title: Periosteal chondrosarcoma.
abstract: OBJECTIVE
  The purpose of this article is to identify the typical imaging features of periosteal chondrosarcoma on radiography, CT, and MRI.
  
  
  CONCLUSIONS
  Periosteal chondrosarcoma is a rare low-grade malignant cartilaginous tumor arising from the external surface of bone. Imaging features are often specific. Recognizing periosteal chondrosarcoma and differentiating it from other surface tumors is of capital importance because the prognosis is excellent after adequate local surgery alone.
authors.affiliation: Department of Radiology, Institut Kassab d'orthopédie, Ksar Said, Tunis 2010, Tunisia. skanderchaabane@yahoo.fr
authors.forename: Skander
authors.initials: S
authors.lastname: Chaabane
authors.forename: Mouna Chelli
authors.initials: MC
authors.lastname: Bouaziz
authors.forename: Cyrine
authors.initials: C
authors.lastname: Drissi
authors.forename: Leila
authors.initials: L
authors.lastname: Abid
authors.forename: Mohamed Fethi
authors.initials: MF
authors.lastname: Ladeb
mesh_terms: D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms / Q000175:diagnosis*; D002813:Chondrosarcoma / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D010521:Periosteum / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult