Collaborations between SSO and the Connective Tissue Oncology Society (CTOS) series.

Abstract

s by the scientific committee before the meeting and after evaluating their oral presentations. From a surgical oncology perspective, they represent the variety of topics covered by specific sessions during the meeting. Three rare tumor situations are addressed: the paper by van Broekhoven et al. provides population-based data on aggressive fibromatosis (desmoid tumors), showing that there is a significant increase in the incidence of the disease, which more than doubles in number by increasing age of the people affected, even when the patients are still quite young and in the middle of their life span. The report out of the EURO-EWING-99 trial by Bedetti et al. on Ewing sarcomas located in the chest wall analyzed whether irradiation is required after an R0 resection, as proposed by the study protocol. This could not be verified, as the data showed an inferior outcome even with combined therapy. The treatment of giant cell tumor of the bone has undergone a major overhaul with the use of denosumab, a RANK ligand inhibitor. Rutkowski et al. report a phase 2 study demonstrating that preoperative drug treatment resulted in a less morbid procedure or could result in abandoning surgery completely. Assessing the effects of radiotherapy on surgery is a crucial topic, and the four other papers deal with this topic. Griffin et al. analyzed the influence of the time interval between irradiation and surgery on wound complication rates in extremity sarcoma and found that there was a clear Society of Surgical Oncology 2015 First Received: 5 June 2015; Published Online: 7 July 2015 P. Hohenberger, MD, PhD e-mail: peter.hohenberger@umm.de Ann Surg Oncol (2015) 22:2815–2816 DOI 10.1245/s10434-015-4690-1