Ploidy and karyotype complexity are powerful prognostic indicators in the Ewing's sarcoma family of tumors: A study by the United Kingdom Cancer Cytogenetics and the Children's Cancer and Leukaemia Group

Abstract excerpt

Ewing's sarcoma family tumors (ESFT) are characterized by the presence of EWSR1-ETS fusion genes. Secondary chromosome changes are frequently described, although their clinical significance is not clear. In this study, we have collected and reviewed abnormal karyotypes from 88 patients with primary ESFT and a rearrangement of 22q12. Secondary changes were identified in 80% (70/88) of tumors at diagnosis....

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