Michele Giuliani1, Giuseppe Troiano1, Massimo Cordaro2, Massimo Corsalini3, Gioele Gioco2, Lorenzo Lo Muzio1, Pamela Pignatelli4, Carlo Lajolo2. 1. Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy. 2. School of Dentistry, Catholic University of the Sacred Heart, Rome, Italy. 3. Interdisciplinary Department of Medicine (DIM), University of Bari, Bari, Italy. 4. Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy.
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.
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.
Authors: Shuai Shao; Lam C Tsoi; Mrinal K Sarkar; Xianying Xing; Ke Xue; Ranjitha Uppala; Celine C Berthier; Chang Zeng; Matthew Patrick; Allison C Billi; Joseph Fullmer; Maria A Beamer; Bethany Perez-White; Spiro Getsios; Andrew Schuler; John J Voorhees; Sung Choi; Paul Harms; J Michelle Kahlenberg; Johann E Gudjonsson Journal: Sci Transl Med Date: 2019-09-25 Impact factor: 17.956