Ewing's sarcoma x ray: Difference between revisions
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On x-ray, Ewing's sarcoma is characterized by a permeative lytic lesion, periosteal reaction, and soft tissue [[calcification]]. | On x-ray, Ewing's sarcoma is characterized by a permeative lytic lesion, periosteal reaction, and soft tissue [[calcification]]. | ||
==X Ray== | ==X-Ray== | ||
X ray add valuable information in the initial evaluation of Ewing's sarcoma.The appearance of these tumors is variable. Common findings include: | X-ray add valuable information in the initial evaluation of Ewing's sarcoma.The appearance of these tumors is variable. Common findings include: | ||
*Permeative lytic lesion in the [[metaphysis]] and [[diaphysis]] of the bone with a prominent soft tissue mass extending from the bone. | *Permeative lytic lesion in the [[metaphysis]] and [[diaphysis]] of the bone with a prominent soft tissue mass extending from the bone. | ||
*Periosteal reaction usually is present, and it often has an '''onionskin or sunburst pattern''', which indicates an aggressive process. | *Periosteal reaction usually is present, and it often has an '''onionskin or sunburst pattern''', which indicates an aggressive process. | ||
Revision as of 15:54, 31 December 2015
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Ewing's sarcoma Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Ewing's sarcoma x ray On the Web |
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American Roentgen Ray Society Images of Ewing's sarcoma x ray |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2];Associate Editor(s)-in-Chief: Suveenkrishna Pothuru, M.B,B.S. [3] Assistant Editor(s)-In-Chief: Michael Maddaleni, B.S.
Overview
On x-ray, Ewing's sarcoma is characterized by a permeative lytic lesion, periosteal reaction, and soft tissue calcification.
X-Ray
X-ray add valuable information in the initial evaluation of Ewing's sarcoma.The appearance of these tumors is variable. Common findings include:
- Permeative lytic lesion in the metaphysis and diaphysis of the bone with a prominent soft tissue mass extending from the bone.
- Periosteal reaction usually is present, and it often has an onionskin or sunburst pattern, which indicates an aggressive process.
- Codman triangle may be present at the margins of the lesion. These result from the elevation of the periosteum and central destruction of the periosteal reaction caused by the tumor.
- The wide zone of transition (e.g. permeative) is the most useful plain film characteristic in differentiation of benign versus aggressive or malignant lytic lesions.
- Soft tissue calcification is uncommon, seen in less than 10% of cases.
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![X-Ray of a child with Ewing's sarcoma of the tibia.[1]](/images/1/10/EwingSarcomaTibia.jpg)
X-Ray of a child with Ewing's sarcoma of the tibia.[1] -
![Radiograph demonstrates classic sunburst pattern of periosteal reaction.[2]](/images/2/27/Ewings-sarcoma-101.jpg)
Radiograph demonstrates classic sunburst pattern of periosteal reaction.[2]
![X-Ray of a child with Ewing's sarcoma of the tibia.[1]](/index.php/File:EwingSarcomaTibia.jpg){kind=small}
![Radiograph demonstrates classic sunburst pattern of periosteal reaction.[2]](/index.php/File:Ewings-sarcoma-101.jpg)
References
- ↑ Ewing's sarcoma.https://en.wikipedia.org/wiki/Ewing%27s_sarcoma
- ↑ Image courtesy of Dr. John Hunter's. Radiopaedia (original file [1]). Creative Commons BY-SA-NC