Differences in intraosseous and extraosseous post-chemotherapy regression of Ewing sarcomas and their influence on prognosis

ConclusionsOn average, regression of ES seems to be worse in the extraosseous tumor compartment following preoperative chemotherapy. Moreover, extraosseous tumor regression may have a stronger prognostic influence on event-free survival than intraosseous regression.
Source: Pathology Research and Practice - Category: Pathology Source Type: research