Collecting and Storing Biological Samples From Patients With Ewing Sarcoma
Conditions
- Askin Tumor
- Localized Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor
- Metastatic Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor
- Recurrent Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor
Interventions
- OTHER: Laboratory Biomarker Analysis
Sponsor
Children's Oncology Group
Collaborators