Ewing Sarcoma, Chest Wall (Askin's Tumor)

Michael P. D'Alessandro, M.D.
Peer Review Status: Internally Peer Reviewed

Etiology/Pathophysiology:
Tumor spreads in the marrow cavity and through the cortex into the periosteum and beyond with a tendency to infiltrate the soft tissues.

Pathology:
Not applicable

Imaging Findings:
Initially it may appear to be a subpleural or subcutaneous soft tissue mass. Later, rib expansion with destruction of the cortex and medulla, periosteal new bone formation and an associated soft tissue mass will be seen. Pleural effusions are often seen.

DDX:
Chest wall mass

• Osteosarcoma
• Fibrosarcoma
• Reticulum cell sarcoma
• Histiocytosis X
• Bone metastases
• Subacute or chronic osteomyelitis

References:

• Correlapedia
• Thoracopedia

Section Top | Title Page

See related Provider Topics Bone Cancer, Bones, Joints and Muscles or Cancers.

See related Patient Topics Bones, Joints and Muscles or Cancers.

All contents copyright © 1992-2004 the Author(s) and The University of Iowa. All rights reserved.

http://www.vh.org/pediatric/provider/radiology/PAP/ChestDiseases/EwingChestWall.html