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Petracco et al.                                                                                                                                                                      Solitary fibrous tumor of the bladder

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           The World Health Organization classification of tumors   vogue. Histopathology 1997;31:568-76.
           of soft tissue in 2013 identifies the SFTs among the   4.   Mosquera  JM,  Fletcher  CD.  Expanding  the  spectrum  of  malignant
                                                                 progression  in  solitary  fibrous  tumors:  a  study  of  8  cases  with  a
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           behavior can sometimes be aggressive and distant   5.   Goldblum  JR,  Folpe  AL,  Weiss  SW,  Enzinger  FM.  Enzinger  and
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           count and necrosis, while  the feature more frequently   Solitary  fibrous  tumour  of  the  urinary  bladder  in  a  young  woman
           related with local recurrence is the presence of positive   presenting with haemodynamic-relevant gross haematuria. Eur Urol
           surgical margins if resectability is difficult. [11]  2008;54:1188-91.
                                                              7.   Dozier J, Jameel Z, McCain DA, Hassoun P, Bamboat ZM. Massive
                                                                 malignant solitary fibrous tumor arising from the bladder serosa: a
           This  is  the  first  description  of  a  very  small,   case report. J Med Case Rep 2015;9:46.
           subcentimeter SFT reported in the literature. Since, in   8.   Mozafarpour S, Khorramirouz R, Tajali A, Salavati A, Kajbafzadeh
           our case, no malignant characteristics were present, a   AM. Surgically treated bladder hemangiopericytoma/solitary fibrous
           conservative approach after an endoscopic complete    tumor: report of a 12-year asymptomatic follow-up. Int Urol Nephrol
           resection was adopted. Currently the patient is being   2014;46:483-6.
           followed but without recurrence.                   9.   Tzelepi V, Zolota V, Batistatou A, Fokaefs E. Solitary fibrous tumor
                                                                 of the urinary bladder: report of a case with long-term follow-up and
           Financial support and sponsorship                     review of the literature. Eur Rev Med Pharmacol Sci 2007;11:101-6.
           Nil.                                               10.  Leite KR, Srougi M, Miotto A, Camara-Lopes LH. Solitary fibrous
                                                                 tumor in bladder wall. Int Braz J Urol 2004;30:406-9.
                                                              11.  Bruzzone  A,  Varaldo  M,  Ferrarazzo  C,  Tunesi  G,  Mencoboni  M.
           Conflicts of interest                                 Solitary fibrous tumor. Rare Tumors 2010;2:e64.
           There are no conflicts of interest.                12.  Wang T, Chen R, Qiao J, Hu T, Liu J, Yang W, Ye Z. Solitary fibrous
                                                                 tumor in bladder: a case report. J Huazhong Univ Sci Technolog Med
           Patient consent                                       Sci 2010;30:412-4.
           Obtained.                                          13.  Kibar  Y,  Uzar  AI,  Erdemir  F,  Ozcan  A,  Coban  H,  Seckin  B.
                                                                 Hemangiopericytoma arising from the wall of the urinary bladder. Int
           Ethics approval                                       Urol Nephrol 2006;38:243-5.
           Ethics approval was obtained  prior to the         14.  Westra WH, Grenko RT, Epstein J. Solitary fibrous tumor of the lower
                                                                 urogenital tract: a report of five cases involving the seminal vesicles,
           commencement of the study.                            urinary bladder, and prostate. Hum Pathol 2000;31:63-8.
                                                              15.  Otta RJ, Acosta MA, Gordillo C. A rare case of solitary fibrous tumour
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