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Scientific article
English

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

Published inPediatric surgery international, vol. 15, no. 3-4, p. 287-289
Publication date1999
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
  • Adolescent
  • Arm
  • Child, Preschool
  • Diagnosis, Differential
  • Female
  • Humans
  • Magnetic Resonance Imaging
  • Male
  • Myositis Ossificans/diagnosis
Citation (ISO format)
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. 287–289. doi: 10.1007/s003830050580
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ISSN of the journal0179-0358
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