title: Masseter muscle hypertrophy: case report.
abstract: Masseter muscle hypertrophy is characterized by unilateral or bilateral enlargement of the masseter muscles affecting both males and females after puberty. Its etiology remains unknown. Limitations on mouth opening and also tension in the region of the hypertrophied muscle are symptoms reported. This paper reports a case of masseter muscle hypertrophy diagnosed using imaging modalities such as conventional radiography, computed tomography and magnetic resonance imaging scans. The familiarity with this condition is important to settle the differential diagnosis with other pathologies such as parotid gland tumors and dental infection.
authors.affiliation: Postgraduate Program in Orthodontics, Department of Oral and Maxillofacial Radiology, School of Dentistry, Methodist University of São Paulo, Avenida Lacerda Franco 1180, 01536-000 São Paulo, SP, Brazil. sannomiya@hotmail.com
authors.forename: Eduardo Kazuo
authors.initials: EK
authors.lastname: Sannomya
authors.forename: Marcelo
authors.initials: M
authors.lastname: Gonçalves
authors.forename: Marcelo Paraíso
authors.initials: MP
authors.lastname: Cavalcanti
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D006984:Hypertrophy; D008279:Magnetic Resonance Imaging; D008297:Male; D008406:Masseter Muscle / Q000000981:diagnostic imaging / Q000473:pathology*; D011626:Pterygoid Muscles / Q000473:pathology; D014057:Tomography, X-Ray Computed