RETROSPECTIVE ANALYSIS OF 621 CASES OF ORAL LICHEN PLANUS

Objective To demonstrate clinical and epidemiologic profile of 621 cases of oral lichen planus from Brazilian pathology services. Study Design A retrospective study in which medical records of oral lichen planus from 1975 to 2017 of patients seen in the Clinic of Oral Pathology and in the Oral and Maxillofacial Pathology Service were evaluated. Data of sex, age, ethnicity, and characteristics of the lesion were compiled. This study was approved by the ethics committee (016/03). Results Oral lichen planus represents 1.69% (n = 621) of the lesions. Women (69.7%) and white persons (74.0%) were most common affected. Plaque lesions on buccal mucosa were the most common form. Plaque and ulcer lesions presented a higher frequency of symptomatology (P = .03). Conclusion The clinical profile of patients and histologic presentation of lichen planus is varied. To recognize the heterogeneity of this entity is important for differential diagnosis. Support: FAPEMIG.