Ewing sarcoma is the second most common malignant bone tumor occurring in children and young adults, and accounts for 10-15% of all primary bone tumors. The annual incidence is approximately 0.6/million total population, and it usually occurs between the ages of 10 and 20 years. Ewing's sarcoma is in 85% of cases associated with the translocation t(11;22)(q24;q12), which leads to the formation of the EWSR1-FLI1 fusion gene. In another 10-15% of cases the translocation t(21;22)(q22;q12) generates the EWSR1-ERG fusion, whereas the remaining 1-5% of cases may harbor one of several possible translocations, each resulting in a fusion gene containing a portion of the EWSR1 gene and a member of the ETS family of transcription factors.
Category
Cancer
Brite
Human diseases in ICD-11 classification [BR:br08403]
02 Neoplasms
Malignant neoplasms, except primary neoplasms of lymphoid, haematopoietic, central nervous system or related tissues
Malignant neoplasms, stated or presumed to be primary, of specified sites, except of lymphoid, haematopoietic, central nervous system or related tissues
Malignant mesenchymal neoplasms
2B52 Ewing sarcoma, primary site
H00035 Ewing sarcoma
Cancer-associated carbohydrates [br08441.html]
H00035
