Post traumatic myositis ossificans: Sonographic findings

Michele Abate, Vincenzo Salini, Eugenio Rimondi, Costantino Errani, Marco Alberghini, Mario Mercuri, Patrizia Pelotti

Research output: Contribution to journalArticlepeer-review


Purpose: The aim of this paper is to describe the sonographic (US) features of post traumatic myositis ossificans (PTMO). Methods: Fifteen patients with histopathological diagnosis of PTMO were included. The following US parameters were evaluated: presence of a mass, calcifications, power Doppler signals, and relationship with adjacent structures. Results: Five patients (33.3%) were diagnosed as early PTMO and 10 (66.6%) as mature PTMO. In both early and mature PTMO, US showed an oval hypoechoic mass, without infiltrative borders, located in a muscular belly. In the early phase, a center of less echogenicity was observed, associated with an outer sheet-like hyperechoic peripheral rim, while, in the mature phase, peripheral calcification created more reflections and distal acoustic shadowing was observed. Conclusions: US is highly sensitive in the detection of PTMO, helps differentiate between PTMO and malignant soft tissue tumors, and can be used for follow-up of the lesions.

Original languageEnglish
Pages (from-to)135-140
Number of pages6
JournalJournal of Clinical Ultrasound
Issue number3
Publication statusPublished - Mar 2011


  • Musculoskeletal system
  • Myositis ossificans
  • Soft tissue calcification
  • Ultrasound

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Medicine(all)


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