Factors Influencing the Outcome of Patients with Primary Ewing Sarcoma of the Sacrum

Rechl, Victor Ranft, Andreas Bhadri, Vivek Brichard, Benedicte [UCL] Dirksen, Uta et al.

Background. Ewing sarcoma (EwS) is a rare and highly malignant bone tumor primarily affecting children, adolescents, and young adults. The pelvis, trunk, and lower extremities are the most common sites, while EwS of the sacrum as a primary site is very rare, and only few studies focusing on this location are published. Due to the anatomical condition, local treatment is challenging in sacral malignancies. We analyzed factors that might influence the outcome of patients suffering from sacral EwS.