Myositis ossificans of the masseter muscle: A rare location. Report of a case and review of literature

Fité-Trepat, Laia; Martos-Fernández, Míriam; Alberola‐Ferranti, Margarita; Romanini-Montecino, Carolina; Sáez‐Barba, Manel; Bescós‐Atín, Coro

doi:10.4317/jced.52888

Cited by 7 publications

(18 citation statements)

References 10 publications

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“…Entgegen der Nomenklatur ("Myositis") lassen sich histologisch keine Endzündungsaktivitäten nachweisen. Und im Gegensatz zum Osteosarkom finden sich keine mitotischen Aberrationen und zytologischen Atypien [4]. Die MOT ist eine benigne Erkrankung, die sich meist selbst limitiert.…”

Section: Case Descriptionunclassified

“…Kein Nachweis einer Mitosis oder Zellproliferationen mit Atypien.DiskussionErst nach 1924 wurde über die Myositis ossificans (MO) berichtet. Bislang sind weniger als 100 Fälle publiziert[4]. Interessant ist hierbei, dass vor allem in letzter Zeit immer wieder über ganz neue Lokalisationen der MO berichtet wird.…”

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“…Wie es genau zu den Umbauvorgängen der Muskulatur in Knochengewebe kommt, ist nicht sicher geklärt. Momentaner Wissensstand ist, dass knochenmorphogenetische Proteine (bone morphogenetic proteins, BMP) lokal in der Traumaregion eine mesenchymale Zelldifferenzierung zu Osteoblasten oder Chondroblasten induzieren[4].Man unterscheidet bei der MO die traumatische (Myositis ossificans traumatica, MOT) und die progressive Form, auch genannt Fibrodysplasia ossificans progressiva (Myositis ossificans progressiva, MOP)[5]. Die Grundlage zur Entstehung der MOT ist das ▶ Abb.…”

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Myositis ossificans traumatica im kraniozervikalen Übergang – Fallbericht und Literaturübersicht

2017

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Myosits ossificans (MO) is a rare but important differential diagnosis for a heterotrophic bony tumor in the muscles. It is often misdiagnosed as a malignant tumor. With a previous trauma the diagnosis is myositis ossificans traumatic (MOT). In most cases, it is benign and predominantly seen in the big muscles. But there can be malignant etiologies too. We report a rare case of MO in the muscle of the craniocervical junction. This 37-year-old woman had a riding accident years ago. Because of persisting pain and cervical dysfunction, we did a total resection. MOT is a benign tumor that can be treated conservative in most cases. In case of persistent pain or neurological deficits, and especially for securing diagnosis, surgical resection is recommended.

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Myositis ossificans traumatica im kraniozervikalen Übergang – Fallbericht und Literaturübersicht

2017

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“…The diagnosis MOT can be made if trauma, characteristic clinical and radiological signs, as well as histopathological confirmation are presented [ 9 ]. Differential diagnosis must be performed to exclude malignancies like sarcomas, or chondrosarcomas, as well as other neoplasias like osteoma, haemangioma, osteochondroma, or nodular fascitis [ 10 ]. Also the anchored disc phenomen and myofibrotic contracture of muscle should be considered [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

Myositis ossificans traumatica of the masticatory muscles: etiology, diagnosis and treatment

