Pediatric nontraumatic myositis ossificans of the neck

Kokkosis, Angela A.; Balsam, Dvorah; Lee, Thomas K.; Schreiber, Z. Jacob

doi:10.1007/s00247-009-1165-1

Cited by 13 publications

(8 citation statements)

References 7 publications

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“…In the head and neck, myositis ossificans has been reported in the temporalis, masseter, buccinator, and sternocleiodomastoid muscles. As the lesions mature, they shrink, and 30% of cases resolve entirely (8,41).…”

Section: Myositis Ossificansmentioning

confidence: 98%

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Soft Tissue Tumors of the Head and Neck: Imaging-based Review of the WHO Classification

Razek

Huang²

2011

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The World Health Organization (WHO) system for defining and classifying soft tissue tumors is usually applied to lesions that occur in the trunk and extremities, but it also provides an excellent framework for characterizing nonepithelial extraskeletal tumors of the head and neck. Although nonepithelial extraskeletal tumors are in the minority among head and neck lesions, they are by no means rare. The WHO classification system recognizes nine major types based on histologic differentiation: adipocytic, fibroblastic or myofibroblastic, fibrohistiocytic, smooth muscle, skeletal muscle, vascular, pericytic, and chondro-osseous tumors, as well as soft tissue tumors of uncertain differentiation. Tumors of each histologic type may be further subclassified on the basis of their biologic behavior as benign, intermediate (ie, having malignant potential), or malignant. Imaging plays an important role in the noninvasive diagnosis and characterization of nonepithelial soft tissue tumors of the head and neck, providing clues about tumor grade, composition, extent, and involvement of adjacent structures. Although the imaging characteristics of many such tumors are nonspecific, consideration of the clinical history in concert with the imaging findings may help limit the differential diagnosis or even allow reliable diagnosis of some of these tumors.

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Section: Myositis Ossificansmentioning

confidence: 98%

“…demonstrate the signal intensity characteristics of bone, with a well-defined, hypointense rim and trabeculae, dense fibrosis, and central adipose tissue. CT demonstrates a well-defined geometric hypodense mass with peripheral calcification in the earlier phases; mature lesions demonstrate dense calcification (8,41).…”

Section: Giant Cell Angiofibromamentioning

confidence: 98%

Soft Tissue Tumors of the Head and Neck: Imaging-based Review of the WHO Classification

Razek

Huang²

2011

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108

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“…It is usually confined to a single muscle or muscle group, and is most common in young (mean age, 23.8 years), athletic men within the second and third decade of life [ 3 , 5 , 6 ]. Over 75% of cases of MO occur in the large skeletal muscles of proximal extremities (the quadriceps and brachialis muscles are the most common sites) [ 2 , 3 , 5 – 7 ], and location in the lumbar spine is rare. The pathogenesis of MO remains unclear, although trauma is the most common cause.…”

Section: Discussionmentioning

confidence: 99%

Non-Traumatic Myositis Ossificans in the Lumbar Spine

et al. 2014

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Patient: Male, 31Final Diagnosis: Myositis ossificansSymptoms: Back pain • motion restriction • tenderness in lumbar regionMedication: —Clinical Procedure: —Specialty: NeurologyObjective:Rare diseaseBackground:Myositis ossificans is a non-neoplastic benign reactive bone and cartilage matrix-producing pseudotumor that develops in skeletal muscles adjacent to the joint. The clinical and pathologic appearance of myositis ossificans varies depending on the time elapsed after heterotopic bone formation. Although its etiology is unclear, it usually occurs at the site of the injured muscle, most commonly in large muscles of the extremities, especially the quadriceps and brachialis. It rarely occurs in the paravertebral muscle of the lumbar spine.Case Report:We present the rare case of a 31-year-old Turkish man with calcifying myositis ossificans not associated with trauma, referred to our hospital with severe low back pain with restriction of low back motions. Radiological investigation suggested a sclerotic osteoblastic on the left facet joint of L4–5. To confirm the diagnosis, the patient was managed surgically by total excision of the mass, which resulted in a good functional recovery. At his 12-month follow-up examination, he was neurologically intact and no recurrence was seen.Conclusions:Cases like this should be investigated well, so careful correlation of the clinical and radiologic findings with taking a biopsy is necessary to confirm diagnosis.

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“…FOP usually begins in the shoulder and spreads progressively from axial to appendicular, cranial to caudal and proximal to distal sites 5 . In most cases, the disease commences during the early years of infancy or childhood and is often discovered by chance.…”

Section: Discussionmentioning

confidence: 99%

Myositis Ossificans in a 4-year-old Child

Boon¹

2010

MOJ

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Sprengel's shoulder and myositis ossificans (MO) are rarely seen concomitantly. This report is about a rare case in a 4 year-old girl who presented with right shoulder deformity and pain associated with right proximal arm swelling.A 4 year old girl with complaints of right shoulder pain for the past 7 months was referred to the orthopaedic clinic. The pain was of gradual onset, slowly increasing in severity over a period of 7 months, but with no preceding history of trauma. The girl was unable to raise her right upper limb fully. Otherwise, she had no other complaints. The patient was born via spontaneous vaginal delivery with an uneventful perinatal history. Her developmental milestones were up to date and she was totally well and normally active prior to the onset of pain. No siblings report similar symptoms.

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Pediatric nontraumatic myositis ossificans of the neck

Cited by 13 publications

References 7 publications

Soft Tissue Tumors of the Head and Neck: Imaging-based Review of the WHO Classification

Soft Tissue Tumors of the Head and Neck: Imaging-based Review of the WHO Classification

Non-Traumatic Myositis Ossificans in the Lumbar Spine

Myositis Ossificans in a 4-year-old Child

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