title: Postoperative Radiotherapy for the Treatment of Solitary Fibrous Tumor With Malignant Transformation of the Pelvic: A Rare Case Report With Literature Review.
abstract: Solitary fibrous tumor of the pelvic is an uncommon neoplasm with nonspecific symptoms. Reports of malignant transformation are especially rare. We report a case of solitary fibrous tumor in pelvic. A unique feature of our case compared with previously reported is that this patient relapsed with malignant transformation and had significant response to radiotherapy. The patient was initially treated with surgery, followed by postoperative dimensional conformal intensity modulated radiation therapy (dynamic MLC VRIAN 23EX Linac, inversely optimized by the Eclipse system) to provide a radical cure for residual tumor.In this case, there were no signs of recurrence after six and a half years of further follow-up, indicating that postoperation radiotherapy may be an effective treatment for SFT with malignant transformation in pelvic.
authors.affiliation: From the Radiation Oncology Ward 2, Shandong Cancer Hospital and Institute (CG, YZ, WQ, JL, X-RZ, Y-HY); School of Medical and Life Sciences, Shandong Academy of Medical Sciences, Jinan University (CG, X-RZ); and Department of Dermatology, JiNan Dermatosis Prevention and Control Hospital, Jinan, Shandong, China (MJ).
authors.forename: Chao
authors.initials: C
authors.lastname: Gao
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhang
authors.forename: Ming
authors.initials: M
authors.lastname: Jing
authors.forename: Wei
authors.initials: W
authors.lastname: Qu
authors.forename: Jia
authors.initials: J
authors.lastname: Li
authors.forename: Xiang-Rong
authors.initials: XR
authors.lastname: Zhao
authors.forename: Yong-Hua
authors.initials: YH
authors.lastname: Yu
mesh_terms: D001707:Biopsy, Needle; D002471:Cell Transformation, Neoplastic / Q000473:pathology*; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000473:pathology* / Q000532:radiotherapy; D010388:Pelvis; D018714:Radiotherapy, Adjuvant; D050397:Radiotherapy, Intensity-Modulated / Q000379:methods; D035583:Rare Diseases; D018570:Risk Assessment; D054364:Solitary Fibrous Tumors / Q000473:pathology* / Q000532:radiotherapy* / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods; D016896:Treatment Outcome; D018608:Ultrasonography, Doppler