Localized Myxofibrosarcomas: Roles of Surgical Margins and Adjuvant Radiation Therapy.

Purpose: The objective of this study was to describe the outcome and prognostic factors for adults treated for localized myxofibrosarcoma.

Methods And Materials: We conducted a retrospective multicenter study of 425 nonmetastatic patients who underwent surgery between January 1996 and December 2015 in French National Group and were enrolled in the Conticabase. Pathologic diagnosis was systematically reviewed by expert pathologists.