title: Retroperitoneal extraskeletal osteosarcoma: imaging findings and transarterial chemoembolization.
abstract: Extraskeletal osteosarcoma (EOS) is an uncommon and usually highly aggressive mesenchymal tumor. Retroperitoneal extraskeletal osteosarma (REOS) is exceedingly rare. Due to the rare nature of the disease, both the diagnosis and the management of REOS can be challenging. We present the clinical history, CT findings, angiographic manifestations, and use of transarterial chemoembolization for treatment in a case of REOS. To our knowledge, the angiographic features of and attempt at transarterial treatment of REOS have not been reported in the literature.
authors.affiliation: Department of Radiology, Changhai Hospital, Second Military Medical University, No.168 Changhai Road, Shanghai 200433, People's Republic of China. chyyzhj@hotmail.com
authors.forename: Huo-Jun
authors.initials: HJ
authors.lastname: Zhang
authors.forename: Ji-Jin
authors.initials: JJ
authors.lastname: Yang
authors.forename: Jian-Ping
authors.initials: JP
authors.lastname: Lu
authors.forename: Jin
authors.initials: J
authors.lastname: Sheng
authors.forename: Min
authors.initials: M
authors.lastname: Yuan
authors.forename: Xu
authors.initials: X
authors.lastname: Jiang
authors.forename: Yu-Xiao
authors.initials: YX
authors.lastname: Li
authors.forename: Sanjay
authors.initials: S
authors.lastname: Gupta
mesh_terms: D000368:Aged; D000792:Angiography / Q000379:methods; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage*; D001707:Biopsy, Needle; D016461:Chemoembolization, Therapeutic / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D009367:Neoplasm Staging; D012516:Osteosarcoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000628:therapy*; D015642:Radiology, Interventional / Q000379:methods; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000628:therapy*; D018570:Risk Assessment; D014057:Tomography, X-Ray Computed / Q000379:methods; D016896:Treatment Outcome