title: [Pseudomalignant, hyperacute circumscribed myositis. Contribution and limitations of echography. Review of the literature. Apropos of a case].
abstract: The very sudden onset of a painful muscular tumefaction was suggestive of a para-ostal osteosarcoma or myosarcoma. Ultrasound imaging showed a heterogeneous echogenic mass with several extending shadow cones, raising the possibility of the benign nature of the lesion, but urgent operation showed the pseudomalignant circumscribed myositis nature of the affection.
mesh_terms: D000328:Adult; D002114:Calcinosis / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D009135:Muscular Diseases / Q000175:diagnosis; D009220:Myositis / Q000175:diagnosis*; D012509:Sarcoma / Q000175:diagnosis; D012983:Soft Tissue Neoplasms / Q000175:diagnosis; D013997:Time Factors; D014463:Ultrasonography
vernacular_title: Myosite circonscrite hyperaiguë, pseudomaligne. Apports et limites de l'échographie. Revue de la littérature. A propos d'un cas.