Ewing sarcoma

Ewing sarcoma, according to the latest 2020 WHO classification of tumors of bone and soft tissue, belongs to the category of “undifferentiated small round cell sarcomas of bone and soft tissue.” After osteosarcoma, it is the second most common malignant bone tumor in children and young adults. Most Ewing sarcomas develop in the bone and about 30% of soft tissues. In this paper, all the epidemiological, clinical and imaging characteristics will be reviewed.