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Case Reports in Dentistry
Volume 2014 (2014), Article ID 707261, 3 pages
Case Report

Anatomical Variation of the Maxillary Sinus in Cone Beam Computed Tomography

1University of North Paraná (UNOPAR), Rua Marselha, 183, Jardim Piza, 86041-140 Londrina, PR, Brazil
2Department of Stomatology, Bauru School of Dentistry, University of São Paulo, Alameda Otávio Pinheiro Brisolla, 9-75, Vila Universitária, 17012-901 Bauru, SP, Brazil
3Department of Morphology, Stomatology and Physiology, Ribeirão Preto School of Dentistry, University of São Paulo, Avenida do Café, s/n, Bairro Monte Alegre, 14040-904 Ribeirão Preto, SP, Brazil

Received 8 October 2013; Accepted 2 January 2014; Published 12 February 2014

Academic Editors: M. Bayram, T. Lombardi, and R. B. Santana

Copyright © 2014 Marcelo Lupion Poleti et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Purpose. The aim of this paper is to report a case in which the cone beam computed tomography (CBCT) was important for the confirmation of the presence of maxillary sinus septum and, therefore, the absence of a suspected pathologic process. Case Description. A 27-year-old male patient was referred for the assessment of a panoramic radiograph displaying a radiolucent area with radiopaque border located in the apical region of the left upper premolars. The provisional diagnosis was either anatomical variation of the maxillary sinuses or a bony lesion. Conclusion. The CBCT was important for an accurate assessment and further confirmation of the presence of maxillary septum, avoiding unnecessary surgical explorations.