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González-Moles MÁ, Ramos-García P. An Evidence-Based Update on the Potential for Malignancy of Oral Lichen Planus and Related Conditions: A Systematic Review and Meta-Analysis. Cancers (Basel) 2024; 16:608. [PMID: 38339358 PMCID: PMC10854587 DOI: 10.3390/cancers16030608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
A systematic review and a meta-analysis is presented on published articles on the malignant transformation of oral lichen planus (OLP) and related conditions, which, based on current evidence, updates an earlier systematic review published by our research group that included publications until November 2018. In this updated study (Nov-2023) we searched MEDLINE, Embase, Web of Science, and Scopus. We evaluated the methodological quality of studies (QUIPS tool) and carried out meta-analyses. The inclusion criteria were met by 101 studies (38,083 patients), of which, 20 new primary-level studies (11,512 patients) were published in the last 5 years and were added to our updated study. The pooled malignant transformation ratio was 1.43% (95% CI = 1.09-1.80) for OLP; 1.38% (95% CI = 0.16-3.38) for oral lichenoid lesions; 1.20% (95% CI = 0.00-4.25) for lichenoid reactions; and 5.13% (95% CI = 1.90-9.43) for OLP with dysplasia. No significant differences were found between the OLL or LR groups and the OLP subgroup (p = 0.853 and p = 0.328, respectively), and the malignant transformation was significantly higher for the OLP with dysplasia group in comparison with the OLP group (p = 0.001). The factors that had a significant impact with a higher risk of malignant transformation were the presence of epithelial dysplasia, a higher methodological quality, the consumption of tobacco and alcohol, the location of lesions on the tongue, the presence of atrophic and erosive lesions, and infection by the hepatitis C virus. In conclusion, OLP behaves as an oral potentially malignant disorder (OPMD), whose malignancy ratio is probably underestimated as a consequence essentially of the use of inadequate diagnostic criteria and the low methodological quality of the studies on the subject.
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Affiliation(s)
- Miguel Ángel González-Moles
- School of Dentistry, University of Granada, 18071 Granada, Spain;
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - Pablo Ramos-García
- School of Dentistry, University of Granada, 18071 Granada, Spain;
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
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Li JW, Li KY, Chan BWA, McGrath CP, Zheng LW. Rate of Malignant Transformation Differs Based on Diagnostic Criteria for Oral Lichenoid Conditions: A Systematic Review and Meta-Analysis of 24,277 Patients. Cancers (Basel) 2023; 15:cancers15092537. [PMID: 37174004 PMCID: PMC10177058 DOI: 10.3390/cancers15092537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/20/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
OBJECTIVES This systematic review and meta-analysis aims to evaluate the evidence on the malignant potential of oral lichenoid conditions (OLCs) including oral lichen planus (OLP), oral lichenoid lesions (OLL), and lichenoid mucositis dysplasia (LMD). In addition, it aims to compare the rate of malignant transformation (MT) in OLP patients diagnosed according to different diagnostic criteria, and to investigate the possible risk factors for OLP MT into OSCC. MATERIALS AND METHODS A standardized search strategy was applied across four databases (PubMed, Embase, Web of Science, and Scopus). Screening, identification and reporting followed the PRISMA framework. Data on MT were calculated as a pooled proportion (PP), subgroup analyses and possible risk factors for MT were pooled as odds ratios (ORs). RESULTS Among 54 studies with 24,277 patients, the PP for OLCs MT was 1.07% (95% CI [0.82, 1.32]). The estimated MT rate for OLP, OLL and LMD was 0.94%, 1.95% and 6.31%, respectively. The PP OLP MT rate using the 2003 modified WHO criteria group was lower than that using the non-2003 criteria (0.86%; 95% CI [0.51, 1.22] versus 1.01%; 95% CI [0.67, 1.35]). A higher odds ratio of MT was observed for red OLP lesions (OR = 3.52; 95% CI [2.20, 5.64]), smokers (OR = 1.79; 95% CI [1.02, 3.03]), alcohol consumers (OR = 3.27, 95% CI [1.11, 9.64]) and those infected with HCV (OR = 2.55, 95% CI [1.58, 4.13]), compared to those without these risk factors. CONCLUSIONS OLP and OLL carry a low risk of developing OSCC. MT rates differed based on diagnostic criteria. A higher odds ratio of MT was observed among red OLP lesions, smokers, alcohol consumers, and HCV-positive patients. These findings have implications for practice and policies.
