Concomitant organ resection does not improve outcomes in primary retroperitoneal well-differentiated liposarcoma: A retrospective cohort study at a major sarcoma center.

Concomitant organ resection was not associated with a survival benefit in RP WDLPS in this study. In patients with primary RP WDLPS, we recommend selective resection of contiguous organs only if there is clinical suspicion of invasion.