title: Asymptomatic myositis ossificans of the medial pterygoid muscles: a case report.
abstract: Traumatic myositis ossificans, also known as myositis ossificans circumscripta or fibrodysplasia ossificans circumscripta, is a form of dystrophic calcification leading to heterotopic ossification of intramuscular connective tissue. This is usually due to a single severe injury or repeated minor injuries to muscle, although cases without a history of injury have been reported. Heterotopic ossification is rare in the orofacial region, especially in the medial pterygoid muscles. A case of medial pterygoid myositis ossificans with unique computed tomography findings is described.
authors.affiliation: Department of Radiology, Loma Linda University Medical Center, California 92354.
authors.forename: K A
authors.initials: KA
authors.lastname: Tong
authors.forename: E L
authors.initials: EL
authors.lastname: Christiansen
authors.forename: W
authors.initials: W
authors.lastname: Heisler
authors.forename: D B
authors.initials: DB
authors.lastname: Hinshaw
authors.forename: A N
authors.initials: AN
authors.lastname: Hasso
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D009221:Myositis Ossificans / Q000000981:diagnostic imaging / Q000209:etiology; D011626:Pterygoid Muscles / Q000000981:diagnostic imaging / Q000293:injuries; D014057:Tomography, X-Ray Computed