A malignant tumor that arises in a primitive nerve cell within bone or soft tissue and affects children and adolescents, especially between ages 10 and 20. Ewing sarcoma usually appears in the large bones of the arms and legs and the flat bones of the pelvis, spine, and ribs. Treatments include chemotherapy, surgery, and radiation therapy. The prim [..]

A type of cancer that forms in bone or soft tissue. Also called peripheral primitive neuroectodermal tumor and pPNET.

A primary sarcoma of the bone that usually arises in the diaphyses of long bones, ribs, and flat bones of children and adolescents

A malignant Tumor of the bone which always arises in the medullary Tissue, occurring more often in cylindrical bones. The Tumor occurs usually before the age of 20, about twice as frequently in males [..]