The intraoral video camera: a diagnostic tool in the exam of patient with ncreased oral cancer risk / A vídeo-câmera intraoral como instrumento auxiliar no exame dos pacientes com risco aumentado para câncer bucal

ABSTRACT

OBJECTIVE: To compare the findings of the clinical examination of the oral cavity with and without theaid of an intraoral video camera (“videoroscopy”) with the purpose of diagnosing epithelial precursorlesions (leukoplakia, erythroplakia and actinic cheilitis) and precancerous conditions (lichen planus).MATERIALS AND METHODS: Both forms of examination were performed in 100 patients withincreased risk of oral cancer. All patients were examined without the aid of any enlargement apparatusbefore the intraoral video camera was used. After each of the exams, the presence or absence of epithelialprecursor lesions or lichen planus was recorded. In the event a lesion was found, a digital picture was takena toluidine blue staining test was performed and then a biopsy was done. RESULTS: Of the patients withepithelial precursor lesions or lichen planus, 80% of the lesions had been observed in both of the examinationswhile 7% only had been diagnosed the after the videoroscopy. The results of the histopathological analysisand the toluidine blue staining tests are also presented. CONCLUSIONS: In this study videoroscopy issuggested for use on a regular basis in patients with an increased risk of oral cancer in an attempt to diagnoseearly lesions, select of the best area to be biopsied and during the following up of these lesions.

RESUMO

OBJETIVO: Comparar os achados do exame clínico da boca com e sem auxílio da vídeo-câmeraintrabucal (videoroscopia) com o propósito de diagnosticar lesões epiteliais precursoras(leucoplasia, eritroplasia, eritroleucoplasia e queilite actínica) e condições pré-cancerosas (líquen plano). MATERIAL E MÉTODOS: Os exames foram realizados em 100 pacientes com riscoaumentado para câncer oral. Todos os pacientes foram examinados sem o auxílio de qualqueraparelho de aumento antes que a vídeo-câmera intrabucal fosse usada. Após cada exame, a presençaou ausência de lesões epiteliais precursoras ou líquen plano foram anotadas. Nos casos em quelesões foram diagnosticadas, fotografaram-se as lesões, bem como o teste do azul de toluidina ea biópsia. RESULTADOS: Dos pacientes com lesão epitelial precursora ou líquen plano, 80%das lesões foram observadas em ambos os exames, enquanto 7% foram somente diagnosticadasapós a videoroscopia. Os resultados histopatológicos e dos testes com azul de toluidina foramtambém discutidos. CONCLUSÕES: Sugere-se a utilização regular da videoroscopia nos pacientescom risco aumentado para o câncer de boca, para auxiliar o diagnóstico de lesões precoces, naseleção da melhor área para a biópsia e acompanhamento dessas lesões.