Intra- and Extra- Pelvic Multidisciplinary Surgical Approach of Retroperitoneal Sarcoma: Case Series Report

Abstract

Objective: We aim to describe our experience of multidisciplinary surgical resection of retroperitoneal sarcoma (RPS), including intra- and extrapelvic approaches.Method: Multidisciplinary surgery is an anatomical approach combining intra- and extraperitoneal access within the same surgery to achieve complete RPS removal. This retrospective review of the records of patients who underwent multidisciplinary surgery for RPS analyzed surgical and survival outcomes.Result: Eight patients underwent 10 intra- and extrapelvic surgical resection and their median mass size was 12.75 cm (range, 6–45.5 cm). Using an intrapelvic approach, laparoscopy-assisted surgery was performed in 4 cases and laparotomy surgery in 6 cases. Using an extrapelvic approach, ilioinguinal and posterior approaches were used in 4 cases each, prone position and midline skin incision were shared in 1 case. All patients’ RPS masses were removed completely and 4 patients achieved R0 resection through intra- and extrapelvic surgery. Additionally, pelvic lymph node dissections or prophylactic fixation or revision of structures were conducted. The median estimated blood loss was 2000 mL (range, 300–20 000 mL) and the median hospitalization was 12.6 days (range, 9–69 days). Reoperation was needed in 2 patients (one for wound necrosis, the other for bowel perforation and wound necrosis). The median overall survival rate and median progression-free survival were 64.6 months and 13.7 months, respectively.Conclusion: RPS are therapeutically challenging based on their locations and high risk of recurrence. Considering that, intra- and extrapelvic surgical approach could improve the macroscopic security of the surgical margin.