Extraosseous Ewing sarcoma with foci of neuroblastoma-like differentiation associated with EWSR1(Ewing sarcoma breakpoint region 1)/FLI1 translocation without prior chemotherapy
Human Pathology, 06/21/2012
Vali K et al. – The final diagnosis corresponds to an extraosseous Ewing sarcoma with foci of neuroblastoma–like differentiation. This is the first case, documented by molecular studies, in which neuroblastoma–like differentiation has been noted in primitive neuroectodermal tumor/Ewing sarcoma without prior chemotherapy.