8Lewis JJ,Leung D,Woodruff JM,et al.Retroperitoneal soft-tissue sarcoma:analysis of 500 patients treated and followed at a single institution.Ann Surg,1998,228:355-365.
9Erzen D,Sencar M,Novak J.Retroperitoneal sarcoma:25 years of experience with aggressive surgical treatment at the institute of oncology,Ljubljana.J Surg Oncol,2005,91:1-9.
10Errario T,Karakousis CP.Retroperitoneal sarcomas:grade and survival.Arch Surg,2003,138:248-251.
4Correas JM,Bridal L, Lesavre A, et al. Ultrasound contrast agents; properties,principles of action, teloerance and artifact. Eur Radiol, 2001,11 :1316-1328.
5Albrecht T, Oldenburg A, Hohmann J, et al. Imaging of liver metastases with contrast-specific low MI real-time ultrasound and SonoVue. Eur Radiol, 2003,13 (suppl 3) : N79-86.
6Strobel D, Krodel J, Martus P,et al. Clinical evaluation of contrast enhanced color Doppler sonography in the differential diagnosis of liver tumor. J Clin Ultrasound, 2000,28 : 1-13.
7Orden MR, Jurvelin JS, Kirkinen PP. Kinetics of a US contrast agent in benign and malignant adnexal tumors. Radiology, 2003, 226:405-410.
8Merrt H, Sauget S, Giraudeau B, et al. Contrast enhanced sonography helps discrimination of benign from malignant adnexal masses. J Ultrasound Med, 2004,23: 1629-1639.
9Serio G, Tenchini P, Nifosi F, et al. Surgical strategy in primary retroperitoneal tumours. Br J Surg, 1989, 76:385-389.
10Jenkins MP, Alvaranga JC, Thomas JM. The management of retroperitoneal soft tissue sarcomas. Eur J Cancer, 1996, 32A: 622-629.
2Wu J M, Montgomery E. Classification and pathology[J].Surg Clin North Am, 2008, 88(11) : 483-520.
3Katz NU, Choi EA, Pollock RE. Current concepts in multimodality therapy for retroperitoneal sarcoma[J]. ExpertRev Anticancer Ther, 2007, 7: 159-168.
4Fletcher CD, Hogendoorn World Health Bridge JA, PC, et al. Organization classification of soft tissue and bone tumours. Lyon: IARC Press. 2013.
5Nishino M, Hayakawa K, Minami M, et al. Primary retroperitoneal neoplasms:CT and MR imaging findings with anatomic and pathologic diagnostic clues [J]. Radiographics, 2003, 23(1):45 -57.
6An JY, Heo JS, Hoh JH, et al. Primary malignant retroperitoneal tumors:analysis of a single institutional experience. Eur J Surg Oncol, 2007,33:376-382.