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Fetal Pediatr Pathol. 2012 Dec;31(6):341-8. doi: 10.3109/15513815.2012.659397. Epub 2012 Mar 20.

Ewing sarcoma with 7;22 translocation: three new cases and clinicopathological characterization.

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Department of Pathology, Children's Healthcare of Atlanta, Atlanta, Georgia 30322, USA.


Ewing sarcoma (ES) is the second most common primary bone malignancy in children and is typically characterized by a translocation involving the EWS gene on chromosome 22 and a member of the ETS family of genes: FLI1 (90%), ERG1 (5%), ETV1 (1%), ETV4 (1%), and FEV (1%). We identified three new cases of t(7;22) (p22;q12) (EWS-ETV1) ES and a literature search revealed an additional six cases. In comparison to conventional ES with t(11;22) (q24;q12) (EWS-FLI1), the t(7;22) ES variant has a higher propensity for females and children in a younger age group and it occurs more commonly in extraosseous locations.

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