{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T16:19:45Z","timestamp":1791908385545,"version":"4.3.4"},"reference-count":31,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2023,5,31]],"date-time":"2023-05-31T00:00:00Z","timestamp":1685491200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cancers"],"abstract":"<jats:p>This study aims to retrospectively assess the potential risk of malignant transformation in patients with diagnosed oral lichen planus (OLP) between 2015 and 2022, and to evaluate the influence of different risk factors. The department\u2019s database and medical records from 2015 to 2022 were searched for patients with a confirmed diagnosis of OLP based on both clinical and histological parameters. A total of 100 patients (59 females and 41 males) were found with a mean age of 64.03 years. In the considered period, the percentage of diagnosed OLP patients was 1.6%, while the percentage of diagnosed OLP patients with transformation to oral squamous cell carcinoma (OSCC) was 0.18%. A statistically significant difference was found with age (p = 0.038), tobacco status (p = 0.022), and radiotherapy (p = 0.041). The analysis revealed the presence of significant risk in ex-smokers (&gt;20 pack-years), with an odds ratio (OR) of 10.0000 (95% confidence interval (95% CI) 1.5793\u201363.3186); in alcohol-drinker patients, with an OR of 4.0519 (95% CI 1.0182\u201316.1253); in ex-smoker and alcohol-drinker patients, with OR of 17.6250 (95% CI 2.2464\u2013138.2808); and in patients who had undergone radiotherapy, with OR of 6.3000 (95% CI 1.2661\u201331.3484). The malignant transformation of oral lichen planus was slightly higher than thought, and the results revealed a possible association with age, tobacco and alcohol status, and history of radiotherapy. An elevated risk of malignant transformation was observed in heavy ex-smoker patients, alcohol-drinker patients, and alcohol-drinker patients with a history of smoking (ex-smokers). Persuading the patient to quit tobacco and alcohol consumption and periodic follow-ups are recommended in general, but particularly in the presence of these risk factors.<\/jats:p>","DOI":"10.3390\/cancers15113004","type":"journal-article","created":{"date-parts":[[2023,6,1]],"date-time":"2023-06-01T02:12:45Z","timestamp":1685585565000},"page":"3004","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Risk of Oral Squamous Cell Carcinoma in One Hundred Patients with Oral Lichen Planus: A Follow-Up Study of Umberto I University Hospital of Rome"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9963-8052","authenticated-orcid":false,"given":"Gianluca","family":"Tenore","sequence":"first","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7857-4416","authenticated-orcid":false,"given":"Ahmed","family":"Mohsen","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5912-4812","authenticated-orcid":false,"given":"Federica","family":"Rocchetti","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giulia","family":"Rossi","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6647-504X","authenticated-orcid":false,"given":"Andrea","family":"Cassoni","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea","family":"Battisti","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6235-9754","authenticated-orcid":false,"given":"Marco","family":"Della Monaca","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4696-0560","authenticated-orcid":false,"given":"Cira Rosaria Tiziana","family":"Di Gioia","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5119-8358","authenticated-orcid":false,"given":"Francesca","family":"De Felice","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea","family":"Botticelli","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Valentino","family":"Valentini","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlo","family":"Della Rocca","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, 04100 Latina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marco","family":"De Vincentiis","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Sense Organs, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2679-7607","authenticated-orcid":false,"given":"Antonella","family":"Polimeni","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2439-2187","authenticated-orcid":false,"given":"Umberto","family":"Romeo","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Board, Umberto I University Hospital, Sapienza University of Rome, 00161 Rome, Italy"},{"name":"Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, 00161 Rome, 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