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Affiliation(s)
- Jing-Wen Li
- Division of Oral & Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Kar Yan Li
- Clinical Research Centre, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Bik Wan Amy Chan
- Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Colman Patrick McGrath
- Division of Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Li-Wu Zheng
- Division of Oral & Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
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A Survey of Brazilian Patients with Oral Lichen Planus Showing No Evidence of Malignancy. Dermatol Res Pract 2022; 2022:5937540. [PMID: 35340913 PMCID: PMC8942684 DOI: 10.1155/2022/5937540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/26/2021] [Accepted: 02/26/2022] [Indexed: 11/17/2022] Open
Abstract
Objectives There is conflicting evidence as to whether oral lichen planus (OLP) can undergo malignant transformation into oral squamous cell carcinoma (OSCC). This study aimed to address this issue by analyzing a sample of Brazilian patients with either OLP or OSCC. Patients and Methods. This study was conducted in São Paulo, the world's fourth-largest city by population. Two groups of patients were analyzed. The OLP group consisted of 370 patients, while the OSCC group consisted of 154 patients. The OLP patients were followed up for up to 21 years to monitor clinical benefits from the management or changes in the lesion morphology; conversely, patients with OSCC were examined only twice for diagnostic purposes and referred to a specialized center. Data concerning systemic diseases, use of medications, type of oral lesions, and health-risk behaviors were recorded for patients in both groups. Results None of the patients with OLP developed OSCC at the lesion site. Only one female patient with erosive OLP developed OSCC in the normal, lesion-free oral mucosa. None of the OSCC patients had concomitant OLP lesions; however, a higher percentage of OSCC cases (17.5%) showed white plaques (most likely oral leukoplakia) as a precursor lesion. Conclusion The findings strongly suggest that malignant transformation of OLP is virtually nonexistent in the Brazilian population.
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Oral potentially malignant disorders: clinical diagnosis and current screening aids: a narrative review. Eur J Cancer Prev 2021; 29:65-72. [PMID: 30921006 DOI: 10.1097/cej.0000000000000510] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Around 300 000 patients are estimated to have oral cancer worldwide annually, and the incidence is higher in South Asian countries. In 2005, at the Congress of WHO, the term potentially malignant disorder (PMD)/lesion was suggested as a replacement for premalignant oral lesions and conditions. PMDs are those lesions of the oral mucosa that are at an increased risk of malignant transformation compared with the healthy mucosa. PMDs consist of leukoplakia, erythroplakia, oral lichen planus, oral submucous fibrosis, and other miscellaneous lesions. A literature search was performed using PubMed, Scopus, and Web of Science without any language restrictions. There is no standardized method for identifying a site for biopsy and various methods such as toluidine blue stain, methylene blue, Lugol's iodine, and chemiluminescence have been proposed in the literature. Despite easy access to the oral cavity, there has been significant mortality associated with oral cancer as they are often diagnosed late because of the inability of healthcare professionals to identify them at early premalignant states. This article aims to provide healthcare professionals with the knowledge to identify potentially malignant disorders and to aid them in biopsy site identification.
