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Magnetic resonance imaging helps in the early diagnosis of myositis ossificans in children

Published in Pediatric surgery international. 1999, vol. 15, no. 3-4, p. 287-9
Abstract Two cases on myositis ossificans circumscripta (MOC) in the arm are reported. Plain X-ray films and magnetic resonance imaging (MRI) were performed in both cases. In the first, an intramuscular tumor-like mass without calcifications was found on MRI with soft-tissue edema extension. In the second, MRI disclosed additional bone-marrow edema. The diagnosis of MOC was confirmed by biopsy in one case and by follow-up in the other. MOC is a benign soft-tissue lesion that is rare in children, with an acute course and usually spontaneously favorable evolution. The differential diagnosis from an infection or a malignant tumor remains difficult. The best imaging modalities are conventional radiography and MRI. The MRI patterns of MOC are typical but not pathognomonic; typical MRI findings in conjunction with clinical symptoms during the early phase of MOC permit the postponement of a biopsy or aggressive surgical procedures. Surgery is indicated for cases not showing typical MOC calcifications at a later stage.
Keywords AdolescentArmChild, PreschoolDiagnosis, DifferentialFemaleHumansMagnetic Resonance ImagingMaleMyositis Ossificans/diagnosis
PMID: 10370048
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Research group Radiologie neuro-diagnostique et neuro-interventionnelle en pédiatrie (842)
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HANQUINET, Sylviane et al. Magnetic resonance imaging helps in the early diagnosis of myositis ossificans in children. In: Pediatric surgery international, 1999, vol. 15, n° 3-4, p. 287-9. doi: 10.1007/s003830050580 https://archive-ouverte.unige.ch/unige:74326

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Deposited on : 2015-07-27

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