title: Myositis ossificans of the masseter muscle: A rare location. Report of a case and review of literature.
abstract: BACKGROUND
  Myositis Ossificans is a rare heterotopic bone formation within a muscle being the masticatory muscles exceptionally involved. In most cases there is a previous trauma, bearing in mind that there may be many other etiologies. CT scan and panoramic radiographs along with histological findings are essential diagnostic aids.
  We report a rare case of MO of masseter muscle in 49 years-old woman after repetitive wisdom tooth infection with the discussion of clinical, radiological and histological features.
  
  
  CONCLUSIONS
  MO is a rare disease of masticatory muscles being the masseter the most frequently affected. Wide surgical excision with free margins is the treatment of choice although close postoperative monitoring it's essential to avoid relapses.
  
  
  BACKGROUND
  Myositis ossificans, myositis ossificans traumatica, masticatory muscles, masseter muscle, trauma.
authors.affiliation: MD. Resident, Oral and Maxillofacial Surgery Department, Vall d'Hebrón Hospital. Barcelona, Spain.
authors.forename: Laia
authors.initials: L
authors.lastname: Fité-Trepat
authors.affiliation: MD. Resident, Oral and Maxillofacial Surgery Department, Vall d'Hebrón Hospital. Barcelona, Spain.
authors.forename: Míriam
authors.initials: M
authors.lastname: Martos-Fernández
authors.affiliation: PhD, MD. Department of Pathology, Vall d'Hebrón Hospital. Barcelona, Spain.
authors.forename: Margarita
authors.initials: M
authors.lastname: Alberola-Ferranti
authors.affiliation: MD. Resident, Pathology Department, Vall d'Hebrón Hospital. Barcelona, Spain.
authors.forename: Carolina
authors.initials: C
authors.lastname: Romanini-Montecino
authors.affiliation: MD, DDS. Assistant Surgeon, Oral and Maxillofacial Surgery Department, Vall d'Hebrón Hospital, Barcelona, Spain.
authors.forename: Manel
authors.initials: M
authors.lastname: Saez-Barba
authors.affiliation: PhD MD, DDS. Head of Oral and Maxillofacial Surgery Department, Vall d'Hebrón Hospital. Barcelona, Spain. Researcher of the VHIR group.
authors.forename: Coro
authors.initials: C
authors.lastname: Bescós-Atín