What bones are affected by Ewings sarcoma?
The most frequent locations for the primary tumor are the pelvis, femur (thigh bone), tibia / fibula (bones of the lower leg), bones of the spine, ribs, and humerus (upper arm). Other bones are less common; however, Ewing’s sarcoma can potentially arise in any of the 206 bones in the body. It can also develop in the soft tissues without bone involvement.