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Ramos-García P, González-Moles MÁ, Warnakulasuriya S. Oral cancer development in lichen planus and related conditions-3.0 evidence level: A systematic review of systematic reviews. Oral Dis 2021; 27:1919-1935. [PMID: 33616234 DOI: 10.1111/odi.13812] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 02/15/2021] [Accepted: 02/18/2021] [Indexed: 12/20/2022]
Abstract
A systematic review of systematic reviews-aka overview of reviews, a novel type of study design providing a tertiary level of evidence-is presented on systematic reviews (SR) and meta-analyses (MTA) evaluating the cancer development in oral lichen planus (OLP), oral lichenoid lesions (OLL), and oral lichenoid reactions (OLR). We searched for SR-MTA published before January 2021. We evaluated the methodological quality of SR-MTA using AMSTAR2 and checked the quality of evidence. Inclusion criteria were met by seven SR-MTA. Oral cancer ratios ranged between 0.44% and 2.28% for OLP, between 1.88% and 3.80% for OLL, and 1.71% for OLR. Significant factors on cancer development reported in SR-MTA were the presence of epithelial dysplasia, the consumption of tobacco and alcohol, the infection by the hepatitis C virus, the presence of atrophic and erosive lesions, and the location on the tongue. Only, one of the SRs assessed the quality of evidence, and most of them were judged to be of critically low methodological quality. In conclusion, based on the reported evidence on cancer incidence in OLP, our results reaffirm classifying OLP as an oral potentially malignant disorder. In relation to OLLs and OLRs, larger studies are necessary to provide further scientific evidence in this regard. Future follow-up studies on OLP and related lesions should be carried out under stricter criteria that improve their quality of evidence and methodological quality.
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Affiliation(s)
- Pablo Ramos-García
- School of Dentistry, University of Granada, Granada, Spain.,Biohealth Research Institute (IBS), Granada, Spain
| | - Miguel Ángel González-Moles
- School of Dentistry, University of Granada, Granada, Spain.,Biohealth Research Institute (IBS), Granada, Spain
| | - Saman Warnakulasuriya
- Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK.,WHO Collaborating Centre for Oral Cancer, London, UK
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Gilligan G, Garola F, Piemonte E, Leonardi N, Panico R, Warnakulasuriya S. Lichenoid proliferative leukoplakia, lichenoid lesions with evolution to proliferative leukoplakia or a continuum of the same precancerous condition? A revised hypothesis. J Oral Pathol Med 2020; 50:129-135. [PMID: 33225541 DOI: 10.1111/jop.13133] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 11/05/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Multiple white plaques of the oral mucosa are usually associated with potentially malignant disorders such as oral lichen planus, oral lichenoid lesions and proliferative verrucous leukoplakia. Previous studies in the current literature describe a potential clinical overlap in these entities. The aim of this study is to review clinicopathological and evolutive features of these Oral Potentially Malignant Disorders highlighting the dynamic changes of diagnoses. DISCUSSION It was previously hypothesized that a subset of patients with oral lichen planus or oral lichenoid diagnosis, could develop multiple white plaques during the natural history of the disease, fulfilling diagnostic criteria for proliferative verrucous leukoplakia. Consequently, these entities could, under certain conditions, obey a continuum of the same precancerous condition in the context of the field cancerization theory, increasing the risk of malignant transformation. Nevertheless, there is limited scientific evidence concerning this issue. CONCLUSION Further studies are needed to understand the biological and evolutive features of the link between these oral potentially malignant disorders. Regardless of its diagnosis, these patients with multifocal white lesions must be carefully monitored to detect early malignant transformation.
