Epidemiological profile of malignant oral cancers in a population of northern Portugal

Objetive: To describe some epidemiological characteristics of malignant oral cancers in a population of the Oncology Portuguese Institute of Porto (IPO-PORTO). Methods: After consulting databases of the IPO-PORTO database, we selected all patients diagnosed with oral cancer (C00 to C06) between 1 January 2004 and 31 December 2009, with histological confirmation. Data were analyzed according district of residence, gender, age, topographic location of the tumor, histological type, degree of differentiation, and stage (TNM). Results: During this retrospective descriptive study, 1041cases were reported in both genders. Men were more affected than women in a 3:1 proportion. The number of diagnosed oral carcinoma cases increased in the 5th decade of age (19.69% ± 2.42%) and progressively decrease after the 7th (18.35% ± 2.35%). The most affected region was the tongue (C01 + C02) (43.51% ± 3.01%), followed by the floor of the mouth (C04) (17.48% ± 2.31%). The most prevalent histological entity was squamous cell carcinoma (93.37% ± 10.90%) in grade I (44.20% ± 5.86%). Regarding TNM stages, the most frequent was stage IV (42.00% ± 3.89%). Conclusion: The epidemiological profile of oral malignant neoplasms found in our study is in accordance with the existing literature. More epidemiological studies, as well as awareness and prevention programs, should be conducted in this area in Portugal. © 2016 Sociedade Portuguesa de Estomatologia e Medicina Dentária. Published by Elsevier España, S.L.U. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Perfil epidemiológico das neoplasias orais malignas numa população da região norte de Portugal Palavras-chave: Neoplasmas da boca Carcinoma de células escamosas r e s u m o Objetivo: Descrever algumas características epidemiológicas das neoplasias orais malignas numa população do Instituto Português de Oncologia do Porto (IPO-Porto). ∗ Corresponding author. E-mail address: [email protected] (C. Tavares). http://dx.doi.org/10.1016/j.rpemd.2016.10.145 1646-2890/© 2016 Sociedade Portuguesa de Estomatologia e Medicina Dentária. Published by Elsevier España, S.L.U. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Document downloaded from http://www.elsevier.es, day 29/07/2017. This copy is for personal use. Any transmission of this document by any media or format is strictly prohibited.