Korean J Gastroenterol.  2013 Oct;62(4):253-255. 10.4166/kjg.2013.62.4.253.

Retroperitoneal Extraskeletal Ewing's Sarcoma

• Lee SH
• Jang BI

• KMID: 1792746
• DOI: http://doi.org/10.4166/kjg.2013.62.4.253

Abstract

No abstract available.

MeSH Terms

Antigens, CD/metabolism
Cell Adhesion Molecules/metabolism
Female
Humans
Immunohistochemistry
Peritoneum/metabolism/pathology
Sarcoma, Ewing/*diagnosis/pathology/radiography
Tomography, X-Ray Computed
Young Adult
Antigens, CD
Cell Adhesion Molecules

Figure

• 

  Fig. 1. Initial CT scan. (A) Pre-enhance axial image shows 3.7 cm sized cystic mass without solid component. (B) This mass is not enhanced after contrast administration.

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  Fig. 2. Follow-up CT scan after 6 months. (A) The mass has enlarged to about 6 cm in size. (B) Contrast-enhanced abdominal CT scan shows 6 cm sized heterogenous enhancing mass with central low attenuation at retrocaval area.

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  Fig. 3. (A) Microscopic finding of ultrasound guided biopsy shows small round neoplastic cells with irregular nuclei and sparse cytoplasm (H&E,×400). (B) This tumor cells shows strong diffuse membrane immunohistochemical reactivity with CD99 antibodies (CD 99, ×400).

Reference

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