Evaluation measure of 3d volumetry of masseter hypertrophy: association with modalities of imaging

Abstract

Volumetry of masseter hypertrophy 375 RGO, Rev Gaúch Odontol. 2018 Out-Dez;66(4): 375-383 CLINICAL | CLÍNICO | CLINICAL http://dx.Como citar estar artigo / How to cite this article Pinto ASP, Galvão NS, Mendes JP, Pinto PHV, Lopes SLPC, Costa ALF. Evaluation measure of 3d volumetry of masseter hypertrophy: association with modalities of imaging. RGO, Rev Gaúch Odontol. 2018;66(4):375-383. http://dx. ABSTRACTMasseteric hypertrophy is a benign condition, asymptomatic and rare, characterized by the excessive development of the masseter muscle, which usually results in aesthetic complaints. The imaging exams for differential diagnosis of pathologies in the parotidmasseteric region is always recommended. This work aims the imaging characterization of masseteric hypertrophy through the report of two clinical cases combining different imaging modalities: panoramic radiography, magnetic resonance imaging, computed tomography, ultrasonography and 3D volumetry. Two male subjects with no family history of masseteric hypertrophy were referred to a diagnostic center in dentomaxillofacial radiology due to an increase in bilateral facial volume in the masseteric region. Images of the panoramic radiography showed an increase of the bilateral mandibular angle in both cases. Using computerized tomography, bilateral masseter muscle hypertrophy was demonstrated in the patients, and magnetic resonance scan and ultrasound examination were performed for better visualization and muscle measurement. 3D volumetry assessment of musculature showed as additional tool to evaluate the status of the masseter muscles in patients with Masseteric hypertrophy. Therefore, the association of imaging examinations allowed to perform the imaging characterization of masseteric hypertrophy with presence of bone exostosis.Indexing terms: Diagnostic imaging. Hypertrophy. Masseter muscle. Radiology. RESUMOA hipertrofia massetérica é uma condição benigna, assintomática e rara, caracterizada pelo desenvolvimento excessivo do músculo masseter, que geralmente resulta em queixas estéticas. São sempre recomendados os exames de imagem para diagnóstico diferencial