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Affiliation(s)
- Gerardo Gilligan
- Oral Medicine Department, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Federico Garola
- Oral Medicine Department, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Eduardo Piemonte
- Oral Medicine Department, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Nicolás Leonardi
- Oral Medicine Department, Dentistry School, Health Sciences Faculty, Universidad Católica de Córdoba, Córdoba, Argentina
| | - René Panico
- Oral Medicine Department, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Saman Warnakulasuriya
- Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, WHO Collaborating Centre for Oral Cancer, London, UK
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González-Moles MÁ, Ruiz-Ávila I, González-Ruiz L, Ayén Á, Gil-Montoya JA, Ramos-García P. Malignant transformation risk of oral lichen planus: A systematic review and comprehensive meta-analysis. Oral Oncol 2019; 96:121-130. [PMID: 31422203 DOI: 10.1016/j.oraloncology.2019.07.012] [Citation(s) in RCA: 130] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 07/10/2019] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To evaluate current evidence on the malignant transformation of oral lichen planus (OLP), oral lichenoid lesions (OLLs), and oral lichenoid reactions (LRs) and to determine the variables with greatest influence on cancer development. MATERIAL AND METHODS We searched PubMed, Embase, Web of Science, and Scopus for studies published before November 2018. We evaluated the quality of studies (QUIPS tool). We carried out meta-analyses to fulfill our objectives. We examined the between-study heterogeneity and small-study effects, and conducted sensitivity studies and subgroup analyses. RESULTS Inclusion criteria were met by 82 studies (26,742 patients. The combined malignant transformation rate was 1.14% for OLP (95% CI = 0.84-1.49), 1.88% for OLLs (95% CI = 0.15-4.95) and 1.71% for LRs (95% CI = 0.00-5.46). Subgroup analysis revealed a higher malignant transformation rate in studies when the presence of epithelial dysplasia was not an exclusion criterion (p = 0.001), when both clinical and histopathological criteria were used for diagnosis (p < 0.001), when the follow-up was at least 12 months (p = 0.048), and when there was lower risk of potential bias (p = 0.002). Malignant transformation risk factors were: tongue localization (RR = 1.82, 95% CI = 1.21-2.74, p = 0.004), presence of atrophic-erosive lesions (RR = 4.09, 95% CI = 2.40-6.98, p < 0.001), tobacco use (RR = 1.98, 95% CI = 1.28-3.05, p = 0.002), alcohol consumption (RR = 2.28, 95% CI = 1.14-4.56, p = 0.02), and hepatitis C virus infection (RR = 4.46, 95% CI = 0.98-20.22, p = 0.053). CONCLUSIONS The malignant transformation rates of OLP, OLLs and LRs are underestimated due essentially to restrictive diagnostic criteria, inadequate follow-up periods, and/or low quality of studies.
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Affiliation(s)
- Miguel Ángel González-Moles
- School of Dentistry, University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria. Granada, Spain.
| | - Isabel Ruiz-Ávila
- Instituto de Investigación Biosanitaria. Granada, Spain; Servicio de Anatomía Patológica, Complejo Hospitalario Universitario de Granada, Granada, Spain.
| | - Lucía González-Ruiz
- Servicio de Dermatología, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain.
| | - Ángela Ayén
- School of Medicine, University of Granada, Granada, Spain.
| | - José Antonio Gil-Montoya
- School of Dentistry, University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria. Granada, Spain.
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Giuliani M, Troiano G, Cordaro M, Corsalini M, Gioco G, Lo Muzio L, Pignatelli P, Lajolo C. Rate of malignant transformation of oral lichen planus: A systematic review. Oral Dis 2018; 25:693-709. [PMID: 29738106 DOI: 10.1111/odi.12885] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/09/2018] [Accepted: 04/26/2018] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The aim of this study was to systematically review the literature to determine: (a) the malignant transformation rate (TR) of oral lichen planus (OLP) and its risk factors; (b) whether or not oral lichenoid lesions (OLL) have a different malignant TR. MATERIALS AND METHODS PubMed, Scopus, and Web of Science were used as search engines: only observational, full-length, English language studies were investigated. PRISMA protocol was used to evaluate and present results. PROSPERO registration code is CRD42016048529. RESULTS Among 7,429 records screened, only 21 were included in this review. Ninety-two of 6,559 patients developed oral squamous cell carcinoma, with an overall TR of 1.40% (1.37% for OLP and 2.43% for OLL), an annual TR of 0.20%. Female gender, red clinical forms, and tongue site seem to slightly increase the transformation risk. CONCLUSIONS This systematic review confirms that both OLP and OLL, the latter with a slightly higher TR, may be considered potentially malignant disorders and suggest that erosive type, female gender and tongue site should be considered as risk factors for OLP transformation. Major efforts should be done to establish strict clinical and histological criteria to diagnose OLP and to perform sounder methodological observational studies.
