title: Postoperative recurrence solitary fibrous tumor of the pelvic with malignant transformation.
abstract: A 48-year-old man with a solitary fibrous tumor of the pelvic underwent resection, but recurrent tumor was found 4 years later. Recurrent solitary fibrous tumor of the pelvic with malignant progression is rare. Solitary fibrous tumor of the pelvic often has an indolent clinical course, so postoperative surveillance may necessitate long-term follow-up because of the potential adverse biological behavior of this tumor, which may lead to repeated recurrences and/or malignant transformation.
authors.affiliation: School of Medical and Life Sciences, Shandong Academy of Medical Sciences, Jinan University Jinan, Shandong, China ; Radiation Oncology Ward 2, Shandong Cancer Hospital and Institute Jinan, Shandong, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Gao
authors.affiliation: Radiation Oncology Ward 2, Shandong Cancer Hospital and Institute Jinan, Shandong, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Oncology Ward 2, Zibo City The Fourth People' s Hospital Zibo, China.
authors.forename: Yu-Ying
authors.initials: YY
authors.lastname: Li
authors.affiliation: Radiation Oncology Ward 2, Shandong Cancer Hospital and Institute Jinan, Shandong, China.
authors.forename: Yong-Hua
authors.initials: YH
authors.lastname: Yu
authors.affiliation: Radiation Oncology Ward 2, Shandong Cancer Hospital and Institute Jinan, Shandong, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Qu
authors.affiliation: Department of Pathology, Shandong Cancer Hospital and Institute Jinan, Shandong, China.
authors.forename: Yong-Sheng
authors.initials: YS
authors.lastname: Gao
authors.affiliation: School of Medical and Life Sciences, Shandong Academy of Medical Sciences, Jinan University Jinan, Shandong, China ; Radiation Oncology Ward 2, Shandong Cancer Hospital and Institute Jinan, Shandong, China.
authors.forename: Shuo
authors.initials: S
authors.lastname: Zhang
keywords: Solitary fibrous tumor; malignant transformation; neoplasm recurrence; pelvic