Observational Study
Copyright ©The Author(s) 2022.
World J Clin Cases. Sep 26, 2022; 10(27): 9693-9702
Published online Sep 26, 2022. doi: 10.12998/wjcc.v10.i27.9693
Table 1 Characteristics of patients with retroperitoneal sarcoma (n = 8)
Mean age (yr)42.75 ± 18.4
Mean BMI22.4 ± 2.4
Initial symptoms, n (%)
Palpable mass4 (50)
Pain on the specific site4 (50)
Median mass size (long axis, cm)12.75 ± 11.7
Order of surgery, n (%)
Primary3 (30)
Secondary2 (20)
Tertiary2 (20)
More than tertiary3 (30)
History of neoadjuvant or adjuvant treatment, n (%)
Neoadjuvant treatment2 (25)
Adjuvant treatment8 (100)
Surgical outcome
Median overall survival (mo, median)64.6
Progression-free survival (mo, median)13.7
Died patients due to disease, n (%)2 (25)
Pathology, n (%)
Liposarcoma2 (25)
Leiomyosarcoma1 (12.5)
Malignant peripheral nerve sheath tumor1 (12.5)
Osteosarcoma2 (25)
Chondrosarcoma1 (12.5)
Low-grade fibromyxoid sarcoma1 (12.5)
Table 2 Surgical approach and outcomes (total 10 cases)
PNNumber of surgeryIntra pelvic surgery
Extra pelvic surgery
PathologyResection margin
EBL (mL)HD (d)OS (mo)PFS (mo)
Approach method and operation title
Approach method and operation title
Intra pelvic surgery
Extra pelvic surgery
1Primary surgeryLaparoscopyPosterior approach of hipWDLPSR0R03001565.313.7
Mass excisionWide excision
1Secondary surgeryLaparotomyLaparotomyWDLPSR1R120001765.350
Mass excisionMarginal excisionneurolysis
Dissection and mobilization of Lt. internal iliac vessel
Ligation of Lt. iliac vein
25th surgeryLaparotomyIlioinguinal approachLMSR1R0125019979
Mass excisionWide excision
3Secondary surgeryLaparoscopyIlioinguinal approachMPNSTR0R1100004263.94.3
Rt. RSO and PLNDWide excision
Sigmoid colon mobilization
Dissection of Rt. external and internal iliac vessel
4Primary surgeryLaparotomyPosterior approach of hipMyxoid liposarcomaR0R120001655.749
Mass excisionWide excision neurolysis
Dissection of Lt. common and external iliac vessel
Ligation of Lt. internal iliac artery
5Tertiary surgeryLaparotomyPosterior approach of hipOsteosarcomaR0R020000525211.5
Mass excisionWide excision, neurotomy L5-S1
Rectum mobilization
6Tertiary surgeryLaparotomyIlioinguinal approachLGFMSR1R01200067206.828.9
Mass excisionMarginal excision skin flap and graft
Int. iliac-deep femoral artery, allograft bypass
Rt. D-J catheter insertion with primary bladder repair
6Quaternary surgeryLaparotomyProne positionOsteosarcomaR1R070012206.814.6
Mass excisionWide excision
7Primary surgeryLaparoscopyPosterior approach of hipMalignant spindle cell tumorR0R0100006911.47.5
Mass excisionWide excision neurolysis L5-S3, Lt.
Dissection and mobilization of Lt. external and internal iliac vessel
85th surgeryLaparoscopyIlioinguinal approachChondrosarcomaR0R0300911513.7
Mass excision, Rt. PLNDMarginal excision
Primary closure of Rt. external iliac vein