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Affiliation(s)
- Michele Giuliani
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Giuseppe Troiano
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Massimo Cordaro
- School of Dentistry, Catholic University of the Sacred Heart, Rome, Italy
| | - Massimo Corsalini
- Interdisciplinary Department of Medicine (DIM), University of Bari, Bari, Italy
| | - Gioele Gioco
- School of Dentistry, Catholic University of the Sacred Heart, Rome, Italy
| | - Lorenzo Lo Muzio
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Pamela Pignatelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy
| | - Carlo Lajolo
- School of Dentistry, Catholic University of the Sacred Heart, Rome, Italy
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Sagari S, Sanadhya S, Doddamani M, Rajput R. Molecular markers in oral lichen planus: A systematic review. J Oral Maxillofac Pathol 2016; 20:115-21. [PMID: 27194873 PMCID: PMC4860912 DOI: 10.4103/0973-029x.180964] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Oral lichen planus (OLP) is a chronic inflammatory mucosal disease that is usually detected in 0.5–2.2% of the human population. Among these, only 0.5–2.9% of the lesions progress to carcinoma. However, there are no prognostic markers available presently to recognize the increased risk in malignant transformation of the lesions. Selected markers for cell proliferation, adhesion, apoptosis and lymphocytic infiltration were analyzed by immunohistochemistry in addition to static cytometry for DNA content. The concept linking OLP and oral squamous cell carcinoma states that chronic inflammation results in crucial DNA damage, which further progresses to development of carcinoma. Even though in the past decade, enormous information has been accumulated on malignant potential of OLP, its transformation still remains unclear. Hence, the purpose of this article was to review cellular and molecular markers to understand the pathogenesis of OLP and its progression toward malignancy.
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Affiliation(s)
- Shitalkumar Sagari
- Department of Oral and Maxillofacial Pathology, Yogita Dental College and Hospital, Khed, Maharashtra, India
| | - Sudhanshu Sanadhya
- Department of Public Health Dentistry, Government Dental College and Hospital, Jaipur, Rajasthan, India
| | - Mallikarjun Doddamani
- Department of Prosthodontics, KLE VK Institute of Dental Sciences, Belgaum, Karnataka, India
| | - Rajan Rajput
- Department of Oral Medicine and Radiology, Jodhpur Dental College General Hospital, Jodhpur, Rajasthan, India
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Landini G, Mylonas P, Shah IZ, Hamburger J. The reported rates of transformation of oral lichen planus. JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY MEDICINE AND PATHOLOGY 2014. [DOI: 10.1016/j.ajoms.2013.04.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Mårell L, Tillberg A, Widman L, Bergdahl J, Berglund A. Regression of oral lichenoid lesions after replacement of dental restorations. J Oral Rehabil 2014; 41:381-91. [DOI: 10.1111/joor.12151] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L. Mårell
- Department of Odontology; Faculty of Medicine; Umeå University; Umeå Sweden
| | - A. Tillberg
- Institute of Clinical Dentistry; Faculty of Medicine; University of Tromsø and Public Dental Competence Centre for Northern Norway; Tromsø Norway
| | - L. Widman
- Department of Occupational and Environmental Health; Faculty of Medicine; Umeå University; Umeå Sweden
| | - J. Bergdahl
- Department of Psychology; Umeå University; Umeå Sweden
- Institute of Clinical Dentistry; Faculty of Medicine; University of Tromsø; Tromsø Norway
| | - A. Berglund
- Department of Odontology; Faculty of Medicine; Umeå University; Umeå Sweden
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12
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The malignant transformation of oral lichen planus and oral lichenoid lesions. J Am Dent Assoc 2014; 145:45-56. [DOI: 10.14219/jada.2013.10] [Citation(s) in RCA: 209] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Frequency of genital involvement in women with oral lichen planus in southern iran. Dermatol Res Pract 2012; 2012:365230. [PMID: 22675343 PMCID: PMC3366201 DOI: 10.1155/2012/365230] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Revised: 02/21/2012] [Accepted: 03/06/2012] [Indexed: 01/05/2023] Open
Abstract
Background. Lichen Planus is a chronic mucocutaneous disease of immunological basis and unknown etiology. women with oral lichen planus may have concomitant manifestations in vulvovaginal areas. Objective. To determine the frequency and risk factors of genital involvement in a group of Iranian women affected by oral lichen planus. Methods. Thirty-six women with clinical and histopathological diagnosis of oral lichen planus were evaluated for demographic, historical, and clinical parameters of the oral disease. All the patients were referred for careful vulvovaginal examination, as well as histopathological assessment upon clinical indication. Results. Nineteen patients complained from genital symptoms but the number of women with the final diagnosis of genital lichen planus (n = 2) was too small to show any correlation with the parameters evaluated. Conclusion. In spite of low genital involvement possibly due to inadequate patient population, lack of follow-up visits, and contribution of genetic or ethnic factors, for conservative patient care, women with the oral lichen planus in particular those having some relevant genital symptoms, should preferably be referred for careful vulvovaginal examination. Multicenter cohort studies on women of different geographical regions or ethnicities who have genital lichen planus alone or in combination with other common sites are encouraged.
