Observational Study on Treatment of Skeletal Ewing Sarcoma at Diagnosis
Observational prospective trial aimed to collect the collect demographic, clinical, surgical, pathological and molecular characteristics and treatment from patients affected by skeletal Ewing Sarcoma
• Diagnosis of Ewing's sarcoma of the bone
• Diagnosis of Ewing-like sarcoma (round cell sarcoma with fusion of the EWSR1 gene with others not of the ETS family, sarcoma with CIC rearrangement or sarcoma with BCOR rearrangement)
• Diagnosis of extraosseous Ewing's sarcoma for patients
• Age at diagnosis \<50 years
• Assessment of the extent of the disease at onset in accordance with the European Society of Medical Oncology guidelines
• Patients or parents oe guardians of minors who have given their written informed consent to participate in the study