LÍQUEN PLANO ORAL: DESAFIOS NO PROCESSO DE DIAGNÓSTICO

• DOI: 10.22533/at.ed.90623270918

• Palavras-chave: Líquen plano. Lesão liquenóide. Diagnóstico diferencial. Mucosa bucal

• Keywords: Lichen planus. Lichenoid lesion. Differential diagnosis. Oral Mucosa

• Abstract: Some oral alterations may present very similar clinical characteristics, however they are different pathologies, consequently their causes or etiologies also differ. Lichen planus and flattened lesions, which affect the buccal mucosa, share very similar clinical features, even. Identical. Microscopically, both diseases are very similar, so the clinical history must be very well investigated in the diagnostic process. Considering that these injuries are not uncommon in the dental surgeon's routine, the objective of this work was to discuss a clinical case within this context, in order to contribute to the clinician in the process of differential diagnosis and conduct. The clinical case is of a female patient, 69 years old, who presented symptomatic white plaque and erosive lesions on the lateral mucous membranes of the tongue and cheeks, mainly. The patient associated the onset of lesions after the use of a new metallic removable prosthesis. The presumptive diagnosis was a lichenoid lesion. After the use of topical corticosteroids and instructions for temporary suspension of the prosthesis, he reported an improvement in the condition, but the lesions remained. She underwent a biopsy of a typical lesion on the lateral region of the tongue and the diagnosis was consistent with lichen planus. In addition to the oral biopsy report, the pathologist highlighted a previous skin exam performed here years ago with the diagnosis of lichen planus. The patient was advised about the disease and referred for medical evaluation. In conclusion, this case study emphasizes the importance of investigating the detailed medical history of patients, as well as the importance of anatomopathological examination of changes in the skin and oral mucosa.