Abstract:Objective To investigate treatment strategy and clinical significance of re-surgery and multiple times surgery in recurrent retroperitoneal liposarcoma. Methods A total 16 cases of recurrent retroperitoneal liposarcoma performed with several times re-operations from January 2013 to August 2017 in department of general surgery, Peking University First Hospital were analyzed retrospectively. All patients were followed for 30 months averagely (12~62 months). Results All 16 cases of recurrent retroperitoneal liposarcoma were undergone 30 operations. Operations lasted for 360 (60~840) min in average, and the median operation time was 270min; the average blood loss was 3755 (50~33 100) ml, and the median blood loss was 800ml. Combined adjacent organs were systematically resected in 28 operations. Comparing with primary retroperitoneal liposarcoma, the recurrent cases had no statistical difference in the maximum diameter of tumor and multi focal lesions (P > 0.05). However, the recurrent cases group had longer operation time, more intraoperative bleeding and higher combined organ resection rate significantly than primary group (P < 0.05). 4 patients were alive without recurrence, 8 patients were alive with recurrence, and 4 patients died during follow-up. Conclusions Reoperations and multiple operations could be feasible on recurrent retroperitoneal liposarcoma with multidisciplinary evaluation and optimized preoperative preparation.