Myositis Ossificans of the Temporal Muscle as a Primary Scalp Tumor-Case Report-

Uematsu, Yoshihiko; Nishibayashi, Hiroki; Fujita, Katsuzo; Matsumoto, Hiroyuki; Itakura, Tohru

doi:10.2176/nmc.45.56

Cited by 13 publications

(17 citation statements)

References 7 publications

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“…MOC most frequently occurs in the flexor muscles of the upper arm, the quadriceps femoris and the abductor muscles of the thigh [1]. Occurrence within the head and neck musculature is decidedly uncommon but the lesion has been reported in the paraspinal, masseter and temporalis muscles [17–20]. Our case is the first to report the appearance of MOC within the buccinator as an unusual postoperative complication of mandibular third molar surgery.…”

Section: Discussionmentioning

confidence: 87%

Myositis Ossificans Circumscripta of the Buccinator Muscle: First Report of a Rare Complication of Mandibular Third Molar Extraction

Wiggins¹,

Thurber²,

Abramovitch³

et al. 2008

Journal of Oral and Maxillofacial Surgery

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Myositis ossificans is a self-limiting ossifying process that most often develops following mechanical trauma to skeletal musculature. It chiefly affects the skeletal muscles of extremities of young athletically active adult males. Myositis ossificans is rare in children except for children affected by heritable disorder known as progressive myositis ossificans (fibrodysplasia ossificans progressiva). Children with this disorder develop ossification of muscles and associated soft tissue in early childhood without prior history of trauma. Traumatic form of myositis ossificans also known as myositis ossificans circumscripta (MOC) is rarely encountered in the head and neck musculature. We report a case of MOC within the buccinator which developed as a postoperative complication of mandibular third molar surgery. During extraction of a left mandibular third molar in a 16-year old male, a tooth fragment was accidently displaced into the adjacent soft tissue. Retrieval of this tooth fragment caused significant soft tissue trauma. Eighteen months after his third molar surgery, the patient continued to have pain and tenderness anterior to the left mandibular ramus. Radiographic imaging revealed a well-defined ovoid radiopaque mass within the left buccinator muscle. The lesion was surgically removed and the post-surgical course of the patient was uneventful. Histological findings of the mass were characteristic for myositis ossificans.

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Section: Discussionmentioning

confidence: 87%

Myositis Ossificans Circumscripta of the Buccinator Muscle: First Report of a Rare Complication of Mandibular Third Molar Extraction

Wiggins¹,

Thurber²,

Abramovitch³

et al. 2008

Journal of Oral and Maxillofacial Surgery

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“…It is difficult to diagnose and usually appears in adolescents or young adult men. MOT is frequently reported in the orthopedic literature Case Report (2,5,6) and is rarely found in the head or neck, including the masticatory muscle (6,7). Here, we report a case of MOT involving the medial pterygoid muscle which had developed as a postoperative complication of endodontic treatment.…”

Section: Introductionmentioning

confidence: 84%

Myositis ossificans traumatica of the medial pterygoid muscle: a case report

et al. 2010

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“…Myositis ossificans of the head and neck region is more commonly found in the masseteric, 3 temporalis, 5,9 buccinator, 10 pterygoideus, 11 sternomastoid 12 and rarely in the scaleneus medius 13 muscles. The case reported here was found in an unusual location; the orbital plate of the frontal bone.…”

Section: Discussionmentioning

confidence: 99%

“…8 Surgical excision is the main stay of treatment for myositis ossificans circumscripta. 2,3,9,10 Previous reports of this pathology occurring in the head and neck region are case reports involving the temporalis 5,9 and the masticatory 3,10,11 muscles. We therefore present a case of limitation of ocular movement from myositis ossificans circumscripta in a very unusual location; the orbital plate of the frontal bone with no previous history of trauma.…”

Section: Introductionmentioning

confidence: 99%

Myositis ossificans circumscripta of the supra-orbital region: A case report

Ajike

Mohammed

Adebayo³

et al. 2007

Ann Afr Med

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Myositis ossificans circumscripta is a pathological condition characterized by formation of bony tissue within the skeletal muscles following repeated trauma. A case of myositis ossificans circumscripta of the supra-orbital region in a 25-year-old man is presented and the pertinent literature is reviewed. To the best our knowledge this benign lesion has not been reported previously in the orbital region the world literature. Clinically the patient presented with a swelling and proptosis of the right eye. Radiologically there was a rounded opacity with well defined margin. Lesion was initially misdiagnosed as a fibroosseous lesion; however microscopic examination indicated matured myositis ossificans. Lesion was excised via a bicoronal flap. Careful clinical, radiological and pathologic evaluation is required to make this uncommon diagnosis in an unusual location such as the supra-orbital region to avoid unnecessary surgical mutilation of the patient. Key words: Myositis ossificans, supraorbital RésuméLa Myosite circumscripta ossificane est un état pathologique caractérisé par la formation de tissu osseux dans le muscle squelettique à la suite des traumatismes répétés. Un cas de la myosite circumscripta ossificane de la région supra orbitale chez un homme âgé de 25 ans est ici présenté et aussi la pertinence de la littérature est révisée. A notre connaissance, cette lésion bénigne n'a pas été signalée précédemment dans la région orbitale de la littérature du monde. Cliniquement le patient s'est présenté atteint du gonflement et du propose de l'oeil droit. Radiologiquement, il y avait une opacité arrondie avec des marges bien définies. Lésion a été au départ mal diagnostiqué comme une fibro-lésion osseuse ; toutefois, l'examen microscopique avait indiqué la myosite ossification mûre. Lésion a été excisée par l'intermédiaire d'un bicoronal flap. Prise en charge clinique, radiologique et évaluation pathologique est nécessaire pour faire ce diagnostique rare dans une situation inhabituelle telle que la région supra orbitale afin d'éviter les mutilations chirurgicales évitable chez le patient Mots clés Myosite ossificane, supra orbitale

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Myositis Ossificans of the Temporal Muscle as a Primary Scalp Tumor-Case Report-

Cited by 13 publications

References 7 publications

Myositis Ossificans Circumscripta of the Buccinator Muscle: First Report of a Rare Complication of Mandibular Third Molar Extraction

Myositis Ossificans Circumscripta of the Buccinator Muscle: First Report of a Rare Complication of Mandibular Third Molar Extraction

Myositis ossificans traumatica of the medial pterygoid muscle: a case report

Myositis ossificans circumscripta of the supra-orbital region: A case report

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