ESTRO 2025 - Abstract Book

S1718

Clinical - Sarcoma & skin cancer & malignant melanoma

ESTRO 2025

Keywords: malignanz melanoma, abscopal effect, ICI + RT

3806

Poster Discussion Radiotherapy in Ewing Sarcoma Patients: Results from an Italian Reference Centre

Costanza Maria Donati 1,2 , Elena Natoli 1,2 , Patrick Duhanxhiu 1,2 , Giorgio Coco 1,2 , Arina A Zamfir 2 , Erika Galietta 1,2 , Costantino Errani 3,4 , Ayano Aso 1,3 , Hisaki Aiba 3,5 , Davide M Donati 3 , Alessio Giuseppe Morganti 1,2 , Silvia Cammelli 1,2 1 Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, Bologna, Italy. 2 Radiation Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy. 3 Clinica Ortopedica E Traumatologica III a Prevalente Indirizzo Oncologico, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy. 4 Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum, University of Bologna, Bologna, Italy. 5 Department of Orthopaedic Surgery, Nagoya City University, Nagoya, Japan

Purpose/Objective: To evaluate outcomes following local treatment with definitive external beam radiotherapy (RT) or surgery combined with external beam RT in a single-institution cohort of patients with Ewing sarcoma (ES).