title: [Diagnostic problems of circumscribed myositis ossificans: presentation of an atypical case].
abstract: The authors report the case of a 22-year-old female suffering from thigh pain for 5 months. The first diagnosis considered was circumscribed myositis ossificans but the duration of symptoms and the radiological aspect mimicking some malignant features led to consider parosteal sarcoma as a possible diagnosis. Surgical resection was therefore requested and histological analysis confirmed the diagnosis of circumscribed myositis ossificans. This case emphasizes the difficulty in differentiating circumscribed myositis ossificans from a slowly growing tumor as both can be associated with increasing pain and a malignant radiological aspect. A surgical approach is therefore frequently necessary for definitive diagnosis and treatment.
authors.affiliation: Service de Chirurgie Orthopédique et de Traumatologie, Clinique de l'Espérance, Montegnée, Belgium.
authors.forename: J L
authors.initials: JL
authors.lastname: Gielen
authors.forename: Y
authors.initials: Y
authors.lastname: Lecomte
authors.forename: J C
authors.initials: JC
authors.lastname: Bienfait
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D009221:Myositis Ossificans / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D010146:Pain / Q000209:etiology; D011859:Radiography; D012509:Sarcoma / Q000175:diagnosis; D013514:Surgical Procedures, Operative
vernacular_title: Problème diagnostique de la myosite ossifiante circonscrite: présentation d'un cas atypique.