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Müller S. The Lichenoid Tissue Reactions of the Oral Mucosa: Oral Lichen Planus and Other Lichenoid Lesions. Surg Pathol Clin 2011; 4:1005-1026. [PMID: 26837785 DOI: 10.1016/j.path.2011.07.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Lichenoid changes in the oral mucosa can be encountered in a wide range of lesions and can have varied etiologies. Immune-mediated disorders, including lichen planus, mucous membrane pemphigoid, discoid lupus erythematosus, and graft-versus-host disease, can have clinical and histologic overlaps. Lichenoid reactions to dental materials, such as amalgam, or to many systemic drugs are also well documented. Dysplasia of the oral cavity at times can also express a lichenoid histology, which may mask the potentially cancerous component. Proliferative verrucous leukoplakia, an unusual clinical disease, mimics oral lichen planus clinically and requires careful correlation of the clinical and pathologic features.
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Affiliation(s)
- Susan Müller
- Department of Pathology and Laboratory Medicine, Emory University Hospital, Emory University School of Medicine, 1364 Clifton Road, NE, Atlanta, GA 30322, USA; Department of Otolaryngology-Head and Neck Surgery, Emory University School of Medicine, 1365 Clifton Road, NE, Atlanta, GA 30322, USA
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Farhi D, Dupin N. Pathophysiology, etiologic factors, and clinical management of oral lichen planus, part I: facts and controversies. Clin Dermatol 2010; 28:100-8. [PMID: 20082959 DOI: 10.1016/j.clindermatol.2009.03.004] [Citation(s) in RCA: 197] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lichen planus (LP) is an inflammatory disease of the stratified squamous epithelia of unknown etiology. LP affects most frequently the oral mucosa, but it may also involve other mucosa and the skin. Oral LP (OLP) most frequently affects woman aged between 30 and 60 years. Histopathologic examination typically shows orthokeratotic hyperkeratosis, basal cell degeneration, and a dense well-defined infiltrate of lymphocytes in the superficial dermis. OLP lesions may result from the induction of keratinocytes apoptosis by cytotoxic CD8+ T cells stimulated by a yet unidentified self-antigen on a genetically predisposed patient. The association of OLP with hepatitis C virus (HCV) has been more consistently demonstrated in the Mediterranean area. Although HCV RNA and HCV-specific CD4+ and CD8+ T cells have been retrieved in the mucosal lesions of patients with chronic HCV infection and OLP, the eventual pathophysiology of HCV in OLP lesions remains unclear. Available treatments of OLP are not curative, and many have potentially prominent side effects. The objectives of OLP management should be to prevent and screen for malignant transformation and alleviate symptoms on the long-term. Avoidance of potential precipitating drugs, tobacco, alcohol, and local trauma, as well as strict oral hygiene, is essential. The first-line pharmacologic treatment relies on topical steroids. Systemic steroids should be limited to the short-term cure of severe refractory OLP. Life-long clinical follow-up, at least annually, is fundamental.
