551-030 - Rio de Janeiro/RJ, Brazil - Telephone/fax number: + 55 21 2868-8284 - E-mail: ramoafop@yahoo.com