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Related Experiment Videos

Periosteal Ewing sarcoma

L G Shapeero1, D Vanel, M Sundaram

  • 1Department of Radiology, Institut Gustave-Roussy, Villejuif, France.

Radiology
|June 1, 1994
PubMed
Summary
This summary is machine-generated.

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Periosteal Ewing sarcoma (PES) presents as a subperiosteal mass in extremities, distinct from other Ewing sarcomas. Imaging and pathology reveal unique characteristics and a less aggressive clinical course.

Area of Science:

  • Orthopedic Oncology
  • Radiology
  • Pathology

Background:

  • Periosteal Ewing sarcoma (PES) is a rare variant of Ewing sarcoma.
  • Understanding its distinct imaging and clinical features is crucial for diagnosis and management.

Purpose of the Study:

  • To evaluate the imaging findings, histopathologic features, and clinical course of patients with periosteal Ewing sarcoma.

Main Methods:

  • Review of conventional radiographs, CT scans, and MR images in 11 patients (10 adolescents, 1 adult).
  • Correlation of imaging findings with histopathologic examination.

Main Results:

  • PES masses were predominantly in proximal extremities, with diaphyseal or metadiaphyseal locations.
  • Imaging revealed subperiosteal masses with periosteal elevation (Codman triangle) and reaction, without medullary invasion or matrix calcifications.

Related Experiment Videos

  • MR imaging and histopathology confirmed subperiosteal location and sparing of cancellous bone.

    • Conclusions:

    • Periosteal Ewing sarcoma (PES) is characterized by its subperiosteal location, male predominance, and absence of presenting metastases, differentiating it from medullary and soft-tissue Ewing sarcomas.
    • Imaging characteristics and clinical course of PES resemble other periosteal sarcomas, with the notable exception of absent matrix calcifications.