Resumo

ARELLANO-VILLALON, Manuel; NAVARRO, Pablo; ARIAS, Alain  e  FUENTES, Ramón. Radiographic Finding of a Foreign Body in the Maxillary Sinus Floor of an Asymptomatic Subject. Int. J. Odontostomat. [online]. 2020, vol.14, n.2, pp.150-153. ISSN 0718-381X.  http://dx.doi.org/10.4067/S0718-381X2020000200150.

The maxillary sinus (SM) is an even cavity present in the maxillary bone, which may present a number of pathological alterations or lesions that can be investigated through imaging analysis. In this sense, opacity, location and / or thickening of the mucous membranes are guides for the diagnosis of pathologies in these structures. These can range from sinusitis, to antrolites, to hypoplasias, pseudocysts or osteomas. In this study the case of a 75-year-old woman is presented. During routine radiographic examination, a foreign body was observed in the right MS in relation to tooth 1.6. A cone-beam computed tomography (CBCT) was requested to evaluate possible rehabilitative dental treatment. Upon examination, two highdensity rounded structures (metal density) adjacent to each other were noted. The structures were in direct contact with the sinus cortex without compromising it. Furthermore in relation to the above structures, scant cortical sinus was observed throughout its course, as well as slight mucous thickening. Considering the patient's background, it was determined to use conservative treatment through periodic controls. Hypothesis of an exogenous mass is proposed, corresponding to the history of endodontic treatment in the area. In view of the differential diagnosis of radiographic findings found, it is essential to implement therapeutic guidelines for patients and have trained clinical staff available to interpret the images.

Palavras-chave : maxillary sinus; cone-beam computed tomography; CBCT; panoramic radiography.

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