Myosite ossifiante circonscrite de l'avant-bras

Myositis ossificans circumscripta is a benign lesion characterized by focal heterotopic soft tissue ossification and occurring in young people generally after localized trauma. The location of this case in the forearm is rare. The clinical signs, radiological appearance and the histological features can be confused with osseous or soft tissue sarcoma, as was the case in our patient.