Ewing's sarcoma MRI
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Suveenkrishna Pothuru, M.B,B.S. [2];Assistant Editor(s)-In-Chief: Michael Maddaleni, B.S.
Overview
On MRI, Ewing's sarcoma is characterized by low to intermediate signal on T1, heterogenously high signal intensity on T2, and heterogenous but prominent enhancement on T1 contrast.
MRI
- MRI provides the most precise definition of local extent of Ewing's sarcoma including the degree of expansion as well as the involvement of blood vessels and nerves in the tumor.[1]
- MRI is a very important tool for surgical planning as well as staging the tumor. They are also important for evaluating the extent of soft tissue masses.
- MRI should be routinely used in the work-up of malignant tumors. MRI will show the full bony and soft tissue extent and relate the tumor to other nearby anatomic structures (e.g. vessels).
On MRI, signal characteristics of Ewing's sarcoma include:[2]
- T1:
- Low to intermediate signal
- T2:
- Heterogeneously high signal
- T1 C+ (Gd):
- Heterogeneous but prominent enhancement
References
- ↑ Iwamoto Y (2007). "Diagnosis and treatment of Ewing's sarcoma". Japanese Journal of Clinical Oncology. 37 (2): 79–89. doi:10.1093/jjco/hyl142. PMID 17272319. Retrieved 2011-12-21. Unknown parameter
|month=ignored (help) - ↑ Ewing's sarcoma. Dr Amir Rezaee◉ and Dr Frank Gaillard◉ et al.Radiopaedia.org 2015. http://radiopaedia.org/articles/ewing-sarcoma