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Affiliation(s)
- David Farhi
- Department of Dermatology and Venereology, Hôpital Cochin, APHP, Université Descartes - Paris 5, Pavillon Tarnier, 75006 Paris, France.
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van der Waal I. Potentially malignant disorders of the oral and oropharyngeal mucosa; terminology, classification and present concepts of management. Oral Oncol 2008; 45:317-23. [PMID: 18674954 DOI: 10.1016/j.oraloncology.2008.05.016] [Citation(s) in RCA: 505] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In a recently held WHO workshop it has been recommended to abandon the distinction between potentially malignant lesions and potentially malignant conditions and to use the term potentially malignant disorders instead. Of these disorders, leukoplakia and erythroplakia are the most common ones. These diagnoses are still defined by exclusion of other known white or red lesions. In spite of tremendous progress in the field of molecular biology there is yet no single marker that reliably enables to predict malignant transformation in an individual patient. The general advice is to excise or laser any oral of oropharyngeal leukoplakia/erythroplakia, if feasible, irrespective of the presence or absence of dysplasia. Nevertheless, it is actually unknown whether such removal truly prevents the possible development of a squamous cell carcinoma. At present, oral lichen planus seems to be accepted in the literature as being a potentially malignant disorder, although the risk of malignant transformation is lower than in leukoplakia. There are no means to prevent such event. The efficacy of follow-up of oral lichen planus is questionable. Finally, brief attention has been paid to oral submucous fibrosis, actinic cheilitis, some inherited cancer syndromes and immunodeficiency in relation to cancer predisposition.
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Affiliation(s)
- Isaäc van der Waal
- VU University Medical Center/Academic Centre for Dentistry Amsterdam, Department of Oral and Maxillofacial Surgery/Pathology, P.O. Box 7057, 1007 MB Amsterdam, The Netherlands.
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Ismail SB, Kumar SKS, Zain RB. Oral lichen planus and lichenoid reactions: etiopathogenesis, diagnosis, management and malignant transformation. J Oral Sci 2008; 49:89-106. [PMID: 17634721 DOI: 10.2334/josnusd.49.89] [Citation(s) in RCA: 307] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Lichen planus, a chronic autoimmune, mucocutaneous disease affects the oral mucosa (oral lichen planus or OLP) besides the skin, genital mucosa, scalp and nails. An immune mediated pathogenesis is recognized in lichen planus although the exact etiology is unknown. The disease most commonly affects middle-aged females. Oral lichenoid reactions (OLR) which are considered variants of OLP, may be regarded as a disease by itself or as an exacerbation of an existing OLP, by the presence of medication (lichenoid drug reactions) or dental materials (contact hypersensitivity). OLP usually presents as white striations (Wickham's striae), white papules, white plaque, erythema, erosions or blisters. Diagnosis of OLP is established either by clinical examination only or by clinical examination with histopathologic confirmation. Direct immunofluorescence examination is only used as an adjunct to the above method of diagnosis and to rule out specific autoimmune diseases such as pemphigus and pemphigoid. Histopathologic features of OLP and OLR are similar with suggestions of certain discriminatory features by some authors. Topical corticosteroids are the treatment of choice for OLP although several other medications have been studied including retinoids, tacrolimus, cyclosporine and photodynamic therapy. Certain OLP undergo malignant transformation and the exact incidence and mechanisms are still controversial. In this paper, etiopathogenesis, diagnosis, management and malignant transformation of OLP and OLR have been reviewed.
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Affiliation(s)
- Sumairi B Ismail
- Department of Oral Pathology, Oral Medicine and Periodontology, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
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Roosaar A, Johansson AL, Sandborgh-Englund G, Axéll T, Nyrén O. Cancer and mortality among users and nonusers of snus. Int J Cancer 2008; 123:168-73. [DOI: 10.1002/ijc.23469] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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On the natural course of oral lichen lesions in a Swedish population-based sample. Br Dent J 2006. [DOI: 10.1038/sj.bdj.4813678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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