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Traumatic myositis ossificans circumscripta (MOC)
  1. Manel Landolsi1,
  2. Tej Mrad2
  1. 1Faculty of Medicine, University of Tunis El Manar, Tunis, Tunisia
  2. 2Department of Radiology, Military Hospital Tunisia, Tunis, Tunisia
  1. Correspondence to Dr Manel Landolsi, landolsimanel{at}


We report a case of a 29-year-old man who had been a victim of a public road accident. Four weeks later, the patient developed an isolated right thigh mass located ventrally in the distal one-third of the thigh. The mass was painful and associated with fever and inflammatory syndrome. Plain radiographs showed a bilateral calcified thickening of soft tissues with well-defined bony margins. Ultrasound objectified diffuse calcifications of soft tissues.CT scan-confirmed the diagnosis of myositis ossificans circumscripta, showing a bilateral thickening of the vastus intermedius chief of the quadriceps dotted with calcifications, extending along the femur axis. These calcifications have well-defined bony margins separated from the periosteum by a lucent zone.

  • radiology
  • orthopaedic and trauma surgery
  • musculoskeletal syndromes

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  • Contributors ML was responsible for the conception of the article, the data collection concerning the medical history of the patient, the physical examination, the interpretation of images and TM participated in the writing of the article, the literature review and the discussion of the case with similar articles.

  • Competing interests None declared.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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