Hanisch

Fröhlich

et al. 2018

Head Face Med

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BackgroundMyositis ossificans describes a heterotopic bone formation within a muscle. Thereby myositis ossificans is classified in two different groups: myositis ossificans progressiva (MOP) which describes a genetic autosomal dominant rare disease and myositis ossificans traumatica (MOT). The exact pathogenesis of MOT is unclear. The aim of this article was to analyse and interpret the existing literature reporting MOT of masticatory muscles and compare the results with our own clinical experience with MOT. Risk-factors, etiology, clinical features, diagnostic imaging, as well as different treatment options were evaluated and recommendations for the prevention, diagnosis, and therapy of MOT of the masticatory muscles were given.MethodsFollowing the PRISMA-Guidelines, a systematic search within the PubMed/Medline database with a view to record literature of MOT of the masticatory muscles was performed. Furthermore, the database of our own clinic was screened for cases of MOT.ResultsIn total, 63 cases of MOT of the masticatory muscles which were reported in English-based literature were included in this study. Overall, 25 female and 37 male patients could be analysed whereas one patient’s gender was unknown. Complication of wisdom-tooth infection (n = 3) as well as the results of dental procedures like dental extraction (n = 7), mandibular nerve block (n = 4), periodontitis therapy (n = 1) were reported as MOT cases. From the 15 reported cases that appeared after dental treatment like extraction or local anesthesia the medial pterygoid (n = 10) was the most affected muscle. Hereof, females were more affected (n = 9) than males (n = 6). The most reported clinical symptom of MOT was trismus (n = 54), followed by swelling (n = 17) and pain (n = 13). One clinical case provided by the authors was detected.ConclusionsDental procedures, such as local anesthesia or extractions, may cause MOT of the masticatory musculature. Demographical analyses demonstrate that females have a higher risk of developing MOT with respect to dental treatment. The most important treatment option is surgical excision. Subsequent physical therapy can have beneficial effects. Nevertheless, a benefit of interpositional materials and drugs as therapy of MOT of the masticatory muscles has not yet been proven. Myositis ossificans progressiva has to be excluded.Electronic supplementary materialThe online version of this article (10.1186/s13005-018-0180-6) contains supplementary material, which is available to authorized users.

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“…Le patient a développé une myosite ossifiante du muscle temporal gauche.DiscussionLa myosite ossifiante des muscles de la face est une pathologie rare. Elle est divisée en myosite ossifiante progressive, qui est une pathologie héréditaire avec des manifestations systémiques et myosite ossifiante traumatique (MOT), qui est une pathologie plus localisée[1][2][3][4][5][6][7][8][9][10][11][12][13]. Nous ne discuterons ici que de la myosite ossifiante traumatique.Elle est causée par un traumatisme majeur ou de multiples traumatismes mineurs.Plusieurs types de traumatismes ont été décrits: des extractions dentaires multiples,une migration d'un abcès odontogène, une injection d'anesthésique local, une génioplastie, un traitement orthodontique mal réalisé et un choc direct ou une [ N e m e s i s ] M y o s i t e o s s i f i a n t e d u m u s c l e t e m p o r a l a p r è s p o l y t r a u m a t i s m e fracture de la face [3].…”

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Myosite ossifiante du muscle temporal après polytraumatisme

Braem

Darche

Legros

2019

Nemesis

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La myosite ossifiante traumatique (MOT) du muscle temporal est une pathologie extrêmement rare. Une limitation de l’ouverture buccale est le symptôme clé. Les examens d’imagerie sont très utiles au diagnostic, le CT-scanner de la face étant l’examen le plus performant pour la détection de la MOT. Le meilleur traitement est la résection chirurgicale complète. Les cas de myosite ossifiante traumatique dans la région de la tête et du cou sont rares. Les atteintes au niveau du muscle temporal sont encore plus rares. Nous présentons ici le cas d’une ossification isolée du muscle temporal gauche après un polytraumatisme. L’intérêt de l’observation clinique du cas présenté est donc de documenter la littérature. Le diagnostic différentiel et les signes pathognomoniques présents sur les examens d’imagerie seront également détaillés.

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Myositis ossificans of the masseter muscle: A rare location. Report of a case and review of literature

Cited by 7 publications

References 10 publications

Myositis ossificans traumatica im kraniozervikalen Übergang – Fallbericht und Literaturübersicht

Myositis ossificans traumatica im kraniozervikalen Übergang – Fallbericht und Literaturübersicht

Myositis ossificans traumatica of the masticatory muscles: etiology, diagnosis and treatment

Myosite ossifiante du muscle temporal après polytraumatisme

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