1Nishizawa K, Kanno T, Takahashi T, et al. A case of retroperitoneal dedifferentiated liposarcoma initially diagnosed as malignant fibrous histiocytoma: a case report [ J]. Hinyokika Kiyo,2006,52( 1 ) : 11 - 14.
2Windham TC,Pisters PW. Retroperitoneal sarcomas [ J ]. Cancer Control,2005,12 ( 1 ) :36 - 43.
3Choi YY, Kim YJ, Jin SY. Primary liposarcoma of the ascending colon: a rare case of mixed type presenting as hemoperitoneum combined with other type of retroperitoneal liposarcoma [ J ]. BMC Cancer, 2010,10 : 239. doi : 10.1186/1471-2407-10-239.
4Na JC, Choi KH,Yang SC, et al. Surgical experience with retroperitoneal liposarcoma in a single korean tertiary medical center [ J ]. Korean J Urol, 2012,53 ( 5 ) :310 - 316.
5Lee SY, Goh BK, Teo MC, et al. Retroperitoneal liposarcomas: the experience of a tertiary Asian center [Jl. World J Surg Oncol, 2011,9: 12. doi: 10. 1186/ 1477-7819-9-12.
6Han HH, Choi KH, Kim DS, et al. Retroperitoneal giant liposareoma [J]. Korean J Urol,2010,51 (8) :579 -582.
8Tzeng CW, Smith JK, Heslin MJ. Soft tissue sarcoma: preoperative and postoperative imaging for staging [ J l- Surg Oncol Clin N Am, 2007,16 ( 2 ) : 389 - 402.
9Pereira JM, Sirlin CB, Pinto PS, et al. CT and MR imaging of extrahepatic fatty masses of the abdomen and pelvis: techniques, diagnosis, differential diagnosis, and pitfalls [ J]. Radiographics ,2005,25 ( 1 ) :69 - 85.
10Jaovisidha S, Suvikapakmaakul Y, Woratanarat P, et al. MR imaging of fat-containing tumours: the distinction between lipoma and liposarcoma [ J ]. Singapore Med ], 2010,51 (5) :418 -423.